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authorMichael Stapelberg <stapelberg@debian.org>2014-06-19 09:22:53 +0200
committerMichael Stapelberg <stapelberg@debian.org>2014-06-19 09:22:53 +0200
commit8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1 (patch)
tree4449f2036cccf162e8417cc5841a35815b3e7ac5 /src/cmd/5l
parentc8bf49ef8a92e2337b69c14b9b88396efe498600 (diff)
downloadgolang-upstream/1.3.tar.gz
Imported Upstream version 1.3upstream/1.3
Diffstat (limited to 'src/cmd/5l')
-rw-r--r--src/cmd/5l/5.out.h85
-rw-r--r--src/cmd/5l/asm.c1542
-rw-r--r--src/cmd/5l/l.h349
-rw-r--r--src/cmd/5l/list.c427
-rw-r--r--src/cmd/5l/noop.c671
-rw-r--r--src/cmd/5l/obj.c731
-rw-r--r--src/cmd/5l/optab.c277
-rw-r--r--src/cmd/5l/pass.c409
-rw-r--r--src/cmd/5l/prof.c211
-rw-r--r--src/cmd/5l/softfloat.c91
-rw-r--r--src/cmd/5l/span.c937
11 files changed, 219 insertions, 5511 deletions
diff --git a/src/cmd/5l/5.out.h b/src/cmd/5l/5.out.h
index e8cf83ddd..9e8aceecb 100644
--- a/src/cmd/5l/5.out.h
+++ b/src/cmd/5l/5.out.h
@@ -198,6 +198,12 @@ enum as
AFUNCDATA,
APCDATA,
ACHECKNIL,
+ AVARDEF,
+ AVARKILL,
+ ADUFFCOPY,
+ ADUFFZERO,
+
+ AMRC, // MRC/MCR
ALAST,
};
@@ -233,62 +239,43 @@ enum as
#define SHIFT_AR 2<<5
#define SHIFT_RR 3<<5
+enum
+{
/* type/name */
-#define D_GOK 0
-#define D_NONE 1
+ D_GOK = 0,
+ D_NONE = 1,
/* type */
-#define D_BRANCH (D_NONE+1)
-#define D_OREG (D_NONE+2)
-#define D_CONST (D_NONE+7)
-#define D_FCONST (D_NONE+8)
-#define D_SCONST (D_NONE+9)
-#define D_PSR (D_NONE+10)
-#define D_REG (D_NONE+12)
-#define D_FREG (D_NONE+13)
-#define D_FILE (D_NONE+16)
-#define D_OCONST (D_NONE+17)
-#define D_FILE1 (D_NONE+18)
-
-#define D_SHIFT (D_NONE+19)
-#define D_FPCR (D_NONE+20)
-#define D_REGREG (D_NONE+21) // (reg, reg)
-#define D_ADDR (D_NONE+22)
-
-#define D_SBIG (D_NONE+23)
-#define D_CONST2 (D_NONE+24)
-
-#define D_REGREG2 (D_NONE+25) // reg, reg
+ D_BRANCH = (D_NONE+1),
+ D_OREG = (D_NONE+2),
+ D_CONST = (D_NONE+7),
+ D_FCONST = (D_NONE+8),
+ D_SCONST = (D_NONE+9),
+ D_PSR = (D_NONE+10),
+ D_REG = (D_NONE+12),
+ D_FREG = (D_NONE+13),
+ D_FILE = (D_NONE+16),
+ D_OCONST = (D_NONE+17),
+ D_FILE1 = (D_NONE+18),
+
+ D_SHIFT = (D_NONE+19),
+ D_FPCR = (D_NONE+20),
+ D_REGREG = (D_NONE+21), // (reg, reg)
+ D_ADDR = (D_NONE+22),
+
+ D_SBIG = (D_NONE+23),
+ D_CONST2 = (D_NONE+24),
+
+ D_REGREG2 = (D_NONE+25), // reg, reg
/* name */
-#define D_EXTERN (D_NONE+3)
-#define D_STATIC (D_NONE+4)
-#define D_AUTO (D_NONE+5)
-#define D_PARAM (D_NONE+6)
-
-/* internal only */
-#define D_SIZE (D_NONE+40)
-#define D_PCREL (D_NONE+41)
-#define D_GOTOFF (D_NONE+42) // R_ARM_GOTOFF
-#define D_PLT0 (D_NONE+43) // R_ARM_PLT32, 1st inst: add ip, pc, #0xNN00000
-#define D_PLT1 (D_NONE+44) // R_ARM_PLT32, 2nd inst: add ip, ip, #0xNN000
-#define D_PLT2 (D_NONE+45) // R_ARM_PLT32, 3rd inst: ldr pc, [ip, #0xNNN]!
-#define D_CALL (D_NONE+46) // R_ARM_PLT32/R_ARM_CALL/R_ARM_JUMP24, bl xxxxx or b yyyyy
-#define D_TLS (D_NONE+47) // R_ARM_TLS_LE32
+ D_EXTERN = (D_NONE+3),
+ D_STATIC = (D_NONE+4),
+ D_AUTO = (D_NONE+5),
+ D_PARAM = (D_NONE+6),
+};
/*
* this is the ranlib header
*/
#define SYMDEF "__.GOSYMDEF"
-
-/*
- * this is the simulated IEEE floating point
- */
-typedef struct ieee Ieee;
-struct ieee
-{
- int32 l; /* contains ls-man 0xffffffff */
- int32 h; /* contains sign 0x80000000
- exp 0x7ff00000
- ms-man 0x000fffff */
-};
diff --git a/src/cmd/5l/asm.c b/src/cmd/5l/asm.c
index 33cdf8096..5e9267b5b 100644
--- a/src/cmd/5l/asm.c
+++ b/src/cmd/5l/asm.c
@@ -35,43 +35,26 @@
#include "../ld/elf.h"
#include "../ld/dwarf.h"
-static Prog *PP;
char linuxdynld[] = "/lib/ld-linux.so.3"; // 2 for OABI, 3 for EABI
char freebsddynld[] = "/usr/libexec/ld-elf.so.1";
char openbsddynld[] = "XXX";
char netbsddynld[] = "/libexec/ld.elf_so";
char dragonflydynld[] = "XXX";
-
-int32
-entryvalue(void)
-{
- char *a;
- Sym *s;
-
- a = INITENTRY;
- if(*a >= '0' && *a <= '9')
- return atolwhex(a);
- s = lookup(a, 0);
- if(s->type == 0)
- return INITTEXT;
- if(s->type != STEXT)
- diag("entry not text: %s", s->name);
- return s->value;
-}
+char solarisdynld[] = "XXX";
static int
needlib(char *name)
{
char *p;
- Sym *s;
+ LSym *s;
if(*name == '\0')
return 0;
/* reuse hash code in symbol table */
p = smprint(".dynlib.%s", name);
- s = lookup(p, 0);
+ s = linklookup(ctxt, p, 0);
free(p);
if(s->type == 0) {
s->type = 100; // avoid SDATA, etc.
@@ -82,9 +65,9 @@ needlib(char *name)
int nelfsym = 1;
-static void addpltsym(Sym*);
-static void addgotsym(Sym*);
-static void addgotsyminternal(Sym*);
+static void addpltsym(Link*, LSym*);
+static void addgotsym(Link*, LSym*);
+static void addgotsyminternal(Link*, LSym*);
// Preserve highest 8 bits of a, and do addition to lower 24-bit
// of a and b; used to adjust ARM branch intruction's target
@@ -95,19 +78,19 @@ braddoff(int32 a, int32 b)
}
void
-adddynrela(Sym *rel, Sym *s, Reloc *r)
+adddynrela(LSym *rel, LSym *s, Reloc *r)
{
- addaddrplus(rel, s, r->off);
- adduint32(rel, R_ARM_RELATIVE);
+ addaddrplus(ctxt, rel, s, r->off);
+ adduint32(ctxt, rel, R_ARM_RELATIVE);
}
void
-adddynrel(Sym *s, Reloc *r)
+adddynrel(LSym *s, Reloc *r)
{
- Sym *targ, *rel;
+ LSym *targ, *rel;
targ = r->sym;
- cursym = s;
+ ctxt->cursym = s;
switch(r->type) {
default:
@@ -119,10 +102,10 @@ adddynrel(Sym *s, Reloc *r)
// Handle relocations found in ELF object files.
case 256 + R_ARM_PLT32:
- r->type = D_CALL;
+ r->type = R_CALLARM;
if(targ->type == SDYNIMPORT) {
- addpltsym(targ);
- r->sym = lookup(".plt", 0);
+ addpltsym(ctxt, targ);
+ r->sym = linklookup(ctxt, ".plt", 0);
r->add = braddoff(r->add, targ->plt / 4);
}
return;
@@ -134,54 +117,54 @@ adddynrel(Sym *s, Reloc *r)
case 256 + R_ARM_GOT32: // R_ARM_GOT_BREL
if(targ->type != SDYNIMPORT) {
- addgotsyminternal(targ);
+ addgotsyminternal(ctxt, targ);
} else {
- addgotsym(targ);
+ addgotsym(ctxt, targ);
}
- r->type = D_CONST; // write r->add during relocsym
+ r->type = R_CONST; // write r->add during relocsym
r->sym = S;
r->add += targ->got;
return;
case 256 + R_ARM_GOT_PREL: // GOT(S) + A - P
if(targ->type != SDYNIMPORT) {
- addgotsyminternal(targ);
+ addgotsyminternal(ctxt, targ);
} else {
- addgotsym(targ);
+ addgotsym(ctxt, targ);
}
- r->type = D_PCREL;
- r->sym = lookup(".got", 0);
+ r->type = R_PCREL;
+ r->sym = linklookup(ctxt, ".got", 0);
r->add += targ->got + 4;
return;
case 256 + R_ARM_GOTOFF: // R_ARM_GOTOFF32
- r->type = D_GOTOFF;
+ r->type = R_GOTOFF;
return;
case 256 + R_ARM_GOTPC: // R_ARM_BASE_PREL
- r->type = D_PCREL;
- r->sym = lookup(".got", 0);
+ r->type = R_PCREL;
+ r->sym = linklookup(ctxt, ".got", 0);
r->add += 4;
return;
case 256 + R_ARM_CALL:
- r->type = D_CALL;
+ r->type = R_CALLARM;
if(targ->type == SDYNIMPORT) {
- addpltsym(targ);
- r->sym = lookup(".plt", 0);
+ addpltsym(ctxt, targ);
+ r->sym = linklookup(ctxt, ".plt", 0);
r->add = braddoff(r->add, targ->plt / 4);
}
return;
case 256 + R_ARM_REL32: // R_ARM_REL32
- r->type = D_PCREL;
+ r->type = R_PCREL;
r->add += 4;
return;
case 256 + R_ARM_ABS32:
if(targ->type == SDYNIMPORT)
diag("unexpected R_ARM_ABS32 relocation for dynamic symbol %s", targ->name);
- r->type = D_ADDR;
+ r->type = R_ADDR;
return;
case 256 + R_ARM_V4BX:
@@ -195,10 +178,10 @@ adddynrel(Sym *s, Reloc *r)
case 256 + R_ARM_PC24:
case 256 + R_ARM_JUMP24:
- r->type = D_CALL;
+ r->type = R_CALLARM;
if(targ->type == SDYNIMPORT) {
- addpltsym(targ);
- r->sym = lookup(".plt", 0);
+ addpltsym(ctxt, targ);
+ r->sym = linklookup(ctxt, ".plt", 0);
r->add = braddoff(r->add, targ->plt / 4);
}
return;
@@ -209,28 +192,28 @@ adddynrel(Sym *s, Reloc *r)
return;
switch(r->type) {
- case D_PCREL:
- addpltsym(targ);
- r->sym = lookup(".plt", 0);
+ case R_CALLARM:
+ addpltsym(ctxt, targ);
+ r->sym = linklookup(ctxt, ".plt", 0);
r->add = targ->plt;
return;
- case D_ADDR:
+ case R_ADDR:
if(s->type != SDATA)
break;
if(iself) {
- adddynsym(targ);
- rel = lookup(".rel", 0);
- addaddrplus(rel, s, r->off);
- adduint32(rel, ELF32_R_INFO(targ->dynid, R_ARM_GLOB_DAT)); // we need a S + A dynmic reloc
- r->type = D_CONST; // write r->add during relocsym
+ adddynsym(ctxt, targ);
+ rel = linklookup(ctxt, ".rel", 0);
+ addaddrplus(ctxt, rel, s, r->off);
+ adduint32(ctxt, rel, ELF32_R_INFO(targ->dynid, R_ARM_GLOB_DAT)); // we need a S + A dynmic reloc
+ r->type = R_CONST; // write r->add during relocsym
r->sym = S;
return;
}
break;
}
- cursym = s;
+ ctxt->cursym = s;
diag("unsupported relocation for dynamic symbol %s (type=%d stype=%d)", targ->name, r->type, targ->type);
}
@@ -246,21 +229,21 @@ elfreloc1(Reloc *r, vlong sectoff)
default:
return -1;
- case D_ADDR:
+ case R_ADDR:
if(r->siz == 4)
LPUT(R_ARM_ABS32 | elfsym<<8);
else
return -1;
break;
- case D_PCREL:
+ case R_PCREL:
if(r->siz == 4)
LPUT(R_ARM_REL32 | elfsym<<8);
else
return -1;
break;
- case D_CALL:
+ case R_CALLARM:
if(r->siz == 4) {
if((r->add & 0xff000000) == 0xeb000000) // BL
LPUT(R_ARM_CALL | elfsym<<8);
@@ -270,7 +253,7 @@ elfreloc1(Reloc *r, vlong sectoff)
return -1;
break;
- case D_TLS:
+ case R_TLS:
if(r->siz == 4) {
if(flag_shared)
LPUT(R_ARM_TLS_IE32 | elfsym<<8);
@@ -287,26 +270,26 @@ elfreloc1(Reloc *r, vlong sectoff)
void
elfsetupplt(void)
{
- Sym *plt, *got;
+ LSym *plt, *got;
- plt = lookup(".plt", 0);
- got = lookup(".got.plt", 0);
+ plt = linklookup(ctxt, ".plt", 0);
+ got = linklookup(ctxt, ".got.plt", 0);
if(plt->size == 0) {
// str lr, [sp, #-4]!
- adduint32(plt, 0xe52de004);
+ adduint32(ctxt, plt, 0xe52de004);
// ldr lr, [pc, #4]
- adduint32(plt, 0xe59fe004);
+ adduint32(ctxt, plt, 0xe59fe004);
// add lr, pc, lr
- adduint32(plt, 0xe08fe00e);
+ adduint32(ctxt, plt, 0xe08fe00e);
// ldr pc, [lr, #8]!
- adduint32(plt, 0xe5bef008);
+ adduint32(ctxt, plt, 0xe5bef008);
// .word &GLOBAL_OFFSET_TABLE[0] - .
- addpcrelplus(plt, got, 4);
+ addpcrelplus(ctxt, plt, got, 4);
// the first .plt entry requires 3 .plt.got entries
- adduint32(got, 0);
- adduint32(got, 0);
- adduint32(got, 0);
+ adduint32(ctxt, got, 0);
+ adduint32(ctxt, got, 0);
+ adduint32(ctxt, got, 0);
}
}
@@ -321,13 +304,13 @@ machoreloc1(Reloc *r, vlong sectoff)
int
-archreloc(Reloc *r, Sym *s, vlong *val)
+archreloc(Reloc *r, LSym *s, vlong *val)
{
- Sym *rs;
+ LSym *rs;
if(linkmode == LinkExternal) {
switch(r->type) {
- case D_CALL:
+ case R_CALLARM:
r->done = 0;
// set up addend for eventual relocation via outer symbol.
@@ -352,29 +335,29 @@ archreloc(Reloc *r, Sym *s, vlong *val)
return -1;
}
switch(r->type) {
- case D_CONST:
+ case R_CONST:
*val = r->add;
return 0;
- case D_GOTOFF:
- *val = symaddr(r->sym) + r->add - symaddr(lookup(".got", 0));
+ case R_GOTOFF:
+ *val = symaddr(r->sym) + r->add - symaddr(linklookup(ctxt, ".got", 0));
return 0;
// The following three arch specific relocations are only for generation of
// Linux/ARM ELF's PLT entry (3 assembler instruction)
- case D_PLT0: // add ip, pc, #0xXX00000
- if (symaddr(lookup(".got.plt", 0)) < symaddr(lookup(".plt", 0)))
+ case R_PLT0: // add ip, pc, #0xXX00000
+ if (symaddr(linklookup(ctxt, ".got.plt", 0)) < symaddr(linklookup(ctxt, ".plt", 0)))
diag(".got.plt should be placed after .plt section.");
*val = 0xe28fc600U +
- (0xff & ((uint32)(symaddr(r->sym) - (symaddr(lookup(".plt", 0)) + r->off) + r->add) >> 20));
+ (0xff & ((uint32)(symaddr(r->sym) - (symaddr(linklookup(ctxt, ".plt", 0)) + r->off) + r->add) >> 20));
return 0;
- case D_PLT1: // add ip, ip, #0xYY000
+ case R_PLT1: // add ip, ip, #0xYY000
*val = 0xe28cca00U +
- (0xff & ((uint32)(symaddr(r->sym) - (symaddr(lookup(".plt", 0)) + r->off) + r->add + 4) >> 12));
+ (0xff & ((uint32)(symaddr(r->sym) - (symaddr(linklookup(ctxt, ".plt", 0)) + r->off) + r->add + 4) >> 12));
return 0;
- case D_PLT2: // ldr pc, [ip, #0xZZZ]!
+ case R_PLT2: // ldr pc, [ip, #0xZZZ]!
*val = 0xe5bcf000U +
- (0xfff & (uint32)(symaddr(r->sym) - (symaddr(lookup(".plt", 0)) + r->off) + r->add + 8));
+ (0xfff & (uint32)(symaddr(r->sym) - (symaddr(linklookup(ctxt, ".plt", 0)) + r->off) + r->add + 8));
return 0;
- case D_CALL: // bl XXXXXX or b YYYYYY
+ case R_CALLARM: // bl XXXXXX or b YYYYYY
*val = braddoff((0xff000000U & (uint32)r->add),
(0xffffff & (uint32)
((symaddr(r->sym) + ((uint32)r->add) * 4 - (s->value + r->off)) / 4)));
@@ -384,7 +367,7 @@ archreloc(Reloc *r, Sym *s, vlong *val)
}
static Reloc *
-addpltreloc(Sym *plt, Sym *got, Sym *sym, int typ)
+addpltreloc(Link *ctxt, LSym *plt, LSym *got, LSym *sym, int typ)
{
Reloc *r;
@@ -397,25 +380,25 @@ addpltreloc(Sym *plt, Sym *got, Sym *sym, int typ)
plt->reachable = 1;
plt->size += 4;
- symgrow(plt, plt->size);
+ symgrow(ctxt, plt, plt->size);
return r;
}
static void
-addpltsym(Sym *s)
+addpltsym(Link *ctxt, LSym *s)
{
- Sym *plt, *got, *rel;
+ LSym *plt, *got, *rel;
if(s->plt >= 0)
return;
- adddynsym(s);
+ adddynsym(ctxt, s);
if(iself) {
- plt = lookup(".plt", 0);
- got = lookup(".got.plt", 0);
- rel = lookup(".rel.plt", 0);
+ plt = linklookup(ctxt, ".plt", 0);
+ got = linklookup(ctxt, ".got.plt", 0);
+ rel = linklookup(ctxt, ".rel.plt", 0);
if(plt->size == 0)
elfsetupplt();
@@ -424,34 +407,34 @@ addpltsym(Sym *s)
// In theory, all GOT should point to the first PLT entry,
// Linux/ARM's dynamic linker will do that for us, but FreeBSD/ARM's
// dynamic linker won't, so we'd better do it ourselves.
- addaddrplus(got, plt, 0);
+ addaddrplus(ctxt, got, plt, 0);
// .plt entry, this depends on the .got entry
s->plt = plt->size;
- addpltreloc(plt, got, s, D_PLT0); // add lr, pc, #0xXX00000
- addpltreloc(plt, got, s, D_PLT1); // add lr, lr, #0xYY000
- addpltreloc(plt, got, s, D_PLT2); // ldr pc, [lr, #0xZZZ]!
+ addpltreloc(ctxt, plt, got, s, R_PLT0); // add lr, pc, #0xXX00000
+ addpltreloc(ctxt, plt, got, s, R_PLT1); // add lr, lr, #0xYY000
+ addpltreloc(ctxt, plt, got, s, R_PLT2); // ldr pc, [lr, #0xZZZ]!
// rel
- addaddrplus(rel, got, s->got);
- adduint32(rel, ELF32_R_INFO(s->dynid, R_ARM_JUMP_SLOT));
+ addaddrplus(ctxt, rel, got, s->got);
+ adduint32(ctxt, rel, ELF32_R_INFO(s->dynid, R_ARM_JUMP_SLOT));
} else {
diag("addpltsym: unsupported binary format");
}
}
static void
-addgotsyminternal(Sym *s)
+addgotsyminternal(Link *ctxt, LSym *s)
{
- Sym *got;
+ LSym *got;
if(s->got >= 0)
return;
- got = lookup(".got", 0);
+ got = linklookup(ctxt, ".got", 0);
s->got = got->size;
- addaddrplus(got, s, 0);
+ addaddrplus(ctxt, got, s, 0);
if(iself) {
;
@@ -461,31 +444,31 @@ addgotsyminternal(Sym *s)
}
static void
-addgotsym(Sym *s)
+addgotsym(Link *ctxt, LSym *s)
{
- Sym *got, *rel;
+ LSym *got, *rel;
if(s->got >= 0)
return;
- adddynsym(s);
- got = lookup(".got", 0);
+ adddynsym(ctxt, s);
+ got = linklookup(ctxt, ".got", 0);
s->got = got->size;
- adduint32(got, 0);
+ adduint32(ctxt, got, 0);
if(iself) {
- rel = lookup(".rel", 0);
- addaddrplus(rel, got, s->got);
- adduint32(rel, ELF32_R_INFO(s->dynid, R_ARM_GLOB_DAT));
+ rel = linklookup(ctxt, ".rel", 0);
+ addaddrplus(ctxt, rel, got, s->got);
+ adduint32(ctxt, rel, ELF32_R_INFO(s->dynid, R_ARM_GLOB_DAT));
} else {
diag("addgotsym: unsupported binary format");
}
}
void
-adddynsym(Sym *s)
+adddynsym(Link *ctxt, LSym *s)
{
- Sym *d;
+ LSym *d;
int t;
char *name;
@@ -495,20 +478,20 @@ adddynsym(Sym *s)
if(iself) {
s->dynid = nelfsym++;
- d = lookup(".dynsym", 0);
+ d = linklookup(ctxt, ".dynsym", 0);
/* name */
name = s->extname;
- adduint32(d, addstring(lookup(".dynstr", 0), name));
+ adduint32(ctxt, d, addstring(linklookup(ctxt, ".dynstr", 0), name));
/* value */
if(s->type == SDYNIMPORT)
- adduint32(d, 0);
+ adduint32(ctxt, d, 0);
else
- addaddr(d, s);
+ addaddr(ctxt, d, s);
/* size */
- adduint32(d, 0);
+ adduint32(ctxt, d, 0);
/* type */
t = STB_GLOBAL << 4;
@@ -516,12 +499,12 @@ adddynsym(Sym *s)
t |= STT_FUNC;
else
t |= STT_OBJECT;
- adduint8(d, t);
- adduint8(d, 0);
+ adduint8(ctxt, d, t);
+ adduint8(ctxt, d, 0);
/* shndx */
if(s->type == SDYNIMPORT)
- adduint16(d, SHN_UNDEF);
+ adduint16(ctxt, d, SHN_UNDEF);
else {
switch(s->type) {
default:
@@ -538,7 +521,7 @@ adddynsym(Sym *s)
t = 14;
break;
}
- adduint16(d, t);
+ adduint16(ctxt, d, t);
}
} else {
diag("adddynsym: unsupported binary format");
@@ -548,39 +531,27 @@ adddynsym(Sym *s)
void
adddynlib(char *lib)
{
- Sym *s;
+ LSym *s;
if(!needlib(lib))
return;
if(iself) {
- s = lookup(".dynstr", 0);
+ s = linklookup(ctxt, ".dynstr", 0);
if(s->size == 0)
addstring(s, "");
- elfwritedynent(lookup(".dynamic", 0), DT_NEEDED, addstring(s, lib));
+ elfwritedynent(linklookup(ctxt, ".dynamic", 0), DT_NEEDED, addstring(s, lib));
} else {
diag("adddynlib: unsupported binary format");
}
}
-vlong
-datoff(vlong addr)
-{
- if(addr >= segdata.vaddr)
- return addr - segdata.vaddr + segdata.fileoff;
- if(addr >= segtext.vaddr)
- return addr - segtext.vaddr + segtext.fileoff;
- diag("datoff %#x", addr);
- return 0;
-}
-
void
asmb(void)
{
- int32 t;
uint32 symo;
Section *sect;
- Sym *sym;
+ LSym *sym;
int i;
if(debug['v'])
@@ -627,13 +598,7 @@ asmb(void)
default:
if(iself)
goto ElfSym;
- case Hnoheader:
- case Hrisc:
- case Hixp1200:
- case Hipaq:
- debug['s'] = 1;
- break;
- case Hplan9x32:
+ case Hplan9:
symo = HEADR+segtext.len+segdata.filelen;
break;
ElfSym:
@@ -659,11 +624,11 @@ asmb(void)
elfemitreloc();
}
break;
- case Hplan9x32:
+ case Hplan9:
asmplan9sym();
cflush();
- sym = lookup("pclntab", 0);
+ sym = linklookup(ctxt, "pclntab", 0);
if(sym != nil) {
lcsize = sym->np;
for(i=0; i < lcsize; i++)
@@ -675,46 +640,14 @@ asmb(void)
}
}
- cursym = nil;
+ ctxt->cursym = nil;
if(debug['v'])
Bprint(&bso, "%5.2f header\n", cputime());
Bflush(&bso);
cseek(0L);
switch(HEADTYPE) {
default:
- case Hnoheader: /* no header */
- break;
- case Hrisc: /* aif for risc os */
- lputl(0xe1a00000); /* NOP - decompress code */
- lputl(0xe1a00000); /* NOP - relocation code */
- lputl(0xeb000000 + 12); /* BL - zero init code */
- lputl(0xeb000000 +
- (entryvalue()
- - INITTEXT
- + HEADR
- - 12
- - 8) / 4); /* BL - entry code */
-
- lputl(0xef000011); /* SWI - exit code */
- lputl(segtext.filelen+HEADR); /* text size */
- lputl(segdata.filelen); /* data size */
- lputl(0); /* sym size */
-
- lputl(segdata.len - segdata.filelen); /* bss size */
- lputl(0); /* sym type */
- lputl(INITTEXT-HEADR); /* text addr */
- lputl(0); /* workspace - ignored */
-
- lputl(32); /* addr mode / data addr flag */
- lputl(0); /* data addr */
- for(t=0; t<2; t++)
- lputl(0); /* reserved */
-
- for(t=0; t<15; t++)
- lputl(0xe1a00000); /* NOP - zero init code */
- lputl(0xe1a0f00e); /* B (R14) - zero init return */
- break;
- case Hplan9x32: /* plan 9 */
+ case Hplan9: /* plan 9 */
lput(0x647); /* magic */
lput(segtext.filelen); /* sizes */
lput(segdata.filelen);
@@ -724,14 +657,6 @@ asmb(void)
lput(0L);
lput(lcsize);
break;
- case Hixp1200: /* boot for IXP1200 */
- break;
- case Hipaq: /* boot for ipaq */
- lputl(0xe3300000); /* nop */
- lputl(0xe3300000); /* nop */
- lputl(0xe3300000); /* nop */
- lputl(0xe3300000); /* nop */
- break;
case Hlinux:
case Hfreebsd:
case Hnetbsd:
@@ -808,1224 +733,17 @@ nopstat(char *f, Count *c)
(double)(c->outof - c->count)/c->outof);
}
-void
-asmout(Prog *p, Optab *o, int32 *out, Sym *gmsym)
-{
- int32 o1, o2, o3, o4, o5, o6, v;
- int r, rf, rt, rt2;
- Reloc *rel;
-
-PP = p;
- o1 = 0;
- o2 = 0;
- o3 = 0;
- o4 = 0;
- o5 = 0;
- o6 = 0;
- armsize += o->size;
-if(debug['P']) print("%ux: %P type %d\n", (uint32)(p->pc), p, o->type);
- switch(o->type) {
- default:
- diag("unknown asm %d", o->type);
- prasm(p);
- break;
-
- case 0: /* pseudo ops */
-if(debug['G']) print("%ux: %s: arm %d\n", (uint32)(p->pc), p->from.sym->name, p->from.sym->fnptr);
- break;
-
- case 1: /* op R,[R],R */
- o1 = oprrr(p->as, p->scond);
- rf = p->from.reg;
- rt = p->to.reg;
- r = p->reg;
- if(p->to.type == D_NONE)
- rt = 0;
- if(p->as == AMOVB || p->as == AMOVH || p->as == AMOVW || p->as == AMVN)
- r = 0;
- else
- if(r == NREG)
- r = rt;
- o1 |= rf | (r<<16) | (rt<<12);
- break;
-
- case 2: /* movbu $I,[R],R */
- aclass(&p->from);
- o1 = oprrr(p->as, p->scond);
- o1 |= immrot(instoffset);
- rt = p->to.reg;
- r = p->reg;
- if(p->to.type == D_NONE)
- rt = 0;
- if(p->as == AMOVW || p->as == AMVN)
- r = 0;
- else if(r == NREG)
- r = rt;
- o1 |= (r<<16) | (rt<<12);
- break;
-
- case 3: /* add R<<[IR],[R],R */
- mov:
- aclass(&p->from);
- o1 = oprrr(p->as, p->scond);
- o1 |= p->from.offset;
- rt = p->to.reg;
- r = p->reg;
- if(p->to.type == D_NONE)
- rt = 0;
- if(p->as == AMOVW || p->as == AMVN)
- r = 0;
- else if(r == NREG)
- r = rt;
- o1 |= (r<<16) | (rt<<12);
- break;
-
- case 4: /* add $I,[R],R */
- aclass(&p->from);
- o1 = oprrr(AADD, p->scond);
- o1 |= immrot(instoffset);
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o1 |= r << 16;
- o1 |= p->to.reg << 12;
- break;
-
- case 5: /* bra s */
- o1 = opbra(p->as, p->scond);
- v = -8;
- if(p->to.sym != S && p->to.sym->type != 0) {
- rel = addrel(cursym);
- rel->off = pc - cursym->value;
- rel->siz = 4;
- rel->sym = p->to.sym;
- rel->add = o1 | ((v >> 2) & 0xffffff);
- rel->type = D_CALL;
- break;
- }
- if(p->cond != P)
- v = (p->cond->pc - pc) - 8;
- o1 |= (v >> 2) & 0xffffff;
- break;
-
- case 6: /* b ,O(R) -> add $O,R,PC */
- aclass(&p->to);
- o1 = oprrr(AADD, p->scond);
- o1 |= immrot(instoffset);
- o1 |= p->to.reg << 16;
- o1 |= REGPC << 12;
- break;
-
- case 7: /* bl (R) -> blx R */
- aclass(&p->to);
- if(instoffset != 0)
- diag("%P: doesn't support BL offset(REG) where offset != 0", p);
- o1 = oprrr(ABL, p->scond);
- o1 |= p->to.reg;
- break;
-
- case 8: /* sll $c,[R],R -> mov (R<<$c),R */
- aclass(&p->from);
- o1 = oprrr(p->as, p->scond);
- r = p->reg;
- if(r == NREG)
- r = p->to.reg;
- o1 |= r;
- o1 |= (instoffset&31) << 7;
- o1 |= p->to.reg << 12;
- break;
-
- case 9: /* sll R,[R],R -> mov (R<<R),R */
- o1 = oprrr(p->as, p->scond);
- r = p->reg;
- if(r == NREG)
- r = p->to.reg;
- o1 |= r;
- o1 |= (p->from.reg << 8) | (1<<4);
- o1 |= p->to.reg << 12;
- break;
-
- case 10: /* swi [$con] */
- o1 = oprrr(p->as, p->scond);
- if(p->to.type != D_NONE) {
- aclass(&p->to);
- o1 |= instoffset & 0xffffff;
- }
- break;
-
- case 11: /* word */
- aclass(&p->to);
- o1 = instoffset;
- if(p->to.sym != S) {
- rel = addrel(cursym);
- rel->off = pc - cursym->value;
- rel->siz = 4;
- rel->sym = p->to.sym;
- rel->add = p->to.offset;
- if(rel->sym == gmsym) {
- rel->type = D_TLS;
- if(flag_shared)
- rel->add += pc - p->pcrel->pc - 8 - rel->siz;
- rel->xadd = rel->add;
- rel->xsym = rel->sym;
- } else if(flag_shared) {
- rel->type = D_PCREL;
- rel->add += pc - p->pcrel->pc - 8;
- } else
- rel->type = D_ADDR;
- o1 = 0;
- }
- break;
-
- case 12: /* movw $lcon, reg */
- o1 = omvl(p, &p->from, p->to.reg);
- if(o->flag & LPCREL) {
- o2 = oprrr(AADD, p->scond) | p->to.reg | REGPC << 16 | p->to.reg << 12;
- }
- break;
-
- case 13: /* op $lcon, [R], R */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- o2 = oprrr(p->as, p->scond);
- o2 |= REGTMP;
- r = p->reg;
- if(p->as == AMOVW || p->as == AMVN)
- r = 0;
- else if(r == NREG)
- r = p->to.reg;
- o2 |= r << 16;
- if(p->to.type != D_NONE)
- o2 |= p->to.reg << 12;
- break;
-
- case 14: /* movb/movbu/movh/movhu R,R */
- o1 = oprrr(ASLL, p->scond);
-
- if(p->as == AMOVBU || p->as == AMOVHU)
- o2 = oprrr(ASRL, p->scond);
- else
- o2 = oprrr(ASRA, p->scond);
-
- r = p->to.reg;
- o1 |= (p->from.reg)|(r<<12);
- o2 |= (r)|(r<<12);
- if(p->as == AMOVB || p->as == AMOVBS || p->as == AMOVBU) {
- o1 |= (24<<7);
- o2 |= (24<<7);
- } else {
- o1 |= (16<<7);
- o2 |= (16<<7);
- }
- break;
-
- case 15: /* mul r,[r,]r */
- o1 = oprrr(p->as, p->scond);
- rf = p->from.reg;
- rt = p->to.reg;
- r = p->reg;
- if(r == NREG)
- r = rt;
- if(rt == r) {
- r = rf;
- rf = rt;
- }
- if(0)
- if(rt == r || rf == REGPC || r == REGPC || rt == REGPC) {
- diag("bad registers in MUL");
- prasm(p);
- }
- o1 |= (rf<<8) | r | (rt<<16);
- break;
-
-
- case 16: /* div r,[r,]r */
- o1 = 0xf << 28;
- o2 = 0;
- break;
-
- case 17:
- o1 = oprrr(p->as, p->scond);
- rf = p->from.reg;
- rt = p->to.reg;
- rt2 = p->to.offset;
- r = p->reg;
- o1 |= (rf<<8) | r | (rt<<16) | (rt2<<12);
- break;
-
- case 20: /* mov/movb/movbu R,O(R) */
- aclass(&p->to);
- r = p->to.reg;
- if(r == NREG)
- r = o->param;
- o1 = osr(p->as, p->from.reg, instoffset, r, p->scond);
- break;
-
- case 21: /* mov/movbu O(R),R -> lr */
- aclass(&p->from);
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o1 = olr(instoffset, r, p->to.reg, p->scond);
- if(p->as != AMOVW)
- o1 |= 1<<22;
- break;
-
- case 30: /* mov/movb/movbu R,L(R) */
- o1 = omvl(p, &p->to, REGTMP);
- if(!o1)
- break;
- r = p->to.reg;
- if(r == NREG)
- r = o->param;
- o2 = osrr(p->from.reg, REGTMP,r, p->scond);
- if(p->as != AMOVW)
- o2 |= 1<<22;
- break;
-
- case 31: /* mov/movbu L(R),R -> lr[b] */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o2 = olrr(REGTMP,r, p->to.reg, p->scond);
- if(p->as == AMOVBU || p->as == AMOVBS || p->as == AMOVB)
- o2 |= 1<<22;
- break;
-
- case 34: /* mov $lacon,R */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
-
- o2 = oprrr(AADD, p->scond);
- o2 |= REGTMP;
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o2 |= r << 16;
- if(p->to.type != D_NONE)
- o2 |= p->to.reg << 12;
- break;
-
- case 35: /* mov PSR,R */
- o1 = (2<<23) | (0xf<<16) | (0<<0);
- o1 |= (p->scond & C_SCOND) << 28;
- o1 |= (p->from.reg & 1) << 22;
- o1 |= p->to.reg << 12;
- break;
-
- case 36: /* mov R,PSR */
- o1 = (2<<23) | (0x29f<<12) | (0<<4);
- if(p->scond & C_FBIT)
- o1 ^= 0x010 << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- o1 |= (p->to.reg & 1) << 22;
- o1 |= p->from.reg << 0;
- break;
-
- case 37: /* mov $con,PSR */
- aclass(&p->from);
- o1 = (2<<23) | (0x29f<<12) | (0<<4);
- if(p->scond & C_FBIT)
- o1 ^= 0x010 << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- o1 |= immrot(instoffset);
- o1 |= (p->to.reg & 1) << 22;
- o1 |= p->from.reg << 0;
- break;
-
- case 38: /* movm $con,oreg -> stm */
- o1 = (0x4 << 25);
- o1 |= p->from.offset & 0xffff;
- o1 |= p->to.reg << 16;
- aclass(&p->to);
- goto movm;
-
- case 39: /* movm oreg,$con -> ldm */
- o1 = (0x4 << 25) | (1 << 20);
- o1 |= p->to.offset & 0xffff;
- o1 |= p->from.reg << 16;
- aclass(&p->from);
- movm:
- if(instoffset != 0)
- diag("offset must be zero in MOVM");
- o1 |= (p->scond & C_SCOND) << 28;
- if(p->scond & C_PBIT)
- o1 |= 1 << 24;
- if(p->scond & C_UBIT)
- o1 |= 1 << 23;
- if(p->scond & C_SBIT)
- o1 |= 1 << 22;
- if(p->scond & C_WBIT)
- o1 |= 1 << 21;
- break;
-
- case 40: /* swp oreg,reg,reg */
- aclass(&p->from);
- if(instoffset != 0)
- diag("offset must be zero in SWP");
- o1 = (0x2<<23) | (0x9<<4);
- if(p->as != ASWPW)
- o1 |= 1 << 22;
- o1 |= p->from.reg << 16;
- o1 |= p->reg << 0;
- o1 |= p->to.reg << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- break;
-
- case 41: /* rfe -> movm.s.w.u 0(r13),[r15] */
- o1 = 0xe8fd8000;
- break;
-
- case 50: /* floating point store */
- v = regoff(&p->to);
- r = p->to.reg;
- if(r == NREG)
- r = o->param;
- o1 = ofsr(p->as, p->from.reg, v, r, p->scond, p);
- break;
-
- case 51: /* floating point load */
- v = regoff(&p->from);
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o1 = ofsr(p->as, p->to.reg, v, r, p->scond, p) | (1<<20);
- break;
-
- case 52: /* floating point store, int32 offset UGLY */
- o1 = omvl(p, &p->to, REGTMP);
- if(!o1)
- break;
- r = p->to.reg;
- if(r == NREG)
- r = o->param;
- o2 = oprrr(AADD, p->scond) | (REGTMP << 12) | (REGTMP << 16) | r;
- o3 = ofsr(p->as, p->from.reg, 0, REGTMP, p->scond, p);
- break;
-
- case 53: /* floating point load, int32 offset UGLY */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o2 = oprrr(AADD, p->scond) | (REGTMP << 12) | (REGTMP << 16) | r;
- o3 = ofsr(p->as, p->to.reg, 0, REGTMP, p->scond, p) | (1<<20);
- break;
-
- case 54: /* floating point arith */
- o1 = oprrr(p->as, p->scond);
- rf = p->from.reg;
- rt = p->to.reg;
- r = p->reg;
- if(r == NREG) {
- r = rt;
- if(p->as == AMOVF || p->as == AMOVD || p->as == ASQRTF || p->as == ASQRTD || p->as == AABSF || p->as == AABSD)
- r = 0;
- }
- o1 |= rf | (r<<16) | (rt<<12);
- break;
-
- case 56: /* move to FP[CS]R */
- o1 = ((p->scond & C_SCOND) << 28) | (0xe << 24) | (1<<8) | (1<<4);
- o1 |= ((p->to.reg+1)<<21) | (p->from.reg << 12);
- break;
-
- case 57: /* move from FP[CS]R */
- o1 = ((p->scond & C_SCOND) << 28) | (0xe << 24) | (1<<8) | (1<<4);
- o1 |= ((p->from.reg+1)<<21) | (p->to.reg<<12) | (1<<20);
- break;
- case 58: /* movbu R,R */
- o1 = oprrr(AAND, p->scond);
- o1 |= immrot(0xff);
- rt = p->to.reg;
- r = p->from.reg;
- if(p->to.type == D_NONE)
- rt = 0;
- if(r == NREG)
- r = rt;
- o1 |= (r<<16) | (rt<<12);
- break;
-
- case 59: /* movw/bu R<<I(R),R -> ldr indexed */
- if(p->from.reg == NREG) {
- if(p->as != AMOVW)
- diag("byte MOV from shifter operand");
- goto mov;
- }
- if(p->from.offset&(1<<4))
- diag("bad shift in LDR");
- o1 = olrr(p->from.offset, p->from.reg, p->to.reg, p->scond);
- if(p->as == AMOVBU)
- o1 |= 1<<22;
- break;
-
- case 60: /* movb R(R),R -> ldrsb indexed */
- if(p->from.reg == NREG) {
- diag("byte MOV from shifter operand");
- goto mov;
- }
- if(p->from.offset&(~0xf))
- diag("bad shift in LDRSB");
- o1 = olhrr(p->from.offset, p->from.reg, p->to.reg, p->scond);
- o1 ^= (1<<5)|(1<<6);
- break;
-
- case 61: /* movw/b/bu R,R<<[IR](R) -> str indexed */
- if(p->to.reg == NREG)
- diag("MOV to shifter operand");
- o1 = osrr(p->from.reg, p->to.offset, p->to.reg, p->scond);
- if(p->as == AMOVB || p->as == AMOVBS || p->as == AMOVBU)
- o1 |= 1<<22;
- break;
-
- case 62: /* case R -> movw R<<2(PC),PC */
- if(o->flag & LPCREL) {
- o1 = oprrr(AADD, p->scond) | immrot(1) | p->from.reg << 16 | REGTMP << 12;
- o2 = olrr(REGTMP, REGPC, REGTMP, p->scond);
- o2 |= 2<<7;
- o3 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGPC << 12;
- } else {
- o1 = olrr(p->from.reg, REGPC, REGPC, p->scond);
- o1 |= 2<<7;
- }
- break;
-
- case 63: /* bcase */
- if(p->cond != P) {
- rel = addrel(cursym);
- rel->off = pc - cursym->value;
- rel->siz = 4;
- if(p->to.sym != S && p->to.sym->type != 0) {
- rel->sym = p->to.sym;
- rel->add = p->to.offset;
- } else {
- rel->sym = cursym;
- rel->add = p->cond->pc - cursym->value;
- }
- if(o->flag & LPCREL) {
- rel->type = D_PCREL;
- rel->add += pc - p->pcrel->pc - 16 + rel->siz;
- } else
- rel->type = D_ADDR;
- o1 = 0;
- }
- break;
-
- /* reloc ops */
- case 64: /* mov/movb/movbu R,addr */
- o1 = omvl(p, &p->to, REGTMP);
- if(!o1)
- break;
- o2 = osr(p->as, p->from.reg, 0, REGTMP, p->scond);
- if(o->flag & LPCREL) {
- o3 = o2;
- o2 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGTMP << 12;
- }
- break;
-
- case 65: /* mov/movbu addr,R */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- o2 = olr(0, REGTMP, p->to.reg, p->scond);
- if(p->as == AMOVBU || p->as == AMOVBS || p->as == AMOVB)
- o2 |= 1<<22;
- if(o->flag & LPCREL) {
- o3 = o2;
- o2 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGTMP << 12;
- }
- break;
-
- case 68: /* floating point store -> ADDR */
- o1 = omvl(p, &p->to, REGTMP);
- if(!o1)
- break;
- o2 = ofsr(p->as, p->from.reg, 0, REGTMP, p->scond, p);
- if(o->flag & LPCREL) {
- o3 = o2;
- o2 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGTMP << 12;
- }
- break;
-
- case 69: /* floating point load <- ADDR */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- o2 = ofsr(p->as, p->to.reg, 0, REGTMP, p->scond, p) | (1<<20);
- if(o->flag & LPCREL) {
- o3 = o2;
- o2 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGTMP << 12;
- }
- break;
-
- /* ArmV4 ops: */
- case 70: /* movh/movhu R,O(R) -> strh */
- aclass(&p->to);
- r = p->to.reg;
- if(r == NREG)
- r = o->param;
- o1 = oshr(p->from.reg, instoffset, r, p->scond);
- break;
- case 71: /* movb/movh/movhu O(R),R -> ldrsb/ldrsh/ldrh */
- aclass(&p->from);
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o1 = olhr(instoffset, r, p->to.reg, p->scond);
- if(p->as == AMOVB || p->as == AMOVBS)
- o1 ^= (1<<5)|(1<<6);
- else if(p->as == AMOVH || p->as == AMOVHS)
- o1 ^= (1<<6);
- break;
- case 72: /* movh/movhu R,L(R) -> strh */
- o1 = omvl(p, &p->to, REGTMP);
- if(!o1)
- break;
- r = p->to.reg;
- if(r == NREG)
- r = o->param;
- o2 = oshrr(p->from.reg, REGTMP,r, p->scond);
- break;
- case 73: /* movb/movh/movhu L(R),R -> ldrsb/ldrsh/ldrh */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- r = p->from.reg;
- if(r == NREG)
- r = o->param;
- o2 = olhrr(REGTMP, r, p->to.reg, p->scond);
- if(p->as == AMOVB || p->as == AMOVBS)
- o2 ^= (1<<5)|(1<<6);
- else if(p->as == AMOVH || p->as == AMOVHS)
- o2 ^= (1<<6);
- break;
- case 74: /* bx $I */
- diag("ABX $I");
- break;
- case 75: /* bx O(R) */
- aclass(&p->to);
- if(instoffset != 0)
- diag("non-zero offset in ABX");
-/*
- o1 = oprrr(AADD, p->scond) | immrot(0) | (REGPC<<16) | (REGLINK<<12); // mov PC, LR
- o2 = ((p->scond&C_SCOND)<<28) | (0x12fff<<8) | (1<<4) | p->to.reg; // BX R
-*/
- // p->to.reg may be REGLINK
- o1 = oprrr(AADD, p->scond);
- o1 |= immrot(instoffset);
- o1 |= p->to.reg << 16;
- o1 |= REGTMP << 12;
- o2 = oprrr(AADD, p->scond) | immrot(0) | (REGPC<<16) | (REGLINK<<12); // mov PC, LR
- o3 = ((p->scond&C_SCOND)<<28) | (0x12fff<<8) | (1<<4) | REGTMP; // BX Rtmp
- break;
- case 76: /* bx O(R) when returning from fn*/
- diag("ABXRET");
- break;
- case 77: /* ldrex oreg,reg */
- aclass(&p->from);
- if(instoffset != 0)
- diag("offset must be zero in LDREX");
- o1 = (0x19<<20) | (0xf9f);
- o1 |= p->from.reg << 16;
- o1 |= p->to.reg << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- break;
- case 78: /* strex reg,oreg,reg */
- aclass(&p->from);
- if(instoffset != 0)
- diag("offset must be zero in STREX");
- o1 = (0x18<<20) | (0xf90);
- o1 |= p->from.reg << 16;
- o1 |= p->reg << 0;
- o1 |= p->to.reg << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- break;
- case 80: /* fmov zfcon,freg */
- if(p->as == AMOVD) {
- o1 = 0xeeb00b00; // VMOV imm 64
- o2 = oprrr(ASUBD, p->scond);
- } else {
- o1 = 0x0eb00a00; // VMOV imm 32
- o2 = oprrr(ASUBF, p->scond);
- }
- v = 0x70; // 1.0
- r = p->to.reg;
-
- // movf $1.0, r
- o1 |= (p->scond & C_SCOND) << 28;
- o1 |= r << 12;
- o1 |= (v&0xf) << 0;
- o1 |= (v&0xf0) << 12;
-
- // subf r,r,r
- o2 |= r | (r<<16) | (r<<12);
- break;
- case 81: /* fmov sfcon,freg */
- o1 = 0x0eb00a00; // VMOV imm 32
- if(p->as == AMOVD)
- o1 = 0xeeb00b00; // VMOV imm 64
- o1 |= (p->scond & C_SCOND) << 28;
- o1 |= p->to.reg << 12;
- v = chipfloat(&p->from.ieee);
- o1 |= (v&0xf) << 0;
- o1 |= (v&0xf0) << 12;
- break;
- case 82: /* fcmp freg,freg, */
- o1 = oprrr(p->as, p->scond);
- o1 |= (p->reg<<12) | (p->from.reg<<0);
- o2 = 0x0ef1fa10; // VMRS R15
- o2 |= (p->scond & C_SCOND) << 28;
- break;
- case 83: /* fcmp freg,, */
- o1 = oprrr(p->as, p->scond);
- o1 |= (p->from.reg<<12) | (1<<16);
- o2 = 0x0ef1fa10; // VMRS R15
- o2 |= (p->scond & C_SCOND) << 28;
- break;
- case 84: /* movfw freg,freg - truncate float-to-fix */
- o1 = oprrr(p->as, p->scond);
- o1 |= (p->from.reg<<0);
- o1 |= (p->to.reg<<12);
- break;
- case 85: /* movwf freg,freg - fix-to-float */
- o1 = oprrr(p->as, p->scond);
- o1 |= (p->from.reg<<0);
- o1 |= (p->to.reg<<12);
- break;
- case 86: /* movfw freg,reg - truncate float-to-fix */
- // macro for movfw freg,FTMP; movw FTMP,reg
- o1 = oprrr(p->as, p->scond);
- o1 |= (p->from.reg<<0);
- o1 |= (FREGTMP<<12);
- o2 = oprrr(AMOVFW+AEND, p->scond);
- o2 |= (FREGTMP<<16);
- o2 |= (p->to.reg<<12);
- break;
- case 87: /* movwf reg,freg - fix-to-float */
- // macro for movw reg,FTMP; movwf FTMP,freg
- o1 = oprrr(AMOVWF+AEND, p->scond);
- o1 |= (p->from.reg<<12);
- o1 |= (FREGTMP<<16);
- o2 = oprrr(p->as, p->scond);
- o2 |= (FREGTMP<<0);
- o2 |= (p->to.reg<<12);
- break;
- case 88: /* movw reg,freg */
- o1 = oprrr(AMOVWF+AEND, p->scond);
- o1 |= (p->from.reg<<12);
- o1 |= (p->to.reg<<16);
- break;
- case 89: /* movw freg,reg */
- o1 = oprrr(AMOVFW+AEND, p->scond);
- o1 |= (p->from.reg<<16);
- o1 |= (p->to.reg<<12);
- break;
- case 90: /* tst reg */
- o1 = oprrr(ACMP+AEND, p->scond);
- o1 |= p->from.reg<<16;
- break;
- case 91: /* ldrexd oreg,reg */
- aclass(&p->from);
- if(instoffset != 0)
- diag("offset must be zero in LDREX");
- o1 = (0x1b<<20) | (0xf9f);
- o1 |= p->from.reg << 16;
- o1 |= p->to.reg << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- break;
- case 92: /* strexd reg,oreg,reg */
- aclass(&p->from);
- if(instoffset != 0)
- diag("offset must be zero in STREX");
- o1 = (0x1a<<20) | (0xf90);
- o1 |= p->from.reg << 16;
- o1 |= p->reg << 0;
- o1 |= p->to.reg << 12;
- o1 |= (p->scond & C_SCOND) << 28;
- break;
- case 93: /* movb/movh/movhu addr,R -> ldrsb/ldrsh/ldrh */
- o1 = omvl(p, &p->from, REGTMP);
- if(!o1)
- break;
- o2 = olhr(0, REGTMP, p->to.reg, p->scond);
- if(p->as == AMOVB || p->as == AMOVBS)
- o2 ^= (1<<5)|(1<<6);
- else if(p->as == AMOVH || p->as == AMOVHS)
- o2 ^= (1<<6);
- if(o->flag & LPCREL) {
- o3 = o2;
- o2 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGTMP << 12;
- }
- break;
- case 94: /* movh/movhu R,addr -> strh */
- o1 = omvl(p, &p->to, REGTMP);
- if(!o1)
- break;
- o2 = oshr(p->from.reg, 0, REGTMP, p->scond);
- if(o->flag & LPCREL) {
- o3 = o2;
- o2 = oprrr(AADD, p->scond) | REGTMP | REGPC << 16 | REGTMP << 12;
- }
- break;
- case 95: /* PLD off(reg) */
- o1 = 0xf5d0f000;
- o1 |= p->from.reg << 16;
- if(p->from.offset < 0) {
- o1 &= ~(1 << 23);
- o1 |= (-p->from.offset) & 0xfff;
- } else
- o1 |= p->from.offset & 0xfff;
- break;
- case 96: /* UNDEF */
- // This is supposed to be something that stops execution.
- // It's not supposed to be reached, ever, but if it is, we'd
- // like to be able to tell how we got there. Assemble as
- // 0xf7fabcfd which is guranteed to raise undefined instruction
- // exception.
- o1 = 0xf7fabcfd;
- break;
- case 97: /* CLZ Rm, Rd */
- o1 = oprrr(p->as, p->scond);
- o1 |= p->to.reg << 12;
- o1 |= p->from.reg;
- break;
- case 98: /* MULW{T,B} Rs, Rm, Rd */
- o1 = oprrr(p->as, p->scond);
- o1 |= p->to.reg << 16;
- o1 |= p->from.reg << 8;
- o1 |= p->reg;
- break;
- case 99: /* MULAW{T,B} Rs, Rm, Rn, Rd */
- o1 = oprrr(p->as, p->scond);
- o1 |= p->to.reg << 12;
- o1 |= p->from.reg << 8;
- o1 |= p->reg;
- o1 |= p->to.offset << 16;
- break;
- }
-
- out[0] = o1;
- out[1] = o2;
- out[2] = o3;
- out[3] = o4;
- out[4] = o5;
- out[5] = o6;
- return;
-
-#ifdef NOTDEF
- v = p->pc;
- switch(o->size) {
- default:
- if(debug['a'])
- Bprint(&bso, " %.8ux:\t\t%P\n", v, p);
- break;
- case 4:
- if(debug['a'])
- Bprint(&bso, " %.8ux: %.8ux\t%P\n", v, o1, p);
- lputl(o1);
- break;
- case 8:
- if(debug['a'])
- Bprint(&bso, " %.8ux: %.8ux %.8ux%P\n", v, o1, o2, p);
- lputl(o1);
- lputl(o2);
- break;
- case 12:
- if(debug['a'])
- Bprint(&bso, " %.8ux: %.8ux %.8ux %.8ux%P\n", v, o1, o2, o3, p);
- lputl(o1);
- lputl(o2);
- lputl(o3);
- break;
- case 16:
- if(debug['a'])
- Bprint(&bso, " %.8ux: %.8ux %.8ux %.8ux %.8ux%P\n",
- v, o1, o2, o3, o4, p);
- lputl(o1);
- lputl(o2);
- lputl(o3);
- lputl(o4);
- break;
- case 20:
- if(debug['a'])
- Bprint(&bso, " %.8ux: %.8ux %.8ux %.8ux %.8ux %.8ux%P\n",
- v, o1, o2, o3, o4, o5, p);
- lputl(o1);
- lputl(o2);
- lputl(o3);
- lputl(o4);
- lputl(o5);
- break;
- case 24:
- if(debug['a'])
- Bprint(&bso, " %.8ux: %.8ux %.8ux %.8ux %.8ux %.8ux %.8ux%P\n",
- v, o1, o2, o3, o4, o5, o6, p);
- lputl(o1);
- lputl(o2);
- lputl(o3);
- lputl(o4);
- lputl(o5);
- lputl(o6);
- break;
- }
-#endif
-}
-
-int32
-oprrr(int a, int sc)
-{
- int32 o;
-
- o = (sc & C_SCOND) << 28;
- if(sc & C_SBIT)
- o |= 1 << 20;
- if(sc & (C_PBIT|C_WBIT))
- diag(".P/.W on dp instruction");
- switch(a) {
- case AMULU:
- case AMUL: return o | (0x0<<21) | (0x9<<4);
- case AMULA: return o | (0x1<<21) | (0x9<<4);
- case AMULLU: return o | (0x4<<21) | (0x9<<4);
- case AMULL: return o | (0x6<<21) | (0x9<<4);
- case AMULALU: return o | (0x5<<21) | (0x9<<4);
- case AMULAL: return o | (0x7<<21) | (0x9<<4);
- case AAND: return o | (0x0<<21);
- case AEOR: return o | (0x1<<21);
- case ASUB: return o | (0x2<<21);
- case ARSB: return o | (0x3<<21);
- case AADD: return o | (0x4<<21);
- case AADC: return o | (0x5<<21);
- case ASBC: return o | (0x6<<21);
- case ARSC: return o | (0x7<<21);
- case ATST: return o | (0x8<<21) | (1<<20);
- case ATEQ: return o | (0x9<<21) | (1<<20);
- case ACMP: return o | (0xa<<21) | (1<<20);
- case ACMN: return o | (0xb<<21) | (1<<20);
- case AORR: return o | (0xc<<21);
- case AMOVB:
- case AMOVH:
- case AMOVW: return o | (0xd<<21);
- case ABIC: return o | (0xe<<21);
- case AMVN: return o | (0xf<<21);
- case ASLL: return o | (0xd<<21) | (0<<5);
- case ASRL: return o | (0xd<<21) | (1<<5);
- case ASRA: return o | (0xd<<21) | (2<<5);
- case ASWI: return o | (0xf<<24);
-
- case AADDD: return o | (0xe<<24) | (0x3<<20) | (0xb<<8) | (0<<4);
- case AADDF: return o | (0xe<<24) | (0x3<<20) | (0xa<<8) | (0<<4);
- case ASUBD: return o | (0xe<<24) | (0x3<<20) | (0xb<<8) | (4<<4);
- case ASUBF: return o | (0xe<<24) | (0x3<<20) | (0xa<<8) | (4<<4);
- case AMULD: return o | (0xe<<24) | (0x2<<20) | (0xb<<8) | (0<<4);
- case AMULF: return o | (0xe<<24) | (0x2<<20) | (0xa<<8) | (0<<4);
- case ADIVD: return o | (0xe<<24) | (0x8<<20) | (0xb<<8) | (0<<4);
- case ADIVF: return o | (0xe<<24) | (0x8<<20) | (0xa<<8) | (0<<4);
- case ASQRTD: return o | (0xe<<24) | (0xb<<20) | (1<<16) | (0xb<<8) | (0xc<<4);
- case ASQRTF: return o | (0xe<<24) | (0xb<<20) | (1<<16) | (0xa<<8) | (0xc<<4);
- case AABSD: return o | (0xe<<24) | (0xb<<20) | (0<<16) | (0xb<<8) | (0xc<<4);
- case AABSF: return o | (0xe<<24) | (0xb<<20) | (0<<16) | (0xa<<8) | (0xc<<4);
- case ACMPD: return o | (0xe<<24) | (0xb<<20) | (4<<16) | (0xb<<8) | (0xc<<4);
- case ACMPF: return o | (0xe<<24) | (0xb<<20) | (4<<16) | (0xa<<8) | (0xc<<4);
-
- case AMOVF: return o | (0xe<<24) | (0xb<<20) | (0<<16) | (0xa<<8) | (4<<4);
- case AMOVD: return o | (0xe<<24) | (0xb<<20) | (0<<16) | (0xb<<8) | (4<<4);
-
- case AMOVDF: return o | (0xe<<24) | (0xb<<20) | (7<<16) | (0xa<<8) | (0xc<<4) |
- (1<<8); // dtof
- case AMOVFD: return o | (0xe<<24) | (0xb<<20) | (7<<16) | (0xa<<8) | (0xc<<4) |
- (0<<8); // dtof
-
- case AMOVWF:
- if((sc & C_UBIT) == 0)
- o |= 1<<7; /* signed */
- return o | (0xe<<24) | (0xb<<20) | (8<<16) | (0xa<<8) | (4<<4) |
- (0<<18) | (0<<8); // toint, double
- case AMOVWD:
- if((sc & C_UBIT) == 0)
- o |= 1<<7; /* signed */
- return o | (0xe<<24) | (0xb<<20) | (8<<16) | (0xa<<8) | (4<<4) |
- (0<<18) | (1<<8); // toint, double
-
- case AMOVFW:
- if((sc & C_UBIT) == 0)
- o |= 1<<16; /* signed */
- return o | (0xe<<24) | (0xb<<20) | (8<<16) | (0xa<<8) | (4<<4) |
- (1<<18) | (0<<8) | (1<<7); // toint, double, trunc
- case AMOVDW:
- if((sc & C_UBIT) == 0)
- o |= 1<<16; /* signed */
- return o | (0xe<<24) | (0xb<<20) | (8<<16) | (0xa<<8) | (4<<4) |
- (1<<18) | (1<<8) | (1<<7); // toint, double, trunc
-
- case AMOVWF+AEND: // copy WtoF
- return o | (0xe<<24) | (0x0<<20) | (0xb<<8) | (1<<4);
- case AMOVFW+AEND: // copy FtoW
- return o | (0xe<<24) | (0x1<<20) | (0xb<<8) | (1<<4);
- case ACMP+AEND: // cmp imm
- return o | (0x3<<24) | (0x5<<20);
-
- case ACLZ:
- // CLZ doesn't support .S
- return (o & (0xf<<28)) | (0x16f<<16) | (0xf1<<4);
-
- case AMULWT:
- return (o & (0xf<<28)) | (0x12 << 20) | (0xe<<4);
- case AMULWB:
- return (o & (0xf<<28)) | (0x12 << 20) | (0xa<<4);
- case AMULAWT:
- return (o & (0xf<<28)) | (0x12 << 20) | (0xc<<4);
- case AMULAWB:
- return (o & (0xf<<28)) | (0x12 << 20) | (0x8<<4);
-
- case ABL: // BLX REG
- return (o & (0xf<<28)) | (0x12fff3 << 4);
- }
- diag("bad rrr %d", a);
- prasm(curp);
- return 0;
-}
-
-int32
-opbra(int a, int sc)
-{
-
- if(sc & (C_SBIT|C_PBIT|C_WBIT))
- diag(".S/.P/.W on bra instruction");
- sc &= C_SCOND;
- if(a == ABL)
- return (sc<<28)|(0x5<<25)|(0x1<<24);
- if(sc != 0xe)
- diag(".COND on bcond instruction");
- switch(a) {
- case ABEQ: return (0x0<<28)|(0x5<<25);
- case ABNE: return (0x1<<28)|(0x5<<25);
- case ABCS: return (0x2<<28)|(0x5<<25);
- case ABHS: return (0x2<<28)|(0x5<<25);
- case ABCC: return (0x3<<28)|(0x5<<25);
- case ABLO: return (0x3<<28)|(0x5<<25);
- case ABMI: return (0x4<<28)|(0x5<<25);
- case ABPL: return (0x5<<28)|(0x5<<25);
- case ABVS: return (0x6<<28)|(0x5<<25);
- case ABVC: return (0x7<<28)|(0x5<<25);
- case ABHI: return (0x8<<28)|(0x5<<25);
- case ABLS: return (0x9<<28)|(0x5<<25);
- case ABGE: return (0xa<<28)|(0x5<<25);
- case ABLT: return (0xb<<28)|(0x5<<25);
- case ABGT: return (0xc<<28)|(0x5<<25);
- case ABLE: return (0xd<<28)|(0x5<<25);
- case AB: return (0xe<<28)|(0x5<<25);
- }
- diag("bad bra %A", a);
- prasm(curp);
- return 0;
-}
-
int32
-olr(int32 v, int b, int r, int sc)
-{
- int32 o;
-
- if(sc & C_SBIT)
- diag(".S on LDR/STR instruction");
- o = (sc & C_SCOND) << 28;
- if(!(sc & C_PBIT))
- o |= 1 << 24;
- if(!(sc & C_UBIT))
- o |= 1 << 23;
- if(sc & C_WBIT)
- o |= 1 << 21;
- o |= (1<<26) | (1<<20);
- if(v < 0) {
- if(sc & C_UBIT) diag(".U on neg offset");
- v = -v;
- o ^= 1 << 23;
- }
- if(v >= (1<<12) || v < 0)
- diag("literal span too large: %d (R%d)\n%P", v, b, PP);
- o |= v;
- o |= b << 16;
- o |= r << 12;
- return o;
-}
-
-int32
-olhr(int32 v, int b, int r, int sc)
-{
- int32 o;
-
- if(sc & C_SBIT)
- diag(".S on LDRH/STRH instruction");
- o = (sc & C_SCOND) << 28;
- if(!(sc & C_PBIT))
- o |= 1 << 24;
- if(sc & C_WBIT)
- o |= 1 << 21;
- o |= (1<<23) | (1<<20)|(0xb<<4);
- if(v < 0) {
- v = -v;
- o ^= 1 << 23;
- }
- if(v >= (1<<8) || v < 0)
- diag("literal span too large: %d (R%d)\n%P", v, b, PP);
- o |= (v&0xf)|((v>>4)<<8)|(1<<22);
- o |= b << 16;
- o |= r << 12;
- return o;
-}
-
-int32
-osr(int a, int r, int32 v, int b, int sc)
-{
- int32 o;
-
- o = olr(v, b, r, sc) ^ (1<<20);
- if(a != AMOVW)
- o |= 1<<22;
- return o;
-}
-
-int32
-oshr(int r, int32 v, int b, int sc)
-{
- int32 o;
-
- o = olhr(v, b, r, sc) ^ (1<<20);
- return o;
-}
-
-
-int32
-osrr(int r, int i, int b, int sc)
-{
-
- return olr(i, b, r, sc) ^ ((1<<25) | (1<<20));
-}
-
-int32
-oshrr(int r, int i, int b, int sc)
-{
- return olhr(i, b, r, sc) ^ ((1<<22) | (1<<20));
-}
-
-int32
-olrr(int i, int b, int r, int sc)
-{
-
- return olr(i, b, r, sc) ^ (1<<25);
-}
-
-int32
-olhrr(int i, int b, int r, int sc)
-{
- return olhr(i, b, r, sc) ^ (1<<22);
-}
-
-int32
-ofsr(int a, int r, int32 v, int b, int sc, Prog *p)
-{
- int32 o;
-
- if(sc & C_SBIT)
- diag(".S on FLDR/FSTR instruction");
- o = (sc & C_SCOND) << 28;
- if(!(sc & C_PBIT))
- o |= 1 << 24;
- if(sc & C_WBIT)
- o |= 1 << 21;
- o |= (6<<25) | (1<<24) | (1<<23) | (10<<8);
- if(v < 0) {
- v = -v;
- o ^= 1 << 23;
- }
- if(v & 3)
- diag("odd offset for floating point op: %d\n%P", v, p);
- else
- if(v >= (1<<10) || v < 0)
- diag("literal span too large: %d\n%P", v, p);
- o |= (v>>2) & 0xFF;
- o |= b << 16;
- o |= r << 12;
-
- switch(a) {
- default:
- diag("bad fst %A", a);
- case AMOVD:
- o |= 1 << 8;
- case AMOVF:
- break;
- }
- return o;
-}
-
-int32
-omvl(Prog *p, Adr *a, int dr)
-{
- int32 v, o1;
- if(!p->cond) {
- aclass(a);
- v = immrot(~instoffset);
- if(v == 0) {
- diag("missing literal");
- prasm(p);
- return 0;
- }
- o1 = oprrr(AMVN, p->scond&C_SCOND);
- o1 |= v;
- o1 |= dr << 12;
- } else {
- v = p->cond->pc - p->pc - 8;
- o1 = olr(v, REGPC, dr, p->scond&C_SCOND);
- }
- return o1;
-}
-
-int
-chipzero(Ieee *e)
-{
- // We use GOARM=7 to gate the use of VFPv3 vmov (imm) instructions.
- if(goarm < 7 || e->l != 0 || e->h != 0)
- return -1;
- return 0;
-}
-
-int
-chipfloat(Ieee *e)
-{
- int n;
- ulong h;
-
- // We use GOARM=7 to gate the use of VFPv3 vmov (imm) instructions.
- if(goarm < 7)
- goto no;
-
- if(e->l != 0 || (e->h&0xffff) != 0)
- goto no;
- h = e->h & 0x7fc00000;
- if(h != 0x40000000 && h != 0x3fc00000)
- goto no;
- n = 0;
-
- // sign bit (a)
- if(e->h & 0x80000000)
- n |= 1<<7;
-
- // exp sign bit (b)
- if(h == 0x3fc00000)
- n |= 1<<6;
-
- // rest of exp and mantissa (cd-efgh)
- n |= (e->h >> 16) & 0x3f;
-
-//print("match %.8lux %.8lux %d\n", e->l, e->h, n);
- return n;
-
-no:
- return -1;
+rnd(int32 v, int32 r)
+{
+ int32 c;
+
+ if(r <= 0)
+ return v;
+ v += r - 1;
+ c = v % r;
+ if(c < 0)
+ c += r;
+ v -= c;
+ return v;
}
diff --git a/src/cmd/5l/l.h b/src/cmd/5l/l.h
index ae4b05ba1..761bc861a 100644
--- a/src/cmd/5l/l.h
+++ b/src/cmd/5l/l.h
@@ -31,6 +31,7 @@
#include <u.h>
#include <libc.h>
#include <bio.h>
+#include <link.h>
#include "5.out.h"
enum
@@ -38,6 +39,7 @@ enum
thechar = '5',
PtrSize = 4,
IntSize = 4,
+ RegSize = 4,
MaxAlign = 8, // max data alignment
FuncAlign = 4 // single-instruction alignment
};
@@ -51,167 +53,13 @@ enum
#define dynptrsize 0
-typedef struct Adr Adr;
-typedef struct Sym Sym;
-typedef struct Autom Auto;
-typedef struct Prog Prog;
-typedef struct Reloc Reloc;
-typedef struct Optab Optab;
-typedef struct Oprang Oprang;
-typedef uchar Opcross[32][2][32];
-typedef struct Count Count;
-
#define P ((Prog*)0)
-#define S ((Sym*)0)
-#define TNAME (cursym?cursym->name:noname)
-
-struct Adr
-{
- union
- {
- struct {
- int32 u0offset;
- int32 u0offset2; // argsize
- } u0off;
- char* u0sval;
- Ieee u0ieee;
- char* u0sbig;
- } u0;
- Sym* sym;
- Sym* gotype;
- char type;
- char reg;
- char name;
- char class;
-};
-
-#define offset u0.u0off.u0offset
-#define offset2 u0.u0off.u0offset2
-#define sval u0.u0sval
-#define scon sval
-#define ieee u0.u0ieee
-#define sbig u0.u0sbig
-
-struct Reloc
-{
- int32 off;
- uchar siz;
- uchar done;
- int16 type;
- int32 add;
- int32 xadd;
- Sym* sym;
- Sym* xsym;
-};
-
-struct Prog
-{
- Adr from;
- Adr to;
- union
- {
- int32 u0regused;
- Prog* u0forwd;
- } u0;
- Prog* cond;
- Prog* link;
- Prog* pcrel;
- int32 pc;
- int32 line;
- int32 spadj;
- uchar mark;
- uchar optab;
- uchar as;
- uchar scond;
- uchar reg;
- uchar align; // unused
-};
-
-#define regused u0.u0regused
-#define forwd u0.u0forwd
-#define datasize reg
-#define textflag reg
-
-#define iscall(p) ((p)->as == ABL)
-
-struct Sym
-{
- char* name;
- char* extname; // name used in external object files
- short type;
- short version;
- uchar dupok;
- uchar reachable;
- uchar cgoexport;
- uchar leaf;
- int32 dynid;
- int32 plt;
- int32 got;
- int32 value;
- int32 sig;
- int32 size;
- int32 align; // if non-zero, required alignment in bytes
- int32 elfsym;
- int32 locals; // size of stack frame locals area
- int32 args; // size of stack frame incoming arguments area
- uchar special;
- uchar fnptr; // used as fn ptr
- uchar stkcheck;
- uchar hide;
- Sym* hash; // in hash table
- Sym* allsym; // in all symbol list
- Sym* next; // in text or data list
- Sym* sub; // in SSUB list
- Sym* outer; // container of sub
- Sym* gotype;
- Sym* reachparent;
- Sym* queue;
- char* file;
- char* dynimplib;
- char* dynimpvers;
- struct Section* sect;
- struct Hist* hist;
-
- // STEXT
- Auto* autom;
- Prog* text;
-
- // SDATA, SBSS
- uchar* p;
- int32 np;
- int32 maxp;
- Reloc* r;
- int32 nr;
- int32 maxr;
-};
+#define S ((LSym*)0)
+#define TNAME (ctxt->cursym?ctxt->cursym->name:noname)
#define SIGNINTERN (1729*325*1729)
-struct Autom
-{
- Sym* asym;
- Auto* link;
- int32 aoffset;
- short type;
- Sym* gotype;
-};
-struct Optab
-{
- char as;
- uchar a1;
- char a2;
- uchar a3;
- uchar type;
- char size;
- char param;
- char flag;
- uchar pcrelsiz;
-};
-struct Oprang
-{
- Optab* start;
- Optab* stop;
-};
+typedef struct Count Count;
struct Count
{
int32 count;
@@ -220,10 +68,17 @@ struct Count
enum
{
- LFROM = 1<<0,
- LTO = 1<<1,
- LPOOL = 1<<2,
- LPCREL = 1<<3,
+/* mark flags */
+ FOLL = 1<<0,
+ LABEL = 1<<1,
+ LEAF = 1<<2,
+
+ STRINGSZ = 200,
+ MINSIZ = 64,
+ NENT = 100,
+ MAXIO = 8192,
+ MAXHIST = 40, /* limit of path elements for history symbols */
+ MINLC = 4,
C_NONE = 0,
C_REG,
@@ -260,7 +115,7 @@ enum
C_HFOREG,
C_SOREG,
C_ROREG,
- C_SROREG, /* both S and R */
+ C_SROREG, /* both nil and R */
C_LOREG,
C_PC,
@@ -270,179 +125,45 @@ enum
C_ADDR, /* reference to relocatable address */
C_GOK,
-
-/* mark flags */
- FOLL = 1<<0,
- LABEL = 1<<1,
- LEAF = 1<<2,
-
- STRINGSZ = 200,
- MINSIZ = 64,
- NENT = 100,
- MAXIO = 8192,
- MAXHIST = 40, /* limit of path elements for history symbols */
- MINLC = 4,
};
#ifndef COFFCVT
-EXTERN int32 HEADR; /* length of header */
-EXTERN int HEADTYPE; /* type of header */
-EXTERN int32 INITDAT; /* data location */
-EXTERN int32 INITRND; /* data round above text location */
-EXTERN int32 INITTEXT; /* text location */
-EXTERN char* INITENTRY; /* entry point */
EXTERN int32 autosize;
-EXTERN Auto* curauto;
-EXTERN Auto* curhist;
-EXTERN Prog* curp;
-EXTERN Sym* cursym;
-EXTERN Sym* datap;
+EXTERN LSym* datap;
EXTERN int debug[128];
-EXTERN Sym* etextp;
EXTERN char* noname;
EXTERN Prog* lastp;
EXTERN int32 lcsize;
EXTERN char literal[32];
EXTERN int nerrors;
EXTERN int32 instoffset;
-EXTERN Opcross opcross[8];
-EXTERN Oprang oprange[ALAST];
-EXTERN char* outfile;
-EXTERN int32 pc;
-EXTERN uchar repop[ALAST];
-EXTERN char* interpreter;
EXTERN char* rpath;
EXTERN uint32 stroffset;
EXTERN int32 symsize;
-EXTERN Sym* textp;
-EXTERN char xcmp[C_GOK+1][C_GOK+1];
-EXTERN Prog zprg;
-EXTERN int dtype;
-EXTERN int tlsoffset;
EXTERN int armsize;
-EXTERN int goarm;
-EXTERN Sym* adrgotype; // type symbol on last Adr read
-EXTERN Sym* fromgotype; // type symbol on last p->from read
-
-extern char* anames[];
-extern Optab optab[];
-
-void addpool(Prog*, Adr*);
-EXTERN Prog* blitrl;
-EXTERN Prog* elitrl;
-EXTERN int goarm;
+#pragma varargck type "I" uint32*
-void initdiv(void);
-EXTERN Prog* prog_div;
-EXTERN Prog* prog_divu;
-EXTERN Prog* prog_mod;
-EXTERN Prog* prog_modu;
-
-#pragma varargck type "A" int
-#pragma varargck type "C" int
-#pragma varargck type "D" Adr*
-#pragma varargck type "I" uchar*
-#pragma varargck type "N" Adr*
-#pragma varargck type "P" Prog*
-#pragma varargck type "S" char*
-#pragma varargck type "Z" char*
-#pragma varargck type "i" char*
-
-int Aconv(Fmt*);
-int Cconv(Fmt*);
-int Dconv(Fmt*);
-int Iconv(Fmt*);
-int Nconv(Fmt*);
-int Oconv(Fmt*);
-int Pconv(Fmt*);
-int Sconv(Fmt*);
-int aclass(Adr*);
-void addhist(int32, int);
-Prog* appendp(Prog*);
+int Iconv(Fmt *fp);
+void adddynlib(char *lib);
+void adddynrel(LSym *s, Reloc *r);
+void adddynrela(LSym *rel, LSym *s, Reloc *r);
+void adddynsym(Link *ctxt, LSym *s);
+int archreloc(Reloc *r, LSym *s, vlong *val);
void asmb(void);
-void asmout(Prog*, Optab*, int32*, Sym*);
-int32 atolwhex(char*);
-Prog* brloop(Prog*);
-void buildop(void);
-void buildrep(int, int);
-void cflush(void);
-int chipzero(Ieee*);
-int chipfloat(Ieee*);
-int cmp(int, int);
-int compound(Prog*);
-double cputime(void);
-void diag(char*, ...);
-void divsig(void);
-void dodata(void);
-void doprof1(void);
-void doprof2(void);
-int32 entryvalue(void);
-void exchange(Prog*);
-void follow(void);
-void hputl(int);
-int isnop(Prog*);
+void cput(int32 c);
+int elfreloc1(Reloc *r, vlong sectoff);
+void elfsetupplt(void);
+void hput(int32 l);
void listinit(void);
-Sym* lookup(char*, int);
-void cput(int);
-void hput(int32);
-void lput(int32);
-void lputb(int32);
-void lputl(int32);
-void* mysbrk(uint32);
-void names(void);
-void nocache(Prog*);
-int ocmp(const void*, const void*);
-int32 opirr(int);
-Optab* oplook(Prog*);
-int32 oprrr(int, int);
-int32 olr(int32, int, int, int);
-int32 olhr(int32, int, int, int);
-int32 olrr(int, int, int, int);
-int32 olhrr(int, int, int, int);
-int32 osr(int, int, int32, int, int);
-int32 oshr(int, int32, int, int);
-int32 ofsr(int, int, int32, int, int, Prog*);
-int32 osrr(int, int, int, int);
-int32 oshrr(int, int, int, int);
-int32 omvl(Prog*, Adr*, int);
-void patch(void);
-void prasm(Prog*);
-void prepend(Prog*, Prog*);
-Prog* prg(void);
-int pseudo(Prog*);
-int32 regoff(Adr*);
-int relinv(int);
-int32 rnd(int32, int32);
-void softfloat(void);
-void span(void);
-void strnput(char*, int);
-int32 symaddr(Sym*);
-void undef(void);
-void vputb(uint64);
-void vputl(uint64);
-void wputb(uint16);
-void wput(int32);
-void wputl(ushort w);
-void xdefine(char*, int, int32);
+void lput(int32 l);
+int machoreloc1(Reloc *r, vlong sectoff);
+void main(int argc, char *argv[]);
void noops(void);
-int32 immrot(uint32);
-int32 immaddr(int32);
-int32 opbra(int, int);
-int brextra(Prog*);
-int isbranch(Prog*);
-void doelf(void);
-void dozerostk(void); // used by -Z
-
-vlong addaddr(Sym *s, Sym *t);
-vlong addsize(Sym *s, Sym *t);
-vlong addstring(Sym *s, char *str);
-vlong adduint16(Sym *s, uint16 v);
-vlong adduint32(Sym *s, uint32 v);
-vlong adduint64(Sym *s, uint64 v);
-vlong adduint8(Sym *s, uint8 v);
-vlong adduintxx(Sym *s, uint64 v, int wid);
+void nopstat(char *f, Count *c);
+int32 rnd(int32 v, int32 r);
+void wput(int32 l);
/* Native is little-endian */
#define LPUT(a) lputl(a)
diff --git a/src/cmd/5l/list.c b/src/cmd/5l/list.c
index 7502a3b81..875fc3e6b 100644
--- a/src/cmd/5l/list.c
+++ b/src/cmd/5l/list.c
@@ -36,355 +36,10 @@
void
listinit(void)
{
-
- fmtinstall('A', Aconv);
- fmtinstall('C', Cconv);
- fmtinstall('D', Dconv);
- fmtinstall('P', Pconv);
- fmtinstall('S', Sconv);
- fmtinstall('N', Nconv);
- fmtinstall('O', Oconv); // C_type constants
+ listinit5();
fmtinstall('I', Iconv);
}
-void
-prasm(Prog *p)
-{
- print("%P\n", p);
-}
-
-int
-Pconv(Fmt *fp)
-{
- Prog *p;
- int a;
-
- p = va_arg(fp->args, Prog*);
- curp = p;
- a = p->as;
- switch(a) {
- default:
- fmtprint(fp, "(%d)", p->line);
- if(p->reg == NREG && p->as != AGLOBL)
- fmtprint(fp, " %A%C %D,%D",
- a, p->scond, &p->from, &p->to);
- else
- if(p->from.type != D_FREG)
- fmtprint(fp, " %A%C %D,R%d,%D",
- a, p->scond, &p->from, p->reg, &p->to);
- else
- fmtprint(fp, " %A%C %D,F%d,%D",
- a, p->scond, &p->from, p->reg, &p->to);
- break;
-
- case ASWPW:
- case ASWPBU:
- fmtprint(fp, "(%d) %A%C R%d,%D,%D",
- p->line, a, p->scond, p->reg, &p->from, &p->to);
- break;
-
- case ADATA:
- case AINIT_:
- case ADYNT_:
- fmtprint(fp, "(%d) %A%C %D/%d,%D",
- p->line, a, p->scond, &p->from, p->reg, &p->to);
- break;
-
- case AWORD:
- fmtprint(fp, "(%d) WORD %D", p->line, &p->to);
- break;
-
- case ADWORD:
- fmtprint(fp, "(%d) DWORD %D %D", p->line, &p->from, &p->to);
- break;
- }
-
- if(p->spadj)
- fmtprint(fp, " (spadj%+d)", p->spadj);
-
- return 0;
-}
-
-int
-Aconv(Fmt *fp)
-{
- char *s;
- int a;
-
- a = va_arg(fp->args, int);
- s = "???";
- if(a >= AXXX && a < ALAST)
- s = anames[a];
- return fmtstrcpy(fp, s);
-}
-
-char* strcond[16] =
-{
- ".EQ",
- ".NE",
- ".HS",
- ".LO",
- ".MI",
- ".PL",
- ".VS",
- ".VC",
- ".HI",
- ".LS",
- ".GE",
- ".LT",
- ".GT",
- ".LE",
- "",
- ".NV"
-};
-
-int
-Cconv(Fmt *fp)
-{
- char s[20];
- int c;
-
- c = va_arg(fp->args, int);
- strcpy(s, strcond[c & C_SCOND]);
- if(c & C_SBIT)
- strcat(s, ".S");
- if(c & C_PBIT)
- strcat(s, ".P");
- if(c & C_WBIT)
- strcat(s, ".W");
- if(c & C_UBIT) /* ambiguous with FBIT */
- strcat(s, ".U");
- return fmtstrcpy(fp, s);
-}
-
-int
-Dconv(Fmt *fp)
-{
- char str[STRINGSZ];
- const char *op;
- Adr *a;
- int32 v;
-
- a = va_arg(fp->args, Adr*);
- switch(a->type) {
-
- default:
- snprint(str, sizeof str, "GOK-type(%d)", a->type);
- break;
-
- case D_NONE:
- str[0] = 0;
- if(a->name != D_NONE || a->reg != NREG || a->sym != S)
- snprint(str, sizeof str, "%N(R%d)(NONE)", a, a->reg);
- break;
-
- case D_CONST:
- if(a->reg == NREG)
- snprint(str, sizeof str, "$%N", a);
- else
- snprint(str, sizeof str, "$%N(R%d)", a, a->reg);
- break;
-
- case D_CONST2:
- snprint(str, sizeof str, "$%d-%d", a->offset, a->offset2);
- break;
-
- case D_SHIFT:
- v = a->offset;
- op = &"<<>>->@>"[(((v>>5) & 3) << 1)];
- if(v & (1<<4))
- snprint(str, sizeof str, "R%d%c%cR%d", v&15, op[0], op[1], (v>>8)&15);
- else
- snprint(str, sizeof str, "R%d%c%c%d", v&15, op[0], op[1], (v>>7)&31);
- if(a->reg != NREG)
- seprint(str+strlen(str), str+sizeof str, "(R%d)", a->reg);
- break;
-
- case D_OCONST:
- snprint(str, sizeof str, "$*$%N", a);
- if(a->reg != NREG)
- snprint(str, sizeof str, "%N(R%d)(CONST)", a, a->reg);
- break;
-
- case D_OREG:
- if(a->reg != NREG)
- snprint(str, sizeof str, "%N(R%d)", a, a->reg);
- else
- snprint(str, sizeof str, "%N", a);
- break;
-
- case D_REG:
- snprint(str, sizeof str, "R%d", a->reg);
- if(a->name != D_NONE || a->sym != S)
- snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
- break;
-
- case D_REGREG:
- snprint(str, sizeof str, "(R%d,R%d)", a->reg, (int)a->offset);
- if(a->name != D_NONE || a->sym != S)
- snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
- break;
-
- case D_REGREG2:
- snprint(str, sizeof str, "R%d,R%d", a->reg, (int)a->offset);
- if(a->name != D_NONE || a->sym != S)
- snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
- break;
-
- case D_FREG:
- snprint(str, sizeof str, "F%d", a->reg);
- if(a->name != D_NONE || a->sym != S)
- snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
- break;
-
- case D_PSR:
- switch(a->reg) {
- case 0:
- snprint(str, sizeof str, "CPSR");
- break;
- case 1:
- snprint(str, sizeof str, "SPSR");
- break;
- default:
- snprint(str, sizeof str, "PSR%d", a->reg);
- break;
- }
- if(a->name != D_NONE || a->sym != S)
- snprint(str, sizeof str, "%N(PSR%d)(REG)", a, a->reg);
- break;
-
- case D_FPCR:
- switch(a->reg){
- case 0:
- snprint(str, sizeof str, "FPSR");
- break;
- case 1:
- snprint(str, sizeof str, "FPCR");
- break;
- default:
- snprint(str, sizeof str, "FCR%d", a->reg);
- break;
- }
- if(a->name != D_NONE || a->sym != S)
- snprint(str, sizeof str, "%N(FCR%d)(REG)", a, a->reg);
-
- break;
-
- case D_BRANCH: /* botch */
- if(curp->cond != P) {
- v = curp->cond->pc;
- if(a->sym != S)
- snprint(str, sizeof str, "%s+%.5ux(BRANCH)", a->sym->name, v);
- else
- snprint(str, sizeof str, "%.5ux(BRANCH)", v);
- } else
- if(a->sym != S)
- snprint(str, sizeof str, "%s+%d(APC)", a->sym->name, a->offset);
- else
- snprint(str, sizeof str, "%d(APC)", a->offset);
- break;
-
- case D_FCONST:
- snprint(str, sizeof str, "$%e", ieeedtod(&a->ieee));
- break;
-
- case D_SCONST:
- snprint(str, sizeof str, "$\"%S\"", a->sval);
- break;
- }
- return fmtstrcpy(fp, str);
-}
-
-int
-Nconv(Fmt *fp)
-{
- char str[STRINGSZ];
- Adr *a;
- Sym *s;
-
- a = va_arg(fp->args, Adr*);
- s = a->sym;
- switch(a->name) {
- default:
- sprint(str, "GOK-name(%d)", a->name);
- break;
-
- case D_NONE:
- sprint(str, "%d", a->offset);
- break;
-
- case D_EXTERN:
- if(s == S)
- sprint(str, "%d(SB)", a->offset);
- else
- sprint(str, "%s+%d(SB)", s->name, a->offset);
- break;
-
- case D_STATIC:
- if(s == S)
- sprint(str, "<>+%d(SB)", a->offset);
- else
- sprint(str, "%s<>+%d(SB)", s->name, a->offset);
- break;
-
- case D_AUTO:
- if(s == S)
- sprint(str, "%d(SP)", a->offset);
- else
- sprint(str, "%s-%d(SP)", s->name, -a->offset);
- break;
-
- case D_PARAM:
- if(s == S)
- sprint(str, "%d(FP)", a->offset);
- else
- sprint(str, "%s+%d(FP)", s->name, a->offset);
- break;
- }
- return fmtstrcpy(fp, str);
-}
-
-int
-Sconv(Fmt *fp)
-{
- int i, c;
- char str[STRINGSZ], *p, *a;
-
- a = va_arg(fp->args, char*);
- p = str;
- for(i=0; i<sizeof(int32); i++) {
- c = a[i] & 0xff;
- if(c >= 'a' && c <= 'z' ||
- c >= 'A' && c <= 'Z' ||
- c >= '0' && c <= '9' ||
- c == ' ' || c == '%') {
- *p++ = c;
- continue;
- }
- *p++ = '\\';
- switch(c) {
- case 0:
- *p++ = 'z';
- continue;
- case '\\':
- case '"':
- *p++ = c;
- continue;
- case '\n':
- *p++ = 'n';
- continue;
- case '\t':
- *p++ = 't';
- continue;
- }
- *p++ = (c>>6) + '0';
- *p++ = ((c>>3) & 7) + '0';
- *p++ = (c & 7) + '0';
- }
- *p = 0;
- return fmtstrcpy(fp, str);
-}
-
int
Iconv(Fmt *fp)
{
@@ -413,83 +68,3 @@ Iconv(Fmt *fp)
free(s);
return 0;
}
-
-static char*
-cnames[] =
-{
- [C_ADDR] = "C_ADDR",
- [C_FAUTO] = "C_FAUTO",
- [C_ZFCON] = "C_SFCON",
- [C_SFCON] = "C_SFCON",
- [C_LFCON] = "C_LFCON",
- [C_FCR] = "C_FCR",
- [C_FOREG] = "C_FOREG",
- [C_FREG] = "C_FREG",
- [C_GOK] = "C_GOK",
- [C_HAUTO] = "C_HAUTO",
- [C_HFAUTO] = "C_HFAUTO",
- [C_HFOREG] = "C_HFOREG",
- [C_HOREG] = "C_HOREG",
- [C_HREG] = "C_HREG",
- [C_LACON] = "C_LACON",
- [C_LAUTO] = "C_LAUTO",
- [C_LBRA] = "C_LBRA",
- [C_LCON] = "C_LCON",
- [C_LCONADDR] = "C_LCONADDR",
- [C_LOREG] = "C_LOREG",
- [C_NCON] = "C_NCON",
- [C_NONE] = "C_NONE",
- [C_PC] = "C_PC",
- [C_PSR] = "C_PSR",
- [C_RACON] = "C_RACON",
- [C_RCON] = "C_RCON",
- [C_REG] = "C_REG",
- [C_REGREG] = "C_REGREG",
- [C_REGREG2] = "C_REGREG2",
- [C_ROREG] = "C_ROREG",
- [C_SAUTO] = "C_SAUTO",
- [C_SBRA] = "C_SBRA",
- [C_SCON] = "C_SCON",
- [C_SHIFT] = "C_SHIFT",
- [C_SOREG] = "C_SOREG",
- [C_SP] = "C_SP",
- [C_SROREG] = "C_SROREG"
-};
-
-int
-Oconv(Fmt *fp)
-{
- char buf[500];
- int o;
-
- o = va_arg(fp->args, int);
- if(o < 0 || o >= nelem(cnames) || cnames[o] == nil) {
- snprint(buf, sizeof(buf), "C_%d", o);
- return fmtstrcpy(fp, buf);
- }
- return fmtstrcpy(fp, cnames[o]);
-}
-
-void
-diag(char *fmt, ...)
-{
- char buf[1024], *tn, *sep;
- va_list arg;
-
- tn = "";
- sep = "";
- if(cursym != S) {
- tn = cursym->name;
- sep = ": ";
- }
- va_start(arg, fmt);
- vseprint(buf, buf+sizeof(buf), fmt, arg);
- va_end(arg);
- print("%s%s%s\n", tn, sep, buf);
-
- nerrors++;
- if(nerrors > 20) {
- print("too many errors\n");
- errorexit();
- }
-}
diff --git a/src/cmd/5l/noop.c b/src/cmd/5l/noop.c
index 305ed684e..d42c86289 100644
--- a/src/cmd/5l/noop.c
+++ b/src/cmd/5l/noop.c
@@ -32,677 +32,12 @@
#include "l.h"
#include "../ld/lib.h"
-#include "../../pkg/runtime/stack.h"
-
-static Sym* sym_div;
-static Sym* sym_divu;
-static Sym* sym_mod;
-static Sym* sym_modu;
-static Sym* symmorestack;
-static Prog* pmorestack;
-
-static Prog* stacksplit(Prog*, int32);
-
-static void
-linkcase(Prog *casep)
-{
- Prog *p;
-
- for(p = casep; p != P; p = p->link){
- if(p->as == ABCASE) {
- for(; p != P && p->as == ABCASE; p = p->link)
- p->pcrel = casep;
- break;
- }
- }
-}
void
noops(void)
{
- Prog *p, *q, *q1, *q2;
- int o;
- Sym *tlsfallback, *gmsym;
-
- /*
- * find leaf subroutines
- * strip NOPs
- * expand RET
- * expand BECOME pseudo
- * fixup TLS
- */
-
- if(debug['v'])
- Bprint(&bso, "%5.2f noops\n", cputime());
- Bflush(&bso);
-
- symmorestack = lookup("runtime.morestack", 0);
- if(symmorestack->type != STEXT) {
- diag("runtime·morestack not defined");
- errorexit();
- }
- pmorestack = symmorestack->text;
- pmorestack->reg |= NOSPLIT;
-
- tlsfallback = lookup("runtime.read_tls_fallback", 0);
- gmsym = S;
- if(linkmode == LinkExternal)
- gmsym = lookup("runtime.tlsgm", 0);
- q = P;
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- for(p = cursym->text; p != P; p = p->link) {
- switch(p->as) {
- case ACASE:
- if(flag_shared)
- linkcase(p);
- break;
-
- case ATEXT:
- p->mark |= LEAF;
- break;
-
- case ARET:
- break;
-
- case ADIV:
- case ADIVU:
- case AMOD:
- case AMODU:
- q = p;
- if(prog_div == P)
- initdiv();
- cursym->text->mark &= ~LEAF;
- continue;
-
- case ANOP:
- q1 = p->link;
- q->link = q1; /* q is non-nop */
- if(q1 != P)
- q1->mark |= p->mark;
- continue;
-
- case ABL:
- case ABX:
- cursym->text->mark &= ~LEAF;
-
- case ABCASE:
- case AB:
-
- case ABEQ:
- case ABNE:
- case ABCS:
- case ABHS:
- case ABCC:
- case ABLO:
- case ABMI:
- case ABPL:
- case ABVS:
- case ABVC:
- case ABHI:
- case ABLS:
- case ABGE:
- case ABLT:
- case ABGT:
- case ABLE:
- q1 = p->cond;
- if(q1 != P) {
- while(q1->as == ANOP) {
- q1 = q1->link;
- p->cond = q1;
- }
- }
- break;
- case AWORD:
- // Rewrite TLS register fetch: MRC 15, 0, <reg>, C13, C0, 3
- if((p->to.offset & 0xffff0fff) == 0xee1d0f70) {
- if(HEADTYPE == Hopenbsd) {
- p->as = ARET;
- } else if(goarm < 7) {
- if(tlsfallback->type != STEXT) {
- diag("runtime·read_tls_fallback not defined");
- errorexit();
- }
- // BL runtime.read_tls_fallback(SB)
- p->as = ABL;
- p->to.type = D_BRANCH;
- p->to.sym = tlsfallback;
- p->cond = tlsfallback->text;
- p->to.offset = 0;
- cursym->text->mark &= ~LEAF;
- }
- if(linkmode == LinkExternal) {
- // runtime.tlsgm is relocated with R_ARM_TLS_LE32
- // and $runtime.tlsgm will contain the TLS offset.
- //
- // MOV $runtime.tlsgm+tlsoffset(SB), REGTMP
- // ADD REGTMP, <reg>
- //
- // In shared mode, runtime.tlsgm is relocated with
- // R_ARM_TLS_IE32 and runtime.tlsgm(SB) will point
- // to the GOT entry containing the TLS offset.
- //
- // MOV runtime.tlsgm(SB), REGTMP
- // ADD REGTMP, <reg>
- // SUB -tlsoffset, <reg>
- //
- // The SUB compensates for tlsoffset
- // used in runtime.save_gm and runtime.load_gm.
- q = p;
- p = appendp(p);
- p->as = AMOVW;
- p->scond = 14;
- p->reg = NREG;
- if(flag_shared) {
- p->from.type = D_OREG;
- p->from.offset = 0;
- } else {
- p->from.type = D_CONST;
- p->from.offset = tlsoffset;
- }
- p->from.sym = gmsym;
- p->from.name = D_EXTERN;
- p->to.type = D_REG;
- p->to.reg = REGTMP;
- p->to.offset = 0;
-
- p = appendp(p);
- p->as = AADD;
- p->scond = 14;
- p->reg = NREG;
- p->from.type = D_REG;
- p->from.reg = REGTMP;
- p->to.type = D_REG;
- p->to.reg = (q->to.offset & 0xf000) >> 12;
- p->to.offset = 0;
-
- if(flag_shared) {
- p = appendp(p);
- p->as = ASUB;
- p->scond = 14;
- p->reg = NREG;
- p->from.type = D_CONST;
- p->from.offset = -tlsoffset;
- p->to.type = D_REG;
- p->to.reg = (q->to.offset & 0xf000) >> 12;
- p->to.offset = 0;
- }
- }
- }
- }
- q = p;
- }
- }
-
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- for(p = cursym->text; p != P; p = p->link) {
- o = p->as;
- switch(o) {
- case ATEXT:
- autosize = p->to.offset + 4;
- if(autosize <= 4)
- if(cursym->text->mark & LEAF) {
- p->to.offset = -4;
- autosize = 0;
- }
-
- if(!autosize && !(cursym->text->mark & LEAF)) {
- if(debug['v'])
- Bprint(&bso, "save suppressed in: %s\n",
- cursym->name);
- Bflush(&bso);
- cursym->text->mark |= LEAF;
- }
- if(cursym->text->mark & LEAF) {
- cursym->leaf = 1;
- if(!autosize)
- break;
- }
-
- if(!(p->reg & NOSPLIT))
- p = stacksplit(p, autosize); // emit split check
-
- // MOVW.W R14,$-autosize(SP)
- p = appendp(p);
- p->as = AMOVW;
- p->scond |= C_WBIT;
- p->from.type = D_REG;
- p->from.reg = REGLINK;
- p->to.type = D_OREG;
- p->to.offset = -autosize;
- p->to.reg = REGSP;
- p->spadj = autosize;
-
- if(cursym->text->reg & WRAPPER) {
- // g->panicwrap += autosize;
- // MOVW panicwrap_offset(g), R3
- // ADD $autosize, R3
- // MOVW R3 panicwrap_offset(g)
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_OREG;
- p->from.reg = REGG;
- p->from.offset = 2*PtrSize;
- p->to.type = D_REG;
- p->to.reg = 3;
-
- p = appendp(p);
- p->as = AADD;
- p->from.type = D_CONST;
- p->from.offset = autosize;
- p->to.type = D_REG;
- p->to.reg = 3;
-
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_REG;
- p->from.reg = 3;
- p->to.type = D_OREG;
- p->to.reg = REGG;
- p->to.offset = 2*PtrSize;
- }
- break;
-
- case ARET:
- nocache(p);
- if(cursym->text->mark & LEAF) {
- if(!autosize) {
- p->as = AB;
- p->from = zprg.from;
- if(p->to.sym) { // retjmp
- p->to.type = D_BRANCH;
- p->cond = p->to.sym->text;
- } else {
- p->to.type = D_OREG;
- p->to.offset = 0;
- p->to.reg = REGLINK;
- }
- break;
- }
- }
-
- if(cursym->text->reg & WRAPPER) {
- int cond;
-
- // Preserve original RET's cond, to allow RET.EQ
- // in the implementation of reflect.call.
- cond = p->scond;
- p->scond = C_SCOND_NONE;
-
- // g->panicwrap -= autosize;
- // MOVW panicwrap_offset(g), R3
- // SUB $autosize, R3
- // MOVW R3 panicwrap_offset(g)
- p->as = AMOVW;
- p->from.type = D_OREG;
- p->from.reg = REGG;
- p->from.offset = 2*PtrSize;
- p->to.type = D_REG;
- p->to.reg = 3;
- p = appendp(p);
-
- p->as = ASUB;
- p->from.type = D_CONST;
- p->from.offset = autosize;
- p->to.type = D_REG;
- p->to.reg = 3;
- p = appendp(p);
-
- p->as = AMOVW;
- p->from.type = D_REG;
- p->from.reg = 3;
- p->to.type = D_OREG;
- p->to.reg = REGG;
- p->to.offset = 2*PtrSize;
- p = appendp(p);
-
- p->scond = cond;
- }
-
- p->as = AMOVW;
- p->scond |= C_PBIT;
- p->from.type = D_OREG;
- p->from.offset = autosize;
- p->from.reg = REGSP;
- p->to.type = D_REG;
- p->to.reg = REGPC;
- // If there are instructions following
- // this ARET, they come from a branch
- // with the same stackframe, so no spadj.
-
- if(p->to.sym) { // retjmp
- p->to.reg = REGLINK;
- q2 = appendp(p);
- q2->as = AB;
- q2->to.type = D_BRANCH;
- q2->to.sym = p->to.sym;
- q2->cond = p->to.sym->text;
- p->to.sym = nil;
- p = q2;
- }
- break;
-
- case AADD:
- if(p->from.type == D_CONST && p->from.reg == NREG && p->to.type == D_REG && p->to.reg == REGSP)
- p->spadj = -p->from.offset;
- break;
-
- case ASUB:
- if(p->from.type == D_CONST && p->from.reg == NREG && p->to.type == D_REG && p->to.reg == REGSP)
- p->spadj = p->from.offset;
- break;
-
- case ADIV:
- case ADIVU:
- case AMOD:
- case AMODU:
- if(debug['M'])
- break;
- if(p->from.type != D_REG)
- break;
- if(p->to.type != D_REG)
- break;
- q1 = p;
-
- /* MOV a,4(SP) */
- p = appendp(p);
- p->as = AMOVW;
- p->line = q1->line;
- p->from.type = D_REG;
- p->from.reg = q1->from.reg;
- p->to.type = D_OREG;
- p->to.reg = REGSP;
- p->to.offset = 4;
-
- /* MOV b,REGTMP */
- p = appendp(p);
- p->as = AMOVW;
- p->line = q1->line;
- p->from.type = D_REG;
- p->from.reg = q1->reg;
- if(q1->reg == NREG)
- p->from.reg = q1->to.reg;
- p->to.type = D_REG;
- p->to.reg = REGTMP;
- p->to.offset = 0;
-
- /* CALL appropriate */
- p = appendp(p);
- p->as = ABL;
- p->line = q1->line;
- p->to.type = D_BRANCH;
- p->cond = p;
- switch(o) {
- case ADIV:
- p->cond = prog_div;
- p->to.sym = sym_div;
- break;
- case ADIVU:
- p->cond = prog_divu;
- p->to.sym = sym_divu;
- break;
- case AMOD:
- p->cond = prog_mod;
- p->to.sym = sym_mod;
- break;
- case AMODU:
- p->cond = prog_modu;
- p->to.sym = sym_modu;
- break;
- }
+ LSym *s;
- /* MOV REGTMP, b */
- p = appendp(p);
- p->as = AMOVW;
- p->line = q1->line;
- p->from.type = D_REG;
- p->from.reg = REGTMP;
- p->from.offset = 0;
- p->to.type = D_REG;
- p->to.reg = q1->to.reg;
-
- /* ADD $8,SP */
- p = appendp(p);
- p->as = AADD;
- p->line = q1->line;
- p->from.type = D_CONST;
- p->from.reg = NREG;
- p->from.offset = 8;
- p->reg = NREG;
- p->to.type = D_REG;
- p->to.reg = REGSP;
- p->spadj = -8;
-
- /* Keep saved LR at 0(SP) after SP change. */
- /* MOVW 0(SP), REGTMP; MOVW REGTMP, -8!(SP) */
- /* TODO: Remove SP adjustments; see issue 6699. */
- q1->as = AMOVW;
- q1->from.type = D_OREG;
- q1->from.reg = REGSP;
- q1->from.offset = 0;
- q1->reg = NREG;
- q1->to.type = D_REG;
- q1->to.reg = REGTMP;
-
- /* SUB $8,SP */
- q1 = appendp(q1);
- q1->as = AMOVW;
- q1->from.type = D_REG;
- q1->from.reg = REGTMP;
- q1->reg = NREG;
- q1->to.type = D_OREG;
- q1->to.reg = REGSP;
- q1->to.offset = -8;
- q1->scond |= C_WBIT;
- q1->spadj = 8;
-
- break;
- case AMOVW:
- if((p->scond & C_WBIT) && p->to.type == D_OREG && p->to.reg == REGSP)
- p->spadj = -p->to.offset;
- if((p->scond & C_PBIT) && p->from.type == D_OREG && p->from.reg == REGSP && p->to.reg != REGPC)
- p->spadj = -p->from.offset;
- if(p->from.type == D_CONST && p->from.reg == REGSP && p->to.type == D_REG && p->to.reg == REGSP)
- p->spadj = -p->from.offset;
- break;
- }
- }
- }
-}
-
-static Prog*
-stacksplit(Prog *p, int32 framesize)
-{
- int32 arg;
-
- // MOVW g_stackguard(g), R1
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_OREG;
- p->from.reg = REGG;
- p->to.type = D_REG;
- p->to.reg = 1;
-
- if(framesize <= StackSmall) {
- // small stack: SP < stackguard
- // CMP stackguard, SP
- p = appendp(p);
- p->as = ACMP;
- p->from.type = D_REG;
- p->from.reg = 1;
- p->reg = REGSP;
- } else if(framesize <= StackBig) {
- // large stack: SP-framesize < stackguard-StackSmall
- // MOVW $-framesize(SP), R2
- // CMP stackguard, R2
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_CONST;
- p->from.reg = REGSP;
- p->from.offset = -framesize;
- p->to.type = D_REG;
- p->to.reg = 2;
-
- p = appendp(p);
- p->as = ACMP;
- p->from.type = D_REG;
- p->from.reg = 1;
- p->reg = 2;
- } else {
- // Such a large stack we need to protect against wraparound
- // if SP is close to zero.
- // SP-stackguard+StackGuard < framesize + (StackGuard-StackSmall)
- // The +StackGuard on both sides is required to keep the left side positive:
- // SP is allowed to be slightly below stackguard. See stack.h.
- // CMP $StackPreempt, R1
- // MOVW.NE $StackGuard(SP), R2
- // SUB.NE R1, R2
- // MOVW.NE $(framesize+(StackGuard-StackSmall)), R3
- // CMP.NE R3, R2
- p = appendp(p);
- p->as = ACMP;
- p->from.type = D_CONST;
- p->from.offset = (uint32)StackPreempt;
- p->reg = 1;
-
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_CONST;
- p->from.reg = REGSP;
- p->from.offset = StackGuard;
- p->to.type = D_REG;
- p->to.reg = 2;
- p->scond = C_SCOND_NE;
-
- p = appendp(p);
- p->as = ASUB;
- p->from.type = D_REG;
- p->from.reg = 1;
- p->to.type = D_REG;
- p->to.reg = 2;
- p->scond = C_SCOND_NE;
-
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_CONST;
- p->from.offset = framesize + (StackGuard - StackSmall);
- p->to.type = D_REG;
- p->to.reg = 3;
- p->scond = C_SCOND_NE;
-
- p = appendp(p);
- p->as = ACMP;
- p->from.type = D_REG;
- p->from.reg = 3;
- p->reg = 2;
- p->scond = C_SCOND_NE;
- }
-
- // MOVW.LS $framesize, R1
- p = appendp(p);
- p->as = AMOVW;
- p->scond = C_SCOND_LS;
- p->from.type = D_CONST;
- p->from.offset = framesize;
- p->to.type = D_REG;
- p->to.reg = 1;
-
- // MOVW.LS $args, R2
- p = appendp(p);
- p->as = AMOVW;
- p->scond = C_SCOND_LS;
- p->from.type = D_CONST;
- arg = cursym->text->to.offset2;
- if(arg == 1) // special marker for known 0
- arg = 0;
- if(arg&3)
- diag("misaligned argument size in stack split");
- p->from.offset = arg;
- p->to.type = D_REG;
- p->to.reg = 2;
-
- // MOVW.LS R14, R3
- p = appendp(p);
- p->as = AMOVW;
- p->scond = C_SCOND_LS;
- p->from.type = D_REG;
- p->from.reg = REGLINK;
- p->to.type = D_REG;
- p->to.reg = 3;
-
- // BL.LS runtime.morestack(SB) // modifies LR, returns with LO still asserted
- p = appendp(p);
- p->as = ABL;
- p->scond = C_SCOND_LS;
- p->to.type = D_BRANCH;
- p->to.sym = symmorestack;
- p->cond = pmorestack;
-
- // BLS start
- p = appendp(p);
- p->as = ABLS;
- p->to.type = D_BRANCH;
- p->cond = cursym->text->link;
-
- return p;
-}
-
-static void
-sigdiv(char *n)
-{
- Sym *s;
-
- s = lookup(n, 0);
- if(s->type == STEXT)
- if(s->sig == 0)
- s->sig = SIGNINTERN;
-}
-
-void
-divsig(void)
-{
- sigdiv("_div");
- sigdiv("_divu");
- sigdiv("_mod");
- sigdiv("_modu");
-}
-
-void
-initdiv(void)
-{
- Sym *s2, *s3, *s4, *s5;
-
- if(prog_div != P)
- return;
- sym_div = s2 = lookup("_div", 0);
- sym_divu = s3 = lookup("_divu", 0);
- sym_mod = s4 = lookup("_mod", 0);
- sym_modu = s5 = lookup("_modu", 0);
- prog_div = s2->text;
- prog_divu = s3->text;
- prog_mod = s4->text;
- prog_modu = s5->text;
- if(prog_div == P) {
- diag("undefined: %s", s2->name);
- prog_div = cursym->text;
- }
- if(prog_divu == P) {
- diag("undefined: %s", s3->name);
- prog_divu = cursym->text;
- }
- if(prog_mod == P) {
- diag("undefined: %s", s4->name);
- prog_mod = cursym->text;
- }
- if(prog_modu == P) {
- diag("undefined: %s", s5->name);
- prog_modu = cursym->text;
- }
-}
-
-void
-nocache(Prog *p)
-{
- p->optab = 0;
- p->from.class = 0;
- p->to.class = 0;
+ for(s = ctxt->textp; s != nil; s = s->next)
+ ctxt->arch->addstacksplit(ctxt, s);
}
diff --git a/src/cmd/5l/obj.c b/src/cmd/5l/obj.c
index 80f5787dc..86a0ece2e 100644
--- a/src/cmd/5l/obj.c
+++ b/src/cmd/5l/obj.c
@@ -30,120 +30,24 @@
// Reading object files.
-#define EXTERN
#include "l.h"
#include "../ld/lib.h"
#include "../ld/elf.h"
#include "../ld/dwarf.h"
#include <ar.h>
-#ifndef DEFAULT
-#define DEFAULT '9'
-#endif
-
-char *noname = "<none>";
-char *thestring = "arm";
-
-Header headers[] = {
- "noheader", Hnoheader,
- "risc", Hrisc,
- "plan9", Hplan9x32,
- "ixp1200", Hixp1200,
- "ipaq", Hipaq,
- "linux", Hlinux,
- "freebsd", Hfreebsd,
- "netbsd", Hnetbsd,
- 0, 0
-};
-
-/*
- * -Hrisc -T0x10005000 -R4 is aif for risc os
- * -Hplan9 -T4128 -R4096 is plan9 format
- * -Hixp1200 is IXP1200 (raw)
- * -Hipaq -T0xC0008010 -R1024 is ipaq
- * -Hlinux -Tx -Rx is linux elf
- * -Hfreebsd is freebsd elf
- * -Hnetbsd is netbsd elf
- */
+char *thestring = "arm";
+LinkArch *thelinkarch = &linkarm;
void
-main(int argc, char *argv[])
+linkarchinit(void)
{
- char *p;
- Sym *s;
-
- Binit(&bso, 1, OWRITE);
- listinit();
- nerrors = 0;
- outfile = "5.out";
- HEADTYPE = -1;
- INITTEXT = -1;
- INITDAT = -1;
- INITRND = -1;
- INITENTRY = 0;
- linkmode = LinkAuto;
- nuxiinit();
-
- p = getgoarm();
- if(p != nil)
- goarm = atoi(p);
- else
- goarm = 6;
- if(goarm == 5)
- debug['F'] = 1;
-
- flagcount("1", "use alternate profiling code", &debug['1']);
- flagfn1("B", "info: define ELF NT_GNU_BUILD_ID note", addbuildinfo);
- flagstr("E", "sym: entry symbol", &INITENTRY);
- flagint32("D", "addr: data address", &INITDAT);
- flagcount("G", "debug pseudo-ops", &debug['G']);
- flagfn1("I", "interp: set ELF interp", setinterp);
- flagfn1("L", "dir: add dir to library path", Lflag);
- flagfn1("H", "head: header type", setheadtype);
- flagcount("K", "add stack underflow checks", &debug['K']);
- flagcount("M", "disable software div/mod", &debug['M']);
- flagcount("O", "print pc-line tables", &debug['O']);
- flagcount("P", "debug code generation", &debug['P']);
- flagint32("R", "rnd: address rounding", &INITRND);
- flagint32("T", "addr: text address", &INITTEXT);
- flagfn0("V", "print version and exit", doversion);
- flagcount("W", "disassemble input", &debug['W']);
- flagfn2("X", "name value: define string data", addstrdata);
- flagcount("Z", "clear stack frame on entry", &debug['Z']);
- flagcount("a", "disassemble output", &debug['a']);
- flagcount("c", "dump call graph", &debug['c']);
- flagcount("d", "disable dynamic executable", &debug['d']);
- flagstr("extld", "linker to run in external mode", &extld);
- flagstr("extldflags", "flags for external linker", &extldflags);
- flagcount("f", "ignore version mismatch", &debug['f']);
- flagcount("g", "disable go package data checks", &debug['g']);
- flagstr("installsuffix", "pkg directory suffix", &flag_installsuffix);
- flagstr("k", "sym: set field tracking symbol", &tracksym);
- flagfn1("linkmode", "mode: set link mode (internal, external, auto)", setlinkmode);
- flagcount("n", "dump symbol table", &debug['n']);
- flagstr("o", "outfile: set output file", &outfile);
- flagcount("p", "insert profiling code", &debug['p']);
- flagstr("r", "dir1:dir2:...: set ELF dynamic linker search path", &rpath);
- flagcount("race", "enable race detector", &flag_race);
- flagcount("s", "disable symbol table", &debug['s']);
- flagcount("shared", "generate shared object (implies -linkmode external)", &flag_shared);
- flagstr("tmpdir", "leave temporary files in this directory", &tmpdir);
- flagcount("u", "reject unsafe packages", &debug['u']);
- flagcount("v", "print link trace", &debug['v']);
- flagcount("w", "disable DWARF generation", &debug['w']);
-
- flagparse(&argc, &argv, usage);
-
- if(argc != 1)
- usage();
-
- if(flag_shared)
- linkmode = LinkExternal;
-
- mywhatsys();
+}
- if(HEADTYPE == -1)
- HEADTYPE = headtype(goos);
+void
+archinit(void)
+{
+ LSym *s;
// getgoextlinkenabled is based on GO_EXTLINK_ENABLED when
// Go was built; see ../../make.bash.
@@ -158,34 +62,15 @@ main(int argc, char *argv[])
sysfatal("cannot use -linkmode=external with -H %s", headstr(HEADTYPE));
break;
case Hlinux:
+ case Hfreebsd:
break;
}
- libinit();
-
switch(HEADTYPE) {
default:
diag("unknown -H option");
errorexit();
- case Hnoheader: /* no header */
- HEADR = 0L;
- if(INITTEXT == -1)
- INITTEXT = 0;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 4;
- break;
- case Hrisc: /* aif for risc os */
- HEADR = 128L;
- if(INITTEXT == -1)
- INITTEXT = 0x10005000 + HEADR;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 4;
- break;
- case Hplan9x32: /* plan 9 */
+ case Hplan9: /* plan 9 */
HEADR = 32L;
if(INITTEXT == -1)
INITTEXT = 4128;
@@ -194,30 +79,11 @@ main(int argc, char *argv[])
if(INITRND == -1)
INITRND = 4096;
break;
- case Hixp1200: /* boot for IXP1200 */
- HEADR = 0L;
- if(INITTEXT == -1)
- INITTEXT = 0x0;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 4;
- break;
- case Hipaq: /* boot for ipaq */
- HEADR = 16L;
- if(INITTEXT == -1)
- INITTEXT = 0xC0008010;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 1024;
- break;
case Hlinux: /* arm elf */
case Hfreebsd:
case Hnetbsd:
+ case Hnacl:
debug['d'] = 0; // with dynamic linking
- tlsoffset = -8; // hardcoded number, first 4-byte word for g, and then 4-byte word for m
- // this number is known to ../../pkg/runtime/rt0_*_arm.s
elfinit();
HEADR = ELFRESERVE;
if(INITTEXT == -1)
@@ -231,578 +97,9 @@ main(int argc, char *argv[])
if(INITDAT != 0 && INITRND != 0)
print("warning: -D0x%ux is ignored because of -R0x%ux\n",
INITDAT, INITRND);
- if(debug['v'])
- Bprint(&bso, "HEADER = -H0x%d -T0x%ux -D0x%ux -R0x%ux\n",
- HEADTYPE, INITTEXT, INITDAT, INITRND);
- Bflush(&bso);
- zprg.as = AGOK;
- zprg.scond = 14;
- zprg.reg = NREG;
- zprg.from.name = D_NONE;
- zprg.from.type = D_NONE;
- zprg.from.reg = NREG;
- zprg.to = zprg.from;
- buildop();
- histgen = 0;
- pc = 0;
- dtype = 4;
-
- version = 0;
- cbp = buf.cbuf;
- cbc = sizeof(buf.cbuf);
// embed goarm to runtime.goarm
- s = lookup("runtime.goarm", 0);
- s->dupok = 1;
- adduint8(s, goarm);
-
- addlibpath("command line", "command line", argv[0], "main");
- loadlib();
-
- // mark some functions that are only referenced after linker code editing
- if(debug['F'])
- mark(rlookup("_sfloat", 0));
- mark(lookup("runtime.read_tls_fallback", 0));
- deadcode();
- if(textp == nil) {
- diag("no code");
- errorexit();
- }
-
- patch();
- if(debug['p'])
- if(debug['1'])
- doprof1();
- else
- doprof2();
- doelf();
- follow();
- softfloat();
- // 5l -Z means zero the stack frame on entry.
- // This slows down function calls but can help avoid
- // false positives in garbage collection.
- if(debug['Z'])
- dozerostk();
- noops(); // generate stack split prolog, handle div/mod, etc.
- dostkcheck();
- span();
- addexport();
- // textaddress() functionality is handled in span()
- pclntab();
- symtab();
- dodata();
- address();
- doweak();
- reloc();
- asmb();
- undef();
- hostlink();
-
- if(debug['c'])
- print("ARM size = %d\n", armsize);
- if(debug['v']) {
- Bprint(&bso, "%5.2f cpu time\n", cputime());
- Bprint(&bso, "%d sizeof adr\n", sizeof(Adr));
- Bprint(&bso, "%d sizeof prog\n", sizeof(Prog));
- }
- Bflush(&bso);
- errorexit();
-}
-
-static Sym*
-zsym(char *pn, Biobuf *f, Sym *h[])
-{
- int o;
-
- o = BGETC(f);
- if(o == 0)
- return S;
- if(o < 0 || o >= NSYM || h[o] == nil)
- mangle(pn);
- return h[o];
-}
-
-static void
-zaddr(char *pn, Biobuf *f, Adr *a, Sym *h[])
-{
- int i, c;
- int32 l;
- Sym *s;
- Auto *u;
-
- a->type = BGETC(f);
- a->reg = BGETC(f);
- c = BGETC(f);
- if(c < 0 || c > NSYM){
- print("sym out of range: %d\n", c);
- BPUTC(f, ALAST+1);
- return;
- }
- a->sym = h[c];
- a->name = BGETC(f);
- adrgotype = zsym(pn, f, h);
-
- if((schar)a->reg < 0 || a->reg > NREG) {
- print("register out of range %d\n", a->reg);
- BPUTC(f, ALAST+1);
- return; /* force real diagnostic */
- }
-
- if(a->type == D_CONST || a->type == D_OCONST) {
- if(a->name == D_EXTERN || a->name == D_STATIC) {
- s = a->sym;
- if(s != S && (s->type == STEXT || s->type == SCONST || s->type == SXREF)) {
- if(0 && !s->fnptr && s->name[0] != '.')
- print("%s used as function pointer\n", s->name);
- s->fnptr = 1; // over the top cos of SXREF
- }
- }
- }
-
- switch(a->type) {
- default:
- print("unknown type %d\n", a->type);
- BPUTC(f, ALAST+1);
- return; /* force real diagnostic */
-
- case D_NONE:
- case D_REG:
- case D_FREG:
- case D_PSR:
- case D_FPCR:
- break;
-
- case D_REGREG:
- case D_REGREG2:
- a->offset = BGETC(f);
- break;
-
- case D_CONST2:
- a->offset2 = BGETLE4(f); // fall through
- case D_BRANCH:
- case D_OREG:
- case D_CONST:
- case D_OCONST:
- case D_SHIFT:
- a->offset = BGETLE4(f);
- break;
-
- case D_SCONST:
- a->sval = mal(NSNAME);
- Bread(f, a->sval, NSNAME);
- break;
-
- case D_FCONST:
- a->ieee.l = BGETLE4(f);
- a->ieee.h = BGETLE4(f);
- break;
- }
- s = a->sym;
- if(s == S)
- return;
- i = a->name;
- if(i != D_AUTO && i != D_PARAM) {
- if(s && adrgotype)
- s->gotype = adrgotype;
- return;
- }
-
- l = a->offset;
- for(u=curauto; u; u=u->link)
- if(u->asym == s)
- if(u->type == i) {
- if(u->aoffset > l)
- u->aoffset = l;
- if(adrgotype)
- u->gotype = adrgotype;
- return;
- }
-
- u = mal(sizeof(Auto));
- u->link = curauto;
- curauto = u;
- u->asym = s;
- u->aoffset = l;
- u->type = i;
- u->gotype = adrgotype;
-}
-
-void
-nopout(Prog *p)
-{
- p->as = ANOP;
- p->from.type = D_NONE;
- p->to.type = D_NONE;
-}
-
-void
-ldobj1(Biobuf *f, char *pkg, int64 len, char *pn)
-{
- int32 ipc;
- Prog *p;
- Sym *h[NSYM], *s;
- int v, o, r, skip;
- uint32 sig;
- char *name;
- int ntext;
- int32 eof;
- char src[1024], *x;
- Prog *lastp;
-
- lastp = nil;
- ntext = 0;
- eof = Boffset(f) + len;
- src[0] = 0;
- pn = estrdup(pn); // we keep it in Sym* references
-
-newloop:
- memset(h, 0, sizeof(h));
- version++;
- histfrogp = 0;
- ipc = pc;
- skip = 0;
-
-loop:
- if(f->state == Bracteof || Boffset(f) >= eof)
- goto eof;
- o = BGETC(f);
- if(o == Beof)
- goto eof;
-
- if(o <= AXXX || o >= ALAST) {
- diag("%s:#%lld: opcode out of range: %#ux", pn, Boffset(f), o);
- print(" probably not a .5 file\n");
- errorexit();
- }
- if(o == ANAME || o == ASIGNAME) {
- sig = 0;
- if(o == ASIGNAME)
- sig = BGETLE4(f);
- v = BGETC(f); /* type */
- o = BGETC(f); /* sym */
- r = 0;
- if(v == D_STATIC)
- r = version;
- name = Brdline(f, '\0');
- if(name == nil) {
- if(Blinelen(f) > 0) {
- fprint(2, "%s: name too long\n", pn);
- errorexit();
- }
- goto eof;
- }
- x = expandpkg(name, pkg);
- s = lookup(x, r);
- if(x != name)
- free(x);
-
- if(sig != 0){
- if(s->sig != 0 && s->sig != sig)
- diag("incompatible type signatures %ux(%s) and %ux(%s) for %s", s->sig, s->file, sig, pn, s->name);
- s->sig = sig;
- s->file = pn;
- }
-
- if(debug['W'])
- print(" ANAME %s\n", s->name);
- if(o < 0 || o >= nelem(h)) {
- fprint(2, "%s: mangled input file\n", pn);
- errorexit();
- }
- h[o] = s;
- if((v == D_EXTERN || v == D_STATIC) && s->type == 0)
- s->type = SXREF;
- if(v == D_FILE) {
- if(s->type != SFILE) {
- histgen++;
- s->type = SFILE;
- s->value = histgen;
- }
- if(histfrogp < MAXHIST) {
- histfrog[histfrogp] = s;
- histfrogp++;
- } else
- collapsefrog(s);
- dwarfaddfrag(s->value, s->name);
- }
- goto loop;
- }
-
- p = mal(sizeof(Prog));
- p->as = o;
- p->scond = BGETC(f);
- p->reg = BGETC(f);
- p->line = BGETLE4(f);
-
- zaddr(pn, f, &p->from, h);
- fromgotype = adrgotype;
- zaddr(pn, f, &p->to, h);
-
- if(p->as != ATEXT && p->as != AGLOBL && p->reg > NREG)
- diag("register out of range %A %d", p->as, p->reg);
-
- p->link = P;
- p->cond = P;
-
- if(debug['W'])
- print("%P\n", p);
-
- switch(o) {
- case AHISTORY:
- if(p->to.offset == -1) {
- addlib(src, pn);
- histfrogp = 0;
- goto loop;
- }
- if(src[0] == '\0')
- copyhistfrog(src, sizeof src);
- addhist(p->line, D_FILE); /* 'z' */
- if(p->to.offset)
- addhist(p->to.offset, D_FILE1); /* 'Z' */
- savehist(p->line, p->to.offset);
- histfrogp = 0;
- goto loop;
-
- case AEND:
- histtoauto();
- if(cursym != nil && cursym->text)
- cursym->autom = curauto;
- curauto = 0;
- cursym = nil;
- if(Boffset(f) == eof)
- return;
- goto newloop;
-
- case AGLOBL:
- s = p->from.sym;
- if(s == S) {
- diag("GLOBL must have a name\n%P", p);
- errorexit();
- }
- if(s->type == 0 || s->type == SXREF) {
- s->type = SBSS;
- s->value = 0;
- }
- if(s->type != SBSS && s->type != SNOPTRBSS && !s->dupok) {
- diag("redefinition: %s\n%P", s->name, p);
- s->type = SBSS;
- s->value = 0;
- }
- if(p->to.offset > s->size)
- s->size = p->to.offset;
- if(p->reg & DUPOK)
- s->dupok = 1;
- if(p->reg & RODATA)
- s->type = SRODATA;
- else if(p->reg & NOPTR)
- s->type = SNOPTRBSS;
- break;
-
- case ADATA:
- // Assume that AGLOBL comes after ADATA.
- // If we've seen an AGLOBL that said this sym was DUPOK,
- // ignore any more ADATA we see, which must be
- // redefinitions.
- s = p->from.sym;
- if(s->dupok) {
-// if(debug['v'])
-// Bprint(&bso, "skipping %s in %s: dupok\n", s->name, pn);
- goto loop;
- }
- if(s->file == nil)
- s->file = pn;
- else if(s->file != pn) {
- diag("multiple initialization for %s: in both %s and %s", s->name, s->file, pn);
- errorexit();
- }
- savedata(s, p, pn);
- unmal(p, sizeof *p);
- break;
-
- case AGOK:
- diag("unknown opcode\n%P", p);
- p->pc = pc;
- pc++;
- break;
-
- case ATYPE:
- if(skip)
- goto casedef;
- pc++;
- goto loop;
-
- case ATEXT:
- if(cursym != nil && cursym->text) {
- histtoauto();
- cursym->autom = curauto;
- curauto = 0;
- }
- s = p->from.sym;
- if(s == S) {
- diag("TEXT must have a name\n%P", p);
- errorexit();
- }
- cursym = s;
- if(s->type != 0 && s->type != SXREF && (p->reg & DUPOK)) {
- skip = 1;
- goto casedef;
- }
- if(ntext++ == 0 && s->type != 0 && s->type != SXREF) {
- /* redefinition, so file has probably been seen before */
- if(debug['v'])
- Bprint(&bso, "skipping: %s: redefinition: %s", pn, s->name);
- return;
- }
- skip = 0;
- if(s->type != 0 && s->type != SXREF)
- diag("redefinition: %s\n%P", s->name, p);
- if(etextp)
- etextp->next = s;
- else
- textp = s;
- if(fromgotype) {
- if(s->gotype && s->gotype != fromgotype)
- diag("%s: type mismatch for %s", pn, s->name);
- s->gotype = fromgotype;
- }
- etextp = s;
- p->align = 4;
- autosize = (p->to.offset+3L) & ~3L;
- p->to.offset = autosize;
- autosize += 4;
- s->type = STEXT;
- s->hist = gethist();
- s->text = p;
- s->value = pc;
- s->args = p->to.offset2;
- lastp = p;
- p->pc = pc;
- pc++;
- break;
-
- case ASUB:
- if(p->from.type == D_CONST)
- if(p->from.name == D_NONE)
- if(p->from.offset < 0) {
- p->from.offset = -p->from.offset;
- p->as = AADD;
- }
- goto casedef;
-
- case AADD:
- if(p->from.type == D_CONST)
- if(p->from.name == D_NONE)
- if(p->from.offset < 0) {
- p->from.offset = -p->from.offset;
- p->as = ASUB;
- }
- goto casedef;
-
- case AMOVWD:
- case AMOVWF:
- case AMOVDW:
- case AMOVFW:
- case AMOVFD:
- case AMOVDF:
- // case AMOVF:
- // case AMOVD:
- case ACMPF:
- case ACMPD:
- case AADDF:
- case AADDD:
- case ASUBF:
- case ASUBD:
- case AMULF:
- case AMULD:
- case ADIVF:
- case ADIVD:
- goto casedef;
-
- case AMOVF:
- if(skip)
- goto casedef;
-
- if(p->from.type == D_FCONST && chipfloat(&p->from.ieee) < 0 &&
- (chipzero(&p->from.ieee) < 0 || (p->scond & C_SCOND) != C_SCOND_NONE)) {
- /* size sb 9 max */
- sprint(literal, "$%ux", ieeedtof(&p->from.ieee));
- s = lookup(literal, 0);
- if(s->type == 0) {
- s->type = SRODATA;
- adduint32(s, ieeedtof(&p->from.ieee));
- s->reachable = 0;
- }
- p->from.type = D_OREG;
- p->from.sym = s;
- p->from.name = D_EXTERN;
- p->from.offset = 0;
- }
- goto casedef;
-
- case AMOVD:
- if(skip)
- goto casedef;
-
- if(p->from.type == D_FCONST && chipfloat(&p->from.ieee) < 0 &&
- (chipzero(&p->from.ieee) < 0 || (p->scond & C_SCOND) != C_SCOND_NONE)) {
- /* size sb 18 max */
- sprint(literal, "$%ux.%ux",
- p->from.ieee.l, p->from.ieee.h);
- s = lookup(literal, 0);
- if(s->type == 0) {
- s->type = SRODATA;
- adduint32(s, p->from.ieee.l);
- adduint32(s, p->from.ieee.h);
- s->reachable = 0;
- }
- p->from.type = D_OREG;
- p->from.sym = s;
- p->from.name = D_EXTERN;
- p->from.offset = 0;
- }
- goto casedef;
-
- default:
- casedef:
- if(skip)
- nopout(p);
- p->pc = pc;
- pc++;
- if(p->to.type == D_BRANCH)
- p->to.offset += ipc;
- if(lastp == nil) {
- if(p->as != ANOP)
- diag("unexpected instruction: %P", p);
- break;
- }
- lastp->link = p;
- lastp = p;
- break;
- }
- goto loop;
-
-eof:
- diag("truncated object file: %s", pn);
-}
-
-Prog*
-prg(void)
-{
- Prog *p;
-
- p = mal(sizeof(Prog));
- *p = zprg;
- return p;
-}
-
-Prog*
-appendp(Prog *q)
-{
- Prog *p;
-
- p = prg();
- p->link = q->link;
- q->link = p;
- p->line = q->line;
- return p;
+ s = linklookup(ctxt, "runtime.goarm", 0);
+ s->type = SRODATA;
+ adduint8(ctxt, s, ctxt->goarm);
}
diff --git a/src/cmd/5l/optab.c b/src/cmd/5l/optab.c
deleted file mode 100644
index 3d05d6d09..000000000
--- a/src/cmd/5l/optab.c
+++ /dev/null
@@ -1,277 +0,0 @@
-// Inferno utils/5l/optab.c
-// http://code.google.com/p/inferno-os/source/browse/utils/5l/optab.c
-//
-// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
-// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
-// Portions Copyright © 1997-1999 Vita Nuova Limited
-// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
-// Portions Copyright © 2004,2006 Bruce Ellis
-// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
-// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
-// Portions Copyright © 2009 The Go Authors. All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-#include "l.h"
-
-Optab optab[] =
-{
- /* struct Optab:
- OPCODE, from, prog->reg, to, type,size,param,flag */
- { ATEXT, C_ADDR, C_NONE, C_LCON, 0, 0, 0 },
- { ATEXT, C_ADDR, C_REG, C_LCON, 0, 0, 0 },
-
- { AADD, C_REG, C_REG, C_REG, 1, 4, 0 },
- { AADD, C_REG, C_NONE, C_REG, 1, 4, 0 },
- { AMOVW, C_REG, C_NONE, C_REG, 1, 4, 0 },
- { AMVN, C_REG, C_NONE, C_REG, 1, 4, 0 },
- { ACMP, C_REG, C_REG, C_NONE, 1, 4, 0 },
-
- { AADD, C_RCON, C_REG, C_REG, 2, 4, 0 },
- { AADD, C_RCON, C_NONE, C_REG, 2, 4, 0 },
- { AMOVW, C_RCON, C_NONE, C_REG, 2, 4, 0 },
- { AMVN, C_RCON, C_NONE, C_REG, 2, 4, 0 },
- { ACMP, C_RCON, C_REG, C_NONE, 2, 4, 0 },
-
- { AADD, C_SHIFT,C_REG, C_REG, 3, 4, 0 },
- { AADD, C_SHIFT,C_NONE, C_REG, 3, 4, 0 },
- { AMVN, C_SHIFT,C_NONE, C_REG, 3, 4, 0 },
- { ACMP, C_SHIFT,C_REG, C_NONE, 3, 4, 0 },
-
- { AMOVW, C_RACON,C_NONE, C_REG, 4, 4, REGSP },
-
- { AB, C_NONE, C_NONE, C_SBRA, 5, 4, 0, LPOOL },
- { ABL, C_NONE, C_NONE, C_SBRA, 5, 4, 0 },
- { ABX, C_NONE, C_NONE, C_SBRA, 74, 20, 0 },
- { ABEQ, C_NONE, C_NONE, C_SBRA, 5, 4, 0 },
-
- { AB, C_NONE, C_NONE, C_ROREG, 6, 4, 0, LPOOL },
- { ABL, C_NONE, C_NONE, C_ROREG, 7, 4, 0 },
- { ABL, C_REG, C_NONE, C_ROREG, 7, 4, 0 },
- { ABX, C_NONE, C_NONE, C_ROREG, 75, 12, 0 },
- { ABXRET, C_NONE, C_NONE, C_ROREG, 76, 4, 0 },
-
- { ASLL, C_RCON, C_REG, C_REG, 8, 4, 0 },
- { ASLL, C_RCON, C_NONE, C_REG, 8, 4, 0 },
-
- { ASLL, C_REG, C_NONE, C_REG, 9, 4, 0 },
- { ASLL, C_REG, C_REG, C_REG, 9, 4, 0 },
-
- { ASWI, C_NONE, C_NONE, C_NONE, 10, 4, 0 },
- { ASWI, C_NONE, C_NONE, C_LOREG, 10, 4, 0 },
- { ASWI, C_NONE, C_NONE, C_LCON, 10, 4, 0 },
-
- { AWORD, C_NONE, C_NONE, C_LCON, 11, 4, 0 },
- { AWORD, C_NONE, C_NONE, C_LCONADDR, 11, 4, 0 },
- { AWORD, C_NONE, C_NONE, C_ADDR, 11, 4, 0 },
-
- { AMOVW, C_NCON, C_NONE, C_REG, 12, 4, 0 },
- { AMOVW, C_LCON, C_NONE, C_REG, 12, 4, 0, LFROM },
- { AMOVW, C_LCONADDR, C_NONE, C_REG, 12, 4, 0, LFROM | LPCREL, 4},
-
- { AADD, C_NCON, C_REG, C_REG, 13, 8, 0 },
- { AADD, C_NCON, C_NONE, C_REG, 13, 8, 0 },
- { AMVN, C_NCON, C_NONE, C_REG, 13, 8, 0 },
- { ACMP, C_NCON, C_REG, C_NONE, 13, 8, 0 },
- { AADD, C_LCON, C_REG, C_REG, 13, 8, 0, LFROM },
- { AADD, C_LCON, C_NONE, C_REG, 13, 8, 0, LFROM },
- { AMVN, C_LCON, C_NONE, C_REG, 13, 8, 0, LFROM },
- { ACMP, C_LCON, C_REG, C_NONE, 13, 8, 0, LFROM },
-
- { AMOVB, C_REG, C_NONE, C_REG, 1, 4, 0 },
- { AMOVBS, C_REG, C_NONE, C_REG, 14, 8, 0 },
- { AMOVBU, C_REG, C_NONE, C_REG, 58, 4, 0 },
- { AMOVH, C_REG, C_NONE, C_REG, 1, 4, 0 },
- { AMOVHS, C_REG, C_NONE, C_REG, 14, 8, 0 },
- { AMOVHU, C_REG, C_NONE, C_REG, 14, 8, 0 },
-
- { AMUL, C_REG, C_REG, C_REG, 15, 4, 0 },
- { AMUL, C_REG, C_NONE, C_REG, 15, 4, 0 },
-
- { ADIV, C_REG, C_REG, C_REG, 16, 4, 0 },
- { ADIV, C_REG, C_NONE, C_REG, 16, 4, 0 },
-
- { AMULL, C_REG, C_REG, C_REGREG, 17, 4, 0 },
- { AMULA, C_REG, C_REG, C_REGREG2, 17, 4, 0 },
-
- { AMOVW, C_REG, C_NONE, C_SAUTO, 20, 4, REGSP },
- { AMOVW, C_REG, C_NONE, C_SOREG, 20, 4, 0 },
- { AMOVB, C_REG, C_NONE, C_SAUTO, 20, 4, REGSP },
- { AMOVB, C_REG, C_NONE, C_SOREG, 20, 4, 0 },
- { AMOVBS, C_REG, C_NONE, C_SAUTO, 20, 4, REGSP },
- { AMOVBS, C_REG, C_NONE, C_SOREG, 20, 4, 0 },
- { AMOVBU, C_REG, C_NONE, C_SAUTO, 20, 4, REGSP },
- { AMOVBU, C_REG, C_NONE, C_SOREG, 20, 4, 0 },
-
- { AMOVW, C_SAUTO,C_NONE, C_REG, 21, 4, REGSP },
- { AMOVW, C_SOREG,C_NONE, C_REG, 21, 4, 0 },
- { AMOVBU, C_SAUTO,C_NONE, C_REG, 21, 4, REGSP },
- { AMOVBU, C_SOREG,C_NONE, C_REG, 21, 4, 0 },
-
- { AMOVW, C_REG, C_NONE, C_LAUTO, 30, 8, REGSP, LTO },
- { AMOVW, C_REG, C_NONE, C_LOREG, 30, 8, 0, LTO },
- { AMOVW, C_REG, C_NONE, C_ADDR, 64, 8, 0, LTO | LPCREL, 4 },
- { AMOVB, C_REG, C_NONE, C_LAUTO, 30, 8, REGSP, LTO },
- { AMOVB, C_REG, C_NONE, C_LOREG, 30, 8, 0, LTO },
- { AMOVB, C_REG, C_NONE, C_ADDR, 64, 8, 0, LTO | LPCREL, 4 },
- { AMOVBS, C_REG, C_NONE, C_LAUTO, 30, 8, REGSP, LTO },
- { AMOVBS, C_REG, C_NONE, C_LOREG, 30, 8, 0, LTO },
- { AMOVBS, C_REG, C_NONE, C_ADDR, 64, 8, 0, LTO | LPCREL, 4 },
- { AMOVBU, C_REG, C_NONE, C_LAUTO, 30, 8, REGSP, LTO },
- { AMOVBU, C_REG, C_NONE, C_LOREG, 30, 8, 0, LTO },
- { AMOVBU, C_REG, C_NONE, C_ADDR, 64, 8, 0, LTO | LPCREL, 4 },
-
- { AMOVW, C_LAUTO,C_NONE, C_REG, 31, 8, REGSP, LFROM },
- { AMOVW, C_LOREG,C_NONE, C_REG, 31, 8, 0, LFROM },
- { AMOVW, C_ADDR, C_NONE, C_REG, 65, 8, 0, LFROM | LPCREL, 4 },
- { AMOVBU, C_LAUTO,C_NONE, C_REG, 31, 8, REGSP, LFROM },
- { AMOVBU, C_LOREG,C_NONE, C_REG, 31, 8, 0, LFROM },
- { AMOVBU, C_ADDR, C_NONE, C_REG, 65, 8, 0, LFROM | LPCREL, 4 },
-
- { AMOVW, C_LACON,C_NONE, C_REG, 34, 8, REGSP, LFROM },
-
- { AMOVW, C_PSR, C_NONE, C_REG, 35, 4, 0 },
- { AMOVW, C_REG, C_NONE, C_PSR, 36, 4, 0 },
- { AMOVW, C_RCON, C_NONE, C_PSR, 37, 4, 0 },
-
- { AMOVM, C_LCON, C_NONE, C_SOREG, 38, 4, 0 },
- { AMOVM, C_SOREG,C_NONE, C_LCON, 39, 4, 0 },
-
- { ASWPW, C_SOREG,C_REG, C_REG, 40, 4, 0 },
-
- { ARFE, C_NONE, C_NONE, C_NONE, 41, 4, 0 },
-
- { AMOVF, C_FREG, C_NONE, C_FAUTO, 50, 4, REGSP },
- { AMOVF, C_FREG, C_NONE, C_FOREG, 50, 4, 0 },
-
- { AMOVF, C_FAUTO,C_NONE, C_FREG, 51, 4, REGSP },
- { AMOVF, C_FOREG,C_NONE, C_FREG, 51, 4, 0 },
-
- { AMOVF, C_FREG, C_NONE, C_LAUTO, 52, 12, REGSP, LTO },
- { AMOVF, C_FREG, C_NONE, C_LOREG, 52, 12, 0, LTO },
-
- { AMOVF, C_LAUTO,C_NONE, C_FREG, 53, 12, REGSP, LFROM },
- { AMOVF, C_LOREG,C_NONE, C_FREG, 53, 12, 0, LFROM },
-
- { AMOVF, C_FREG, C_NONE, C_ADDR, 68, 8, 0, LTO | LPCREL, 4 },
- { AMOVF, C_ADDR, C_NONE, C_FREG, 69, 8, 0, LFROM | LPCREL, 4},
-
- { AADDF, C_FREG, C_NONE, C_FREG, 54, 4, 0 },
- { AADDF, C_FREG, C_REG, C_FREG, 54, 4, 0 },
- { AMOVF, C_FREG, C_NONE, C_FREG, 54, 4, 0 },
-
- { AMOVW, C_REG, C_NONE, C_FCR, 56, 4, 0 },
- { AMOVW, C_FCR, C_NONE, C_REG, 57, 4, 0 },
-
- { AMOVW, C_SHIFT,C_NONE, C_REG, 59, 4, 0 },
- { AMOVBU, C_SHIFT,C_NONE, C_REG, 59, 4, 0 },
-
- { AMOVB, C_SHIFT,C_NONE, C_REG, 60, 4, 0 },
- { AMOVBS, C_SHIFT,C_NONE, C_REG, 60, 4, 0 },
-
- { AMOVW, C_REG, C_NONE, C_SHIFT, 61, 4, 0 },
- { AMOVB, C_REG, C_NONE, C_SHIFT, 61, 4, 0 },
- { AMOVBS, C_REG, C_NONE, C_SHIFT, 61, 4, 0 },
- { AMOVBU, C_REG, C_NONE, C_SHIFT, 61, 4, 0 },
-
- { ACASE, C_REG, C_NONE, C_NONE, 62, 4, 0, LPCREL, 8 },
- { ABCASE, C_NONE, C_NONE, C_SBRA, 63, 4, 0, LPCREL, 0 },
-
- { AMOVH, C_REG, C_NONE, C_HAUTO, 70, 4, REGSP, 0 },
- { AMOVH, C_REG, C_NONE, C_HOREG, 70, 4, 0, 0 },
- { AMOVHS, C_REG, C_NONE, C_HAUTO, 70, 4, REGSP, 0 },
- { AMOVHS, C_REG, C_NONE, C_HOREG, 70, 4, 0, 0 },
- { AMOVHU, C_REG, C_NONE, C_HAUTO, 70, 4, REGSP, 0 },
- { AMOVHU, C_REG, C_NONE, C_HOREG, 70, 4, 0, 0 },
-
- { AMOVB, C_HAUTO,C_NONE, C_REG, 71, 4, REGSP, 0 },
- { AMOVB, C_HOREG,C_NONE, C_REG, 71, 4, 0, 0 },
- { AMOVBS, C_HAUTO,C_NONE, C_REG, 71, 4, REGSP, 0 },
- { AMOVBS, C_HOREG,C_NONE, C_REG, 71, 4, 0, 0 },
- { AMOVH, C_HAUTO,C_NONE, C_REG, 71, 4, REGSP, 0 },
- { AMOVH, C_HOREG,C_NONE, C_REG, 71, 4, 0, 0 },
- { AMOVHS, C_HAUTO,C_NONE, C_REG, 71, 4, REGSP, 0 },
- { AMOVHS, C_HOREG,C_NONE, C_REG, 71, 4, 0, 0 },
- { AMOVHU, C_HAUTO,C_NONE, C_REG, 71, 4, REGSP, 0 },
- { AMOVHU, C_HOREG,C_NONE, C_REG, 71, 4, 0, 0 },
-
- { AMOVH, C_REG, C_NONE, C_LAUTO, 72, 8, REGSP, LTO },
- { AMOVH, C_REG, C_NONE, C_LOREG, 72, 8, 0, LTO },
- { AMOVH, C_REG, C_NONE, C_ADDR, 94, 8, 0, LTO | LPCREL, 4 },
- { AMOVHS, C_REG, C_NONE, C_LAUTO, 72, 8, REGSP, LTO },
- { AMOVHS, C_REG, C_NONE, C_LOREG, 72, 8, 0, LTO },
- { AMOVHS, C_REG, C_NONE, C_ADDR, 94, 8, 0, LTO | LPCREL, 4 },
- { AMOVHU, C_REG, C_NONE, C_LAUTO, 72, 8, REGSP, LTO },
- { AMOVHU, C_REG, C_NONE, C_LOREG, 72, 8, 0, LTO },
- { AMOVHU, C_REG, C_NONE, C_ADDR, 94, 8, 0, LTO | LPCREL, 4 },
-
- { AMOVB, C_LAUTO,C_NONE, C_REG, 73, 8, REGSP, LFROM },
- { AMOVB, C_LOREG,C_NONE, C_REG, 73, 8, 0, LFROM },
- { AMOVB, C_ADDR, C_NONE, C_REG, 93, 8, 0, LFROM | LPCREL, 4 },
- { AMOVBS, C_LAUTO,C_NONE, C_REG, 73, 8, REGSP, LFROM },
- { AMOVBS, C_LOREG,C_NONE, C_REG, 73, 8, 0, LFROM },
- { AMOVBS, C_ADDR, C_NONE, C_REG, 93, 8, 0, LFROM | LPCREL, 4 },
- { AMOVH, C_LAUTO,C_NONE, C_REG, 73, 8, REGSP, LFROM },
- { AMOVH, C_LOREG,C_NONE, C_REG, 73, 8, 0, LFROM },
- { AMOVH, C_ADDR, C_NONE, C_REG, 93, 8, 0, LFROM | LPCREL, 4 },
- { AMOVHS, C_LAUTO,C_NONE, C_REG, 73, 8, REGSP, LFROM },
- { AMOVHS, C_LOREG,C_NONE, C_REG, 73, 8, 0, LFROM },
- { AMOVHS, C_ADDR, C_NONE, C_REG, 93, 8, 0, LFROM | LPCREL, 4 },
- { AMOVHU, C_LAUTO,C_NONE, C_REG, 73, 8, REGSP, LFROM },
- { AMOVHU, C_LOREG,C_NONE, C_REG, 73, 8, 0, LFROM },
- { AMOVHU, C_ADDR, C_NONE, C_REG, 93, 8, 0, LFROM | LPCREL, 4 },
-
- { ALDREX, C_SOREG,C_NONE, C_REG, 77, 4, 0 },
- { ASTREX, C_SOREG,C_REG, C_REG, 78, 4, 0 },
-
- { AMOVF, C_ZFCON,C_NONE, C_FREG, 80, 8, 0 },
- { AMOVF, C_SFCON,C_NONE, C_FREG, 81, 4, 0 },
-
- { ACMPF, C_FREG, C_REG, C_NONE, 82, 8, 0 },
- { ACMPF, C_FREG, C_NONE, C_NONE, 83, 8, 0 },
-
- { AMOVFW, C_FREG, C_NONE, C_FREG, 84, 4, 0 },
- { AMOVWF, C_FREG, C_NONE, C_FREG, 85, 4, 0 },
-
- { AMOVFW, C_FREG, C_NONE, C_REG, 86, 8, 0 },
- { AMOVWF, C_REG, C_NONE, C_FREG, 87, 8, 0 },
-
- { AMOVW, C_REG, C_NONE, C_FREG, 88, 4, 0 },
- { AMOVW, C_FREG, C_NONE, C_REG, 89, 4, 0 },
-
- { ATST, C_REG, C_NONE, C_NONE, 90, 4, 0 },
-
- { ALDREXD, C_SOREG,C_NONE, C_REG, 91, 4, 0 },
- { ASTREXD, C_SOREG,C_REG, C_REG, 92, 4, 0 },
-
- { APLD, C_SOREG,C_NONE, C_NONE, 95, 4, 0 },
-
- { AUNDEF, C_NONE, C_NONE, C_NONE, 96, 4, 0 },
-
- { ACLZ, C_REG, C_NONE, C_REG, 97, 4, 0 },
-
- { AMULWT, C_REG, C_REG, C_REG, 98, 4, 0 },
- { AMULAWT, C_REG, C_REG, C_REGREG2, 99, 4, 0 },
-
- { AUSEFIELD, C_ADDR, C_NONE, C_NONE, 0, 0, 0 },
- { APCDATA, C_LCON, C_NONE, C_LCON, 0, 0, 0 },
- { AFUNCDATA, C_LCON, C_NONE, C_ADDR, 0, 0, 0 },
-
- { AXXX, C_NONE, C_NONE, C_NONE, 0, 4, 0 },
-};
diff --git a/src/cmd/5l/pass.c b/src/cmd/5l/pass.c
deleted file mode 100644
index cd8897989..000000000
--- a/src/cmd/5l/pass.c
+++ /dev/null
@@ -1,409 +0,0 @@
-// Inferno utils/5l/pass.c
-// http://code.google.com/p/inferno-os/source/browse/utils/5l/pass.c
-//
-// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
-// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
-// Portions Copyright © 1997-1999 Vita Nuova Limited
-// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
-// Portions Copyright © 2004,2006 Bruce Ellis
-// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
-// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
-// Portions Copyright © 2009 The Go Authors. All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-// Code and data passes.
-
-#include "l.h"
-#include "../ld/lib.h"
-
-static void xfol(Prog*, Prog**);
-
-Prog*
-brchain(Prog *p)
-{
- int i;
-
- for(i=0; i<20; i++) {
- if(p == P || p->as != AB)
- return p;
- p = p->cond;
- }
- return P;
-}
-
-int
-relinv(int a)
-{
- switch(a) {
- case ABEQ: return ABNE;
- case ABNE: return ABEQ;
- case ABCS: return ABCC;
- case ABHS: return ABLO;
- case ABCC: return ABCS;
- case ABLO: return ABHS;
- case ABMI: return ABPL;
- case ABPL: return ABMI;
- case ABVS: return ABVC;
- case ABVC: return ABVS;
- case ABHI: return ABLS;
- case ABLS: return ABHI;
- case ABGE: return ABLT;
- case ABLT: return ABGE;
- case ABGT: return ABLE;
- case ABLE: return ABGT;
- }
- diag("unknown relation: %s", anames[a]);
- return a;
-}
-
-void
-follow(void)
-{
- Prog *firstp, *lastp;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f follow\n", cputime());
- Bflush(&bso);
-
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- firstp = prg();
- lastp = firstp;
- xfol(cursym->text, &lastp);
- lastp->link = nil;
- cursym->text = firstp->link;
- }
-}
-
-static void
-xfol(Prog *p, Prog **last)
-{
- Prog *q, *r;
- int a, i;
-
-loop:
- if(p == P)
- return;
- a = p->as;
- if(a == AB) {
- q = p->cond;
- if(q != P && q->as != ATEXT) {
- p->mark |= FOLL;
- p = q;
- if(!(p->mark & FOLL))
- goto loop;
- }
- }
- if(p->mark & FOLL) {
- for(i=0,q=p; i<4; i++,q=q->link) {
- if(q == *last || q == nil)
- break;
- a = q->as;
- if(a == ANOP) {
- i--;
- continue;
- }
- if(a == AB || (a == ARET && q->scond == 14) || a == ARFE || a == AUNDEF)
- goto copy;
- if(q->cond == P || (q->cond->mark&FOLL))
- continue;
- if(a != ABEQ && a != ABNE)
- continue;
- copy:
- for(;;) {
- r = prg();
- *r = *p;
- if(!(r->mark&FOLL))
- print("can't happen 1\n");
- r->mark |= FOLL;
- if(p != q) {
- p = p->link;
- (*last)->link = r;
- *last = r;
- continue;
- }
- (*last)->link = r;
- *last = r;
- if(a == AB || (a == ARET && q->scond == 14) || a == ARFE || a == AUNDEF)
- return;
- r->as = ABNE;
- if(a == ABNE)
- r->as = ABEQ;
- r->cond = p->link;
- r->link = p->cond;
- if(!(r->link->mark&FOLL))
- xfol(r->link, last);
- if(!(r->cond->mark&FOLL))
- print("can't happen 2\n");
- return;
- }
- }
- a = AB;
- q = prg();
- q->as = a;
- q->line = p->line;
- q->to.type = D_BRANCH;
- q->to.offset = p->pc;
- q->cond = p;
- p = q;
- }
- p->mark |= FOLL;
- (*last)->link = p;
- *last = p;
- if(a == AB || (a == ARET && p->scond == 14) || a == ARFE || a == AUNDEF){
- return;
- }
- if(p->cond != P)
- if(a != ABL && a != ABX && p->link != P) {
- q = brchain(p->link);
- if(a != ATEXT && a != ABCASE)
- if(q != P && (q->mark&FOLL)) {
- p->as = relinv(a);
- p->link = p->cond;
- p->cond = q;
- }
- xfol(p->link, last);
- q = brchain(p->cond);
- if(q == P)
- q = p->cond;
- if(q->mark&FOLL) {
- p->cond = q;
- return;
- }
- p = q;
- goto loop;
- }
- p = p->link;
- goto loop;
-}
-
-void
-patch(void)
-{
- int32 c, vexit;
- Prog *p, *q;
- Sym *s;
- int a;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f patch\n", cputime());
- Bflush(&bso);
- mkfwd();
- s = lookup("exit", 0);
- vexit = s->value;
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- for(p = cursym->text; p != P; p = p->link) {
- a = p->as;
- if((a == ABL || a == ABX || a == AB || a == ARET) &&
- p->to.type != D_BRANCH && p->to.sym != S) {
- s = p->to.sym;
- if(s->text == nil)
- continue;
- switch(s->type&SMASK) {
- default:
- diag("undefined: %s", s->name);
- s->type = STEXT;
- s->value = vexit;
- continue; // avoid more error messages
- case STEXT:
- p->to.offset = s->value;
- p->to.type = D_BRANCH;
- p->cond = s->text;
- continue;
- }
- }
- if(p->to.type != D_BRANCH)
- continue;
- c = p->to.offset;
- for(q = cursym->text; q != P;) {
- if(c == q->pc)
- break;
- if(q->forwd != P && c >= q->forwd->pc)
- q = q->forwd;
- else
- q = q->link;
- }
- if(q == P) {
- diag("branch out of range %d\n%P", c, p);
- p->to.type = D_NONE;
- }
- p->cond = q;
- }
- }
- if(flag_shared) {
- s = lookup("init_array", 0);
- s->type = SINITARR;
- s->reachable = 1;
- s->hide = 1;
- addaddr(s, lookup(INITENTRY, 0));
- }
-
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- for(p = cursym->text; p != P; p = p->link) {
- if(p->cond != P) {
- p->cond = brloop(p->cond);
- if(p->cond != P)
- if(p->to.type == D_BRANCH)
- p->to.offset = p->cond->pc;
- }
- }
- }
-}
-
-Prog*
-brloop(Prog *p)
-{
- Prog *q;
- int c;
-
- for(c=0; p!=P;) {
- if(p->as != AB)
- return p;
- q = p->cond;
- if(q <= p) {
- c++;
- if(q == p || c > 5000)
- break;
- }
- p = q;
- }
- return P;
-}
-
-int32
-atolwhex(char *s)
-{
- int32 n;
- int f;
-
- n = 0;
- f = 0;
- while(*s == ' ' || *s == '\t')
- s++;
- if(*s == '-' || *s == '+') {
- if(*s++ == '-')
- f = 1;
- while(*s == ' ' || *s == '\t')
- s++;
- }
- if(s[0]=='0' && s[1]){
- if(s[1]=='x' || s[1]=='X'){
- s += 2;
- for(;;){
- if(*s >= '0' && *s <= '9')
- n = n*16 + *s++ - '0';
- else if(*s >= 'a' && *s <= 'f')
- n = n*16 + *s++ - 'a' + 10;
- else if(*s >= 'A' && *s <= 'F')
- n = n*16 + *s++ - 'A' + 10;
- else
- break;
- }
- } else
- while(*s >= '0' && *s <= '7')
- n = n*8 + *s++ - '0';
- } else
- while(*s >= '0' && *s <= '9')
- n = n*10 + *s++ - '0';
- if(f)
- n = -n;
- return n;
-}
-
-int32
-rnd(int32 v, int32 r)
-{
- int32 c;
-
- if(r <= 0)
- return v;
- v += r - 1;
- c = v % r;
- if(c < 0)
- c += r;
- v -= c;
- return v;
-}
-
-void
-dozerostk(void)
-{
- Prog *p, *pl;
- int32 autoffset;
-
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- if(cursym->text == nil || cursym->text->link == nil)
- continue;
- p = cursym->text;
- autoffset = p->to.offset;
- if(autoffset < 0)
- autoffset = 0;
- if(autoffset && !(p->reg&NOSPLIT)) {
- // MOVW $4(R13), R1
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_CONST;
- p->from.reg = 13;
- p->from.offset = 4;
- p->to.type = D_REG;
- p->to.reg = 1;
-
- // MOVW $n(R13), R2
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_CONST;
- p->from.reg = 13;
- p->from.offset = 4 + autoffset;
- p->to.type = D_REG;
- p->to.reg = 2;
-
- // MOVW $0, R3
- p = appendp(p);
- p->as = AMOVW;
- p->from.type = D_CONST;
- p->from.offset = 0;
- p->to.type = D_REG;
- p->to.reg = 3;
-
- // L:
- // MOVW.P R3, 0(R1) +4
- // CMP R1, R2
- // BNE L
- p = pl = appendp(p);
- p->as = AMOVW;
- p->from.type = D_REG;
- p->from.reg = 3;
- p->to.type = D_OREG;
- p->to.reg = 1;
- p->to.offset = 4;
- p->scond |= C_PBIT;
-
- p = appendp(p);
- p->as = ACMP;
- p->from.type = D_REG;
- p->from.reg = 1;
- p->reg = 2;
-
- p = appendp(p);
- p->as = ABNE;
- p->to.type = D_BRANCH;
- p->cond = pl;
- }
- }
-}
diff --git a/src/cmd/5l/prof.c b/src/cmd/5l/prof.c
deleted file mode 100644
index 225a52435..000000000
--- a/src/cmd/5l/prof.c
+++ /dev/null
@@ -1,211 +0,0 @@
-// Inferno utils/5l/obj.c
-// http://code.google.com/p/inferno-os/source/browse/utils/5l/obj.c
-//
-// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
-// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
-// Portions Copyright © 1997-1999 Vita Nuova Limited
-// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
-// Portions Copyright © 2004,2006 Bruce Ellis
-// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
-// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
-// Portions Copyright © 2009 The Go Authors. All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-// Profiling.
-
-#include "l.h"
-#include "../ld/lib.h"
-
-void
-doprof1(void)
-{
-#ifdef NOTDEF // TODO(rsc)
- Sym *s;
- int32 n;
- Prog *p, *q;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f profile 1\n", cputime());
- Bflush(&bso);
- s = lookup("__mcount", 0);
- n = 1;
- for(p = firstp->link; p != P; p = p->link) {
- if(p->as == ATEXT) {
- q = prg();
- q->line = p->line;
- q->link = datap;
- datap = q;
- q->as = ADATA;
- q->from.type = D_OREG;
- q->from.name = D_EXTERN;
- q->from.offset = n*4;
- q->from.sym = s;
- q->reg = 4;
- q->to = p->from;
- q->to.type = D_CONST;
-
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = AMOVW;
- p->from.type = D_OREG;
- p->from.name = D_EXTERN;
- p->from.sym = s;
- p->from.offset = n*4 + 4;
- p->to.type = D_REG;
- p->to.reg = REGTMP;
-
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = AADD;
- p->from.type = D_CONST;
- p->from.offset = 1;
- p->to.type = D_REG;
- p->to.reg = REGTMP;
-
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = AMOVW;
- p->from.type = D_REG;
- p->from.reg = REGTMP;
- p->to.type = D_OREG;
- p->to.name = D_EXTERN;
- p->to.sym = s;
- p->to.offset = n*4 + 4;
-
- n += 2;
- continue;
- }
- }
- q = prg();
- q->line = 0;
- q->link = datap;
- datap = q;
-
- q->as = ADATA;
- q->from.type = D_OREG;
- q->from.name = D_EXTERN;
- q->from.sym = s;
- q->reg = 4;
- q->to.type = D_CONST;
- q->to.offset = n;
-
- s->type = SBSS;
- s->value = n*4;
-#endif
-}
-
-void
-doprof2(void)
-{
- Sym *s2, *s4;
- Prog *p, *q, *ps2, *ps4;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f profile 2\n", cputime());
- Bflush(&bso);
- s2 = lookup("_profin", 0);
- s4 = lookup("_profout", 0);
- if(s2->type != STEXT || s4->type != STEXT) {
- diag("_profin/_profout not defined");
- return;
- }
- ps2 = P;
- ps4 = P;
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- p = cursym->text;
- if(cursym == s2) {
- ps2 = p;
- p->reg = 1;
- }
- if(cursym == s4) {
- ps4 = p;
- p->reg = 1;
- }
- }
- for(cursym = textp; cursym != nil; cursym = cursym->next)
- for(p = cursym->text; p != P; p = p->link) {
- if(p->as == ATEXT) {
- if(p->reg & NOPROF) {
- for(;;) {
- q = p->link;
- if(q == P)
- break;
- if(q->as == ATEXT)
- break;
- p = q;
- }
- continue;
- }
-
- /*
- * BL profin, R2
- */
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = ABL;
- p->to.type = D_BRANCH;
- p->cond = ps2;
- p->to.sym = s2;
-
- continue;
- }
- if(p->as == ARET) {
- /*
- * RET
- */
- q = prg();
- q->as = ARET;
- q->from = p->from;
- q->to = p->to;
- q->link = p->link;
- p->link = q;
-
- /*
- * BL profout
- */
- p->as = ABL;
- p->from = zprg.from;
- p->to = zprg.to;
- p->to.type = D_BRANCH;
- p->cond = ps4;
- p->to.sym = s4;
-
- p = q;
-
- continue;
- }
- }
-}
diff --git a/src/cmd/5l/softfloat.c b/src/cmd/5l/softfloat.c
deleted file mode 100644
index de6481c71..000000000
--- a/src/cmd/5l/softfloat.c
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#include "l.h"
-#include "../ld/lib.h"
-
-// Software floating point.
-
-void
-softfloat(void)
-{
- Prog *p, *next, *psfloat;
- Sym *symsfloat;
- int wasfloat;
-
- if(!debug['F'])
- return;
-
- symsfloat = lookup("_sfloat", 0);
- psfloat = P;
- if(symsfloat->type == STEXT)
- psfloat = symsfloat->text;
-
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- wasfloat = 0;
- for(p = cursym->text; p != P; p = p->link)
- if(p->cond != P)
- p->cond->mark |= LABEL;
- for(p = cursym->text; p != P; p = p->link) {
- switch(p->as) {
- case AMOVW:
- if(p->to.type == D_FREG || p->from.type == D_FREG)
- goto soft;
- goto notsoft;
-
- case AMOVWD:
- case AMOVWF:
- case AMOVDW:
- case AMOVFW:
- case AMOVFD:
- case AMOVDF:
- case AMOVF:
- case AMOVD:
-
- case ACMPF:
- case ACMPD:
- case AADDF:
- case AADDD:
- case ASUBF:
- case ASUBD:
- case AMULF:
- case AMULD:
- case ADIVF:
- case ADIVD:
- case ASQRTF:
- case ASQRTD:
- case AABSF:
- case AABSD:
- goto soft;
-
- default:
- goto notsoft;
-
- soft:
- if (psfloat == P)
- diag("floats used with _sfloat not defined");
- if (!wasfloat || (p->mark&LABEL)) {
- next = prg();
- *next = *p;
-
- // BL _sfloat(SB)
- *p = zprg;
- p->link = next;
- p->as = ABL;
- p->to.type = D_BRANCH;
- p->to.sym = symsfloat;
- p->cond = psfloat;
- p->line = next->line;
-
- p = next;
- wasfloat = 1;
- }
- break;
-
- notsoft:
- wasfloat = 0;
- }
- }
- }
-}
diff --git a/src/cmd/5l/span.c b/src/cmd/5l/span.c
deleted file mode 100644
index e7cc0b4b1..000000000
--- a/src/cmd/5l/span.c
+++ /dev/null
@@ -1,937 +0,0 @@
-// Inferno utils/5l/span.c
-// http://code.google.com/p/inferno-os/source/browse/utils/5l/span.c
-//
-// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
-// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
-// Portions Copyright © 1997-1999 Vita Nuova Limited
-// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
-// Portions Copyright © 2004,2006 Bruce Ellis
-// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
-// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
-// Portions Copyright © 2009 The Go Authors. All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-// Instruction layout.
-
-#include "l.h"
-#include "../ld/lib.h"
-
-static struct {
- uint32 start;
- uint32 size;
- uint32 extra;
-} pool;
-
-int checkpool(Prog*, int);
-int flushpool(Prog*, int, int);
-
-int
-isbranch(Prog *p)
-{
- int as = p->as;
- return (as >= ABEQ && as <= ABLE) || as == AB || as == ABL || as == ABX;
-}
-
-static int
-scan(Prog *op, Prog *p, int c)
-{
- Prog *q;
-
- for(q = op->link; q != p && q != P; q = q->link){
- q->pc = c;
- c += oplook(q)->size;
- nocache(q);
- }
- return c;
-}
-
-/* size of a case statement including jump table */
-static int32
-casesz(Prog *p)
-{
- int jt = 0;
- int32 n = 0;
- Optab *o;
-
- for( ; p != P; p = p->link){
- if(p->as == ABCASE)
- jt = 1;
- else if(jt)
- break;
- o = oplook(p);
- n += o->size;
- }
- return n;
-}
-
-void
-span(void)
-{
- Prog *p, *op;
- Optab *o;
- int m, bflag, i, v;
- int32 c, otxt, out[6];
- Section *sect;
- uchar *bp;
- Sym *sub, *gmsym;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f span\n", cputime());
- Bflush(&bso);
-
- sect = addsection(&segtext, ".text", 05);
- lookup("text", 0)->sect = sect;
- lookup("etext", 0)->sect = sect;
-
- bflag = 0;
- c = INITTEXT;
- otxt = c;
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- cursym->sect = sect;
- p = cursym->text;
- if(p == P || p->link == P) { // handle external functions and ELF section symbols
- if(cursym->type & SSUB)
- continue;
- if(cursym->align != 0)
- c = rnd(c, cursym->align);
- cursym->value = 0;
- for(sub = cursym; sub != S; sub = sub->sub) {
- sub->value += c;
- for(p = sub->text; p != P; p = p->link)
- p->pc += sub->value;
- }
- c += cursym->size;
- continue;
- }
- p->pc = c;
- cursym->value = c;
-
- autosize = p->to.offset + 4;
- if(p->from.sym != S)
- p->from.sym->value = c;
- /* need passes to resolve branches */
- if(c-otxt >= 1L<<17)
- bflag = 1;
- otxt = c;
-
- for(op = p, p = p->link; p != P; op = p, p = p->link) {
- curp = p;
- p->pc = c;
- o = oplook(p);
- m = o->size;
- // must check literal pool here in case p generates many instructions
- if(blitrl){
- if(checkpool(op, p->as == ACASE ? casesz(p) : m))
- c = p->pc = scan(op, p, c);
- }
- if(m == 0 && (p->as != AFUNCDATA && p->as != APCDATA)) {
- diag("zero-width instruction\n%P", p);
- continue;
- }
- switch(o->flag & (LFROM|LTO|LPOOL)) {
- case LFROM:
- addpool(p, &p->from);
- break;
- case LTO:
- addpool(p, &p->to);
- break;
- case LPOOL:
- if ((p->scond&C_SCOND) == 14)
- flushpool(p, 0, 0);
- break;
- }
- if(p->as==AMOVW && p->to.type==D_REG && p->to.reg==REGPC && (p->scond&C_SCOND) == 14)
- flushpool(p, 0, 0);
- c += m;
- }
- if(blitrl){
- if(checkpool(op, 0))
- c = scan(op, P, c);
- }
- cursym->size = c - cursym->value;
- }
-
- /*
- * if any procedure is large enough to
- * generate a large SBRA branch, then
- * generate extra passes putting branches
- * around jmps to fix. this is rare.
- */
- while(bflag) {
- if(debug['v'])
- Bprint(&bso, "%5.2f span1\n", cputime());
- bflag = 0;
- c = INITTEXT;
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- if(!cursym->text || !cursym->text->link)
- continue;
- cursym->value = c;
- for(p = cursym->text; p != P; p = p->link) {
- curp = p;
- p->pc = c;
- o = oplook(p);
-/* very large branches
- if(o->type == 6 && p->cond) {
- otxt = p->cond->pc - c;
- if(otxt < 0)
- otxt = -otxt;
- if(otxt >= (1L<<17) - 10) {
- q = prg();
- q->link = p->link;
- p->link = q;
- q->as = AB;
- q->to.type = D_BRANCH;
- q->cond = p->cond;
- p->cond = q;
- q = prg();
- q->link = p->link;
- p->link = q;
- q->as = AB;
- q->to.type = D_BRANCH;
- q->cond = q->link->link;
- bflag = 1;
- }
- }
- */
- m = o->size;
- if(m == 0 && (p->as != AFUNCDATA && p->as != APCDATA)) {
- if(p->as == ATEXT) {
- autosize = p->to.offset + 4;
- if(p->from.sym != S)
- p->from.sym->value = c;
- continue;
- }
- diag("zero-width instruction\n%P", p);
- continue;
- }
- c += m;
- }
- cursym->size = c - cursym->value;
- }
- }
-
- c = rnd(c, 8);
-
- /*
- * lay out the code. all the pc-relative code references,
- * even cross-function, are resolved now;
- * only data references need to be relocated.
- * with more work we could leave cross-function
- * code references to be relocated too, and then
- * perhaps we'd be able to parallelize the span loop above.
- */
- gmsym = S;
- if(linkmode == LinkExternal)
- gmsym = lookup("runtime.tlsgm", 0);
- for(cursym = textp; cursym != nil; cursym = cursym->next) {
- p = cursym->text;
- if(p == P || p->link == P)
- continue;
- autosize = p->to.offset + 4;
- symgrow(cursym, cursym->size);
-
- bp = cursym->p;
- for(p = p->link; p != P; p = p->link) {
- pc = p->pc;
- curp = p;
- o = oplook(p);
- asmout(p, o, out, gmsym);
- for(i=0; i<o->size/4; i++) {
- v = out[i];
- *bp++ = v;
- *bp++ = v>>8;
- *bp++ = v>>16;
- *bp++ = v>>24;
- }
- }
- }
- sect->vaddr = INITTEXT;
- sect->len = c - INITTEXT;
-}
-
-/*
- * when the first reference to the literal pool threatens
- * to go out of range of a 12-bit PC-relative offset,
- * drop the pool now, and branch round it.
- * this happens only in extended basic blocks that exceed 4k.
- */
-int
-checkpool(Prog *p, int sz)
-{
- if(pool.size >= 0xffc || immaddr((p->pc+sz+4)+4+pool.size - pool.start+8) == 0)
- return flushpool(p, 1, 0);
- else if(p->link == P)
- return flushpool(p, 2, 0);
- return 0;
-}
-
-int
-flushpool(Prog *p, int skip, int force)
-{
- Prog *q;
-
- if(blitrl) {
- if(skip){
- if(0 && skip==1)print("note: flush literal pool at %ux: len=%ud ref=%ux\n", p->pc+4, pool.size, pool.start);
- q = prg();
- q->as = AB;
- q->to.type = D_BRANCH;
- q->cond = p->link;
- q->link = blitrl;
- q->line = p->line;
- blitrl = q;
- }
- else if(!force && (p->pc+pool.size-pool.start < 2048))
- return 0;
- elitrl->link = p->link;
- p->link = blitrl;
- // BUG(minux): how to correctly handle line number for constant pool entries?
- // for now, we set line number to the last instruction preceding them at least
- // this won't bloat the .debug_line tables
- while(blitrl) {
- blitrl->line = p->line;
- blitrl = blitrl->link;
- }
- blitrl = 0; /* BUG: should refer back to values until out-of-range */
- elitrl = 0;
- pool.size = 0;
- pool.start = 0;
- pool.extra = 0;
- return 1;
- }
- return 0;
-}
-
-void
-addpool(Prog *p, Adr *a)
-{
- Prog *q, t;
- int c;
-
- c = aclass(a);
-
- t = zprg;
- t.as = AWORD;
-
- switch(c) {
- default:
- t.to = *a;
- if(flag_shared && t.to.sym != S)
- t.pcrel = p;
- break;
-
- case C_SROREG:
- case C_LOREG:
- case C_ROREG:
- case C_FOREG:
- case C_SOREG:
- case C_HOREG:
- case C_FAUTO:
- case C_SAUTO:
- case C_LAUTO:
- case C_LACON:
- t.to.type = D_CONST;
- t.to.offset = instoffset;
- break;
- }
-
- if(t.pcrel == P) {
- for(q = blitrl; q != P; q = q->link) /* could hash on t.t0.offset */
- if(q->pcrel == P && memcmp(&q->to, &t.to, sizeof(t.to)) == 0) {
- p->cond = q;
- return;
- }
- }
-
- q = prg();
- *q = t;
- q->pc = pool.size;
-
- if(blitrl == P) {
- blitrl = q;
- pool.start = p->pc;
- q->align = 4;
- } else
- elitrl->link = q;
- elitrl = q;
- pool.size += 4;
-
- p->cond = q;
-}
-
-void
-xdefine(char *p, int t, int32 v)
-{
- Sym *s;
-
- s = lookup(p, 0);
- s->type = t;
- s->value = v;
- s->reachable = 1;
- s->special = 1;
-}
-
-int32
-regoff(Adr *a)
-{
-
- instoffset = 0;
- aclass(a);
- return instoffset;
-}
-
-int32
-immrot(uint32 v)
-{
- int i;
-
- for(i=0; i<16; i++) {
- if((v & ~0xff) == 0)
- return (i<<8) | v | (1<<25);
- v = (v<<2) | (v>>30);
- }
- return 0;
-}
-
-int32
-immaddr(int32 v)
-{
- if(v >= 0 && v <= 0xfff)
- return (v & 0xfff) |
- (1<<24) | /* pre indexing */
- (1<<23); /* pre indexing, up */
- if(v >= -0xfff && v < 0)
- return (-v & 0xfff) |
- (1<<24); /* pre indexing */
- return 0;
-}
-
-int
-immfloat(int32 v)
-{
- return (v & 0xC03) == 0; /* offset will fit in floating-point load/store */
-}
-
-int
-immhalf(int32 v)
-{
- if(v >= 0 && v <= 0xff)
- return v|
- (1<<24)| /* pre indexing */
- (1<<23); /* pre indexing, up */
- if(v >= -0xff && v < 0)
- return (-v & 0xff)|
- (1<<24); /* pre indexing */
- return 0;
-}
-
-int32
-symaddr(Sym *s)
-{
- if(!s->reachable)
- diag("unreachable symbol in symaddr - %s", s->name);
- return s->value;
-}
-
-int
-aclass(Adr *a)
-{
- Sym *s;
- int t;
-
- switch(a->type) {
- case D_NONE:
- return C_NONE;
-
- case D_REG:
- return C_REG;
-
- case D_REGREG:
- return C_REGREG;
-
- case D_REGREG2:
- return C_REGREG2;
-
- case D_SHIFT:
- return C_SHIFT;
-
- case D_FREG:
- return C_FREG;
-
- case D_FPCR:
- return C_FCR;
-
- case D_OREG:
- switch(a->name) {
- case D_EXTERN:
- case D_STATIC:
- if(a->sym == 0 || a->sym->name == 0) {
- print("null sym external\n");
- print("%D\n", a);
- return C_GOK;
- }
- instoffset = 0; // s.b. unused but just in case
- return C_ADDR;
-
- case D_AUTO:
- instoffset = autosize + a->offset;
- t = immaddr(instoffset);
- if(t){
- if(immhalf(instoffset))
- return immfloat(t) ? C_HFAUTO : C_HAUTO;
- if(immfloat(t))
- return C_FAUTO;
- return C_SAUTO;
- }
- return C_LAUTO;
-
- case D_PARAM:
- instoffset = autosize + a->offset + 4L;
- t = immaddr(instoffset);
- if(t){
- if(immhalf(instoffset))
- return immfloat(t) ? C_HFAUTO : C_HAUTO;
- if(immfloat(t))
- return C_FAUTO;
- return C_SAUTO;
- }
- return C_LAUTO;
- case D_NONE:
- instoffset = a->offset;
- t = immaddr(instoffset);
- if(t) {
- if(immhalf(instoffset)) /* n.b. that it will also satisfy immrot */
- return immfloat(t) ? C_HFOREG : C_HOREG;
- if(immfloat(t))
- return C_FOREG; /* n.b. that it will also satisfy immrot */
- t = immrot(instoffset);
- if(t)
- return C_SROREG;
- if(immhalf(instoffset))
- return C_HOREG;
- return C_SOREG;
- }
- t = immrot(instoffset);
- if(t)
- return C_ROREG;
- return C_LOREG;
- }
- return C_GOK;
-
- case D_PSR:
- return C_PSR;
-
- case D_OCONST:
- switch(a->name) {
- case D_EXTERN:
- case D_STATIC:
- instoffset = 0; // s.b. unused but just in case
- return C_ADDR;
- }
- return C_GOK;
-
- case D_FCONST:
- if(chipzero(&a->ieee) >= 0)
- return C_ZFCON;
- if(chipfloat(&a->ieee) >= 0)
- return C_SFCON;
- return C_LFCON;
-
- case D_CONST:
- case D_CONST2:
- switch(a->name) {
-
- case D_NONE:
- instoffset = a->offset;
- if(a->reg != NREG)
- goto aconsize;
-
- t = immrot(instoffset);
- if(t)
- return C_RCON;
- t = immrot(~instoffset);
- if(t)
- return C_NCON;
- return C_LCON;
-
- case D_EXTERN:
- case D_STATIC:
- s = a->sym;
- if(s == S)
- break;
- instoffset = 0; // s.b. unused but just in case
- return C_LCONADDR;
-
- case D_AUTO:
- instoffset = autosize + a->offset;
- goto aconsize;
-
- case D_PARAM:
- instoffset = autosize + a->offset + 4L;
- aconsize:
- t = immrot(instoffset);
- if(t)
- return C_RACON;
- return C_LACON;
- }
- return C_GOK;
-
- case D_BRANCH:
- return C_SBRA;
- }
- return C_GOK;
-}
-
-Optab*
-oplook(Prog *p)
-{
- int a1, a2, a3, r;
- char *c1, *c3;
- Optab *o, *e;
-
- a1 = p->optab;
- if(a1)
- return optab+(a1-1);
- a1 = p->from.class;
- if(a1 == 0) {
- a1 = aclass(&p->from) + 1;
- p->from.class = a1;
- }
- a1--;
- a3 = p->to.class;
- if(a3 == 0) {
- a3 = aclass(&p->to) + 1;
- p->to.class = a3;
- }
- a3--;
- a2 = C_NONE;
- if(p->reg != NREG)
- a2 = C_REG;
- r = p->as;
- o = oprange[r].start;
- if(o == 0) {
- a1 = opcross[repop[r]][a1][a2][a3];
- if(a1) {
- p->optab = a1+1;
- return optab+a1;
- }
- o = oprange[r].stop; /* just generate an error */
- }
- if(debug['O']) {
- print("oplook %A %O %O %O\n",
- (int)p->as, a1, a2, a3);
- print(" %d %d\n", p->from.type, p->to.type);
- }
- e = oprange[r].stop;
- c1 = xcmp[a1];
- c3 = xcmp[a3];
- for(; o<e; o++)
- if(o->a2 == a2)
- if(c1[o->a1])
- if(c3[o->a3]) {
- p->optab = (o-optab)+1;
- return o;
- }
- diag("illegal combination %A %O %O %O, %d %d",
- p->as, a1, a2, a3, p->from.type, p->to.type);
- prasm(p);
- if(o == 0)
- o = optab;
- return o;
-}
-
-int
-cmp(int a, int b)
-{
-
- if(a == b)
- return 1;
- switch(a) {
- case C_LCON:
- if(b == C_RCON || b == C_NCON)
- return 1;
- break;
- case C_LACON:
- if(b == C_RACON)
- return 1;
- break;
- case C_LFCON:
- if(b == C_ZFCON || b == C_SFCON)
- return 1;
- break;
-
- case C_HFAUTO:
- return b == C_HAUTO || b == C_FAUTO;
- case C_FAUTO:
- case C_HAUTO:
- return b == C_HFAUTO;
- case C_SAUTO:
- return cmp(C_HFAUTO, b);
- case C_LAUTO:
- return cmp(C_SAUTO, b);
-
- case C_HFOREG:
- return b == C_HOREG || b == C_FOREG;
- case C_FOREG:
- case C_HOREG:
- return b == C_HFOREG;
- case C_SROREG:
- return cmp(C_SOREG, b) || cmp(C_ROREG, b);
- case C_SOREG:
- case C_ROREG:
- return b == C_SROREG || cmp(C_HFOREG, b);
- case C_LOREG:
- return cmp(C_SROREG, b);
-
- case C_LBRA:
- if(b == C_SBRA)
- return 1;
- break;
-
- case C_HREG:
- return cmp(C_SP, b) || cmp(C_PC, b);
-
- }
- return 0;
-}
-
-int
-ocmp(const void *a1, const void *a2)
-{
- Optab *p1, *p2;
- int n;
-
- p1 = (Optab*)a1;
- p2 = (Optab*)a2;
- n = p1->as - p2->as;
- if(n)
- return n;
- n = p1->a1 - p2->a1;
- if(n)
- return n;
- n = p1->a2 - p2->a2;
- if(n)
- return n;
- n = p1->a3 - p2->a3;
- if(n)
- return n;
- return 0;
-}
-
-void
-buildop(void)
-{
- int i, n, r;
-
- for(i=0; i<C_GOK; i++)
- for(n=0; n<C_GOK; n++)
- xcmp[i][n] = cmp(n, i);
- for(n=0; optab[n].as != AXXX; n++) {
- if((optab[n].flag & LPCREL) != 0) {
- if(flag_shared)
- optab[n].size += optab[n].pcrelsiz;
- else
- optab[n].flag &= ~LPCREL;
- }
- }
- qsort(optab, n, sizeof(optab[0]), ocmp);
- for(i=0; i<n; i++) {
- r = optab[i].as;
- oprange[r].start = optab+i;
- while(optab[i].as == r)
- i++;
- oprange[r].stop = optab+i;
- i--;
-
- switch(r)
- {
- default:
- diag("unknown op in build: %A", r);
- errorexit();
- case AADD:
- oprange[AAND] = oprange[r];
- oprange[AEOR] = oprange[r];
- oprange[ASUB] = oprange[r];
- oprange[ARSB] = oprange[r];
- oprange[AADC] = oprange[r];
- oprange[ASBC] = oprange[r];
- oprange[ARSC] = oprange[r];
- oprange[AORR] = oprange[r];
- oprange[ABIC] = oprange[r];
- break;
- case ACMP:
- oprange[ATEQ] = oprange[r];
- oprange[ACMN] = oprange[r];
- break;
- case AMVN:
- break;
- case ABEQ:
- oprange[ABNE] = oprange[r];
- oprange[ABCS] = oprange[r];
- oprange[ABHS] = oprange[r];
- oprange[ABCC] = oprange[r];
- oprange[ABLO] = oprange[r];
- oprange[ABMI] = oprange[r];
- oprange[ABPL] = oprange[r];
- oprange[ABVS] = oprange[r];
- oprange[ABVC] = oprange[r];
- oprange[ABHI] = oprange[r];
- oprange[ABLS] = oprange[r];
- oprange[ABGE] = oprange[r];
- oprange[ABLT] = oprange[r];
- oprange[ABGT] = oprange[r];
- oprange[ABLE] = oprange[r];
- break;
- case ASLL:
- oprange[ASRL] = oprange[r];
- oprange[ASRA] = oprange[r];
- break;
- case AMUL:
- oprange[AMULU] = oprange[r];
- break;
- case ADIV:
- oprange[AMOD] = oprange[r];
- oprange[AMODU] = oprange[r];
- oprange[ADIVU] = oprange[r];
- break;
- case AMOVW:
- case AMOVB:
- case AMOVBS:
- case AMOVBU:
- case AMOVH:
- case AMOVHS:
- case AMOVHU:
- break;
- case ASWPW:
- oprange[ASWPBU] = oprange[r];
- break;
- case AB:
- case ABL:
- case ABX:
- case ABXRET:
- case ASWI:
- case AWORD:
- case AMOVM:
- case ARFE:
- case ATEXT:
- case AUSEFIELD:
- case ACASE:
- case ABCASE:
- case ATYPE:
- break;
- case AADDF:
- oprange[AADDD] = oprange[r];
- oprange[ASUBF] = oprange[r];
- oprange[ASUBD] = oprange[r];
- oprange[AMULF] = oprange[r];
- oprange[AMULD] = oprange[r];
- oprange[ADIVF] = oprange[r];
- oprange[ADIVD] = oprange[r];
- oprange[ASQRTF] = oprange[r];
- oprange[ASQRTD] = oprange[r];
- oprange[AMOVFD] = oprange[r];
- oprange[AMOVDF] = oprange[r];
- oprange[AABSF] = oprange[r];
- oprange[AABSD] = oprange[r];
- break;
-
- case ACMPF:
- oprange[ACMPD] = oprange[r];
- break;
-
- case AMOVF:
- oprange[AMOVD] = oprange[r];
- break;
-
- case AMOVFW:
- oprange[AMOVDW] = oprange[r];
- break;
-
- case AMOVWF:
- oprange[AMOVWD] = oprange[r];
- break;
-
- case AMULL:
- oprange[AMULAL] = oprange[r];
- oprange[AMULLU] = oprange[r];
- oprange[AMULALU] = oprange[r];
- break;
-
- case AMULWT:
- oprange[AMULWB] = oprange[r];
- break;
-
- case AMULAWT:
- oprange[AMULAWB] = oprange[r];
- break;
-
- case AMULA:
- case ALDREX:
- case ASTREX:
- case ALDREXD:
- case ASTREXD:
- case ATST:
- case APLD:
- case AUNDEF:
- case ACLZ:
- case AFUNCDATA:
- case APCDATA:
- break;
- }
- }
-}
-
-/*
-void
-buildrep(int x, int as)
-{
- Opcross *p;
- Optab *e, *s, *o;
- int a1, a2, a3, n;
-
- if(C_NONE != 0 || C_REG != 1 || C_GOK >= 32 || x >= nelem(opcross)) {
- diag("assumptions fail in buildrep");
- errorexit();
- }
- repop[as] = x;
- p = (opcross + x);
- s = oprange[as].start;
- e = oprange[as].stop;
- for(o=e-1; o>=s; o--) {
- n = o-optab;
- for(a2=0; a2<2; a2++) {
- if(a2) {
- if(o->a2 == C_NONE)
- continue;
- } else
- if(o->a2 != C_NONE)
- continue;
- for(a1=0; a1<32; a1++) {
- if(!xcmp[a1][o->a1])
- continue;
- for(a3=0; a3<32; a3++)
- if(xcmp[a3][o->a3])
- (*p)[a1][a2][a3] = n;
- }
- }
- }
- oprange[as].start = 0;
-}
-*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 00:29:44 +0000