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authorcinap_lenrek <cinap_lenrek@felloff.net>2016-05-04 16:11:48 +0200
committercinap_lenrek <cinap_lenrek@felloff.net>2016-05-04 16:11:48 +0200
commit986886f2b8ab4a7e1b3d66e99934d8fdab537be9 (patch)
treec49e9711e7229a8d12f5b5b0ab38b5bd6c27b711 /sys/src/cmd/7l/obj.c
parentf7703d6971383c39f981f5676a4e28a6371c3997 (diff)
retire the dec alpha port
Diffstat (limited to 'sys/src/cmd/7l/obj.c')
-rw-r--r--sys/src/cmd/7l/obj.c1350
1 files changed, 0 insertions, 1350 deletions
diff --git a/sys/src/cmd/7l/obj.c b/sys/src/cmd/7l/obj.c
deleted file mode 100644
index 793e5825e..000000000
--- a/sys/src/cmd/7l/obj.c
+++ /dev/null
@@ -1,1350 +0,0 @@
-#include "l.h"
-#include <ar.h>
-
-#ifndef DEFAULT
-#define DEFAULT '9'
-#endif
-
-char *noname = "<none>";
-char symname[] = SYMDEF;
-char thechar = '7';
-char *thestring = "alpha";
-
-/*
- * -H0 -T0x12000004C -D0x140000000 is abbrev unix
- * -H1 -T0x20000000 -R4 is bootp() format
- * -H2 -T8224 -R8192 is plan9 format
- */
-
-void
-main(int argc, char *argv[])
-{
- int c;
- char *a;
-
- Binit(&bso, 1, OWRITE);
- cout = -1;
- listinit();
- outfile = 0;
- nerrors = 0;
- curtext = P;
- HEADTYPE = -1;
- INITTEXT = -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 'T':
- a = ARGF();
- if(a)
- INITTEXT = 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;
- } ARGEND
-
- USED(argc);
-
- if(*argv == 0) {
- diag("usage: 7l [-options] objects");
- errorexit();
- }
- if(!debug['9'] && !debug['B'] && !debug['U'])
- debug[DEFAULT] = 1;
- 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: /* unix simple */
- HEADR = 32L+80L;
- if(INITTEXT == -1)
- INITTEXT = 0x120000070LL; /* BUG */
- if(INITDAT == -1)
- INITDAT = 0x140000000LL; /* BUG */
- if(INITRND == -1)
- INITRND = 0;
- break;
-
- case 1: /* boot */
- HEADR = 32L+84L;
- if(INITTEXT == -1)
- INITTEXT = 0x20000074L;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 8;
- break;
- case 2: /* plan 9 */
- HEADR = 32L;
- if(INITTEXT == -1)
- INITTEXT = 8224;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 8192;
- break;
- case 3: /* ``headerless'' tftp boot -- uses branch as magic */
- HEADR = 32L;
- if(INITTEXT == -1)
- INITTEXT = 0x20000020L;
- if(INITDAT == -1)
- INITDAT = 0;
- if(INITRND == -1)
- INITRND = 8;
- break;
- }
- 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.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 = "7.out";
- cout = create(outfile, 1, 0775);
- if(cout < 0) {
- diag("%s: cannot create", 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
- lookup(INITENTRY, 0)->type = SXREF;
-
- while(*argv)
- objfile(*argv++);
- if(!debug['l'])
- loadlib();
- firstp = firstp->link;
- if(firstp == P)
- goto out;
- patch();
- if(debug['p'])
- if(debug['1'])
- doprof1();
- else
- doprof2();
- follow();
- if(firstp == P)
- goto out;
- noops();
- dodata(); /* is before follow() on other arch */
- 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
-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)
-{
-
- Bflush(&bso);
- 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[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", 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;
- 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;
- vlong 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[p[2]];
- 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_FREG:
- case D_PREG:
- case D_FCREG:
- case D_PCC:
- break;
-
- case D_BRANCH:
- case D_OREG:
- case D_CONST:
- a->offset = (uvlong)p[4] | ((uvlong)p[5]<<8L) |
- ((uvlong) p[6]<<16L) | ((uvlong) p[7]<<24L) |
- ((uvlong) p[8]<<32L) | ((uvlong) p[9]<<40L) |
- ((uvlong) p[10]<<48L) | ((uvlong) p[11]<<56L);
- c += 8;
- break;
-
- case D_SCONST:
- while(nhunk < NSNAME)
- gethunk();
- a->sval = (char*)hunk;
- nhunk -= NSNAME;
- hunk += NSNAME;
-
- memmove(a->sval, p+4, NSNAME);
- c += NSNAME;
- break;
-
- case D_FCONST:
- while(nhunk < sizeof(Ieee))
- gethunk();
- a->ieee = (Ieee*)hunk;
- nhunk -= sizeof(Ieee);
- hunk += 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->sym == s)
- if(u->type == i) {
- if(u->offset > l)
- u->offset = l;
- return c;
- }
-
- while(nhunk < sizeof(Auto))
- gethunk();
- u = (Auto*)hunk;
- nhunk -= sizeof(Auto);
- hunk += sizeof(Auto);
-
- u->link = curauto;
- curauto = u;
- u->sym = s;
- u->offset = l;
- u->type = i;
- return c;
-}
-
-void
-addlib(char *obj)
-{
- char name[1024], comp[256], *p;
- int i;
-
- if(histfrogp <= 0)
- return;
-
- if(histfrog[0]->name[1] == '/') {
- name[0] = 0;
- i = 1;
- } else
- if(histfrog[0]->name[1] == '.') {
- snprint(name, sizeof name, ".");
- i = 0;
- } else {
- if(debug['9'])
- snprint(name, sizeof name, "/%s/lib", thestring);
- else
- snprint(name, sizeof name, "/usr/%clib", thechar);
- i = 0;
- }
-
- for(; i<histfrogp; i++) {
- snprint(comp, sizeof comp, histfrog[i]->name+1);
- for(;;) {
- p = strstr(comp, "$O");
- if(p == 0)
- break;
- memmove(p+1, p+2, strlen(p+2)+1);
- p[0] = thechar;
- }
- for(;;) {
- p = strstr(comp, "$M");
- if(p == 0)
- break;
- if(strlen(comp)+strlen(thestring)-2+1 >= sizeof comp) {
- diag("library component too long");
- return;
- }
- memmove(p+strlen(thestring), p+2, strlen(p+2)+1);
- memmove(p, thestring, strlen(thestring));
- }
- if(strlen(name) + strlen(comp) + 3 >= sizeof(name)) {
- diag("library component too long");
- return;
- }
- strcat(name, "/");
- strcat(name, comp);
- }
- for(i=0; i<libraryp; i++)
- if(strcmp(name, library[i]) == 0)
- return;
- if(libraryp == nelem(library)){
- diag("too many autolibs; skipping %s", name);
- return;
- }
-
- p = malloc(strlen(name) + 1);
- strcpy(p, name);
- library[libraryp] = p;
- p = malloc(strlen(obj) + 1);
- strcpy(p, obj);
- libraryobj[libraryp] = p;
- libraryp++;
-}
-
-void
-addhist(long line, int type)
-{
- Auto *u;
- Sym *s;
- int i, j, k;
-
- u = malloc(sizeof(Auto));
- s = malloc(sizeof(Sym));
- s->name = malloc(2*(histfrogp+1) + 1);
-
- u->sym = s;
- u->type = type;
- u->offset = line;
- u->link = curhist;
- curhist = u;
-
- j = 1;
- for(i=0; i<histfrogp; i++) {
- k = histfrog[i]->value;
- s->name[j+0] = k>>8;
- s->name[j+1] = k;
- j += 2;
- }
-}
-
-void
-histtoauto(void)
-{
- Auto *l;
-
- while(l = curhist) {
- curhist = l->link;
- l->link = curauto;
- curauto = l;
- }
-}
-
-void
-collapsefrog(Sym *s)
-{
- int i;
-
- /*
- * bad encoding of path components only allows
- * MAXHIST components. if there is an overflow,
- * first try to collapse xxx/..
- */
- for(i=1; i<histfrogp; i++)
- if(strcmp(histfrog[i]->name+1, "..") == 0) {
- memmove(histfrog+i-1, histfrog+i+1,
- (histfrogp-i-1)*sizeof(histfrog[0]));
- histfrogp--;
- goto out;
- }
-
- /*
- * next try to collapse .
- */
- for(i=0; i<histfrogp; i++)
- if(strcmp(histfrog[i]->name+1, ".") == 0) {
- memmove(histfrog+i, histfrog+i+1,
- (histfrogp-i-1)*sizeof(histfrog[0]));
- goto out;
- }
-
- /*
- * last chance, just truncate from front
- */
- memmove(histfrog+0, histfrog+1,
- (histfrogp-1)*sizeof(histfrog[0]));
-
-out:
- histfrog[histfrogp-1] = s;
-}
-
-void
-nopout(Prog *p)
-{
- p->as = ANOP;
- p->from.type = D_NONE;
- p->to.type = D_NONE;
-}
-
-uchar*
-readsome(int f, uchar *buf, uchar *good, uchar *stop, int max)
-{
- int n;
-
- n = stop - good;
- memmove(buf, good, stop - good);
- stop = buf + n;
- n = MAXIO - n;
- if(n > max)
- n = max;
- n = read(f, stop, n);
- if(n <= 0)
- return 0;
- return stop + n;
-}
-
-void
-ldobj(int f, long c, char *pn)
-{
- long ipc;
- Prog *p, *t;
- uchar *bloc, *bsize, *stop;
- Sym *h[NSYM], *s, *di;
- int v, o, r, skip;
-
- bsize = buf.xbuf;
- bloc = buf.xbuf;
- di = S;
-
-newloop:
- memset(h, 0, sizeof(h));
- version++;
- histfrogp = 0;
- ipc = pc;
- skip = 0;
-
-loop:
- if(c <= 0)
- goto eof;
- r = bsize - bloc;
- if(r < 100 && r < c) { /* enough for largest prog */
- bsize = readsome(f, buf.xbuf, bloc, bsize, c);
- if(bsize == 0)
- goto eof;
- bloc = buf.xbuf;
- goto loop;
- }
- o = bloc[0]; /* as */
- if(o <= AXXX || o >= ALAST) {
- diag("%s: line %ld: opcode out of range %d", pn, pc-ipc, o);
- print(" probably not a .7 file\n");
- errorexit();
- }
- if(o == ANAME) {
- stop = memchr(&bloc[3], 0, bsize-&bloc[3]);
- if(stop == 0){
- bsize = readsome(f, buf.xbuf, bloc, bsize, c);
- if(bsize == 0)
- goto eof;
- bloc = buf.xbuf;
- stop = memchr(&bloc[3], 0, bsize-&bloc[3]);
- if(stop == 0){
- fprint(2, "%s: name too long\n", pn);
- errorexit();
- }
- }
- v = bloc[1]; /* type */
- o = bloc[2]; /* sym */
- bloc += 3;
- c -= 3;
-
- r = 0;
- if(v == D_STATIC)
- r = version;
- s = lookup((char*)bloc, r);
- c -= &stop[1] - bloc;
- bloc = stop + 1;
-
- if(debug['W'])
- print(" ANAME %s\n", s->name);
- h[o] = s;
- if((v == D_EXTERN || v == D_STATIC) && s->type == 0)
- s->type = SXREF;
- if(v == D_FILE) {
- if(s->type != SFILE) {
- histgen++;
- s->type = SFILE;
- s->value = histgen;
- }
- if(histfrogp < MAXHIST) {
- histfrog[histfrogp] = s;
- histfrogp++;
- } else
- collapsefrog(s);
- }
- goto loop;
- }
-
- if(nhunk < sizeof(Prog))
- gethunk();
- p = (Prog*)hunk;
- nhunk -= sizeof(Prog);
- hunk += sizeof(Prog);
-
- p->as = o;
- p->reg = bloc[1] & 0x7f;
- if(bloc[1] & 0x80)
- p->mark = NOSCHED;
- p->line = bloc[2] | (bloc[3]<<8) | (bloc[4]<<16) | (bloc[5]<<24);
-
- r = zaddr(bloc+6, &p->from, h) + 6;
- r += zaddr(bloc+r, &p->to, h);
- bloc += r;
- c -= r;
-
- if(p->reg < 0 || p->reg > NREG)
- diag("register out of range %d", p->reg);
-
- p->link = P;
- p->cond = P;
-
- if(debug['W'])
- print("%P\n", p);
-
- switch(o) {
- case AHISTORY:
- if(p->to.offset == -1) {
- addlib(pn);
- histfrogp = 0;
- goto loop;
- }
- addhist(p->line, D_FILE); /* 'z' */
- if(p->to.offset)
- addhist(p->to.offset, D_PREG); /* 'Z' */
- histfrogp = 0;
- goto loop;
-
- case AEND:
- histtoauto();
- if(curtext != P)
- curtext->to.autom = curauto;
- curauto = 0;
- curtext = P;
- if(c)
- goto newloop;
- return;
-
- case AGLOBL:
- s = p->from.sym;
- if(s == S) {
- diag("GLOBL must have a name\n%P", p);
- errorexit();
- }
- if(s->type == 0 || s->type == SXREF) {
- s->type = SBSS;
- s->value = 0;
- }
- if(s->type != SBSS) {
- diag("redefinition: %s\n%P", s->name, p);
- s->type = SBSS;
- s->value = 0;
- }
- if(p->to.offset > s->value)
- s->value = p->to.offset;
- break;
-
- case ADYNT:
- if(p->to.sym == S) {
- diag("DYNT without a sym\n%P", p);
- break;
- }
- di = p->to.sym;
- p->reg = 4;
- if(di->type == SXREF) {
- if(debug['z'])
- Bprint(&bso, "%P set to %d\n", p, dtype);
- di->type = SCONST;
- di->value = dtype;
- dtype += 4;
- }
- if(p->from.sym == S)
- break;
-
- p->from.offset = di->value;
- p->from.sym->type = SDATA;
- if(curtext == P) {
- diag("DYNT not in text: %P", p);
- break;
- }
- p->to.sym = curtext->from.sym;
- p->to.type = D_CONST;
- p->link = datap;
- datap = p;
- break;
-
- case AINIT:
- if(p->from.sym == S) {
- diag("INIT without a sym\n%P", p);
- break;
- }
- if(di == S) {
- diag("INIT without previous DYNT\n%P", p);
- break;
- }
- p->from.offset = di->value;
- p->from.sym->type = SDATA;
- p->link = datap;
- datap = p;
- break;
-
- case ADATA:
- if(p->from.sym == S) {
- diag("DATA without a sym\n%P", p);
- break;
- }
- p->link = datap;
- datap = p;
- break;
-
- case AGOK:
- diag("unknown opcode\n%P", p);
- p->pc = pc;
- pc++;
- break;
-
- case ATEXT:
- if(curtext != P) {
- histtoauto();
- curtext->to.autom = curauto;
- curauto = 0;
- }
- skip = 0;
- curtext = p;
- autosize = (p->to.offset+3L) & ~3L;
- if (autosize & 4)
- autosize += 4;
- p->to.offset = autosize;
- autosize += 8;
- s = p->from.sym;
- if(s == S) {
- diag("TEXT must have a name\n%P", p);
- errorexit();
- }
- if(s->type != 0 && s->type != SXREF) {
- if(p->reg & DUPOK) {
- skip = 1;
- goto casedef;
- }
- diag("redefinition: %s\n%P", s->name, p);
- }
- s->type = STEXT;
- s->value = pc;
- lastp->link = p;
- lastp = p;
- p->pc = pc;
- pc++;
- if(textp == P) {
- textp = p;
- etextp = p;
- goto loop;
- }
- etextp->cond = p;
- etextp = p;
- break;
-
- case AMOVS:
- if(skip)
- goto casedef;
-
- if(p->from.type == D_FCONST) {
- /* size sb 9 max */
- snprint(literal, sizeof literal, "$%lux", ieeedtof(p->from.ieee));
- s = lookup(literal, 0);
- if(s->type == 0) {
- s->type = SBSS;
- s->value = 4;
- t = prg();
- t->as = ADATA;
- t->line = p->line;
- t->from.type = D_OREG;
- t->from.sym = s;
- t->from.name = D_EXTERN;
- t->reg = 4;
- t->to = p->from;
- t->link = datap;
- datap = t;
- }
- p->from.type = D_OREG;
- p->from.sym = s;
- p->from.name = D_EXTERN;
- p->from.offset = 0;
- }
- goto casedef;
-
- case AMOVT:
- if(skip)
- goto casedef;
-
- if(p->from.type == D_FCONST) {
- /* size sb 18 max */
- snprint(literal, sizeof literal, "$%lux.%lux",
- p->from.ieee->l, p->from.ieee->h);
- s = lookup(literal, 0);
- if(s->type == 0) {
- s->type = SBSS;
- s->value = 8;
- t = prg();
- t->as = ADATA;
- t->line = p->line;
- t->from.type = D_OREG;
- t->from.sym = s;
- t->from.name = D_EXTERN;
- t->reg = 8;
- t->to = p->from;
- t->link = datap;
- datap = t;
- }
- p->from.type = D_OREG;
- p->from.sym = s;
- p->from.name = D_EXTERN;
- p->from.offset = 0;
- }
- goto casedef;
-
- case AMOVQ:
- if(skip)
- goto casedef;
-
- if (p->from.type == D_FREG || p->to.type == D_FREG)
- p->as = AMOVT; /* stupid compiler optimiser kkludge */
-
- case AMOVL:
- case AMOVW:
- case AMOVB:
- /* BOTCH */
- if (p->from.type == D_CONST)
- if (p->from.offset == 0LL && p->from.name == D_NONE) {
- p->from.type = D_REG;
- p->from.reg = REGZERO;
- }
- goto casedef;
-
- default:
- casedef:
- if(skip)
- nopout(p);
-
- if(p->to.type == D_BRANCH)
- p->to.offset += ipc;
- lastp->link = p;
- lastp = p;
- p->pc = pc;
- pc++;
- break;
- }
- goto loop;
-
-eof:
- diag("truncated object file: %s", pn);
-}
-
-Sym*
-lookup(char *symb, int v)
-{
- Sym *s;
- char *p;
- long h;
- int c0, l;
-
- h = v;
- for(p=symb; c0 = *p; p++)
- h = h+h+h + c0;
- l = (p - symb) + 1;
- if(h < 0)
- h = ~h;
- h %= NHASH;
- for(s = hash[h]; s != S; s = s->link)
- if(s->version == v)
- if(memcmp(s->name, symb, l) == 0)
- return s;
-
- while(nhunk < sizeof(Sym))
- gethunk();
- s = (Sym*)hunk;
- nhunk -= sizeof(Sym);
- hunk += sizeof(Sym);
-
- s->name = malloc(l);
- memmove(s->name, symb, l);
-
- s->link = hash[h];
- s->type = 0;
- s->version = v;
- s->value = 0;
- hash[h] = s;
- return s;
-}
-
-Prog*
-prg(void)
-{
- Prog *p;
-
- while(nhunk < sizeof(Prog))
- gethunk();
- p = (Prog*)hunk;
- nhunk -= sizeof(Prog);
- hunk += sizeof(Prog);
-
- *p = zprg;
- return p;
-}
-
-void
-gethunk(void)
-{
- char *h;
- long nh;
-
- nh = NHUNK;
- if(thunk >= 5L*NHUNK) {
- nh = 5L*NHUNK;
- if(thunk >= 25L*NHUNK)
- nh = 25L*NHUNK;
- }
- h = mysbrk(nh);
- if(h == (char*)-1) {
- diag("out of memory");
- errorexit();
- }
- hunk = h;
- nhunk = nh;
- thunk += nh;
-}
-
-void
-doprof1(void)
-{
- Sym *s;
- long n;
- Prog *p, *q;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f profile 1\n", cputime());
- Bflush(&bso);
- s = lookup("__mcount", 0);
- n = 1;
- for(p = firstp->link; p != P; p = p->link) {
- if(p->as == ATEXT) {
- q = prg();
- q->line = p->line;
- q->link = datap;
- datap = q;
- q->as = ADATA;
- q->from.type = D_OREG;
- q->from.name = D_EXTERN;
- q->from.offset = n*4;
- q->from.sym = s;
- q->reg = 4;
- q->to = p->from;
- q->to.type = D_CONST;
-
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = AMOVL;
- p->from.type = D_OREG;
- p->from.name = D_EXTERN;
- p->from.sym = s;
- p->from.offset = n*4 + 4;
- p->to.type = D_REG;
- p->to.reg = REGTMP;
-
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = AADDQ;
- p->from.type = D_CONST;
- p->from.offset = 1;
- p->to.type = D_REG;
- p->to.reg = REGTMP;
-
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = AMOVL;
- p->from.type = D_REG;
- p->from.reg = REGTMP;
- p->to.type = D_OREG;
- p->to.name = D_EXTERN;
- p->to.sym = s;
- p->to.offset = n*4 + 4;
-
- n += 2;
- continue;
- }
- }
- q = prg();
- q->line = 0;
- q->link = datap;
- datap = q;
-
- q->as = ADATA;
- q->from.type = D_OREG;
- q->from.name = D_EXTERN;
- q->from.sym = s;
- q->reg = 4;
- q->to.type = D_CONST;
- q->to.offset = n;
-
- s->type = SBSS;
- s->value = n*4;
-}
-
-void
-doprof2(void)
-{
- Sym *s2, *s4;
- Prog *p, *q, *q2, *ps2, *ps4;
-
- if(debug['v'])
- Bprint(&bso, "%5.2f profile 2\n", cputime());
- Bflush(&bso);
-
- if(debug['e']){
- s2 = lookup("_tracein", 0);
- s4 = lookup("_traceout", 0);
- }else{
- s2 = lookup("_profin", 0);
- s4 = lookup("_profout", 0);
- }
- if(s2->type != STEXT || s4->type != STEXT) {
- if(debug['e'])
- diag("_tracein/_traceout not defined %d %d", s2->type, s4->type);
- else
- diag("_profin/_profout not defined");
- return;
- }
-
- ps2 = P;
- ps4 = P;
- for(p = firstp; p != P; p = p->link) {
- if(p->as == ATEXT) {
- if(p->from.sym == s2) {
- ps2 = p;
- p->reg = 1;
- }
- if(p->from.sym == s4) {
- ps4 = p;
- p->reg = 1;
- }
- }
- }
- for(p = firstp; p != P; p = p->link) {
- if(p->as == ATEXT) {
- if(p->reg != NREG) {
- for(;;) {
- q = p->link;
- if(q == P)
- break;
- if(q->as == ATEXT)
- break;
- p = q;
- }
- continue;
- }
-
- /*
- * JSR profin, R2
- */
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- if(debug['e']){ /* embedded tracing */
- q2 = prg();
- p->link = q2;
- q2->link = q;
-
- q2->line = p->line;
- q2->pc = p->pc;
-
- q2->as = AJMP;
- q2->to.type = D_BRANCH;
- q2->to.sym = p->to.sym;
- q2->cond = q->link;
- }else
- p->link = q;
- p = q;
- p->as = AJSR;
- p->to.type = D_BRANCH;
- p->cond = ps2;
- p->to.sym = s2;
-
- continue;
- }
- if(p->as == ARET) {
- /*
- * JSR (default)
- */
- if(debug['e']){ /* embedded tracing */
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- }
- /*
- * JSR profout
- */
- p->as = AJSR;
- p->to.type = D_BRANCH;
- p->cond = ps4;
- p->to.sym = s4;
-
-
- /*
- * RET
- */
- q = prg();
- q->line = p->line;
- q->pc = p->pc;
- q->link = p->link;
- p->link = q;
- p = q;
- p->as = ARET;
-
- continue;
- }
- }
-}
-
-void
-nuxiinit(void)
-{
- int i, c;
-
- for(i=0; i<4; i++) {
- c = find1(0x04030201L, i+1);
- if(i <= 4)
- inuxi4[i] = c;
- if(i <= 2)
- inuxi2[i] = c;
- if(i <= 1)
- inuxi1[i] = c;
- }
- for (i = 0; i < 4; i++) {
- c = find1(0x04030201L, i+1);
- fnuxi8[i] = c;
- fnuxi8[i+4] = c + sizeof(long);
- }
-
- if(debug['v']) {
- Bprint(&bso, "inuxi = ");
- for(i=0; i<1; i++)
- Bprint(&bso, "%d", inuxi1[i]);
- Bprint(&bso, " ");
- for(i=0; i<2; i++)
- Bprint(&bso, "%d", inuxi2[i]);
- Bprint(&bso, " ");
- for(i=0; i<4; i++)
- Bprint(&bso, "%d", inuxi4[i]);
- Bprint(&bso, " ");
- Bprint(&bso, "\nfnuxi = ");
- for(i=0; i<8; i++)
- Bprint(&bso, "%d", fnuxi8[i]);
- Bprint(&bso, "\n");
- }
- Bflush(&bso);
-}
-
-find1(long l, int c)
-{
- char *p;
- int i;
-
- p = (char*)&l;
- for(i=0; i<4; i++)
- if(*p++ == c)
- return i;
- return 0;
-}
-
-long
-ieeedtof(Ieee *ieee)
-{
- int exp;
- long v;
-
- if(ieee->h == 0)
- return 0;
- exp = (ieee->h>>20) & ((1L<<11)-1L);
- exp -= (1L<<10) - 2L;
- v = (ieee->h & 0xfffffL) << 3;
- v |= (ieee->l >> 29) & 0x7L;
- if((ieee->l >> 28) & 1) {
- v++;
- if(v & 0x800000L) {
- v = (v & 0x7fffffL) >> 1;
- exp++;
- }
- }
- if(exp <= -126 || exp >= 130)
- diag("double fp to single fp overflow");
- v |= ((exp + 126) & 0xffL) << 23;
- v |= ieee->h & 0x80000000L;
- return v;
-}
-
-double
-ieeedtod(Ieee *ieee)
-{
- Ieee e;
- double fr;
- int exp;
-
- if(ieee->h & (1L<<31)) {
- e.h = ieee->h & ~(1L<<31);
- e.l = ieee->l;
- return -ieeedtod(&e);
- }
- if(ieee->l == 0 && ieee->h == 0)
- return 0;
- fr = ieee->l & ((1L<<16)-1L);
- fr /= 1L<<16;
- fr += (ieee->l>>16) & ((1L<<16)-1L);
- fr /= 1L<<16;
- fr += (ieee->h & (1L<<20)-1L) | (1L<<20);
- fr /= 1L<<21;
- exp = (ieee->h>>20) & ((1L<<11)-1L);
- exp -= (1L<<10) - 2L;
- return ldexp(fr, exp);
-}