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macos: Support .init_array and .fini_array

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called different on Mach-O, but same functionality (list of pointers
to init and fini functions).
This commit is contained in:
Michael Matz 2020-05-18 05:44:05 +02:00
parent ef730c4d2f
commit cc11750bda
1 changed files with 13 additions and 5 deletions
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18
tccmacho.c
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@ -188,6 +188,8 @@ enum skind {
sk_uw_info,
sk_nl_ptr, // non-lazy pointers, aka GOT
sk_la_ptr, // lazy pointers
sk_init,
sk_fini,
sk_rw_data,
sk_bss,
sk_linkedit,
@ -523,11 +525,13 @@ struct {
char *name;
} skinfo[sk_last] = {
[sk_text] = { 1, 0x80000400, "__text" },
[sk_ro_data] = { 1, 0, "__rodata" },
[sk_nl_ptr] = { 2, 6, "__got" }, /* S_NON_LAZY_SYMBOL_POINTERS */
[sk_rw_data] = { 2, 0, "__data" },
[sk_bss] = { 2, 1, "__bss" },
[sk_linkedit] = { 3, 0, NULL },
[sk_ro_data] = { 1, 0x0, "__rodata" },
[sk_nl_ptr] = { 2, 0x6, "__got" }, /* S_NON_LAZY_SYMBOL_POINTERS */
[sk_init] = { 2, 0x9, "__mod_init_func" }, /* S_MOD_INIT_FUNC_POINTERS */
[sk_fini] = { 2, 0xa, "__mod_term_func" }, /* S_MOD_TERM_FUNC_POINTERS */
[sk_rw_data] = { 2, 0x0, "__data" },
[sk_bss] = { 2, 0x1, "__bss" }, /* S_ZEROFILL */
[sk_linkedit] = { 3, 0x0, NULL },
};
static void collect_sections(TCCState *s1, struct macho *mo)
@ -601,6 +605,8 @@ static void collect_sections(TCCState *s1, struct macho *mo)
if (flags & SHF_ALLOC) {
switch (type) {
default: sk = sk_unknown; break;
case SHT_INIT_ARRAY: sk = sk_init; break;
case SHT_FINI_ARRAY: sk = sk_fini; break;
case SHT_NOBITS: sk = sk_bss; break;
case SHT_SYMTAB: sk = sk_discard; break;
case SHT_STRTAB: sk = sk_discard; break;
@ -698,6 +704,8 @@ static void collect_sections(TCCState *s1, struct macho *mo)
type == SHT_NOBITS ? "nobits" :
type == SHT_SYMTAB ? "symtab" :
type == SHT_STRTAB ? "strtab" :
type == SHT_INIT_ARRAY ? "init" :
type == SHT_FINI_ARRAY ? "fini" :
type == SHT_RELX ? "rel" : "???",
s->sh_addr,
(unsigned)s->data_offset,