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| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2023-12-27 17:17:11 +0000 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2024-07-08 09:41:45 +0100 |
| commit | 435305562edf4eb26a2a13856dd4847665f81175 (patch) | |
| tree | 1e188d778b1b234e9233b1d7db59ea29bf171db6 /sysdeps/unix/sysv | |
| parent | e6b927e2f90c2e1739a65fdc3b13de3a51426320 (diff) | |
| download | glibc-435305562edf4eb26a2a13856dd4847665f81175.zip glibc-435305562edf4eb26a2a13856dd4847665f81175.tar.gz glibc-435305562edf4eb26a2a13856dd4847665f81175.tar.bz2 | |
aarch64: Process gnu properties in static exe
Unlike for BTI, the kernel does not process GCS properties so update
GL(dl_aarch64_gcs) before the GCS status is set.
Diffstat (limited to 'sysdeps/unix/sysv')
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/libc-start.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc-start.h b/sysdeps/unix/sysv/linux/aarch64/libc-start.h index ccf0f8a..6e2e976 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libc-start.h +++ b/sysdeps/unix/sysv/linux/aarch64/libc-start.h @@ -21,6 +21,8 @@ #ifndef SHARED +# include <dl-prop.h> + # ifndef PR_SET_SHADOW_STACK_STATUS # define PR_GET_SHADOW_STACK_STATUS 71 # define PR_SET_SHADOW_STACK_STATUS 72 @@ -36,6 +38,16 @@ aarch64_libc_setup_tls (void) { __libc_setup_tls (); + struct link_map *main_map = _dl_get_dl_main_map (); + const ElfW(Phdr) *phdr = GL(dl_phdr); + const ElfW(Phdr) *ph; + for (ph = phdr; ph < phdr + GL(dl_phnum); ph++) + if (ph->p_type == PT_GNU_PROPERTY) + { + _dl_process_pt_gnu_property (main_map, -1, ph); + _rtld_main_check (main_map, _dl_argv[0]); + break; + } uint64_t s = GL(dl_aarch64_gcs); if (s != 0) INLINE_SYSCALL_CALL (prctl, PR_SET_SHADOW_STACK_STATUS, s, 0, 0, 0); |