void
asmb(void)
{
Prog *p;
long t, etext;
Optab *o;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
OFFSET = HEADR;
seek(cout, OFFSET, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
asmout(p, o);
pc += o->size;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
/* output strings in text segment */
etext = INITTEXT + textsize;
for(t = pc; t < etext; t += sizeof(buf)-100) {
if(etext-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100, 1);
else
datblk(t, etext-t, 1);
}
curtext = P;
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
case 7:
OFFSET = HEADR+textsize;
seek(cout, OFFSET, 0);
break;
case 3:
case 6: /* no header, padded segments */
OFFSET = rnd(HEADR+textsize, 4096);
seek(cout, OFFSET, 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100, 0);
else
datblk(t, datsize-t, 0);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 1:
case 4:
case 5:
debug['s'] = 1;
break;
case 2:
OFFSET = HEADR+textsize+datsize;
seek(cout, OFFSET, 0);
break;
case 3:
case 6: /* no header, padded segments */
OFFSET += rnd(datsize, 4096);
seek(cout, OFFSET, 0);
break;
case 7:
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f pc\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(dlm)
asmdyn();
cflush();
}
else if(dlm){
seek(cout, HEADR+textsize+datsize, 0);
asmdyn();
cflush();
}
if(debug['v'])
Bprint(&bso, "%5.2f header\n", cputime());
Bflush(&bso);
OFFSET = 0;
seek(cout, OFFSET, 0);
switch(HEADTYPE) {
case 0: /* no header */
case 6: /* no header, padded segments */
break;
case 1: /* aif for risc os */
lputl(0xe1a00000); /* NOP - decompress code */
lputl(0xe1a00000); /* NOP - relocation code */
lputl(0xeb000000 + 12); /* BL - zero init code */
lputl(0xeb000000 +
(entryvalue()
- INITTEXT
+ HEADR
- 12
- 8) / 4); /* BL - entry code */
lputl(0xef000011); /* SWI - exit code */
lputl(textsize+HEADR); /* text size */
lputl(datsize); /* data size */
lputl(0); /* sym size */
lputl(bsssize); /* bss size */
lputl(0); /* sym type */
lputl(INITTEXT-HEADR); /* text addr */
lputl(0); /* workspace - ignored */
lputl(32); /* addr mode / data addr flag */
lputl(0); /* data addr */
for(t=0; t<2; t++)
lputl(0); /* reserved */
for(t=0; t<15; t++)
lputl(0xe1a00000); /* NOP - zero init code */
lputl(0xe1a0f00e); /* B (R14) - zero init return */
break;
case 2: /* plan 9 */
if(dlm)
lput(0x80000000|0x647); /* magic */
else
lput(0x647); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3: /* boot for NetBSD */
lput((143<<16)|0413); /* magic */
lputl(rnd(HEADR+textsize, 4096));
lputl(rnd(datsize, 4096));
lputl(bsssize);
lputl(symsize); /* nsyms */
lputl(entryvalue()); /* va of entry */
lputl(0L);
lputl(0L);
break;
case 4: /* boot for IXP1200 */
break;
case 5: /* boot for ipaq */
lputl(0xe3300000); /* nop */
lputl(0xe3300000); /* nop */
lputl(0xe3300000); /* nop */
lputl(0xe3300000); /* nop */
break;
case 7: /* elf */
debug['S'] = 1; /* symbol table */
elf32(ARM, ELFDATA2LSB, 0, nil);
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
long t;
Optab *o;
long prevpc;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
/* emit text segment */
seek(cout, HEADR, 0);
prevpc = pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
if(p->from3.type == D_CONST) {
for(; pc < p->pc; pc++)
CPUT(0);
}
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(asmout(p, o, 0)) {
p = p->link;
pc += 4;
}
pc += o->size;
if (prevpc & (1<<31) && (pc & (1<<31)) == 0) {
char *tn;
tn = "??none??";
if(curtext != P && curtext->from.sym != S)
tn = curtext->from.sym->name;
Bprint(&bso, "%s: warning: text segment wrapped past 0\n", tn);
}
prevpc = pc;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
/* emit data segment */
curtext = P;
switch(HEADTYPE) {
case 6:
/*
* but first, for virtex 4, inject a jmp instruction after
* other text: branch to absolute entry address (0xfffe2100).
*/
lput((18 << 26) | (0x03FFFFFC & entryvalue()) | 2);
textsize += JMPSZ;
cflush();
/* fall through */
case 0:
case 1:
case 2:
case 5:
seek(cout, HEADR+textsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4), 0);
break;
case 4:
seek(cout, rnd(HEADR+textsize, 4096), 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100);
else
datblk(t, datsize-t);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
case 6:
seek(cout, HEADR+textsize+datsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4)+datsize, 0);
break;
case 4:
seek(cout, rnd(HEADR+textsize, 4096)+datsize, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(dlm)
asmdyn();
if(HEADTYPE == 0 || HEADTYPE == 1) /* round up file length for boot image */
if((symsize+lcsize) & 1)
CPUT(0);
cflush();
}
else if(dlm){
asmdyn();
cflush();
}
/* back up and write the header */
seek(cout, 0L, 0);
switch(HEADTYPE) {
case 0:
lput(0x1030107); /* magic and sections */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 1:
lput(0x4a6f7921); /* Joy! */
lput(0x70656666); /* peff */
lput(0x70777063); /* pwpc */
lput(1);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0x30002); /*YY*/
lput(0);
lput(~0);
lput(0);
lput(textsize+datsize);
lput(textsize+datsize);
lput(textsize+datsize);
lput(0xd0); /* header size */
lput(0x10400);
lput(~0);
lput(0);
lput(0xc);
lput(0xc);
lput(0xc);
lput(0xc0);
lput(0x01010400);
lput(~0);
lput(0);
lput(0x38);
lput(0x38);
lput(0x38);
lput(0x80);
lput(0x04040400);
lput(0);
lput(1);
lput(0);
lput(~0);
lput(0);
lput(~0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0x3100); /* load address */
lput(0);
lput(0);
lput(0); /* whew! */
break;
case 2:
if(dlm)
lput(0x80000000 | (4*21*21+7)); /* magic */
else
lput(4*21*21+7); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3:
break;
case 4:
lput((0x1DFL<<16)|3L); /* magic and sections */
lput(time(0)); /* time and date */
lput(rnd(HEADR+textsize, 4096)+datsize);
lput(symsize); /* nsyms */
lput((0x48L<<16)|15L); /* size of optional hdr and flags */
lput((0413<<16)|01L); /* magic and version */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(entryvalue()); /* va of entry */
lput(INITTEXT); /* va of base of text */
lput(INITDAT); /* va of base of data */
lput(INITDAT); /* address of TOC */
lput((1L<<16)|1); /* sn(entry) | sn(text) */
lput((2L<<16)|1); /* sn(data) | sn(toc) */
lput((0L<<16)|3); /* sn(loader) | sn(bss) */
lput((3L<<16)|3); /* maxalign(text) | maxalign(data) */
lput(('1'<<24)|('L'<<16)|0); /* type field, and reserved */
lput(0); /* max stack allowed */
lput(0); /* max data allowed */
lput(0); lput(0); lput(0); /* reserved */
strnput(".text", 8); /* text segment */
lput(INITTEXT); /* address */
lput(INITTEXT);
lput(textsize);
lput(HEADR);
lput(0L);
lput(HEADR+textsize+datsize+symsize);
lput(lcsize); /* line number size */
lput(0x20L); /* flags */
strnput(".data", 8); /* data segment */
lput(INITDAT); /* address */
lput(INITDAT);
lput(datsize);
lput(rnd(HEADR+textsize, 4096));/* sizes */
lput(0L);
lput(0L);
lput(0L);
lput(0x40L); /* flags */
strnput(".bss", 8); /* bss segment */
lput(INITDAT+datsize); /* address */
lput(INITDAT+datsize);
lput(bsssize);
lput(0L);
lput(0L);
lput(0L);
lput(0L);
lput(0x80L); /* flags */
break;
case 5:
/*
* intended for blue/gene
*/
elf32(POWER, ELFDATA2MSB, 0, nil);
break;
case 6:
/*
* intended for virtex 4 boot
*/
debug['S'] = 1; /* symbol table */
elf32(POWER, ELFDATA2MSB, 1, elf32jmp);
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
long t;
Optab *o;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
seek(cout, HEADR, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(asmout(p, o, 0)) {
p = p->link;
pc += 4;
}
pc += o->size;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
curtext = P;
switch(HEADTYPE) {
case 0:
case 3:
seek(cout, HEADR+textsize, 0);
break;
case 1:
case 2:
seek(cout, HEADR+textsize, 0);
break;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100);
else
datblk(t, datsize-t);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 3:
seek(cout, HEADR+textsize+datsize, 0);
break;
case 2:
case 1:
seek(cout, HEADR+textsize+datsize, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
/* round up file length for boot image */
if(HEADTYPE == 0 || HEADTYPE == 3)
if((symsize+lcsize) & 1)
CPUT(0);
cflush();
}
seek(cout, 0L, 0);
switch(HEADTYPE) {
case 0:
lput(0x1030107); /* magic and sections */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 1:
break;
case 2:
lput(4*13*13+7); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3:
lput(0x1030107); /* magic and sections */
lput(0x90100000);
#define SPARC_NOOP 0x01000000
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
lput(SPARC_NOOP);
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
long t;
Optab *o;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
seek(cout, HEADR, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
if(p->from3.type == D_CONST) {
for(; pc < p->pc; pc++)
CPUT(0);
}
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(asmout(p, o, 0)) {
p = p->link;
pc += 4;
}
pc += o->size;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
curtext = P;
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
seek(cout, HEADR+textsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4), 0);
break;
case 4:
seek(cout, rnd(HEADR+textsize, 4096), 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100);
else
datblk(t, datsize-t);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
seek(cout, HEADR+textsize+datsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4)+datsize, 0);
break;
case 4:
seek(cout, rnd(HEADR+textsize, 4096)+datsize, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(dlm)
asmdyn();
if(HEADTYPE == 0 || HEADTYPE == 1) /* round up file length for boot image */
if((symsize+lcsize) & 1)
CPUT(0);
cflush();
}
else if(dlm){
asmdyn();
cflush();
}
seek(cout, 0L, 0);
switch(HEADTYPE) {
case 0:
lput(0x1030107); /* magic and sections */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 1:
lput(0x4a6f7921); /* Joy! */
lput(0x70656666); /* peff */
lput(0x70777063); /* pwpc */
lput(1);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0x30002); /*YY*/
lput(0);
lput(~0);
lput(0);
lput(textsize+datsize);
lput(textsize+datsize);
lput(textsize+datsize);
lput(0xd0); /* header size */
lput(0x10400);
lput(~0);
lput(0);
lput(0xc);
lput(0xc);
lput(0xc);
lput(0xc0);
lput(0x01010400);
lput(~0);
lput(0);
lput(0x38);
lput(0x38);
lput(0x38);
lput(0x80);
lput(0x04040400);
lput(0);
lput(1);
lput(0);
lput(~0);
lput(0);
lput(~0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0x3100); /* load address */
lput(0);
lput(0);
lput(0); /* whew! */
break;
case 2:
if(dlm)
lput(0x80000000 | (4*21*21+7)); /* magic */
else
lput(4*21*21+7); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3:
break;
case 4:
lput((0x1DFL<<16)|3L); /* magic and sections */
lput(time(0)); /* time and date */
lput(rnd(HEADR+textsize, 4096)+datsize);
lput(symsize); /* nsyms */
lput((0x48L<<16)|15L); /* size of optional hdr and flags */
lput((0413<<16)|01L); /* magic and version */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(entryvalue()); /* va of entry */
lput(INITTEXT); /* va of base of text */
lput(INITDAT); /* va of base of data */
lput(INITDAT); /* address of TOC */
lput((1L<<16)|1); /* sn(entry) | sn(text) */
lput((2L<<16)|1); /* sn(data) | sn(toc) */
lput((0L<<16)|3); /* sn(loader) | sn(bss) */
lput((3L<<16)|3); /* maxalign(text) | maxalign(data) */
lput(('1'<<24)|('L'<<16)|0); /* type field, and reserved */
lput(0); /* max stack allowed */
lput(0); /* max data allowed */
lput(0); lput(0); lput(0); /* reserved */
strnput(".text", 8); /* text segment */
lput(INITTEXT); /* address */
lput(INITTEXT);
lput(textsize);
lput(HEADR);
lput(0L);
lput(HEADR+textsize+datsize+symsize);
lput(lcsize); /* line number size */
lput(0x20L); /* flags */
strnput(".data", 8); /* data segment */
lput(INITDAT); /* address */
lput(INITDAT);
lput(datsize);
lput(rnd(HEADR+textsize, 4096));/* sizes */
lput(0L);
lput(0L);
lput(0L);
lput(0x40L); /* flags */
strnput(".bss", 8); /* bss segment */
lput(INITDAT+datsize); /* address */
lput(INITDAT+datsize);
lput(bsssize);
lput(0L);
lput(0L);
lput(0L);
lput(0L);
lput(0x80L); /* flags */
break;
case 5:
strnput("\177ELF", 4); /* e_ident */
CPUT(1); /* class = 32 bit */
CPUT(2); /* data = MSB */
CPUT(1); /* version = CURRENT */
strnput("", 9);
lput((2L<<16)|20L); /* type = EXEC; machine = PowerPC */
lput(1L); /* version = CURRENT */
lput(entryvalue() & ~KMASK); /* entry vaddr */
lput(52L); /* offset to first phdr */
lput(0L); /* offset to first shdr */
lput(0L); /* flags = PPC */
lput((52L<<16)|32L); /* Ehdr & Phdr sizes*/
lput((3L<<16)|0L); /* # Phdrs & Shdr size */
lput((0L<<16)|0L); /* # Shdrs & shdr string size */
lput(1L); /* text - type = PT_LOAD */
lput(HEADR); /* file offset */
lput(INITTEXT & ~KMASK); /* vaddr */
lput(INITTEXT); /* paddr */
lput(textsize); /* file size */
lput(textsize); /* memory size */
lput(0x05L); /* protections = RX */
lput(0x10000L); /* alignment */
lput(1L); /* data - type = PT_LOAD */
lput(HEADR+textsize); /* file offset */
lput(INITDAT & ~KMASK); /* vaddr */
lput(INITDAT); /* paddr */
lput(datsize); /* file size */
lput(datsize); /* memory size */
lput(0x07L); /* protections = RWX */
lput(0x10000L); /* alignment */
lput(0L); /* data - type = PT_NULL */
lput(HEADR+textsize+datsize); /* file offset */
lput(0L);
lput(0L);
lput(symsize); /* symbol table size */
lput(lcsize); /* line number size */
lput(0x04L); /* protections = R */
lput(0x04L); /* alignment code?? */
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
long t, magic;
Optab *o;
vlong vl;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
seek(cout, HEADR, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 8;
if(p->from3.type == D_CONST) {
for(; pc < p->pc; pc++)
CPUT(0);
}
}
if(p->pc != pc) {
diag("phase error %llux sb %llux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(asmout(p, o, 0)) {
p = p->link;
pc += 4;
}
pc += o->size;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
curtext = P;
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
case 9:
case 10:
seek(cout, HEADR+textsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4), 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100);
else
datblk(t, datsize-t);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
case 9:
case 10:
seek(cout, HEADR+textsize+datsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4)+datsize, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(dlm)
asmdyn();
if(HEADTYPE == 0 || HEADTYPE == 1) /* round up file length for boot image */
if((symsize+lcsize) & 1)
CPUT(0);
cflush();
}
else if(dlm){
asmdyn();
cflush();
}
seek(cout, 0L, 0);
switch(HEADTYPE) {
case 0:
lput(0x1030107); /* magic and sections */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 1:
if(dlm)
lput(0x80000000 | (4*21*21+7)); /* q.out magic */
else
lput(4*21*21+7); /* q.out magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 2: /* plan9 */
magic = 4*27*27+7;
magic |= 0x00008000; /* fat header */
if(dlm)
magic |= 0x80000000; /* dlm */
lput(magic);
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
vl = entryvalue();
lput(PADDR(vl)); /* va of entry (real mode on boot) */
lput(0L);
lput(lcsize);
llput(vl); /* va of entry */
break;
case 3:
break;
case 5:
elf32(POWER, ELFDATA2MSB, 0, nil);
break;
case 9: /* ELF64 Header */
case 10: /* A2 weirdness */
elf64(POWER64, ELFDATA2MSB, 0, nil);
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
long v;
int a;
short *op1;
if(debug['v'])
Bprint(&bso, "%5.2f asmb\n", cputime());
Bflush(&bso);
seek(cout, HEADR, 0);
pc = INITTEXT;
curp = firstp;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT)
curtext = p;
if(p->pc != pc) {
if(!debug['a'])
print("%P\n", curp);
diag("phase error %.4lux sb %.4lux in %s", p->pc, pc, TNAME);
pc = p->pc;
}
curp = p;
if(debug['a'])
Bprint(&bso, "%lux:%P\n", pc, curp);
asmins(p);
if(cbc < sizeof(opa))
cflush();
for(op1 = opa; op1 < op; op1++) {
a = *op1;
*cbp++ = a >> 8;
*cbp++ = a;
}
a = 2*(op - opa);
pc += a;
cbc -= a;
if(debug['a']) {
for(op1 = opa; op1 < op; op1++)
if(op1 == opa)
Bprint(&bso, "\t\t%4ux", *op1 & 0xffff);
else
Bprint(&bso, " %4ux", *op1 & 0xffff);
if(op != opa)
Bprint(&bso, "\n");
}
}
cflush();
switch(HEADTYPE) {
case 0: /* this is garbage */
seek(cout, rnd(HEADR+textsize, 8192), 0);
break;
case 1: /* plan9 boot data goes into text */
seek(cout, rnd(HEADR+textsize, INITRND), 0);
break;
case 2: /* plan 9 */
seek(cout, HEADR+textsize, 0);
break;
case 3: /* next boot */
seek(cout, HEADR+rnd(textsize, INITRND), 0);
break;
case 4: /* preprocess pilot */
seek(cout, HEADR+textsize, 0);
break;
}
if(debug['v'])
Bprint(&bso, "%5.2f datblk\n", cputime());
Bflush(&bso);
for(v = 0; v < datsize; v += sizeof(buf)-100) {
if(datsize-v > sizeof(buf)-100)
datblk(v, sizeof(buf)-100);
else
datblk(v, datsize-v);
}
symsize = 0;
spsize = 0;
lcsize = 0;
relocsize = 0;
Bflush(&bso);
switch(HEADTYPE) {
default:
seek(cout, rnd(HEADR+textsize, 8192)+datsize, 0);
break;
case 1: /* plan9 boot data goes into text */
seek(cout, rnd(HEADR+textsize, INITRND)+datsize, 0);
break;
case 2: /* plan 9 */
seek(cout, HEADR+textsize+datsize, 0);
break;
case 3: /* next boot */
seek(cout, HEADR+rnd(textsize, INITRND)+datsize, 0);
break;
case 4: /* preprocess pilot */
seek(cout, HEADR+textsize+datsize, 0);
break;
}
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
asmsym();
}
Bflush(&bso);
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
asmsp();
}
Bflush(&bso);
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f pc\n", cputime());
asmlc();
}
Bflush(&bso);
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f reloc\n", cputime());
asmreloc();
}
cflush();
if(debug['v'])
Bprint(&bso, "%5.2f headr\n", cputime());
Bflush(&bso);
seek(cout, 0L, 0);
switch(HEADTYPE) {
default:
lput(0x160L<<16); /* magic and sections */
lput(0L); /* time and date */
lput(rnd(HEADR+textsize, 4096)+datsize);
lput(symsize); /* nsyms */
lput((0x38L<<16)|7L); /* size of optional hdr and flags */
lput((0413<<16)|0437L); /* magic and version */
lput(rnd(HEADR+textsize, 4096)); /* sizes */
lput(datsize);
lput(bsssize);
lput(entryvalue()); /* va of entry */
lput(INITTEXT-HEADR); /* va of base of text */
lput(INITDAT); /* va of base of data */
lput(INITDAT+datsize); /* va of base of bss */
lput(~0L); /* gp reg mask */
lput(0L);
lput(0L);
lput(0L);
lput(0L);
lput(~0L); /* gp value ?? */
break;
case 1: /* plan9 boot data goes into text */
lput(0407); /* magic */
lput(rnd(HEADR+textsize, INITRND)-HEADR+datsize); /* sizes */
lput(0);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(spsize); /* sp offsets */
lput(lcsize); /* line offsets */
break;
case 2: /* plan 9 */
lput(0407); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(spsize); /* sp offsets */
lput(lcsize); /* line offsets */
break;
case 3: /* next boot */
/* header */
lput(0xfeedfaceL); /* magic */
lput(6); /* 68040 */
lput(1); /* more 68040 */
lput(5); /* file type 'boot' */
lput(HEADTYPE); /* number commands */
lput(HEADR-7*4); /* sizeof commands */
lput(1); /* no undefineds */
/* command 1 text */
lput(1); /* command = 'segment' */
lput(124); /* command size */
s16put("__TEXT");
/* botch?? entryvalue() */
lput(INITTEXT); /* va of start */
lput(rnd(textsize, 8192)); /* va size */
lput(HEADR); /* file offset */
lput(rnd(textsize, 8192)); /* file size */
lput(7); /* max prot */
lput(7); /* init prot */
lput(1); /* number of sections */
lput(0); /* flags */
/* text section */
s16put("__text");
s16put("__TEXT");
/* botch?? entryvalue() */
lput(INITTEXT); /* va of start */
lput(textsize); /* va size */
lput(HEADR); /* file offset */
lput(2); /* align */
lput(0); /* reloff */
lput(0); /* nreloc */
lput(0); /* flags */
lput(0); /* reserved1 */
lput(0); /* reserved2 */
/* command 1 data */
lput(1); /* command = 'segment' */
lput(192); /* command size */
s16put("__DATA");
lput(INITDAT); /* va of start */
lput(rnd(datsize, 8192)); /* va size */
lput(HEADR+rnd(textsize, 8192)); /* file offset */
lput(rnd(datsize, 8192)); /* file size */
lput(7); /* max prot */
lput(7); /* init prot */
lput(2); /* number of sections */
lput(0); /* flags */
/* data section */
s16put("__data");
s16put("__DATA");
lput(INITDAT); /* va of start */
lput(datsize); /* va size */
lput(HEADR+rnd(textsize, 8192)); /* file offset */
lput(2); /* align */
lput(0); /* reloff */
lput(0); /* nreloc */
lput(0); /* flags */
lput(0); /* reserved1 */
lput(0); /* reserved2 */
/* bss section */
s16put("__bss");
s16put("__DATA");
lput(INITDAT+datsize); /* va of start */
lput(bsssize); /* va size */
lput(0); /* file offset */
lput(2); /* align */
lput(0); /* reloff */
lput(0); /* nreloc */
lput(1); /* flags = zero fill */
lput(0); /* reserved1 */
lput(0); /* reserved2 */
/* command 2 symbol */
lput(2); /* command = 'symbol' */
lput(24); /* command size */
lput(HEADR+rnd(textsize, INITRND)
+datsize); /* symoff */
lput(symsize); /* nsyms */
lput(spsize); /* sp offsets */
lput(lcsize); /* line offsets */
break;
case 4: /* preprocess pilot */
lput(0407); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(spsize); /* sp offsets */
lput(lcsize); /* line offsets */
lput(relocsize); /* relocation */
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
long t;
Optab *o;
long prevpc;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
/* emit text segment */
seek(cout, HEADR, 0);
prevpc = pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
if(p->from3.type == D_CONST) {
for(; pc < p->pc; pc++)
CPUT(0);
}
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(asmout(p, o, 0)) {
p = p->link;
pc += 4;
}
pc += o->size;
if (prevpc & (1<<31) && (pc & (1<<31)) == 0) {
char *tn;
tn = "?none?";
if(curtext != P && curtext->from.sym != S)
tn = curtext->from.sym->name;
Bprint(&bso, "%s: warning: text segment wrapped past 0\n", tn);
}
prevpc = pc;
}
/* for virtex 4, inject a jmp instruction after other text */
if(HEADTYPE == 6)
/* branch to absolute entry address (0xfffe2100) */
lput((18 << 26) | (0x03FFFFFC & entryvalue()) | 2);
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
/* emit data segment */
curtext = P;
switch(HEADTYPE) {
case 6:
textsize += JMPSZ;
/* fall through */
case 0:
case 1:
case 2:
case 5:
seek(cout, HEADR+textsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4), 0);
break;
case 4:
seek(cout, rnd(HEADR+textsize, 4096), 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100);
else
datblk(t, datsize-t);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
case 6:
seek(cout, HEADR+textsize+datsize, 0);
break;
case 3:
seek(cout, rnd(HEADR+textsize, 4)+datsize, 0);
break;
case 4:
seek(cout, rnd(HEADR+textsize, 4096)+datsize, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f sp\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(dlm)
asmdyn();
if(HEADTYPE == 0 || HEADTYPE == 1) /* round up file length for boot image */
if((symsize+lcsize) & 1)
CPUT(0);
cflush();
}
else if(dlm){
asmdyn();
cflush();
}
/* back up and write the header */
seek(cout, 0L, 0);
switch(HEADTYPE) {
case 0:
lput(0x1030107); /* magic and sections */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 1:
lput(0x4a6f7921); /* Joy! */
lput(0x70656666); /* peff */
lput(0x70777063); /* pwpc */
lput(1);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0x30002); /*YY*/
lput(0);
lput(~0);
lput(0);
lput(textsize+datsize);
lput(textsize+datsize);
lput(textsize+datsize);
lput(0xd0); /* header size */
lput(0x10400);
lput(~0);
lput(0);
lput(0xc);
lput(0xc);
lput(0xc);
lput(0xc0);
lput(0x01010400);
lput(~0);
lput(0);
lput(0x38);
lput(0x38);
lput(0x38);
lput(0x80);
lput(0x04040400);
lput(0);
lput(1);
lput(0);
lput(~0);
lput(0);
lput(~0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0);
lput(0x3100); /* load address */
lput(0);
lput(0);
lput(0); /* whew! */
break;
case 2:
if(dlm)
lput(0x80000000 | (4*21*21+7)); /* magic */
else
lput(4*21*21+7); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3:
break;
case 4:
lput((0x1DFL<<16)|3L); /* magic and sections */
lput(time(0)); /* time and date */
lput(rnd(HEADR+textsize, 4096)+datsize);
lput(symsize); /* nsyms */
lput((0x48L<<16)|15L); /* size of optional hdr and flags */
lput((0413<<16)|01L); /* magic and version */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(entryvalue()); /* va of entry */
lput(INITTEXT); /* va of base of text */
lput(INITDAT); /* va of base of data */
lput(INITDAT); /* address of TOC */
lput((1L<<16)|1); /* sn(entry) | sn(text) */
lput((2L<<16)|1); /* sn(data) | sn(toc) */
lput((0L<<16)|3); /* sn(loader) | sn(bss) */
lput((3L<<16)|3); /* maxalign(text) | maxalign(data) */
lput(('1'<<24)|('L'<<16)|0); /* type field, and reserved */
lput(0); /* max stack allowed */
lput(0); /* max data allowed */
lput(0); lput(0); lput(0); /* reserved */
strnput(".text", 8); /* text segment */
lput(INITTEXT); /* address */
lput(INITTEXT);
lput(textsize);
lput(HEADR);
lput(0L);
lput(HEADR+textsize+datsize+symsize);
lput(lcsize); /* line number size */
lput(0x20L); /* flags */
strnput(".data", 8); /* data segment */
lput(INITDAT); /* address */
lput(INITDAT);
lput(datsize);
lput(rnd(HEADR+textsize, 4096));/* sizes */
lput(0L);
lput(0L);
lput(0L);
lput(0x40L); /* flags */
strnput(".bss", 8); /* bss segment */
lput(INITDAT+datsize); /* address */
lput(INITDAT+datsize);
lput(bsssize);
lput(0L);
lput(0L);
lput(0L);
lput(0L);
lput(0x80L); /* flags */
break;
case 5:
/*
* customised for blue/gene,
* notably the alignment and KMASK masking.
*/
strnput("\177ELF", 4); /* e_ident */
CPUT(1); /* class = 32 bit */
CPUT(2); /* data = MSB */
CPUT(1); /* version = CURRENT */
strnput("", 9);
lput((2L<<16)|20L); /* type = EXEC; machine = PowerPC */
lput(1L); /* version = CURRENT */
lput(entryvalue() & ~KMASK); /* entry vaddr */
lput(52L); /* offset to first phdr */
if(debug['S']){
lput(HEADR+textsize+datsize+symsize); /* offset to first shdr */
lput(0L); /* flags = PPC */
lput((52L<<16)|32L); /* Ehdr & Phdr sizes*/
lput((3L<<16)|40L); /* # Phdrs & Shdr size */
lput((3L<<16)|2L); /* # Shdrs & shdr string size */
}
else{
lput(0L);
lput(0L); /* flags = PPC */
lput((52L<<16)|32L); /* Ehdr & Phdr sizes*/
lput((3L<<16)|0L); /* # Phdrs & Shdr size */
lput((3L<<16)|0L); /* # Shdrs & shdr string size */
}
lput(1L); /* text - type = PT_LOAD */
lput(HEADR); /* file offset */
lput(INITTEXT & ~KMASK); /* vaddr */
lput(INITTEXT); /* paddr */
lput(textsize); /* file size */
lput(textsize); /* memory size */
lput(0x05L); /* protections = RX */
lput(0x10000L); /* alignment */
lput(1L); /* data - type = PT_LOAD */
lput(HEADR+textsize); /* file offset */
lput(INITDAT & ~KMASK); /* vaddr */
lput(INITDAT); /* paddr */
lput(datsize); /* file size */
lput(datsize); /* memory size */
lput(0x07L); /* protections = RWX */
lput(0x10000L); /* alignment */
lput(0L); /* data - type = PT_NULL */
lput(HEADR+textsize+datsize); /* file offset */
lput(0L); /* vaddr */
lput(0L); /* paddr */
lput(symsize); /* symbol table size */
lput(lcsize); /* line number size */
lput(0x04L); /* protections = R */
lput(0x04L); /* alignment code?? */
cflush();
if(!debug['S'])
break;
seek(cout, HEADR+textsize+datsize+symsize, 0);
lput(1); /* Section name (string tbl index) */
lput(1); /* Section type */
lput(2|4); /* Section flags */
lput(INITTEXT & ~KMASK); /* Section virtual addr at execution */
lput(HEADR); /* Section file offset */
lput(textsize); /* Section size in bytes */
lput(0); /* Link to another section */
lput(0); /* Additional section information */
lput(0x10000L); /* Section alignment */
lput(0); /* Entry size if section holds table */
lput(7); /* Section name (string tbl index) */
lput(1); /* Section type */
lput(2|1); /* Section flags */
lput(INITDAT & ~KMASK); /* Section virtual addr at execution */
lput(HEADR+textsize); /* Section file offset */
lput(datsize); /* Section size in bytes */
lput(0); /* Link to another section */
lput(0); /* Additional section information */
lput(0x10000L); /* Section alignment */
lput(0); /* Entry size if section holds table */
/* string section header */
lput(12); /* Section name (string tbl index) */
lput(3); /* Section type */
lput(1 << 5); /* Section flags */
lput(0); /* Section virtual addr at execution */
lput(HEADR+textsize+datsize+symsize+3*40); /* Section file offset */
lput(14); /* Section size in bytes */
lput(0); /* Link to another section */
lput(0); /* Additional section information */
lput(1); /* Section alignment */
lput(0); /* Entry size if section holds table */
/* string table */
cput(0);
strnput(".text", 5);
cput(0);
strnput(".data", 5);
cput(0);
strnput(".strtab", 7);
cput(0);
cput(0);
break;
case 6:
/*
* customised for virtex 4 boot,
* notably the alignment and KMASK masking.
*/
strnput("\177ELF", 4); /* e_ident */
CPUT(1); /* class = 32 bit */
CPUT(2); /* data = MSB */
CPUT(1); /* version = CURRENT */
strnput("", 9);
lput((2L<<16)|20L); /* type = EXEC; machine = PowerPC */
lput(1L); /* version = CURRENT */
lput(entryvalue()); /* entry vaddr */
lput(52L); /* offset to first phdr */
debug['S'] = 1; /* no symbol table */
if(debug['S']){
lput(HEADR+textsize+datsize+symsize); /* offset to first shdr */
lput(0L); /* flags = PPC */
lput((52L<<16)|32L); /* Ehdr & Phdr sizes*/
lput((4L<<16)|40L); /* # Phdrs & Shdr size */
lput((4L<<16)|2L); /* # Shdrs & shdr string size */
}
else{
lput(0L);
lput(0L); /* flags = PPC */
lput((52L<<16)|32L); /* Ehdr & Phdr sizes*/
lput((4L<<16)|0L); /* # Phdrs & Shdr size */
lput((4L<<16)|0L); /* # Shdrs & shdr string size */
}
lput(1L); /* text - type = PT_LOAD */
lput(HEADR); /* file offset */
lput(INITTEXT); /* vaddr */
lput(INITTEXT); /* paddr */
lput(textsize-JMPSZ); /* file size */
lput(textsize-JMPSZ); /* memory size */
lput(0x05L); /* protections = RX */
lput(0); /* alignment */
lput(1L); /* data - type = PT_LOAD */
lput(HEADR+textsize); /* file offset */
lput(INITDAT); /* vaddr */
lput(INITDAT); /* paddr */
lput(datsize); /* file size */
lput(datsize+bsssize); /* memory size */
lput(0x07L); /* protections = RWX */
lput(0); /* alignment */
lput(0L); /* data - type = PT_NULL */
lput(HEADR+textsize+datsize); /* file offset */
lput(0L); /* vaddr */
lput(0L); /* paddr */
lput(symsize); /* symbol table size */
lput(lcsize); /* line number size */
lput(0x04L); /* protections = R */
lput(0x04L); /* alignment code?? */
/* add tiny text section at end with jmp to start */
lput(1L); /* text - type = PT_LOAD */
lput(HEADR+textsize-JMPSZ); /* file offset */
lput(0xFFFFFFFC); /* vaddr */
lput(0xFFFFFFFC); /* paddr */
lput(JMPSZ); /* file size */
lput(JMPSZ); /* memory size */
lput(0x05L); /* protections = RX */
lput(0); /* disable alignment */
cflush();
break;
}
cflush();
}
void
asmb(void)
{
Prog *p;
int32 t, etext;
int np;
vlong va, fo, w, symo;
int strtabsize;
vlong symdatva = 0x99LL<<24;
Optab *o;
strtabsize = 0;
symo = 0;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
OFFSET = HEADR;
seek(cout, OFFSET, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
setarch(p);
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + 4;
}
if(p->pc != pc) {
diag("phase error %lux sb %lux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
if(thumb)
thumbasmout(p, o);
else
asmout(p, o);
pc += o->size;
}
while(pc-INITTEXT < textsize) {
cput(0);
pc++;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
/* output strings in text segment */
etext = INITTEXT + textsize;
for(t = pc; t < etext; t += sizeof(buf)-100) {
if(etext-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100, 1);
else
datblk(t, etext-t, 1);
}
/* output section header strings */
curtext = P;
switch(HEADTYPE) {
case 0:
case 1:
case 2:
case 5:
OFFSET = HEADR+textsize;
seek(cout, OFFSET, 0);
break;
case 3:
OFFSET = rnd(HEADR+textsize, 4096);
seek(cout, OFFSET, 0);
break;
case 6:
seek(cout, rnd(HEADR+textsize, INITRND)+datsize, 0);
strtabsize = linuxstrtable();
cflush();
t = rnd(HEADR+textsize, INITRND);
seek(cout, t, 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100, 0);
else
datblk(t, datsize-t, 0);
}
cflush();
/* output symbol table */
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
case 1:
case 4:
case 5:
debug['s'] = 1;
break;
case 2:
OFFSET = HEADR+textsize+datsize;
seek(cout, OFFSET, 0);
break;
case 3:
OFFSET += rnd(datsize, 4096);
seek(cout, OFFSET, 0);
break;
case 6:
symo = rnd(HEADR+textsize, INITRND)+datsize+strtabsize;
symo = rnd(symo, INITRND);
seek(cout, symo + 8, 0);
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f pc\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(!debug['s'])
asmthumbmap();
if(dlm)
asmdyn();
cflush();
}
else if(dlm){
seek(cout, HEADR+textsize+datsize, 0);
asmdyn();
cflush();
}
curtext = P;
if(debug['v'])
Bprint(&bso, "%5.2f header\n", cputime());
Bflush(&bso);
OFFSET = 0;
seek(cout, OFFSET, 0);
switch(HEADTYPE) {
case 0: /* no header */
break;
case 1: /* aif for risc os */
lputl(0xe1a00000); /* NOP - decompress code */
lputl(0xe1a00000); /* NOP - relocation code */
lputl(0xeb000000 + 12); /* BL - zero init code */
lputl(0xeb000000 +
(entryvalue()
- INITTEXT
+ HEADR
- 12
- 8) / 4); /* BL - entry code */
lputl(0xef000011); /* SWI - exit code */
lputl(textsize+HEADR); /* text size */
lputl(datsize); /* data size */
lputl(0); /* sym size */
lputl(bsssize); /* bss size */
lputl(0); /* sym type */
lputl(INITTEXT-HEADR); /* text addr */
lputl(0); /* workspace - ignored */
lputl(32); /* addr mode / data addr flag */
lputl(0); /* data addr */
for(t=0; t<2; t++)
lputl(0); /* reserved */
for(t=0; t<15; t++)
lputl(0xe1a00000); /* NOP - zero init code */
lputl(0xe1a0f00e); /* B (R14) - zero init return */
break;
case 2: /* plan 9 */
if(dlm)
lput(0x80000000|0x647); /* magic */
else
lput(0x647); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
lput(entryvalue()); /* va of entry */
lput(0L);
lput(lcsize);
break;
case 3: /* boot for NetBSD */
lput((143<<16)|0413); /* magic */
lputl(rnd(HEADR+textsize, 4096));
lputl(rnd(datsize, 4096));
lputl(bsssize);
lputl(symsize); /* nsyms */
lputl(entryvalue()); /* va of entry */
lputl(0L);
lputl(0L);
break;
case 4: /* boot for IXP1200 */
break;
case 5: /* boot for ipaq */
lputl(0xe3300000); /* nop */
lputl(0xe3300000); /* nop */
lputl(0xe3300000); /* nop */
lputl(0xe3300000); /* nop */
break;
case 6:
/* elf arm */
strnput("\177ELF", 4); /* e_ident */
cput(1); /* class = 32 bit */
cput(1); /* data = LSB */
cput(1); /* version = CURRENT */
strnput("", 9);
wputl(2); /* type = EXEC */
wputl(40); /* machine = ARM */
lputl(1L); /* version = CURRENT */
lputl(entryvalue()); /* entry vaddr */
lputl(52L); /* offset to first phdr */
np = 3;
if(!debug['s'])
np++;
lputl(52L+32*np); /* offset to first shdr */
lputl(0L); /* processor specific flags */
wputl(52); /* Ehdr size */
wputl(32); /* Phdr size */
wputl(np); /* # of Phdrs */
wputl(40); /* Shdr size */
if (!debug['s'])
wputl(7); /* # of Shdrs */
else
wputl(5); /* # of Shdrs */
wputl(4); /* Shdr with strings */
fo = 0;
va = INITTEXT & ~((vlong)INITRND - 1);
w = HEADR+textsize;
linuxphdr(1, /* text - type = PT_LOAD */
1L+4L, /* text - flags = PF_X+PF_R */
0, /* file offset */
va, /* vaddr */
va, /* paddr */
w, /* file size */
w, /* memory size */
INITRND); /* alignment */
fo = rnd(fo+w, INITRND);
va = rnd(va+w, INITRND);
w = datsize;
linuxphdr(1, /* data - type = PT_LOAD */
2L+4L, /* data - flags = PF_W+PF_R */
fo, /* file offset */
va, /* vaddr */
va, /* paddr */
w, /* file size */
w+bsssize, /* memory size */
INITRND); /* alignment */
if(!debug['s']) {
linuxphdr(1, /* data - type = PT_LOAD */
2L+4L, /* data - flags = PF_W+PF_R */
symo, /* file offset */
symdatva, /* vaddr */
symdatva, /* paddr */
8+symsize+lcsize, /* file size */
8+symsize+lcsize, /* memory size */
INITRND); /* alignment */
}
linuxphdr(0x6474e551, /* gok - type = gok */
1L+2L+4L, /* gok - flags = PF_X+PF_W+PF_R */
0, /* file offset */
0, /* vaddr */
0, /* paddr */
0, /* file size */
0, /* memory size */
8); /* alignment */
linuxshdr(nil, /* name */
0, /* type */
0, /* flags */
0, /* addr */
0, /* off */
0, /* size */
0, /* link */
0, /* info */
0, /* align */
0); /* entsize */
stroffset = 1; /* 0 means no name, so start at 1 */
fo = HEADR;
va = (INITTEXT & ~((vlong)INITRND - 1)) + HEADR;
w = textsize;
linuxshdr(".text", /* name */
1, /* type */
6, /* flags */
va, /* addr */
fo, /* off */
w, /* size */
0, /* link */
0, /* info */
8, /* align */
0); /* entsize */
fo = rnd(fo+w, INITRND);
va = rnd(va+w, INITRND);
w = datsize;
linuxshdr(".data", /* name */
1, /* type */
3, /* flags */
va, /* addr */
fo, /* off */
w, /* size */
0, /* link */
0, /* info */
8, /* align */
0); /* entsize */
fo += w;
va += w;
w = bsssize;
linuxshdr(".bss", /* name */
8, /* type */
3, /* flags */
va, /* addr */
fo, /* off */
w, /* size */
0, /* link */
0, /* info */
8, /* align */
0); /* entsize */
w = strtabsize;
linuxshdr(".shstrtab", /* name */
3, /* type */
0, /* flags */
0, /* addr */
fo, /* off */
w, /* size */
0, /* link */
0, /* info */
1, /* align */
0); /* entsize */
if (debug['s'])
break;
fo = symo+8;
w = symsize;
linuxshdr(".gosymtab", /* name */
1, /* type 1 = SHT_PROGBITS */
0, /* flags */
0, /* addr */
fo, /* off */
w, /* size */
0, /* link */
0, /* info */
1, /* align */
24); /* entsize */
fo += w;
w = lcsize;
linuxshdr(".gopclntab", /* name */
1, /* type 1 = SHT_PROGBITS*/
0, /* flags */
0, /* addr */
fo, /* off */
w, /* size */
0, /* link */
0, /* info */
1, /* align */
24); /* entsize */
break;
}
cflush();
if(debug['c']){
print("textsize=%ld\n", textsize);
print("datsize=%ld\n", datsize);
print("bsssize=%ld\n", bsssize);
print("symsize=%ld\n", symsize);
print("lcsize=%ld\n", lcsize);
print("total=%ld\n", textsize+datsize+bsssize+symsize+lcsize);
}
}
void
asmb(void)
{
Prog *p;
long magic, t, etext;
vlong vl;
Optab *o;
if(debug['v'])
Bprint(&bso, "%5.2f asm\n", cputime());
Bflush(&bso);
OFFSET = HEADR;
seek(cout, OFFSET, 0);
pc = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT) {
curtext = p;
autosize = p->to.offset + PCSZ;
}
if(p->as == ADWORD && (pc & 7) != 0) {
lputl(0);
pc += 4;
}
if(p->pc != pc) {
diag("phase error %llux sb %llux",
p->pc, pc);
if(!debug['a'])
prasm(curp);
pc = p->pc;
}
curp = p;
o = oplook(p); /* could probably avoid this call */
asmout(p, o);
pc += o->size;
}
if(debug['a'])
Bprint(&bso, "\n");
Bflush(&bso);
cflush();
/* output strings in text segment */
etext = INITTEXT + textsize;
for(t = pc; t < etext; t += sizeof(buf)-100) {
if(etext-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100, 1);
else
datblk(t, etext-t, 1);
}
curtext = P;
switch(HEADTYPE) {
case 0:
case 2:
case 7:
OFFSET = HEADR+textsize;
seek(cout, OFFSET, 0);
break;
case 6: /* no header, padded segments */
OFFSET = rnd(HEADR+textsize, 4096);
seek(cout, OFFSET, 0);
break;
}
if(dlm){
char buf[8];
write(cout, buf, INITDAT-textsize);
textsize = INITDAT;
}
for(t = 0; t < datsize; t += sizeof(buf)-100) {
if(datsize-t > sizeof(buf)-100)
datblk(t, sizeof(buf)-100, 0);
else
datblk(t, datsize-t, 0);
}
symsize = 0;
lcsize = 0;
if(!debug['s']) {
if(debug['v'])
Bprint(&bso, "%5.2f sym\n", cputime());
Bflush(&bso);
switch(HEADTYPE) {
case 0:
debug['s'] = 1;
break;
case 2:
OFFSET = HEADR+textsize+datsize;
seek(cout, OFFSET, 0);
break;
case 6: /* no header, padded segments */
OFFSET += rnd(datsize, 4096);
seek(cout, OFFSET, 0);
break;
case 7:
break;
}
if(!debug['s'])
asmsym();
if(debug['v'])
Bprint(&bso, "%5.2f pc\n", cputime());
Bflush(&bso);
if(!debug['s'])
asmlc();
if(dlm)
asmdyn();
cflush();
}
else if(dlm){
seek(cout, HEADR+textsize+datsize, 0);
asmdyn();
cflush();
}
if(debug['v'])
Bprint(&bso, "%5.2f header\n", cputime());
Bflush(&bso);
OFFSET = 0;
seek(cout, OFFSET, 0);
switch(HEADTYPE) {
case 0: /* no header */
case 6: /* no header, padded segments */
break;
case 2: /* plan 9 */
magic = 4*28*28+7;
magic |= 0x00008000; /* fat header */
if(dlm)
magic |= 0x80000000; /* dlm */
lput(magic); /* magic */
lput(textsize); /* sizes */
lput(datsize);
lput(bsssize);
lput(symsize); /* nsyms */
vl = entryvalue();
lput(PADDR(vl)); /* va of entry */
lput(0L);
lput(lcsize);
llput(vl); /* va of entry */
break;
case 7: /* elf */
debug['S'] = 1; /* symbol table */
elf64(ARM64, ELFDATA2LSB, 0, nil);
break;
}
cflush();
}