void
main(int argc, char *argv[])
{
int i, c;
char *a;
char name[LIBNAMELEN];
Binit(&bso, 1, OWRITE);
cout = -1;
listinit();
memset(debug, 0, sizeof(debug));
nerrors = 0;
outfile = "6.out";
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': /* output to (next arg) */
outfile = ARGF();
break;
case 'E':
a = ARGF();
if(a)
INITENTRY = a;
break;
case 'H':
a = ARGF();
if(a)
HEADTYPE = atolwhex(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 '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;
debug['l']++;
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['B'])
HEADTYPE = 2;
if(debug['9'])
HEADTYPE = 2;
}
switch(HEADTYPE) {
default:
diag("unknown -H option");
errorexit();
case 2: /* plan 9 */
HEADR = 32L+8L;
if(INITTEXT == -1)
INITTEXT = 0x200000+HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 0x200000;
break;
case 5: /* elf32 executable */
HEADR = rnd(Ehdr32sz+3*Phdr32sz, 16);
if(INITTEXT == -1)
INITTEXT = 0xf0110000L;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
case 6: /* ELF64 executable */
HEADR = rnd(Ehdr64sz+3*Phdr64sz, 16);
if(INITTEXT == -1)
INITTEXT = 0x200000+HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 0x200000;
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 = -H%ld -T0x%llux -D0x%llux -R0x%lux\n",
HEADTYPE, INITTEXT, INITDAT, INITRND);
Bflush(&bso);
for(i=1; optab[i].as; i++) {
c = optab[i].as;
if(opindex[c] != nil) {
diag("phase error in optab: %d (%A)", i, c);
errorexit();
}
opindex[c] = &optab[i];
}
for(i=0; i<Ymax; i++)
ycover[i*Ymax + i] = 1;
ycover[Yi0*Ymax + Yi8] = 1;
ycover[Yi1*Ymax + Yi8] = 1;
ycover[Yi0*Ymax + Ys32] = 1;
ycover[Yi1*Ymax + Ys32] = 1;
ycover[Yi8*Ymax + Ys32] = 1;
ycover[Yi0*Ymax + Yi32] = 1;
ycover[Yi1*Ymax + Yi32] = 1;
ycover[Yi8*Ymax + Yi32] = 1;
ycover[Ys32*Ymax + Yi32] = 1;
ycover[Yi0*Ymax + Yi64] = 1;
ycover[Yi1*Ymax + Yi64] = 1;
ycover[Yi8*Ymax + Yi64] = 1;
ycover[Ys32*Ymax + Yi64] = 1;
ycover[Yi32*Ymax + Yi64] = 1;
ycover[Yal*Ymax + Yrb] = 1;
ycover[Ycl*Ymax + Yrb] = 1;
ycover[Yax*Ymax + Yrb] = 1;
ycover[Ycx*Ymax + Yrb] = 1;
ycover[Yrx*Ymax + Yrb] = 1;
ycover[Yrl*Ymax + Yrb] = 1;
ycover[Ycl*Ymax + Ycx] = 1;
ycover[Yax*Ymax + Yrx] = 1;
ycover[Ycx*Ymax + Yrx] = 1;
ycover[Yax*Ymax + Yrl] = 1;
ycover[Ycx*Ymax + Yrl] = 1;
ycover[Yrx*Ymax + Yrl] = 1;
ycover[Yf0*Ymax + Yrf] = 1;
ycover[Yal*Ymax + Ymb] = 1;
ycover[Ycl*Ymax + Ymb] = 1;
ycover[Yax*Ymax + Ymb] = 1;
ycover[Ycx*Ymax + Ymb] = 1;
ycover[Yrx*Ymax + Ymb] = 1;
ycover[Yrb*Ymax + Ymb] = 1;
ycover[Yrl*Ymax + Ymb] = 1;
ycover[Ym*Ymax + Ymb] = 1;
ycover[Yax*Ymax + Yml] = 1;
ycover[Ycx*Ymax + Yml] = 1;
ycover[Yrx*Ymax + Yml] = 1;
ycover[Yrl*Ymax + Yml] = 1;
ycover[Ym*Ymax + Yml] = 1;
ycover[Yax*Ymax + Ymm] = 1;
ycover[Ycx*Ymax + Ymm] = 1;
ycover[Yrx*Ymax + Ymm] = 1;
ycover[Yrl*Ymax + Ymm] = 1;
ycover[Ym*Ymax + Ymm] = 1;
ycover[Ymr*Ymax + Ymm] = 1;
ycover[Yax*Ymax + Yxm] = 1;
ycover[Ycx*Ymax + Yxm] = 1;
ycover[Yrx*Ymax + Yxm] = 1;
ycover[Yrl*Ymax + Yxm] = 1;
ycover[Ym*Ymax + Yxm] = 1;
ycover[Yxr*Ymax + Yxm] = 1;
for(i=0; i<D_NONE; i++) {
reg[i] = -1;
if(i >= D_AL && i <= D_R15B) {
reg[i] = (i-D_AL) & 7;
if(i >= D_SPB && i <= D_DIB)
regrex[i] = 0x40;
if(i >= D_R8B && i <= D_R15B)
regrex[i] = Rxr | Rxx | Rxb;
}
if(i >= D_AH && i<= D_BH)
reg[i] = 4 + ((i-D_AH) & 7);
if(i >= D_AX && i <= D_R15) {
reg[i] = (i-D_AX) & 7;
if(i >= D_R8)
regrex[i] = Rxr | Rxx | Rxb;
}
if(i >= D_F0 && i <= D_F0+7)
reg[i] = (i-D_F0) & 7;
if(i >= D_M0 && i <= D_M0+7)
reg[i] = (i-D_M0) & 7;
if(i >= D_X0 && i <= D_X0+15) {
reg[i] = (i-D_X0) & 7;
if(i >= D_X0+8)
regrex[i] = Rxr | Rxx | Rxb;
}
if(i >= D_CR+8 && i <= D_CR+15)
regrex[i] = Rxr;
}
zprg.link = P;
zprg.pcond = P;
zprg.back = 2;
zprg.as = AGOK;
zprg.from.type = D_NONE;
zprg.from.index = D_NONE;
zprg.from.scale = 1;
zprg.to = zprg.from;
zprg.mode = 64;
pcstr = "%.6llux ";
nuxiinit();
histgen = 0;
textp = P;
datap = P;
edatap = P;
pc = 0;
dtype = 4;
cout = create(outfile, 1, 0775);
if(cout < 0) {
diag("cannot create %s: %r", outfile);
errorexit();
}
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)
errorexit();
if(doexp || dlm){
EXPTAB = "_exporttab";
zerosig(EXPTAB);
zerosig("etext");
zerosig("edata");
zerosig("end");
if(dlm){
import();
HEADTYPE = 2;
INITTEXT = 0;
INITDAT = 0;
INITRND = 8;
INITENTRY = EXPTAB;
}
export();
void
main(int argc, char *argv[])
{
int c;
char *name, *val;
Binit(&bso, 1, OWRITE);
listinit();
memset(debug, 0, sizeof(debug));
nerrors = 0;
outfile = nil;
HEADTYPE = -1;
INITTEXT = -1;
INITDAT = -1;
INITRND = -1;
INITENTRY = 0;
nuxiinit();
ARGBEGIN {
default:
c = ARGC();
if(c == 'l')
usage();
if(c >= 0 && c < sizeof(debug))
debug[c]++;
break;
case 'o': /* output to (next arg) */
outfile = EARGF(usage());
break;
case 'E':
INITENTRY = EARGF(usage());
break;
case 'H':
HEADTYPE = headtype(EARGF(usage()));
break;
case 'I':
debug['I'] = 1; // denote cmdline interpreter override
interpreter = EARGF(usage());
break;
case 'L':
Lflag(EARGF(usage()));
break;
case 'T':
INITTEXT = atolwhex(EARGF(usage()));
break;
case 'D':
INITDAT = atolwhex(EARGF(usage()));
break;
case 'R':
INITRND = atolwhex(EARGF(usage()));
break;
case 'r':
rpath = EARGF(usage());
break;
case 'V':
print("%cl version %s\n", thechar, getgoversion());
errorexit();
case 'X':
name = EARGF(usage());
val = EARGF(usage());
addstrdata(name, val);
break;
} ARGEND
if(argc != 1)
usage();
mywhatsys(); // get goos
if(HEADTYPE == -1)
HEADTYPE = headtype(goos);
if(outfile == nil) {
if(HEADTYPE == Hwindows)
outfile = "6.out.exe";
else
outfile = "6.out";
}
libinit();
switch(HEADTYPE) {
default:
diag("unknown -H option");
errorexit();
case Hplan9x32: /* plan 9 */
HEADR = 32L;
if(INITTEXT == -1)
INITTEXT = 4096+HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
case Hplan9x64: /* plan 9 */
HEADR = 32L + 8L;
if(INITTEXT == -1)
INITTEXT = 0x200000+HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 0x200000;
break;
case Helf: /* elf32 executable */
HEADR = rnd(52L+3*32L, 16);
if(INITTEXT == -1)
INITTEXT = 0x80110000L;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
case Hdarwin: /* apple MACH */
/*
* OS X system constant - offset from 0(GS) to our TLS.
* Explained in ../../pkg/runtime/cgo/gcc_darwin_amd64.c.
*/
tlsoffset = 0x8a0;
machoinit();
HEADR = INITIAL_MACHO_HEADR;
if(INITRND == -1)
INITRND = 4096;
if(INITTEXT == -1)
INITTEXT = 4096+HEADR;
if(INITDAT == -1)
INITDAT = 0;
break;
case Hlinux: /* elf64 executable */
case Hfreebsd: /* freebsd */
case Hnetbsd: /* netbsd */
case Hopenbsd: /* openbsd */
/*
* ELF uses TLS offset negative from FS.
* Translate 0(FS) and 8(FS) into -16(FS) and -8(FS).
* Also known to ../../pkg/runtime/sys_linux_amd64.s
* and ../../pkg/runtime/cgo/gcc_linux_amd64.c.
*/
tlsoffset = -16;
elfinit();
HEADR = ELFRESERVE;
if(INITTEXT == -1)
INITTEXT = (1<<22)+HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
case Hwindows: /* PE executable */
peinit();
HEADR = PEFILEHEADR;
if(INITTEXT == -1)
INITTEXT = PEBASE+PESECTHEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = PESECTALIGN;
break;
}
if(INITDAT != 0 && INITRND != 0)
print("warning: -D0x%llux is ignored because of -R0x%ux\n",
INITDAT, INITRND);
if(debug['v'])
Bprint(&bso, "HEADER = -H%d -T0x%llux -D0x%llux -R0x%ux\n",
HEADTYPE, INITTEXT, INITDAT, INITRND);
Bflush(&bso);
instinit();
zprg.link = P;
zprg.pcond = P;
zprg.back = 2;
zprg.as = AGOK;
zprg.from.type = D_NONE;
zprg.from.index = D_NONE;
zprg.from.scale = 1;
zprg.to = zprg.from;
zprg.mode = 64;
pcstr = "%.6llux ";
histgen = 0;
pc = 0;
dtype = 4;
version = 0;
cbp = buf.cbuf;
cbc = sizeof(buf.cbuf);
addlibpath("command line", "command line", argv[0], "main");
loadlib();
deadcode();
patch();
follow();
doelf();
if(HEADTYPE == Hdarwin)
domacho();
dostkoff();
dostkcheck();
paramspace = "SP"; /* (FP) now (SP) on output */
if(debug['p'])
if(debug['1'])
doprof1();
else
doprof2();
span();
if(HEADTYPE == Hwindows)
dope();
addexport();
textaddress();
pclntab();
symtab();
dodata();
address();
doweak();
reloc();
asmb();
undef();
if(debug['v']) {
Bprint(&bso, "%5.2f cpu time\n", cputime());
Bprint(&bso, "%d symbols\n", nsymbol);
Bprint(&bso, "%d sizeof adr\n", sizeof(Adr));
Bprint(&bso, "%d sizeof prog\n", sizeof(Prog));
}
Bflush(&bso);
errorexit();
}
void
main(int argc, char *argv[])
{
char *p;
Sym *s;
Binit(&bso, 1, OWRITE);
listinit();
nerrors = 0;
outfile = "5.out";
HEADTYPE = -1;
INITTEXT = -1;
INITDAT = -1;
INITRND = -1;
INITENTRY = 0;
LIBINITENTRY = 0;
linkmode = LinkInternal; // TODO: LinkAuto once everything works.
nuxiinit();
p = getgoarm();
if(p != nil)
goarm = atoi(p);
else
goarm = 6;
if(goarm == 5)
debug['F'] = 1;
flagcount("1", "use alternate profiling code", &debug['1']);
flagfn1("B", "info: define ELF NT_GNU_BUILD_ID note", addbuildinfo);
flagstr("E", "sym: entry symbol", &INITENTRY);
flagint32("D", "addr: data address", &INITDAT);
flagcount("G", "debug pseudo-ops", &debug['G']);
flagfn1("I", "interp: set ELF interp", setinterp);
flagfn1("L", "dir: add dir to library path", Lflag);
flagfn1("H", "head: header type", setheadtype);
flagcount("K", "add stack underflow checks", &debug['K']);
flagcount("M", "disable software div/mod", &debug['M']);
flagcount("O", "print pc-line tables", &debug['O']);
flagcount("P", "debug code generation", &debug['P']);
flagint32("R", "rnd: address rounding", &INITRND);
flagint32("T", "addr: text address", &INITTEXT);
flagfn0("V", "print version and exit", doversion);
flagcount("W", "disassemble input", &debug['W']);
flagfn2("X", "name value: define string data", addstrdata);
flagcount("Z", "clear stack frame on entry", &debug['Z']);
flagcount("a", "disassemble output", &debug['a']);
flagcount("c", "dump call graph", &debug['c']);
flagcount("d", "disable dynamic executable", &debug['d']);
flagcount("f", "ignore version mismatch", &debug['f']);
flagcount("g", "disable go package data checks", &debug['g']);
flagstr("k", "sym: set field tracking symbol", &tracksym);
flagfn1("linkmode", "mode: set link mode (internal, external, auto)", setlinkmode);
flagcount("n", "dump symbol table", &debug['n']);
flagstr("o", "outfile: set output file", &outfile);
flagcount("p", "insert profiling code", &debug['p']);
flagstr("r", "dir1:dir2:...: set ELF dynamic linker search path", &rpath);
flagcount("race", "enable race detector", &flag_race);
flagcount("s", "disable symbol table", &debug['s']);
flagstr("tmpdir", "leave temporary files in this directory", &tmpdir);
flagcount("u", "reject unsafe packages", &debug['u']);
flagcount("v", "print link trace", &debug['v']);
flagcount("w", "disable DWARF generation", &debug['w']);
flagcount("shared", "generate shared object", &flag_shared);
// TODO: link mode flag
flagparse(&argc, &argv, usage);
if(argc != 1)
usage();
if(linkmode != LinkInternal) {
diag("only -linkmode=internal is supported");
errorexit();
}
libinit();
if(HEADTYPE == -1)
HEADTYPE = headtype(goos);
switch(HEADTYPE) {
default:
diag("unknown -H option");
errorexit();
case Hnoheader: /* no header */
HEADR = 0L;
if(INITTEXT == -1)
INITTEXT = 0;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4;
break;
case Hrisc: /* aif for risc os */
HEADR = 128L;
if(INITTEXT == -1)
INITTEXT = 0x10005000 + HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4;
break;
case Hplan9x32: /* plan 9 */
HEADR = 32L;
if(INITTEXT == -1)
INITTEXT = 4128;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
case Hixp1200: /* boot for IXP1200 */
HEADR = 0L;
if(INITTEXT == -1)
INITTEXT = 0x0;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4;
break;
case Hipaq: /* boot for ipaq */
HEADR = 16L;
if(INITTEXT == -1)
INITTEXT = 0xC0008010;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 1024;
break;
case Hlinux: /* arm elf */
case Hfreebsd:
case Hnetbsd:
debug['d'] = 0; // with dynamic linking
tlsoffset = -8; // hardcoded number, first 4-byte word for g, and then 4-byte word for m
// this number is known to ../../pkg/runtime/cgo/gcc_linux_arm.c
elfinit();
HEADR = ELFRESERVE;
if(INITTEXT == -1)
INITTEXT = 0x10000 + HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
}
if(INITDAT != 0 && INITRND != 0)
print("warning: -D0x%ux is ignored because of -R0x%ux\n",
INITDAT, INITRND);
if(debug['v'])
Bprint(&bso, "HEADER = -H0x%d -T0x%ux -D0x%ux -R0x%ux\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;
pc = 0;
dtype = 4;
version = 0;
cbp = buf.cbuf;
cbc = sizeof(buf.cbuf);
// embed goarm to runtime.goarm
s = lookup("runtime.goarm", 0);
s->dupok = 1;
adduint8(s, goarm);
addlibpath("command line", "command line", argv[0], "main");
loadlib();
// mark some functions that are only referenced after linker code editing
if(debug['F'])
mark(rlookup("_sfloat", 0));
deadcode();
if(textp == nil) {
diag("no code");
errorexit();
}
patch();
if(debug['p'])
if(debug['1'])
doprof1();
else
doprof2();
doelf();
follow();
softfloat();
// 5l -Z means zero the stack frame on entry.
// This slows down function calls but can help avoid
// false positives in garbage collection.
if(debug['Z'])
dozerostk();
noops(); // generate stack split prolog, handle div/mod, etc.
dostkcheck();
span();
addexport();
// textaddress() functionality is handled in span()
pclntab();
symtab();
dodata();
address();
doweak();
reloc();
asmb();
undef();
hostlink();
if(debug['c'])
print("ARM size = %d\n", armsize);
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();
}
