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Diffstat (limited to 'src/cmd/8g/list.c')
| -rw-r--r-- | src/cmd/8g/list.c | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/src/cmd/8g/list.c b/src/cmd/8g/list.c new file mode 100644 index 000000000..edb1ece84 --- /dev/null +++ b/src/cmd/8g/list.c @@ -0,0 +1,302 @@ +// Derived from Inferno utils/8c/list.c +// http://code.google.com/p/inferno-os/source/browse/utils/8c/list.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 "gg.h" + +static int sconsize; +void +listinit(void) +{ + + fmtinstall('A', Aconv); // as + fmtinstall('P', Pconv); // Prog* + fmtinstall('D', Dconv); // Addr* + fmtinstall('R', Rconv); // reg + fmtinstall('Y', Yconv); // sconst +} + +int +Pconv(Fmt *fp) +{ + char str[STRINGSZ]; + Prog *p; + char scale[40]; + + p = va_arg(fp->args, Prog*); + sconsize = 8; + scale[0] = '\0'; + if(p->from.scale != 0 && (p->as == AGLOBL || p->as == ATEXT)) + snprint(scale, sizeof scale, "%d,", p->from.scale); + switch(p->as) { + default: + snprint(str, sizeof(str), "%.4d (%L) %-7A %D,%s%D", + p->loc, p->lineno, p->as, &p->from, scale, &p->to); + break; + + case ADATA: + sconsize = p->from.scale; + snprint(str, sizeof(str), "%.4d (%L) %-7A %D/%d,%D", + p->loc, p->lineno, p->as, &p->from, sconsize, &p->to); + break; + + case ATEXT: + snprint(str, sizeof(str), "%.4d (%L) %-7A %D,%s%lD", + p->loc, p->lineno, p->as, &p->from, scale, &p->to); + break; + } + return fmtstrcpy(fp, str); +} + +int +Dconv(Fmt *fp) +{ + char str[STRINGSZ], s[STRINGSZ]; + Addr *a; + int i; + uint32 d1, d2; + + a = va_arg(fp->args, Addr*); + i = a->type; + if(i >= D_INDIR) { + if(a->offset) + snprint(str, sizeof(str), "%d(%R)", a->offset, i-D_INDIR); + else + snprint(str, sizeof(str), "(%R)", i-D_INDIR); + goto brk; + } + switch(i) { + + default: + if(a->offset) + snprint(str, sizeof(str), "$%d,%R", a->offset, i); + else + snprint(str, sizeof(str), "%R", i); + break; + + case D_NONE: + str[0] = 0; + break; + + case D_BRANCH: + snprint(str, sizeof(str), "%d", a->branch->loc); + break; + + case D_EXTERN: + snprint(str, sizeof(str), "%S+%d(SB)", a->sym, a->offset); + break; + + case D_STATIC: + snprint(str, sizeof(str), "%S<>+%d(SB)", a->sym, a->offset); + break; + + case D_AUTO: + snprint(str, sizeof(str), "%S+%d(SP)", a->sym, a->offset); + break; + + case D_PARAM: + snprint(str, sizeof(str), "%S+%d(FP)", a->sym, a->offset); + break; + + case D_CONST: + if(fp->flags & FmtLong) { + d1 = a->offset; + d2 = a->offset2; + snprint(str, sizeof(str), "$%ud-%ud", (ulong)d1, (ulong)d2); + break; + } + snprint(str, sizeof(str), "$%d", a->offset); + break; + + case D_FCONST: + snprint(str, sizeof(str), "$(%.17e)", a->dval); + break; + + case D_SCONST: + snprint(str, sizeof(str), "$\"%Y\"", a->sval); + break; + + case D_ADDR: + a->type = a->index; + a->index = D_NONE; + snprint(str, sizeof(str), "$%D", a); + a->index = a->type; + a->type = D_ADDR; + goto conv; + } +brk: + if(a->index != D_NONE) { + snprint(s, sizeof(s), "(%R*%d)", (int)a->index, (int)a->scale); + strcat(str, s); + } +conv: + return fmtstrcpy(fp, str); +} + +static char* regstr[] = +{ + "AL", /* [D_AL] */ + "CL", + "DL", + "BL", + + "AH", /* [D_AH] */ + "CH", + "DH", + "BH", + + "AX", /* [D_AX] */ + "CX", + "DX", + "BX", + "SP", + "BP", + "SI", + "DI", + + "F0", /* [D_F0] */ + "F1", + "F2", + "F3", + "F4", + "F5", + "F6", + "F7", + + "CS", /* [D_CS] */ + "SS", + "DS", + "ES", + "FS", + "GS", + + "GDTR", /* [D_GDTR] */ + "IDTR", /* [D_IDTR] */ + "LDTR", /* [D_LDTR] */ + "MSW", /* [D_MSW] */ + "TASK", /* [D_TASK] */ + + "CR0", /* [D_CR] */ + "CR1", + "CR2", + "CR3", + "CR4", + "CR5", + "CR6", + "CR7", + + "DR0", /* [D_DR] */ + "DR1", + "DR2", + "DR3", + "DR4", + "DR5", + "DR6", + "DR7", + + "TR0", /* [D_TR] */ + "TR1", + "TR2", + "TR3", + "TR4", + "TR5", + "TR6", + "TR7", + + "NONE", /* [D_NONE] */ +}; + +int +Rconv(Fmt *fp) +{ + char str[STRINGSZ]; + int r; + + r = va_arg(fp->args, int); + if(r < 0 || r >= nelem(regstr) || regstr[r] == nil) { + snprint(str, sizeof(str), "BAD_R(%d)", r); + return fmtstrcpy(fp, str); + } + return fmtstrcpy(fp, regstr[r]); +} + +int +Aconv(Fmt *fp) +{ + int i; + + i = va_arg(fp->args, int); + return fmtstrcpy(fp, anames[i]); +} + + +int +Yconv(Fmt *fp) +{ + int i, c; + char str[STRINGSZ], *p, *a; + + a = va_arg(fp->args, char*); + p = str; + for(i=0; i<sconsize; i++) { + c = a[i] & 0xff; + if((c >= 'a' && c <= 'z') || + (c >= 'A' && c <= 'Z') || + (c >= '0' && c <= '9')) { + *p++ = c; + continue; + } + *p++ = '\\'; + switch(c) { + default: + if(c < 040 || c >= 0177) + break; /* not portable */ + p[-1] = c; + continue; + 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); +} |