diff options
| author | mengqinggang <mengqinggang@loongson.cn> | 2024-07-05 10:40:33 +0800 |
|---|---|---|
| committer | caiyinyu <caiyinyu@loongson.cn> | 2024-08-09 09:06:17 +0800 |
| commit | 5662433c38c1925bd937cd50232fe4251bc20d04 (patch) | |
| tree | 9174165f8bc3fa9ebc36db7938cd433d7e214902 /sysdeps/loongarch/dl-machine.h | |
| parent | d5f1da2a8a889e4868615f9b155ca67f10d46b5b (diff) | |
| download | glibc-5662433c38c1925bd937cd50232fe4251bc20d04.tar.gz glibc-5662433c38c1925bd937cd50232fe4251bc20d04.tar.xz glibc-5662433c38c1925bd937cd50232fe4251bc20d04.zip | |
LoongArch: Add cfi instructions for _dl_tlsdesc_dynamic
In _dl_tlsdesc_dynamic, there are three 'addi.d sp, sp, -size' instructions to allocate stack size for Float/LSX/LASX registers. Every 'addi.d sp, sp, -size' needs a cfi_adjust_cfa_offset because of sp is used to compute CFA. But only one 'addi.d sp, sp, -size' will be run according to HWCAP value. And all cfi_adjust_cfa_offset will be executed in stack unwinding, it result in incorrect CFA. Change _dl_tlsdesc_dynamic to _dl_tlsdesc_dynamic, _dl_tlsdesc_dynamic_lsx and _dl_tlsdesc_dynamic_lasx. Conflicting cfi instructions can be distributed to the three functions. And cfi instructions can correspond to stack down instructions.
Diffstat (limited to 'sysdeps/loongarch/dl-machine.h')
| -rw-r--r-- | sysdeps/loongarch/dl-machine.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/loongarch/dl-machine.h b/sysdeps/loongarch/dl-machine.h index ab6f1da7c0..a15d8e0ab6 100644 --- a/sysdeps/loongarch/dl-machine.h +++ b/sysdeps/loongarch/dl-machine.h @@ -223,6 +223,13 @@ elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[], { td->arg = _dl_make_tlsdesc_dynamic (sym_map, sym->st_value + reloc->r_addend); +# ifndef __loongarch_soft_float + if (RTLD_SUPPORT_LASX) + td->entry = _dl_tlsdesc_dynamic_lasx; + else if (RTLD_SUPPORT_LSX) + td->entry = _dl_tlsdesc_dynamic_lsx; + else +# endif td->entry = _dl_tlsdesc_dynamic; } else |