src/cmd/5c/list.c - go - Git at Google

 // Inferno utils/5c/list.c
 // http://code.google.com/p/inferno-os/source/browse/utils/5c/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.


 #define	EXTERN
 #include "gc.h"

 void
 listinit(void)
 {

 	fmtinstall('A', Aconv);
 	fmtinstall('P', Pconv);
 	fmtinstall('S', Sconv);
 	fmtinstall('N', Nconv);
 	fmtinstall('B', Bconv);
 	fmtinstall('D', Dconv);
 	fmtinstall('R', Rconv);
 }

 int
 Bconv(Fmt *fp)
 {
 	char str[STRINGSZ], ss[STRINGSZ], *s;
 	Bits bits;
 	int i;

 	str[0] = 0;
 	bits = va_arg(fp->args, Bits);
 	while(bany(&bits)) {
 		i = bnum(bits);
 		if(str[0])
 			strcat(str, " ");
 		if(var[i].sym == S) {
 			sprint(ss, "$%d", var[i].offset);
 			s = ss;
 		} else
 			s = var[i].sym->name;
 		if(strlen(str) + strlen(s) + 1 >= STRINGSZ)
 			break;
 		strcat(str, s);
 		bits.b[i/32] &= ~(1L << (i%32));
 	}
 	return fmtstrcpy(fp, str);
 }

 char *extra [] = {
 	".EQ", ".NE", ".CS", ".CC",
 	".MI", ".PL", ".VS", ".VC",
 	".HI", ".LS", ".GE", ".LT",
 	".GT", ".LE", "", ".NV",
 };

 int
 Pconv(Fmt *fp)
 {
 	char str[STRINGSZ], sc[20];
 	Prog *p;
 	int a, s;

 	p = va_arg(fp->args, Prog*);
 	a = p->as;
 	s = p->scond;
 	strcpy(sc, extra[s & C_SCOND]);
 	if(s & C_SBIT)
 		strcat(sc, ".S");
 	if(s & C_PBIT)
 		strcat(sc, ".P");
 	if(s & C_WBIT)
 		strcat(sc, ".W");
 	if(s & C_UBIT)		/* ambiguous with FBIT */
 		strcat(sc, ".U");
 	if(a == AMOVM) {
 		if(p->from.type == D_CONST)
 			sprint(str, "	%A%s	%R,%D", a, sc, &p->from, &p->to);
 		else
 		if(p->to.type == D_CONST)
 			sprint(str, "	%A%s	%D,%R", a, sc, &p->from, &p->to);
 		else
 			sprint(str, "	%A%s	%D,%D", a, sc, &p->from, &p->to);
 	} else
 	if(a == ADATA)
 		sprint(str, "	%A	%D/%d,%D", a, &p->from, p->reg, &p->to);
 	else
 	if(p->as == ATEXT)
 		sprint(str, "	%A	%D,%d,%D", a, &p->from, p->reg, &p->to);
 	else
 	if(p->reg == NREG)
 		sprint(str, "	%A%s	%D,%D", a, sc, &p->from, &p->to);
 	else
 	if(p->from.type != D_FREG)
 		sprint(str, "	%A%s	%D,R%d,%D", a, sc, &p->from, p->reg, &p->to);
 	else
 		sprint(str, "	%A%s	%D,F%d,%D", a, sc, &p->from, p->reg, &p->to);
 	return fmtstrcpy(fp, str);
 }

 int
 Aconv(Fmt *fp)
 {
 	char *s;
 	int a;

 	a = va_arg(fp->args, int);
 	s = "???";
 	if(a >= AXXX && a < ALAST)
 		s = anames[a];
 	return fmtstrcpy(fp, s);
 }

 int
 Dconv(Fmt *fp)
 {
 	char str[STRINGSZ];
 	Adr *a;
 	const char *op;
 	int v;

 	a = va_arg(fp->args, Adr*);
 	switch(a->type) {

 	default:
 		sprint(str, "GOK-type(%d)", a->type);
 		break;

 	case D_NONE:
 		str[0] = 0;
 		if(a->name != D_NONE || a->reg != NREG || a->sym != S)
 			sprint(str, "%N(R%d)(NONE)", a, a->reg);
 		break;

 	case D_CONST:
 		if(a->reg != NREG)
 			sprint(str, "$%N(R%d)", a, a->reg);
 		else
 			sprint(str, "$%N", a);
 		break;

 	case D_CONST2:
 		sprint(str, "$%d-%d", a->offset, a->offset2);
 		break;

 	case D_SHIFT:
 		v = a->offset;
 		op = &"<<>>->@>"[(((v>>5) & 3) << 1)];
 		if(v & (1<<4))
 			sprint(str, "R%d%c%cR%d", v&15, op[0], op[1], (v>>8)&15);
 		else
 			sprint(str, "R%d%c%c%d", v&15, op[0], op[1], (v>>7)&31);
 		if(a->reg != NREG)
 			sprint(str+strlen(str), "(R%d)", a->reg);
 		break;

 	case D_OREG:
 		if(a->reg != NREG)
 			sprint(str, "%N(R%d)", a, a->reg);
 		else
 			sprint(str, "%N", a);
 		break;

 	case D_REG:
 		sprint(str, "R%d", a->reg);
 		if(a->name != D_NONE || a->sym != S)
 			sprint(str, "%N(R%d)(REG)", a, a->reg);
 		break;

 	case D_FREG:
 		sprint(str, "F%d", a->reg);
 		if(a->name != D_NONE || a->sym != S)
 			sprint(str, "%N(R%d)(REG)", a, a->reg);
 		break;

 	case D_PSR:
 		sprint(str, "PSR");
 		if(a->name != D_NONE || a->sym != S)
 			sprint(str, "%N(PSR)(REG)", a);
 		break;

 	case D_BRANCH:
 		sprint(str, "%d(PC)", a->offset-pc);
 		break;

 	case D_FCONST:
 		sprint(str, "$%.17e", a->dval);
 		break;

 	case D_SCONST:
 		sprint(str, "$\"%S\"", a->sval);
 		break;
 	}
 	return fmtstrcpy(fp, str);
 }

 int
 Rconv(Fmt *fp)
 {
 	char str[STRINGSZ];
 	Adr *a;
 	int i, v;

 	a = va_arg(fp->args, Adr*);
 	sprint(str, "GOK-reglist");
 	switch(a->type) {
 	case D_CONST:
 	case D_CONST2:
 		if(a->reg != NREG)
 			break;
 		if(a->sym != S)
 			break;
 		v = a->offset;
 		strcpy(str, "");
 		for(i=0; i<NREG; i++) {
 			if(v & (1<<i)) {
 				if(str[0] == 0)
 					strcat(str, "[R");
 				else
 					strcat(str, ",R");
 				sprint(strchr(str, 0), "%d", i);
 			}
 		}
 		strcat(str, "]");
 	}
 	return fmtstrcpy(fp, str);
 }

 int
 Sconv(Fmt *fp)
 {
 	int i, c;
 	char str[STRINGSZ], *p, *a;

 	a = va_arg(fp->args, char*);
 	p = str;
 	for(i=0; i<NSNAME; i++) {
 		c = a[i] & 0xff;
 		if(c >= 'a' && c <= 'z' ||
 		   c >= 'A' && c <= 'Z' ||
 		   c >= '0' && c <= '9' ||
 		   c == ' ' || c == '%') {
 			*p++ = c;
 			continue;
 		}
 		*p++ = '\\';
 		switch(c) {
 		case 0:
 			*p++ = 'z';
 			continue;
 		case '\\':
 		case '"':
 			*p++ = c;
 			continue;
 		case '\n':
 			*p++ = 'n';
 			continue;
 		case '\t':
 			*p++ = 't';
 			continue;
 		case '\r':
 			*p++ = 'r';
 			continue;
 		case '\f':
 			*p++ = 'f';
 			continue;
 		}
 		*p++ = (c>>6) + '0';
 		*p++ = ((c>>3) & 7) + '0';
 		*p++ = (c & 7) + '0';
 	}
 	*p = 0;
 	return fmtstrcpy(fp, str);
 }

 int
 Nconv(Fmt *fp)
 {
 	char str[STRINGSZ];
 	Adr *a;
 	Sym *s;

 	a = va_arg(fp->args, Adr*);
 	s = a->sym;
 	if(s == S) {
 		sprint(str, "%d", a->offset);
 		goto out;
 	}
 	switch(a->name) {
 	default:
 		sprint(str, "GOK-name(%d)", a->name);
 		break;

 	case D_NONE:
 		sprint(str, "%d", a->offset);
 		break;

 	case D_EXTERN:
 		sprint(str, "%s+%d(SB)", s->name, a->offset);
 		break;

 	case D_STATIC:
 		sprint(str, "%s<>+%d(SB)", s->name, a->offset);
 		break;

 	case D_AUTO:
 		sprint(str, "%s-%d(SP)", s->name, -a->offset);
 		break;

 	case D_PARAM:
 		sprint(str, "%s+%d(FP)", s->name, a->offset);
 		break;
 	}
 out:
 	return fmtstrcpy(fp, str);
 }
	// Inferno utils/5c/list.c
	// http://code.google.com/p/inferno-os/source/browse/utils/5c/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.


	#define EXTERN
	#include "gc.h"

	void
	listinit(void)
	{

	fmtinstall('A', Aconv);
	fmtinstall('P', Pconv);
	fmtinstall('S', Sconv);
	fmtinstall('N', Nconv);
	fmtinstall('B', Bconv);
	fmtinstall('D', Dconv);
	fmtinstall('R', Rconv);
	}

	int
	Bconv(Fmt *fp)
	{
	char str[STRINGSZ], ss[STRINGSZ], *s;
	Bits bits;
	int i;

	str[0] = 0;
	bits = va_arg(fp->args, Bits);
	while(bany(&bits)) {
	i = bnum(bits);
	if(str[0])
	strcat(str, " ");
	if(var[i].sym == S) {
	sprint(ss, "$%d", var[i].offset);
	s = ss;
	} else
	s = var[i].sym->name;
	if(strlen(str) + strlen(s) + 1 >= STRINGSZ)
	break;
	strcat(str, s);
	bits.b[i/32] &= ~(1L << (i%32));
	}
	return fmtstrcpy(fp, str);
	}

	char *extra [] = {
	".EQ", ".NE", ".CS", ".CC",
	".MI", ".PL", ".VS", ".VC",
	".HI", ".LS", ".GE", ".LT",
	".GT", ".LE", "", ".NV",
	};

	int
	Pconv(Fmt *fp)
	{
	char str[STRINGSZ], sc[20];
	Prog *p;
	int a, s;

	p = va_arg(fp->args, Prog*);
	a = p->as;
	s = p->scond;
	strcpy(sc, extra[s & C_SCOND]);
	if(s & C_SBIT)
	strcat(sc, ".S");
	if(s & C_PBIT)
	strcat(sc, ".P");
	if(s & C_WBIT)
	strcat(sc, ".W");
	if(s & C_UBIT) /* ambiguous with FBIT */
	strcat(sc, ".U");
	if(a == AMOVM) {
	if(p->from.type == D_CONST)
	sprint(str, " %A%s %R,%D", a, sc, &p->from, &p->to);
	else
	if(p->to.type == D_CONST)
	sprint(str, " %A%s %D,%R", a, sc, &p->from, &p->to);
	else
	sprint(str, " %A%s %D,%D", a, sc, &p->from, &p->to);
	} else
	if(a == ADATA)
	sprint(str, " %A %D/%d,%D", a, &p->from, p->reg, &p->to);
	else
	if(p->as == ATEXT)
	sprint(str, " %A %D,%d,%D", a, &p->from, p->reg, &p->to);
	else
	if(p->reg == NREG)
	sprint(str, " %A%s %D,%D", a, sc, &p->from, &p->to);
	else
	if(p->from.type != D_FREG)
	sprint(str, " %A%s %D,R%d,%D", a, sc, &p->from, p->reg, &p->to);
	else
	sprint(str, " %A%s %D,F%d,%D", a, sc, &p->from, p->reg, &p->to);
	return fmtstrcpy(fp, str);
	}

	int
	Aconv(Fmt *fp)
	{
	char *s;
	int a;

	a = va_arg(fp->args, int);
	s = "???";
	if(a >= AXXX && a < ALAST)
	s = anames[a];
	return fmtstrcpy(fp, s);
	}

	int
	Dconv(Fmt *fp)
	{
	char str[STRINGSZ];
	Adr *a;
	const char *op;
	int v;

	a = va_arg(fp->args, Adr*);
	switch(a->type) {

	default:
	sprint(str, "GOK-type(%d)", a->type);
	break;

	case D_NONE:
	str[0] = 0;
	if(a->name != D_NONE \|\| a->reg != NREG \|\| a->sym != S)
	sprint(str, "%N(R%d)(NONE)", a, a->reg);
	break;

	case D_CONST:
	if(a->reg != NREG)
	sprint(str, "$%N(R%d)", a, a->reg);
	else
	sprint(str, "$%N", a);
	break;

	case D_CONST2:
	sprint(str, "$%d-%d", a->offset, a->offset2);
	break;

	case D_SHIFT:
	v = a->offset;
	op = &"<<>>->@>"[(((v>>5) & 3) << 1)];
	if(v & (1<<4))
	sprint(str, "R%d%c%cR%d", v&15, op[0], op[1], (v>>8)&15);
	else
	sprint(str, "R%d%c%c%d", v&15, op[0], op[1], (v>>7)&31);
	if(a->reg != NREG)
	sprint(str+strlen(str), "(R%d)", a->reg);
	break;

	case D_OREG:
	if(a->reg != NREG)
	sprint(str, "%N(R%d)", a, a->reg);
	else
	sprint(str, "%N", a);
	break;

	case D_REG:
	sprint(str, "R%d", a->reg);
	if(a->name != D_NONE \|\| a->sym != S)
	sprint(str, "%N(R%d)(REG)", a, a->reg);
	break;

	case D_FREG:
	sprint(str, "F%d", a->reg);
	if(a->name != D_NONE \|\| a->sym != S)
	sprint(str, "%N(R%d)(REG)", a, a->reg);
	break;

	case D_PSR:
	sprint(str, "PSR");
	if(a->name != D_NONE \|\| a->sym != S)
	sprint(str, "%N(PSR)(REG)", a);
	break;

	case D_BRANCH:
	sprint(str, "%d(PC)", a->offset-pc);
	break;

	case D_FCONST:
	sprint(str, "$%.17e", a->dval);
	break;

	case D_SCONST:
	sprint(str, "$\"%S\"", a->sval);
	break;
	}
	return fmtstrcpy(fp, str);
	}

	int
	Rconv(Fmt *fp)
	{
	char str[STRINGSZ];
	Adr *a;
	int i, v;

	a = va_arg(fp->args, Adr*);
	sprint(str, "GOK-reglist");
	switch(a->type) {
	case D_CONST:
	case D_CONST2:
	if(a->reg != NREG)
	break;
	if(a->sym != S)
	break;
	v = a->offset;
	strcpy(str, "");
	for(i=0; i<NREG; i++) {
	if(v & (1<<i)) {
	if(str[0] == 0)
	strcat(str, "[R");
	else
	strcat(str, ",R");
	sprint(strchr(str, 0), "%d", i);
	}
	}
	strcat(str, "]");
	}
	return fmtstrcpy(fp, str);
	}

	int
	Sconv(Fmt *fp)
	{
	int i, c;
	char str[STRINGSZ], p, a;

	a = va_arg(fp->args, char*);
	p = str;
	for(i=0; i<NSNAME; i++) {
	c = a[i] & 0xff;
	if(c >= 'a' && c <= 'z' \|\|
	c >= 'A' && c <= 'Z' \|\|
	c >= '0' && c <= '9' \|\|
	c == ' ' \|\| c == '%') {
	*p++ = c;
	continue;
	}
	*p++ = '\\';
	switch(c) {
	case 0:
	*p++ = 'z';
	continue;
	case '\\':
	case '"':
	*p++ = c;
	continue;
	case '\n':
	*p++ = 'n';
	continue;
	case '\t':
	*p++ = 't';
	continue;
	case '\r':
	*p++ = 'r';
	continue;
	case '\f':
	*p++ = 'f';
	continue;
	}
	*p++ = (c>>6) + '0';
	*p++ = ((c>>3) & 7) + '0';
	*p++ = (c & 7) + '0';
	}
	*p = 0;
	return fmtstrcpy(fp, str);
	}

	int
	Nconv(Fmt *fp)
	{
	char str[STRINGSZ];
	Adr *a;
	Sym *s;

	a = va_arg(fp->args, Adr*);
	s = a->sym;
	if(s == S) {
	sprint(str, "%d", a->offset);
	goto out;
	}
	switch(a->name) {
	default:
	sprint(str, "GOK-name(%d)", a->name);
	break;

	case D_NONE:
	sprint(str, "%d", a->offset);
	break;

	case D_EXTERN:
	sprint(str, "%s+%d(SB)", s->name, a->offset);
	break;

	case D_STATIC:
	sprint(str, "%s<>+%d(SB)", s->name, a->offset);
	break;

	case D_AUTO:
	sprint(str, "%s-%d(SP)", s->name, -a->offset);
	break;

	case D_PARAM:
	sprint(str, "%s+%d(FP)", s->name, a->offset);
	break;
	}
	out:
	return fmtstrcpy(fp, str);
	}