/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #define EXTERN#include "l.h"#include <ar.h> #ifndef DEFAULT#define DEFAULT '9'#endif char *noname = "<none>";char symname[] = SYMDEF;char thechar = '5';char *thestring = "arm"; char** libdir;int nlibdir = 0;static int maxlibdir = 0; /* * -H0 no header * -H1 -T0x10005000 -R4 is aif for risc os * -H2 -T4128 -R4096 is plan9 format * -H3 -T0xF0000020 -R4 is NetBSD format * -H4 is IXP1200 (raw) * -H5 -T0xC0008010 -R1024 is ipaq * -H6 -R4096 no header with segments padded to pages * -H7 is elf */ voidusage(void){ diag("usage: %s [-options] objects", argv0); errorexit();} 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;} voidmain(int argc, char *argv[]){ int c; char *a; char name[LIBNAMELEN]; Binit(&bso, 1, OWRITE); cout = -1; listinit(); outfile = 0; nerrors = 0; curtext = P; HEADTYPE = -1; INITTEXT = -1; INITTEXTP = -1; INITDAT = -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); /* do something about setting INITTEXT */ 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; a = getenv("ccroot"); if(a != nil && *a != '\0') { if(!fileexists(a)) { diag("nonexistent $ccroot: %s", a); errorexit(); } }else a = ""; snprint(name, sizeof(name), "%s/%s/lib", a, thestring); addlibpath(name); 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 1: /* aif for risc os */ HEADR = 128L; if(INITTEXT == -1) INITTEXT = 0x10005000 + HEADR; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; case 2: /* plan 9 */ HEADR = 32L; if(INITTEXT == -1) INITTEXT = 4128; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4096; break; case 3: /* boot for NetBSD */ HEADR = 32L; if(INITTEXT == -1) INITTEXT = 0xF0000020L; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4096; break; case 4: /* boot for IXP1200 */ HEADR = 0L; if(INITTEXT == -1) INITTEXT = 0x0; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; case 5: /* boot for ipaq */ HEADR = 16L; if(INITTEXT == -1) INITTEXT = 0xC0008010; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 1024; break; case 7: /* elf executable */ HEADR = rnd(Ehdr32sz+3*Phdr32sz, 16); if(INITTEXT == -1) INITTEXT = 4096+HEADR; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; } if (INITTEXTP == -1) INITTEXTP = INITTEXT; if(INITDAT != 0 && INITRND != 0) print("warning: -D0x%lux is ignored because of -R0x%lux\n", INITDAT, INITRND); if(debug['v']) Bprint(&bso, "HEADER = -H0x%d -T0x%lux -D0x%lux -R0x%lux\n", HEADTYPE, INITTEXT, INITDAT, INITRND); Bflush(&bso); zprg.as = AGOK; zprg.scond = 14; zprg.reg = NREG; zprg.from.name = D_NONE; zprg.from.type = D_NONE; zprg.from.reg = NREG; zprg.to = zprg.from; buildop(); histgen = 0; textp = P; datap = P; pc = 0; dtype = 4; if(outfile == 0) outfile = "5.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){ initdiv(); import(); HEADTYPE = 2; INITTEXT = INITDAT = 0; INITRND = 8; INITENTRY = EXPTAB; } else divsig(); 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, "%ld memory used\n", thunk); Bprint(&bso, "%d sizeof adr\n", sizeof(Adr)); Bprint(&bso, "%d sizeof prog\n", sizeof(Prog)); } Bflush(&bso); errorexit();} voidaddlibpath(char *arg){ char **p; if(nlibdir >= maxlibdir) { if(maxlibdir == 0) maxlibdir = 8; else maxlibdir *= 2; p = malloc(maxlibdir*sizeof(*p)); if(p == nil) { diag("out of memory"); errorexit(); } memmove(p, libdir, nlibdir*sizeof(*p)); free(libdir); libdir = p; } libdir[nlibdir++] = strdup(arg);} char*findlib(char *file){ int i; char name[LIBNAMELEN]; for(i = 0; i < nlibdir; i++) { snprint(name, sizeof(name), "%s/%s", libdir[i], file); if(fileexists(name)) return libdir[i]; } return nil;} 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;} voiderrorexit(void){ if(nerrors) { if(cout >= 0) remove(outfile); exits("error"); } exits(0);} voidobjfile(char *file){ long off, esym, cnt, l; int f, work; Sym *s; char magbuf[SARMAG]; char name[LIBNAMELEN], pname[LIBNAMELEN]; struct ar_hdr arhdr; char *e, *start, *stop; if(debug['v']) Bprint(&bso, "%5.2f ldobj: %s\n", cputime(), file); Bflush(&bso); if(file[0] == '-' && file[1] == 'l') { snprint(pname, sizeof(pname), "lib%s.a", file+2); e = findlib(pname); if(e == nil) { diag("cannot find library: %s", file); errorexit(); } snprint(name, sizeof(name), "%s/%s", e, pname); file = name; } f = open(file, 0); if(f < 0) { diag("cannot open %s: %r", 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", file); 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; sprint(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); /* need readn to read the dumps (at least) */ l = readn(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;Lines 1–500 of 1654. Load more
/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #define EXTERN #include "l.h" #include <ar.h> #ifndef DEFAULT #define DEFAULT '9' #endif char *noname = "<none>"; char symname[] = SYMDEF; char thechar = '5'; char *thestring = "arm"; char** libdir; int nlibdir = 0; static int maxlibdir = 0; /* * -H0 no header * -H1 -T0x10005000 -R4 is aif for risc os * -H2 -T4128 -R4096 is plan9 format * -H3 -T0xF0000020 -R4 is NetBSD format * -H4 is IXP1200 (raw) * -H5 -T0xC0008010 -R1024 is ipaq * -H6 -R4096 no header with segments padded to pages * -H7 is elf */ void usage(void) { diag("usage: %s [-options] objects", argv0); errorexit(); } 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; } void main(int argc, char *argv[]) { int c; char *a; char name[LIBNAMELEN]; Binit(&bso, 1, OWRITE); cout = -1; listinit(); outfile = 0; nerrors = 0; curtext = P; HEADTYPE = -1; INITTEXT = -1; INITTEXTP = -1; INITDAT = -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); /* do something about setting INITTEXT */ 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; a = getenv("ccroot"); if(a != nil && *a != '\0') { if(!fileexists(a)) { diag("nonexistent $ccroot: %s", a); errorexit(); } }else a = ""; snprint(name, sizeof(name), "%s/%s/lib", a, thestring); addlibpath(name); 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 1: /* aif for risc os */ HEADR = 128L; if(INITTEXT == -1) INITTEXT = 0x10005000 + HEADR; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; case 2: /* plan 9 */ HEADR = 32L; if(INITTEXT == -1) INITTEXT = 4128; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4096; break; case 3: /* boot for NetBSD */ HEADR = 32L; if(INITTEXT == -1) INITTEXT = 0xF0000020L; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4096; break; case 4: /* boot for IXP1200 */ HEADR = 0L; if(INITTEXT == -1) INITTEXT = 0x0; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; case 5: /* boot for ipaq */ HEADR = 16L; if(INITTEXT == -1) INITTEXT = 0xC0008010; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 1024; break; case 7: /* elf executable */ HEADR = rnd(Ehdr32sz+3*Phdr32sz, 16); if(INITTEXT == -1) INITTEXT = 4096+HEADR; if(INITDAT == -1) INITDAT = 0; if(INITRND == -1) INITRND = 4; break; } if (INITTEXTP == -1) INITTEXTP = INITTEXT; if(INITDAT != 0 && INITRND != 0) print("warning: -D0x%lux is ignored because of -R0x%lux\n", INITDAT, INITRND); if(debug['v']) Bprint(&bso, "HEADER = -H0x%d -T0x%lux -D0x%lux -R0x%lux\n", HEADTYPE, INITTEXT, INITDAT, INITRND); Bflush(&bso); zprg.as = AGOK; zprg.scond = 14; zprg.reg = NREG; zprg.from.name = D_NONE; zprg.from.type = D_NONE; zprg.from.reg = NREG; zprg.to = zprg.from; buildop(); histgen = 0; textp = P; datap = P; pc = 0; dtype = 4; if(outfile == 0) outfile = "5.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){ initdiv(); import(); HEADTYPE = 2; INITTEXT = INITDAT = 0; INITRND = 8; INITENTRY = EXPTAB; } else divsig(); 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, "%ld memory used\n", thunk); Bprint(&bso, "%d sizeof adr\n", sizeof(Adr)); Bprint(&bso, "%d sizeof prog\n", sizeof(Prog)); } Bflush(&bso); errorexit(); } void addlibpath(char *arg) { char **p; if(nlibdir >= maxlibdir) { if(maxlibdir == 0) maxlibdir = 8; else maxlibdir *= 2; p = malloc(maxlibdir*sizeof(*p)); if(p == nil) { diag("out of memory"); errorexit(); } memmove(p, libdir, nlibdir*sizeof(*p)); free(libdir); libdir = p; } libdir[nlibdir++] = strdup(arg); } char* findlib(char *file) { int i; char name[LIBNAMELEN]; for(i = 0; i < nlibdir; i++) { snprint(name, sizeof(name), "%s/%s", libdir[i], file); if(fileexists(name)) return libdir[i]; } return nil; } 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 errorexit(void) { if(nerrors) { if(cout >= 0) remove(outfile); exits("error"); } exits(0); } void objfile(char *file) { long off, esym, cnt, l; int f, work; Sym *s; char magbuf[SARMAG]; char name[LIBNAMELEN], pname[LIBNAMELEN]; struct ar_hdr arhdr; char *e, *start, *stop; if(debug['v']) Bprint(&bso, "%5.2f ldobj: %s\n", cputime(), file); Bflush(&bso); if(file[0] == '-' && file[1] == 'l') { snprint(pname, sizeof(pname), "lib%s.a", file+2); e = findlib(pname); if(e == nil) { diag("cannot find library: %s", file); errorexit(); } snprint(name, sizeof(name), "%s/%s", e, pname); file = name; } f = open(file, 0); if(f < 0) { diag("cannot open %s: %r", 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", file); 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; sprint(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); /* need readn to read the dumps (at least) */ l = readn(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;