diff options
author | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
---|---|---|
committer | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
commit | 8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1 (patch) | |
tree | 4449f2036cccf162e8417cc5841a35815b3e7ac5 /src/cmd/5g/gobj.c | |
parent | c8bf49ef8a92e2337b69c14b9b88396efe498600 (diff) | |
download | golang-upstream/1.3.tar.gz |
Imported Upstream version 1.3upstream/1.3
Diffstat (limited to 'src/cmd/5g/gobj.c')
-rw-r--r-- | src/cmd/5g/gobj.c | 264 |
1 files changed, 7 insertions, 257 deletions
diff --git a/src/cmd/5g/gobj.c b/src/cmd/5g/gobj.c index 212ffc271..5e988878f 100644 --- a/src/cmd/5g/gobj.c +++ b/src/cmd/5g/gobj.c @@ -32,235 +32,6 @@ #include <libc.h> #include "gg.h" -void -zname(Biobuf *b, Sym *s, int t) -{ - BPUTC(b, ANAME); /* as */ - BPUTC(b, t); /* type */ - BPUTC(b, s->sym); /* sym */ - - Bputname(b, s); -} - -void -zfile(Biobuf *b, char *p, int n) -{ - BPUTC(b, ANAME); - BPUTC(b, D_FILE); - BPUTC(b, 1); - BPUTC(b, '<'); - Bwrite(b, p, n); - BPUTC(b, 0); -} - -void -zhist(Biobuf *b, int line, vlong offset) -{ - Addr a; - - BPUTC(b, AHISTORY); - BPUTC(b, C_SCOND_NONE); - BPUTC(b, NREG); - BPUTLE4(b, line); - zaddr(b, &zprog.from, 0, 0); - a = zprog.to; - if(offset != 0) { - a.offset = offset; - a.type = D_CONST; - } - zaddr(b, &a, 0, 0); -} - -void -zaddr(Biobuf *b, Addr *a, int s, int gotype) -{ - int32 l; - uint64 e; - int i; - char *n; - - switch(a->type) { - case D_STATIC: - case D_AUTO: - case D_EXTERN: - case D_PARAM: - // TODO(kaib): remove once everything seems to work - fatal("We should no longer generate these as types"); - - default: - BPUTC(b, a->type); - BPUTC(b, a->reg); - BPUTC(b, s); - BPUTC(b, a->name); - BPUTC(b, gotype); - } - - switch(a->type) { - default: - print("unknown type %d in zaddr\n", a->type); - - case D_NONE: - case D_REG: - case D_FREG: - case D_PSR: - break; - - case D_CONST2: - l = a->offset2; - BPUTLE4(b, l); // fall through - case D_OREG: - case D_CONST: - case D_SHIFT: - case D_STATIC: - case D_AUTO: - case D_EXTERN: - case D_PARAM: - l = a->offset; - BPUTLE4(b, l); - break; - - case D_BRANCH: - if(a->u.branch == nil) - fatal("unpatched branch"); - a->offset = a->u.branch->loc; - l = a->offset; - BPUTLE4(b, l); - break; - - case D_SCONST: - n = a->u.sval; - for(i=0; i<NSNAME; i++) { - BPUTC(b, *n); - n++; - } - break; - - case D_REGREG: - case D_REGREG2: - BPUTC(b, a->offset); - break; - - case D_FCONST: - ieeedtod(&e, a->u.dval); - BPUTLE4(b, e); - BPUTLE4(b, e >> 32); - break; - } -} - -static struct { - struct { Sym *sym; short type; } h[NSYM]; - int sym; -} z; - -static void -zsymreset(void) -{ - for(z.sym=0; z.sym<NSYM; z.sym++) { - z.h[z.sym].sym = S; - z.h[z.sym].type = 0; - } - z.sym = 1; -} - -static int -zsym(Sym *s, int t, int *new) -{ - int i; - - *new = 0; - if(s == S) - return 0; - - i = s->sym; - if(i < 0 || i >= NSYM) - i = 0; - if(z.h[i].type == t && z.h[i].sym == s) - return i; - i = z.sym; - s->sym = i; - zname(bout, s, t); - z.h[i].sym = s; - z.h[i].type = t; - if(++z.sym >= NSYM) - z.sym = 1; - *new = 1; - return i; -} - -static int -zsymaddr(Addr *a, int *new) -{ - int t; - - t = a->name; - if(t == D_ADDR) - t = a->name; - return zsym(a->sym, t, new); -} - -void -dumpfuncs(void) -{ - Plist *pl; - int sf, st, gf, gt, new; - Sym *s; - Prog *p; - - zsymreset(); - - // fix up pc - pcloc = 0; - for(pl=plist; pl!=nil; pl=pl->link) { - if(isblank(pl->name)) - continue; - for(p=pl->firstpc; p!=P; p=p->link) { - p->loc = pcloc; - if(p->as != ADATA && p->as != AGLOBL) - pcloc++; - } - } - - // put out functions - for(pl=plist; pl!=nil; pl=pl->link) { - if(isblank(pl->name)) - continue; - - // -S prints code; -SS prints code and data - if(debug['S'] && (pl->name || debug['S']>1)) { - s = S; - if(pl->name != N) - s = pl->name->sym; - print("\n--- prog list \"%S\" ---\n", s); - for(p=pl->firstpc; p!=P; p=p->link) - print("%P\n", p); - } - - for(p=pl->firstpc; p!=P; p=p->link) { - for(;;) { - sf = zsymaddr(&p->from, &new); - gf = zsym(p->from.gotype, D_EXTERN, &new); - if(new && sf == gf) - continue; - st = zsymaddr(&p->to, &new); - if(new && (st == sf || st == gf)) - continue; - gt = zsym(p->to.gotype, D_EXTERN, &new); - if(new && (gt == sf || gt == gf || gt == st)) - continue; - break; - } - - BPUTC(bout, p->as); - BPUTC(bout, p->scond); - BPUTC(bout, p->reg); - BPUTLE4(bout, p->lineno); - zaddr(bout, &p->from, sf, gf); - zaddr(bout, &p->to, st, gt); - } - } -} - int dsname(Sym *sym, int off, char *t, int n) { @@ -272,7 +43,7 @@ dsname(Sym *sym, int off, char *t, int n) p->from.etype = TINT32; p->from.offset = off; p->from.reg = NREG; - p->from.sym = sym; + p->from.sym = linksym(sym); p->reg = n; @@ -299,7 +70,7 @@ datastring(char *s, int len, Addr *a) a->etype = TINT32; a->offset = widthptr+4; // skip header a->reg = NREG; - a->sym = sym; + a->sym = linksym(sym); a->node = sym->def; } @@ -318,7 +89,7 @@ datagostring(Strlit *sval, Addr *a) a->etype = TINT32; a->offset = 0; // header a->reg = NREG; - a->sym = sym; + a->sym = linksym(sym); a->node = sym->def; } @@ -401,7 +172,7 @@ dstringptr(Sym *s, int off, char *str) p = gins(ADATA, N, N); p->from.type = D_OREG; p->from.name = D_EXTERN; - p->from.sym = s; + p->from.sym = linksym(s); p->from.offset = off; p->reg = widthptr; @@ -425,7 +196,7 @@ dgostrlitptr(Sym *s, int off, Strlit *lit) p = gins(ADATA, N, N); p->from.type = D_OREG; p->from.name = D_EXTERN; - p->from.sym = s; + p->from.sym = linksym(s); p->from.offset = off; p->reg = widthptr; datagostring(lit, &p->to); @@ -453,27 +224,6 @@ dgostringptr(Sym *s, int off, char *str) } int -duintxx(Sym *s, int off, uint64 v, int wid) -{ - Prog *p; - - off = rnd(off, wid); - - p = gins(ADATA, N, N); - p->from.type = D_OREG; - p->from.name = D_EXTERN; - p->from.sym = s; - p->from.offset = off; - p->reg = wid; - p->to.type = D_CONST; - p->to.name = D_NONE; - p->to.offset = v; - off += wid; - - return off; -} - -int dsymptr(Sym *s, int off, Sym *x, int xoff) { Prog *p; @@ -483,12 +233,12 @@ dsymptr(Sym *s, int off, Sym *x, int xoff) p = gins(ADATA, N, N); p->from.type = D_OREG; p->from.name = D_EXTERN; - p->from.sym = s; + p->from.sym = linksym(s); p->from.offset = off; p->reg = widthptr; p->to.type = D_CONST; p->to.name = D_EXTERN; - p->to.sym = x; + p->to.sym = linksym(x); p->to.offset = xoff; off += widthptr; |