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Get llama.com building as an aarch64 native binary

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Justine Tunney 2023-05-09 12:14:57 -07:00
parent d04430f4ef
commit 4c093155a3
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GPG key ID: BE714B4575D6E328
40 changed files with 7842 additions and 11683 deletions
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28
tool/build/lib/elfwriter.c
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@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "tool/build/lib/elfwriter.h"
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/elf/def.h"
@ -30,7 +31,6 @@
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/prot.h"
#include "libc/x/xasprintf.h"
#include "tool/build/lib/elfwriter.h"
static const Elf64_Ehdr kObjHeader = {
.e_ident = {ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3, ELFCLASS64, ELFDATA2LSB, 1,
@ -166,6 +166,15 @@ struct ElfWriter *elfwriter_open(const char *path, int mode) {
elf->mapsize, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_FIXED, elf->fd, 0)));
elf->ehdr = memcpy(elf->map, &kObjHeader, (elf->wrote = sizeof(kObjHeader)));
if (strstr(path, "/aarch64")) {
elf->ehdr->e_machine = EM_AARCH64;
} else if (strstr(path, "/powerpc64")) {
elf->ehdr->e_machine = EM_PPC64;
} else if (strstr(path, "/riscv")) {
elf->ehdr->e_machine = EM_RISCV;
} else if (strstr(path, "/s390")) {
elf->ehdr->e_machine = EM_S390;
}
elf->strtab = newinterner();
elf->shstrtab = newinterner();
intern(elf->strtab, "");
@ -274,3 +283,20 @@ void elfwriter_appendrela(struct ElfWriter *elf, uint64_t r_offset,
.offset = r_offset,
.addend = r_addend})));
}
uint32_t elfwriter_relatype_abs32(const struct ElfWriter *elf) {
switch (elf->ehdr->e_machine) {
case EM_NEXGEN32E:
return R_X86_64_32;
case EM_AARCH64:
return R_AARCH64_ABS32;
case EM_PPC64:
return R_PPC64_ADDR32;
case EM_RISCV:
return R_RISCV_32;
case EM_S390:
return R_390_32;
default:
notpossible;
}
}