src/liblink/list5.c

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This source file includes following definitions.
listinit5
Pconv
Aconv
Dconv
RAconv
DSconv
Rconv
Mconv
// 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.

#include <u.h>
#include <libc.h>
#include <bio.h>
#include <link.h>
#include "../cmd/5l/5.out.h"

enum
{
        STRINGSZ = 1000
};

static int      Aconv(Fmt *fp);
static int      Dconv(Fmt *fp);
static int      Mconv(Fmt *fp);
static int      Pconv(Fmt *fp);
static int      Rconv(Fmt *fp);
static int      RAconv(Fmt *fp);
static int      DSconv(Fmt *fp);

#pragma varargck        type    "$"     char*
#pragma varargck        type    "M"     Addr*
#pragma varargck        type    "@"     Addr*

void
listinit5(void)
{
        fmtinstall('A', Aconv);
        fmtinstall('D', Dconv);
        fmtinstall('P', Pconv);
        fmtinstall('R', Rconv);

        // for internal use
        fmtinstall('$', DSconv);
        fmtinstall('M', Mconv);
        fmtinstall('@', RAconv);
}

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

static  Prog*   bigP;

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

        p = va_arg(fp->args, Prog*);
        bigP = p;
        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, "%.5lld (%L)        %A%s    %@,%D", p->pc, p->lineno, a, sc, &p->from, &p->to);
                else
                if(p->to.type == D_CONST)
                        sprint(str, "%.5lld (%L)        %A%s    %D,%@", p->pc, p->lineno, a, sc, &p->from, &p->to);
                else
                        sprint(str, "%.5lld (%L)        %A%s    %D,%D", p->pc, p->lineno, a, sc, &p->from, &p->to);
        } else
        if(a == ADATA)
                sprint(str, "%.5lld (%L)        %A      %D/%d,%D", p->pc, p->lineno, a, &p->from, p->reg, &p->to);
        else
        if(p->as == ATEXT)
                sprint(str, "%.5lld (%L)        %A      %D,%d,%D", p->pc, p->lineno, a, &p->from, p->reg, &p->to);
        else
        if(p->reg == NREG)
                sprint(str, "%.5lld (%L)        %A%s    %D,%D", p->pc, p->lineno, a, sc, &p->from, &p->to);
        else
        if(p->from.type != D_FREG)
                sprint(str, "%.5lld (%L)        %A%s    %D,R%d,%D", p->pc, p->lineno, a, sc, &p->from, p->reg, &p->to);
        else
                sprint(str, "%.5lld (%L)        %A%s    %D,F%d,%D", p->pc, p->lineno, a, sc, &p->from, p->reg, &p->to);
        bigP = nil;
        return fmtstrcpy(fp, str);
}

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

        a = va_arg(fp->args, int);
        s = "???";
        if(a >= AXXX && a < ALAST)
                s = anames5[a];
        return fmtstrcpy(fp, s);
}

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

        a = va_arg(fp->args, Addr*);
        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 != nil)
                        sprint(str, "%M(R%d)(NONE)", a, a->reg);
                break;

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

        case D_CONST2:
                sprint(str, "$%lld-%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, "%M(R%d)", a, a->reg);
                else
                        sprint(str, "%M", a);
                break;

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

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

        case D_PSR:
                sprint(str, "PSR");
                if(a->name != D_NONE || a->sym != nil)
                        sprint(str, "%M(PSR)(REG)", a);
                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/*-pc*/);
                break;

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

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

static int
RAconv(Fmt *fp)
{
        char str[STRINGSZ];
        Addr *a;
        int i, v;

        a = va_arg(fp->args, Addr*);
        sprint(str, "GOK-reglist");
        switch(a->type) {
        case D_CONST:
        case D_CONST2:
                if(a->reg != NREG)
                        break;
                if(a->sym != nil)
                        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);
}

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<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);
}

static int
Rconv(Fmt *fp)
{
        int r;
        char str[STRINGSZ];

        r = va_arg(fp->args, int);
        sprint(str, "R%d", r);
        return fmtstrcpy(fp, str);
}

static int
Mconv(Fmt *fp)
{
        char str[STRINGSZ];
        Addr *a;
        LSym *s;

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

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

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

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

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

        case D_PARAM:
                sprint(str, "%s+%d(FP)", s->name, (int)a->offset);
                break;
        }
out:
        return fmtstrcpy(fp, str);
}
/* [<][>][^][v][top][bottom][index][help] */
root/src/liblink/list5.c

DEFINITIONS
