#define EXTERN#include "l.h"#include <ar.h> #ifndef DEFAULT#define DEFAULT '9'#endif char *noname = "<none>";char symname[] = SYMDEF;char thechar = '7';char *thestring = "arm64"; static intisobjfile(char *f){ int n, v; Biobuf *b; char buf1[5], buf2[SARMAG]; b = Bopen(f, OREAD); if(b == nil) return 0; n = Bread(b, buf1, 5); if(n == 5 && (buf1[2] == 1 && buf1[3] == '<' || buf1[3] == 1 && buf1[4] == '<')) v = 1; /* good enough for our purposes */ else{ Bseek(b, 0, 0); n = Bread(b, buf2, SARMAG); v = n == SARMAG && strncmp(buf2, ARMAG, SARMAG) == 0; } Bterm(b); return v;} /* * -H0 no header * -H2 -T0x100028 -R0x100000 is plan9 format * -H6 -R0x10000 no header with segments padded to pages * -H7 is elf */ voidusage(void){ diag("usage: %s [-options] objects", argv0); errorexit();} voidmain(int argc, char *argv[]){ int c; char *a; Binit(&bso, 1, OWRITE); cout = -1; listinit(); outfile = 0; nerrors = 0; curtext = P; INITTEXT = -1; INITDAT = -1; HEADTYPE = -1; INITTEXTP = -1; INITRND = -1; INITENTRY = 0; ARGBEGIN { default: c = ARGC(); if(c >= 0 && c < sizeof(debug)) debug[c]++; break; case 'o': outfile = ARGF(); break; case 'E': a = ARGF(); if(a) INITENTRY = a; break;// case 'L':// addlibpath(EARGF(usage()));// break; case 'T': a = ARGF(); if(a) INITTEXT = atolwhex(a); break; case 'P': a = ARGF(); if(a) INITTEXTP = atolwhex(a); break; case 'D': a = ARGF(); if(a) INITDAT = atolwhex(a); break; case 'R': a = ARGF(); if(a) INITRND = atolwhex(a); break; case 'H': a = ARGF(); if(a) HEADTYPE = atolwhex(a); break; case 'x': /* produce export table */ doexp = 1; if(argv[1] != nil && argv[1][0] != '-' && !isobjfile(argv[1])) readundefs(ARGF(), SEXPORT); break; case 'u': /* produce dynamically loadable module */ dlm = 1; if(argv[1] != nil && argv[1][0] != '-' && !isobjfile(argv[1])) readundefs(ARGF(), SIMPORT); break; } ARGEND USED(argc); if(*argv == 0) usage(); if(!debug['9'] && !debug['U'] && !debug['B']) debug[DEFAULT] = 1;// addlibroot(); if(HEADTYPE == -1) { if(debug['U']) HEADTYPE = 0; if(debug['B']) HEADTYPE = 1; if(debug['9']) HEADTYPE = 2; } switch(HEADTYPE) { default: diag("unknown -H option"); errorexit(); case 0: /* no header */ case 6: /* no header, padded segments */ HEADR = 0L; if(INITTEXT == -1) INITTEXT = 0; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; case 2: /* plan 9 */ HEADR = 40L; if(INITTEXT == -1) INITTEXT = 0x10000+HEADR; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 0x10000; break; } if (INITTEXTP == -1) INITTEXTP = INITTEXT; if(INITDAT != 0 && INITRND != 0) print("warning: -D0x%llux is ignored because of -R0x%lux\n", INITDAT, INITRND); if(debug['v']) Bprint(&bso, "HEADER = -H0x%d -T0x%llux -D0x%llux -R0x%lux\n", HEADTYPE, INITTEXT, INITDAT, INITRND); Bflush(&bso); zprg.as = AGOK; zprg.reg = NREG; zprg.from.name = D_NONE; zprg.from.type = D_NONE; zprg.from.reg = NREG; zprg.to = zprg.from; zprg.from3 = zprg.from; buildop(); histgen = 0; textp = P; datap = P; pc = 0; dtype = 4; if(outfile == 0) outfile = "7.out"; cout = create(outfile, 1, 0775); if(cout < 0) { diag("cannot create %s: %r", outfile); errorexit(); } nuxiinit(); version = 0; cbp = buf.cbuf; cbc = sizeof(buf.cbuf); firstp = prg(); lastp = firstp; if(INITENTRY == 0) { INITENTRY = "_main"; if(debug['p']) INITENTRY = "_mainp"; if(!debug['l']) lookup(INITENTRY, 0)->type = SXREF; } else if(!(*INITENTRY >= '0' && *INITENTRY <= '9')) lookup(INITENTRY, 0)->type = SXREF; while(*argv) objfile(*argv++); if(!debug['l']) loadlib(); firstp = firstp->link; if(firstp == P) goto out; if(doexp || dlm){ EXPTAB = "_exporttab"; zerosig(EXPTAB); zerosig("etext"); zerosig("edata"); zerosig("end"); if(dlm){ import(); HEADTYPE = 2; INITTEXT = INITDAT = 0; INITRND = 8; INITENTRY = EXPTAB; } export(); } patch(); if(debug['p']) if(debug['1']) doprof1(); else doprof2(); dodata(); follow(); if(firstp == P) goto out; noops(); span(); asmb(); undef(); out: if(debug['v']) { Bprint(&bso, "%5.2f cpu time\n", cputime()); Bprint(&bso, "%d sizeof adr\n", sizeof(Adr)); Bprint(&bso, "%d sizeof prog\n", sizeof(Prog)); } Bflush(&bso); errorexit();} voiderrorexit(void){ if(nerrors) { if(cout >= 0) remove(outfile); exits("error"); } exits(0);} voidloadlib(void){ int i; long h; Sym *s; loop: xrefresolv = 0; for(i=0; i<libraryp; i++) { if(debug['v']) Bprint(&bso, "%5.2f autolib: %s\n", cputime(), library[i]); objfile(library[i]); } if(xrefresolv) for(h=0; h<nelem(hash); h++) for(s = hash[h]; s != S; s = s->link) if(s->type == SXREF) goto loop;} voidobjfile(char *file){ long off, esym, cnt, l; int f, work; Sym *s; char magbuf[SARMAG]; char name[100], pname[150]; struct ar_hdr arhdr; char *e, *start, *stop; if(file[0] == '-' && file[1] == 'l') { if(debug['9']) snprint(name, sizeof name, "/%s/lib/lib%s.a", thestring, file+2); else snprint(name, sizeof name, "/usr/%clib/lib%s.a", thechar, file+2); file = name; } if(debug['v']) Bprint(&bso, "%5.2f ldobj: %s\n", cputime(), file); Bflush(&bso); f = open(file, 0); if(f < 0) { diag("cannot open file: %s", file); errorexit(); } l = read(f, magbuf, SARMAG); if(l != SARMAG || strncmp(magbuf, ARMAG, SARMAG)){ /* load it as a regular file */ l = seek(f, 0L, 2); seek(f, 0L, 0); ldobj(f, l, file); close(f); return; } if(debug['v']) Bprint(&bso, "%5.2f ldlib: %s\n", cputime(), file); l = read(f, &arhdr, SAR_HDR); if(l != SAR_HDR) { diag("%s: short read on archive file symbol header", file); goto out; } if(strncmp(arhdr.name, symname, strlen(symname))) { diag("%s: first entry not symbol header: %s", file, arhdr.name); goto out; } esym = SARMAG + SAR_HDR + atolwhex(arhdr.size); off = SARMAG + SAR_HDR; /* * just bang the whole symbol file into memory */ seek(f, off, 0); cnt = esym - off; start = malloc(cnt + 10); cnt = read(f, start, cnt); if(cnt <= 0){ close(f); return; } stop = &start[cnt]; memset(stop, 0, 10); work = 1; while(work){ if(debug['v']) Bprint(&bso, "%5.2f library pass: %s\n", cputime(), file); Bflush(&bso); work = 0; for(e = start; e < stop; e = strchr(e+5, 0) + 1) { s = lookup(e+5, 0); if(s->type != SXREF) continue; snprint(pname, sizeof pname, "%s(%s)", file, s->name); if(debug['v']) Bprint(&bso, "%5.2f library: %s\n", cputime(), pname); Bflush(&bso); l = e[1] & 0xff; l |= (e[2] & 0xff) << 8; l |= (e[3] & 0xff) << 16; l |= (e[4] & 0xff) << 24; seek(f, l, 0); l = read(f, &arhdr, SAR_HDR); if(l != SAR_HDR) goto bad; if(strncmp(arhdr.fmag, ARFMAG, sizeof(arhdr.fmag))) goto bad; l = atolwhex(arhdr.size); ldobj(f, l, pname); if(s->type == SXREF) { diag("%s: failed to load: %s", file, s->name); errorexit(); } work = 1; xrefresolv = 1; } } return; bad: diag("%s: bad or out of date archive", file);out: close(f);} intzaddr(uchar *p, Adr *a, Sym *h[]){ int i, c; long l; Sym *s; Auto *u; c = p[2]; if(c < 0 || c > NSYM){ print("sym out of range: %d\n", c); p[0] = ALAST+1; return 0; } a->type = p[0]; a->reg = p[1]; a->sym = h[c]; a->name = p[3]; c = 4; if(a->reg < 0 || a->reg > NREG) { print("register out of range %d\n", a->reg); p[0] = ALAST+1; return 0; /* force real diagnostic */ } switch(a->type) { default: print("unknown type %d\n", a->type); p[0] = ALAST+1; return 0; /* force real diagnostic */ case D_NONE: case D_REG: case D_SP: case D_FREG: case D_VREG: case D_COND: break; case D_OREG: case D_XPRE: case D_XPOST: case D_CONST: case D_BRANCH: case D_SHIFT: case D_EXTREG: case D_ROFF: case D_SPR: l = p[4] | (p[5]<<8) | (p[6]<<16) | (p[7]<<24); a->offset = l; c += 4; if(a->type == D_CONST && l == 0) a->reg = REGZERO; break; case D_DCONST: l = p[4] | (p[5]<<8) | (p[6]<<16) | (p[7]<<24); a->offset = (uvlong)l & 0xFFFFFFFFUL; l = p[8] | (p[9]<<8) | (p[10]<<16) | (p[11]<<24); a->offset |= (vlong)l << 32; c += 8; a->type = D_CONST; if(a->offset == 0) a->reg = REGZERO; break; case D_SCONST: a->sval = malloc(NSNAME); memmove(a->sval, p+4, NSNAME); c += NSNAME; break; case D_FCONST: a->ieee = malloc(sizeof(Ieee)); a->ieee->l = p[4] | (p[5]<<8) | (p[6]<<16) | (p[7]<<24); a->ieee->h = p[8] | (p[9]<<8) | (p[10]<<16) | (p[11]<<24); c += 8; break; } s = a->sym; if(s == S) return c; i = a->name; if(i != D_AUTO && i != D_PARAM) return c; l = a->offset; for(u=curauto; u; u=u->link) if(u->asym == s) if(u->type == i) { if(u->aoffset > l) u->aoffset = l; return c; } u = malloc(sizeof(Auto)); memset(u, 0, sizeof(Auto)); u->link = curauto; curauto = u; u->asym = s; u->aoffset = l; u->type = i; return c;Lines 1–500 of 1461. 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#define EXTERN #include "l.h" #include <ar.h> #ifndef DEFAULT #define DEFAULT '9' #endif char *noname = "<none>"; char symname[] = SYMDEF; char thechar = '7'; char *thestring = "arm64"; static int isobjfile(char *f) { int n, v; Biobuf *b; char buf1[5], buf2[SARMAG]; b = Bopen(f, OREAD); if(b == nil) return 0; n = Bread(b, buf1, 5); if(n == 5 && (buf1[2] == 1 && buf1[3] == '<' || buf1[3] == 1 && buf1[4] == '<')) v = 1; /* good enough for our purposes */ else{ Bseek(b, 0, 0); n = Bread(b, buf2, SARMAG); v = n == SARMAG && strncmp(buf2, ARMAG, SARMAG) == 0; } Bterm(b); return v; } /* * -H0 no header * -H2 -T0x100028 -R0x100000 is plan9 format * -H6 -R0x10000 no header with segments padded to pages * -H7 is elf */ void usage(void) { diag("usage: %s [-options] objects", argv0); errorexit(); } void main(int argc, char *argv[]) { int c; char *a; Binit(&bso, 1, OWRITE); cout = -1; listinit(); outfile = 0; nerrors = 0; curtext = P; INITTEXT = -1; INITDAT = -1; HEADTYPE = -1; INITTEXTP = -1; INITRND = -1; INITENTRY = 0; ARGBEGIN { default: c = ARGC(); if(c >= 0 && c < sizeof(debug)) debug[c]++; break; case 'o': outfile = ARGF(); break; case 'E': a = ARGF(); if(a) INITENTRY = a; break; // case 'L': // addlibpath(EARGF(usage())); // break; case 'T': a = ARGF(); if(a) INITTEXT = atolwhex(a); break; case 'P': a = ARGF(); if(a) INITTEXTP = atolwhex(a); break; case 'D': a = ARGF(); if(a) INITDAT = atolwhex(a); break; case 'R': a = ARGF(); if(a) INITRND = atolwhex(a); break; case 'H': a = ARGF(); if(a) HEADTYPE = atolwhex(a); break; case 'x': /* produce export table */ doexp = 1; if(argv[1] != nil && argv[1][0] != '-' && !isobjfile(argv[1])) readundefs(ARGF(), SEXPORT); break; case 'u': /* produce dynamically loadable module */ dlm = 1; if(argv[1] != nil && argv[1][0] != '-' && !isobjfile(argv[1])) readundefs(ARGF(), SIMPORT); break; } ARGEND USED(argc); if(*argv == 0) usage(); if(!debug['9'] && !debug['U'] && !debug['B']) debug[DEFAULT] = 1; // addlibroot(); if(HEADTYPE == -1) { if(debug['U']) HEADTYPE = 0; if(debug['B']) HEADTYPE = 1; if(debug['9']) HEADTYPE = 2; } switch(HEADTYPE) { default: diag("unknown -H option"); errorexit(); case 0: /* no header */ case 6: /* no header, padded segments */ HEADR = 0L; if(INITTEXT == -1) INITTEXT = 0; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; case 2: /* plan 9 */ HEADR = 40L; if(INITTEXT == -1) INITTEXT = 0x10000+HEADR; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 0x10000; break; } if (INITTEXTP == -1) INITTEXTP = INITTEXT; if(INITDAT != 0 && INITRND != 0) print("warning: -D0x%llux is ignored because of -R0x%lux\n", INITDAT, INITRND); if(debug['v']) Bprint(&bso, "HEADER = -H0x%d -T0x%llux -D0x%llux -R0x%lux\n", HEADTYPE, INITTEXT, INITDAT, INITRND); Bflush(&bso); zprg.as = AGOK; zprg.reg = NREG; zprg.from.name = D_NONE; zprg.from.type = D_NONE; zprg.from.reg = NREG; zprg.to = zprg.from; zprg.from3 = zprg.from; buildop(); histgen = 0; textp = P; datap = P; pc = 0; dtype = 4; if(outfile == 0) outfile = "7.out"; cout = create(outfile, 1, 0775); if(cout < 0) { diag("cannot create %s: %r", outfile); errorexit(); } nuxiinit(); version = 0; cbp = buf.cbuf; cbc = sizeof(buf.cbuf); firstp = prg(); lastp = firstp; if(INITENTRY == 0) { INITENTRY = "_main"; if(debug['p']) INITENTRY = "_mainp"; if(!debug['l']) lookup(INITENTRY, 0)->type = SXREF; } else if(!(*INITENTRY >= '0' && *INITENTRY <= '9')) lookup(INITENTRY, 0)->type = SXREF; while(*argv) objfile(*argv++); if(!debug['l']) loadlib(); firstp = firstp->link; if(firstp == P) goto out; if(doexp || dlm){ EXPTAB = "_exporttab"; zerosig(EXPTAB); zerosig("etext"); zerosig("edata"); zerosig("end"); if(dlm){ import(); HEADTYPE = 2; INITTEXT = INITDAT = 0; INITRND = 8; INITENTRY = EXPTAB; } export(); } patch(); if(debug['p']) if(debug['1']) doprof1(); else doprof2(); dodata(); follow(); if(firstp == P) goto out; noops(); span(); asmb(); undef(); out: if(debug['v']) { Bprint(&bso, "%5.2f cpu time\n", cputime()); Bprint(&bso, "%d sizeof adr\n", sizeof(Adr)); Bprint(&bso, "%d sizeof prog\n", sizeof(Prog)); } Bflush(&bso); errorexit(); } void errorexit(void) { if(nerrors) { if(cout >= 0) remove(outfile); exits("error"); } exits(0); } void loadlib(void) { int i; long h; Sym *s; loop: xrefresolv = 0; for(i=0; i<libraryp; i++) { if(debug['v']) Bprint(&bso, "%5.2f autolib: %s\n", cputime(), library[i]); objfile(library[i]); } if(xrefresolv) for(h=0; h<nelem(hash); h++) for(s = hash[h]; s != S; s = s->link) if(s->type == SXREF) goto loop; } void objfile(char *file) { long off, esym, cnt, l; int f, work; Sym *s; char magbuf[SARMAG]; char name[100], pname[150]; struct ar_hdr arhdr; char *e, *start, *stop; if(file[0] == '-' && file[1] == 'l') { if(debug['9']) snprint(name, sizeof name, "/%s/lib/lib%s.a", thestring, file+2); else snprint(name, sizeof name, "/usr/%clib/lib%s.a", thechar, file+2); file = name; } if(debug['v']) Bprint(&bso, "%5.2f ldobj: %s\n", cputime(), file); Bflush(&bso); f = open(file, 0); if(f < 0) { diag("cannot open file: %s", file); errorexit(); } l = read(f, magbuf, SARMAG); if(l != SARMAG || strncmp(magbuf, ARMAG, SARMAG)){ /* load it as a regular file */ l = seek(f, 0L, 2); seek(f, 0L, 0); ldobj(f, l, file); close(f); return; } if(debug['v']) Bprint(&bso, "%5.2f ldlib: %s\n", cputime(), file); l = read(f, &arhdr, SAR_HDR); if(l != SAR_HDR) { diag("%s: short read on archive file symbol header", file); goto out; } if(strncmp(arhdr.name, symname, strlen(symname))) { diag("%s: first entry not symbol header: %s", file, arhdr.name); goto out; } esym = SARMAG + SAR_HDR + atolwhex(arhdr.size); off = SARMAG + SAR_HDR; /* * just bang the whole symbol file into memory */ seek(f, off, 0); cnt = esym - off; start = malloc(cnt + 10); cnt = read(f, start, cnt); if(cnt <= 0){ close(f); return; } stop = &start[cnt]; memset(stop, 0, 10); work = 1; while(work){ if(debug['v']) Bprint(&bso, "%5.2f library pass: %s\n", cputime(), file); Bflush(&bso); work = 0; for(e = start; e < stop; e = strchr(e+5, 0) + 1) { s = lookup(e+5, 0); if(s->type != SXREF) continue; snprint(pname, sizeof pname, "%s(%s)", file, s->name); if(debug['v']) Bprint(&bso, "%5.2f library: %s\n", cputime(), pname); Bflush(&bso); l = e[1] & 0xff; l |= (e[2] & 0xff) << 8; l |= (e[3] & 0xff) << 16; l |= (e[4] & 0xff) << 24; seek(f, l, 0); l = read(f, &arhdr, SAR_HDR); if(l != SAR_HDR) goto bad; if(strncmp(arhdr.fmag, ARFMAG, sizeof(arhdr.fmag))) goto bad; l = atolwhex(arhdr.size); ldobj(f, l, pname); if(s->type == SXREF) { diag("%s: failed to load: %s", file, s->name); errorexit(); } work = 1; xrefresolv = 1; } } return; bad: diag("%s: bad or out of date archive", file); out: close(f); } int zaddr(uchar *p, Adr *a, Sym *h[]) { int i, c; long l; Sym *s; Auto *u; c = p[2]; if(c < 0 || c > NSYM){ print("sym out of range: %d\n", c); p[0] = ALAST+1; return 0; } a->type = p[0]; a->reg = p[1]; a->sym = h[c]; a->name = p[3]; c = 4; if(a->reg < 0 || a->reg > NREG) { print("register out of range %d\n", a->reg); p[0] = ALAST+1; return 0; /* force real diagnostic */ } switch(a->type) { default: print("unknown type %d\n", a->type); p[0] = ALAST+1; return 0; /* force real diagnostic */ case D_NONE: case D_REG: case D_SP: case D_FREG: case D_VREG: case D_COND: break; case D_OREG: case D_XPRE: case D_XPOST: case D_CONST: case D_BRANCH: case D_SHIFT: case D_EXTREG: case D_ROFF: case D_SPR: l = p[4] | (p[5]<<8) | (p[6]<<16) | (p[7]<<24); a->offset = l; c += 4; if(a->type == D_CONST && l == 0) a->reg = REGZERO; break; case D_DCONST: l = p[4] | (p[5]<<8) | (p[6]<<16) | (p[7]<<24); a->offset = (uvlong)l & 0xFFFFFFFFUL; l = p[8] | (p[9]<<8) | (p[10]<<16) | (p[11]<<24); a->offset |= (vlong)l << 32; c += 8; a->type = D_CONST; if(a->offset == 0) a->reg = REGZERO; break; case D_SCONST: a->sval = malloc(NSNAME); memmove(a->sval, p+4, NSNAME); c += NSNAME; break; case D_FCONST: a->ieee = malloc(sizeof(Ieee)); a->ieee->l = p[4] | (p[5]<<8) | (p[6]<<16) | (p[7]<<24); a->ieee->h = p[8] | (p[9]<<8) | (p[10]<<16) | (p[11]<<24); c += 8; break; } s = a->sym; if(s == S) return c; i = a->name; if(i != D_AUTO && i != D_PARAM) return c; l = a->offset; for(u=curauto; u; u=u->link) if(u->asym == s) if(u->type == i) { if(u->aoffset > l) u->aoffset = l; return c; } u = malloc(sizeof(Auto)); memset(u, 0, sizeof(Auto)); u->link = curauto; curauto = u; u->asym = s; u->aoffset = l; u->type = i; return c;