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// Inferno utils/6l/list.c
// http://code.google.com/p/inferno-os/source/browse/utils/6l/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 "l.h"
#include "../ld/lib.h"
static Prog* bigP;
void
listinit(void)
{
fmtinstall('R', Rconv);
fmtinstall('A', Aconv);
fmtinstall('D', Dconv);
fmtinstall('S', Sconv);
fmtinstall('P', Pconv);
}
int
Pconv(Fmt *fp)
{
char str[STRINGSZ], str1[STRINGSZ];
Prog *p;
p = va_arg(fp->args, Prog*);
if(p == P)
return fmtstrcpy(fp, "<P>");
bigP = p;
snprint(str1, sizeof(str1), "(%ld)", p->line);
switch(p->as) {
case ATEXT:
if(p->from.scale) {
snprint(str, sizeof(str), "%-7s %-7A %D,%d,%lD",
str1, p->as, &p->from, p->from.scale, &p->to);
break;
}
snprint(str, sizeof(str), "%-7s %-7A %D,%lD",
str1, p->as, &p->from, &p->to);
break;
default:
snprint(str, sizeof(str), "%-7s %-7A %D,%D",
str1, p->as, &p->from, &p->to);
break;
case ADATA:
case AINIT:
case ADYNT:
snprint(str, sizeof(str), "%-7s %-7A %D/%d,%D",
str1, p->as, &p->from, p->from.scale, &p->to);
break;
}
bigP = P;
return fmtstrcpy(fp, str);
}
int
Aconv(Fmt *fp)
{
int i;
i = va_arg(fp->args, int);
return fmtstrcpy(fp, anames[i]);
}
int
Dconv(Fmt *fp)
{
char str[40], s[20];
Adr *a;
int i;
a = va_arg(fp->args, Adr*);
i = a->type;
if(fp->flags & FmtLong) {
if(i != D_CONST) {
// ATEXT dst is not constant
snprint(str, sizeof(str), "!!%D", a);
goto brk;
}
parsetextconst(a->offset);
if(textarg == 0) {
snprint(str, sizeof(str), "$%lld", textstksiz);
goto brk;
}
snprint(str, sizeof(str), "$%lld-%lld", textstksiz, textarg);
goto brk;
}
if(i >= D_INDIR) {
if(a->offset)
snprint(str, sizeof(str), "%lld(%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), "$%lld,%R", a->offset, i);
else
snprint(str, sizeof(str), "%R", i);
break;
case D_NONE:
str[0] = 0;
break;
case D_BRANCH:
if(bigP != P && bigP->pcond != P)
if(a->sym != S)
snprint(str, sizeof(str), "%llux+%s", bigP->pcond->pc,
a->sym->name);
else
snprint(str, sizeof(str), "%llux", bigP->pcond->pc);
else
snprint(str, sizeof(str), "%lld(PC)", a->offset);
break;
case D_EXTERN:
if(a->sym) {
snprint(str, sizeof(str), "%s+%lld(SB)", a->sym->name, a->offset);
break;
}
snprint(str, sizeof(str), "!!noname!!+%lld(SB)", a->offset);
break;
case D_STATIC:
if(a->sym) {
snprint(str, sizeof(str), "%s<%d>+%lld(SB)", a->sym->name,
a->sym->version, a->offset);
break;
}
snprint(str, sizeof(str), "!!noname!!<999>+%lld(SB)", a->offset);
break;
case D_AUTO:
if(a->sym) {
snprint(str, sizeof(str), "%s+%lld(SP)", a->sym->name, a->offset);
break;
}
snprint(str, sizeof(str), "!!noname!!+%lld(SP)", a->offset);
break;
case D_PARAM:
if(a->sym) {
snprint(str, sizeof(str), "%s+%lld(%s)", a->sym->name, a->offset, paramspace);
break;
}
snprint(str, sizeof(str), "!!noname!!+%lld(%s)", a->offset, paramspace);
break;
case D_CONST:
snprint(str, sizeof(str), "$%lld", a->offset);
break;
case D_FCONST:
snprint(str, sizeof(str), "$(%.8lux,%.8lux)", a->ieee.h, a->ieee.l);
break;
case D_SCONST:
snprint(str, sizeof(str), "$\"%S\"", a->scon);
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)", a->index, a->scale);
strcat(str, s);
}
conv:
fmtstrcpy(fp, str);
// if(a->gotype)
// fmtprint(fp, "«%s»", a->gotype->name);
return 0;
}
char* regstr[] =
{
"AL", /* [D_AL] */
"CL",
"DL",
"BL",
"SPB",
"BPB",
"SIB",
"DIB",
"R8B",
"R9B",
"R10B",
"R11B",
"R12B",
"R13B",
"R14B",
"R15B",
"AX", /* [D_AX] */
"CX",
"DX",
"BX",
"SP",
"BP",
"SI",
"DI",
"R8",
"R9",
"R10",
"R11",
"R12",
"R13",
"R14",
"R15",
"AH",
"CH",
"DH",
"BH",
"F0", /* [D_F0] */
"F1",
"F2",
"F3",
"F4",
"F5",
"F6",
"F7",
"M0",
"M1",
"M2",
"M3",
"M4",
"M5",
"M6",
"M7",
"X0",
"X1",
"X2",
"X3",
"X4",
"X5",
"X6",
"X7",
"X8",
"X9",
"X10",
"X11",
"X12",
"X13",
"X14",
"X15",
"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",
"CR8",
"CR9",
"CR10",
"CR11",
"CR12",
"CR13",
"CR14",
"CR15",
"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[20];
int r;
r = va_arg(fp->args, int);
if(r >= D_AL && r <= D_NONE)
snprint(str, sizeof(str), "%s", regstr[r-D_AL]);
else
snprint(str, sizeof(str), "gok(%d)", r);
return fmtstrcpy(fp, str);
}
int
Sconv(Fmt *fp)
{
int i, c;
char str[30], *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);
}
void
diag(char *fmt, ...)
{
char buf[STRINGSZ], *tn;
va_list arg;
tn = "??none??";
if(curtext != P && curtext->from.sym != S)
tn = curtext->from.sym->name;
va_start(arg, fmt);
vseprint(buf, buf+sizeof(buf), fmt, arg);
va_end(arg);
print("%s: %s\n", tn, buf);
nerrors++;
if(nerrors > 20) {
print("too many errors\n");
errorexit();
}
}
void
parsetextconst(vlong arg)
{
textstksiz = arg & 0xffffffffLL;
if(textstksiz & 0x80000000LL)
textstksiz = -(-textstksiz & 0xffffffffLL);
textarg = (arg >> 32) & 0xffffffffLL;
if(textarg & 0x80000000LL)
textarg = 0;
textarg = (textarg+7) & ~7LL;
}