| // 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 <u.h> |
| #include <libc.h> |
| #include <bio.h> |
| #include <link.h> |
| #include "../cmd/8l/8.out.h" |
| |
| static int Aconv(Fmt *fp); |
| static int Dconv(Fmt *fp); |
| static int Pconv(Fmt *fp); |
| static int Rconv(Fmt *fp); |
| static int DSconv(Fmt *fp); |
| |
| enum |
| { |
| STRINGSZ = 1000 |
| }; |
| |
| #pragma varargck type "$" char* |
| |
| void |
| listinit8(void) |
| { |
| fmtinstall('A', Aconv); |
| fmtinstall('D', Dconv); |
| fmtinstall('P', Pconv); |
| fmtinstall('R', Rconv); |
| |
| // for internal use |
| fmtinstall('$', DSconv); |
| } |
| |
| static Prog* bigP; |
| |
| static int |
| Pconv(Fmt *fp) |
| { |
| char str[STRINGSZ]; |
| Prog *p; |
| |
| p = va_arg(fp->args, Prog*); |
| bigP = p; |
| switch(p->as) { |
| case ADATA: |
| sprint(str, "%.5lld (%L) %A %D/%d,%D", |
| p->pc, p->lineno, p->as, &p->from, p->from.scale, &p->to); |
| break; |
| |
| case ATEXT: |
| if(p->from.scale) { |
| sprint(str, "%.5lld (%L) %A %D,%d,%lD", |
| p->pc, p->lineno, p->as, &p->from, p->from.scale, &p->to); |
| break; |
| } |
| sprint(str, "%.5lld (%L) %A %D,%lD", |
| p->pc, p->lineno, p->as, &p->from, &p->to); |
| break; |
| |
| default: |
| sprint(str, "%.5lld (%L) %A %D,%D", |
| p->pc, p->lineno, p->as, &p->from, &p->to); |
| break; |
| } |
| bigP = nil; |
| return fmtstrcpy(fp, str); |
| } |
| |
| static int |
| Aconv(Fmt *fp) |
| { |
| int i; |
| |
| i = va_arg(fp->args, int); |
| return fmtstrcpy(fp, anames8[i]); |
| } |
| |
| static int |
| Dconv(Fmt *fp) |
| { |
| char str[STRINGSZ], s[STRINGSZ]; |
| Addr *a; |
| int i; |
| |
| a = va_arg(fp->args, Addr*); |
| i = a->type; |
| |
| if(fp->flags & FmtLong) { |
| if(i == D_CONST2) |
| sprint(str, "$%lld-%d", a->offset, a->offset2); |
| else { |
| // ATEXT dst is not constant |
| sprint(str, "!!%D", a); |
| } |
| goto brk; |
| } |
| |
| if(i >= D_INDIR) { |
| if(a->offset) |
| sprint(str, "%lld(%R)", a->offset, i-D_INDIR); |
| else |
| sprint(str, "(%R)", i-D_INDIR); |
| goto brk; |
| } |
| switch(i) { |
| default: |
| if(a->offset) |
| sprint(str, "$%lld,%R", a->offset, i); |
| else |
| sprint(str, "%R", i); |
| break; |
| |
| case D_NONE: |
| str[0] = 0; |
| break; |
| |
| case D_BRANCH: |
| if(a->sym != nil) |
| sprint(str, "%s(SB)", a->sym->name); |
| else if(bigP != nil && bigP->pcond != nil) |
| sprint(str, "%lld", bigP->pcond->pc); |
| else if(a->u.branch != nil) |
| sprint(str, "%lld", a->u.branch->pc); |
| else |
| sprint(str, "%lld(PC)", a->offset); |
| break; |
| |
| case D_EXTERN: |
| sprint(str, "%s+%lld(SB)", a->sym->name, a->offset); |
| break; |
| |
| case D_STATIC: |
| sprint(str, "%s<>+%lld(SB)", a->sym->name, a->offset); |
| break; |
| |
| case D_AUTO: |
| if(a->sym) |
| sprint(str, "%s+%lld(SP)", a->sym->name, a->offset); |
| else |
| sprint(str, "%lld(SP)", a->offset); |
| break; |
| |
| case D_PARAM: |
| if(a->sym) |
| sprint(str, "%s+%lld(FP)", a->sym->name, a->offset); |
| else |
| sprint(str, "%lld(FP)", a->offset); |
| break; |
| |
| case D_CONST: |
| sprint(str, "$%lld", a->offset); |
| break; |
| |
| case D_CONST2: |
| if(!(fp->flags & FmtLong)) { |
| // D_CONST2 outside of ATEXT should not happen |
| sprint(str, "!!$%lld-%d", a->offset, a->offset2); |
| } |
| break; |
| |
| case D_FCONST: |
| sprint(str, "$(%.17g)", a->u.dval); |
| break; |
| |
| case D_SCONST: |
| sprint(str, "$\"%$\"", a->u.sval); |
| break; |
| |
| case D_ADDR: |
| a->type = a->index; |
| a->index = D_NONE; |
| sprint(str, "$%D", a); |
| a->index = a->type; |
| a->type = D_ADDR; |
| goto conv; |
| } |
| brk: |
| if(a->index != D_NONE) { |
| sprint(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", |
| "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", |
| |
| "X0", /* [D_X0] */ |
| "X1", |
| "X2", |
| "X3", |
| "X4", |
| "X5", |
| "X6", |
| "X7", |
| |
| "TLS", /* [D_TLS] */ |
| "NONE", /* [D_NONE] */ |
| }; |
| |
| static int |
| Rconv(Fmt *fp) |
| { |
| char str[STRINGSZ]; |
| int r; |
| |
| r = va_arg(fp->args, int); |
| if(r >= D_AL && r <= D_NONE) |
| sprint(str, "%s", regstr[r-D_AL]); |
| else |
| sprint(str, "gok(%d)", r); |
| |
| return fmtstrcpy(fp, str); |
| } |
| |
| static int |
| DSconv(Fmt *fp) |
| { |
| int i, c; |
| char str[STRINGSZ], *p, *a; |
| |
| a = va_arg(fp->args, char*); |
| p = str; |
| for(i=0; i<sizeof(double); 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); |
| } |