// 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);
}
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);
}