Aren/toaruos
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

linker: rudimentary TLSDESC for aarch64; kuroko modules

Browse Source
This commit is contained in:
K. Lange 2022-05-23 23:29:08 +09:00
parent 608a29d588
commit ef97b6ab11
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
linker/linker.c
View File

@ -414,6 +414,7 @@ static int need_symbol_for_type(unsigned int type) {
case 1025: case 1025:
case 1026: case 1026:
case 1030: case 1030:
case 1031:
case 257: case 257:
return 1; return 1;
default: default:
@ -423,6 +424,10 @@ static int need_symbol_for_type(unsigned int type) {
#endif #endif
} }
static size_t __tlsdesc_static(size_t * a) {
return a[1];
}
/* Apply ELF relocations */ /* Apply ELF relocations */
static int object_relocate(elf_t * object) { static int object_relocate(elf_t * object) {
@ -571,6 +576,18 @@ static int object_relocate(elf_t * object) {
} }
memcpy((void *)(table->r_offset + object->base), &x, sizeof(uintptr_t)); memcpy((void *)(table->r_offset + object->base), &x, sizeof(uintptr_t));
break; break;
case 1031: {
x += *((ssize_t *)(table->r_offset + object->base));
if (!hashmap_has(tls_map, symname)) {
fprintf(stderr, "Don't know where to get %s from TLS\n", symname);
exit(1);
}
x += (size_t)hashmap_get(tls_map, symname);
uintptr_t func = (uintptr_t)&__tlsdesc_static;
memcpy((void *)(table->r_offset + object->base), &func, sizeof(uintptr_t));
memcpy((void *)(table->r_offset + object->base + sizeof(uintptr_t)), &x, sizeof(uintptr_t));
break;
}
#else #else
# error "unsupported" # error "unsupported"
#endif #endif