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| author | Florian Weimer <fweimer@redhat.com> | 2021-03-01 15:56:36 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-03-01 16:00:22 +0100 |
| commit | 97e42bd482b62d7b74889be11c98b0bbb4059dcd (patch) | |
| tree | 374b3d1c4ab7dc13601bf1af77463aeefd5b73b9 /sysdeps/arm/pt-arm-unwind-resume.S | |
| parent | 6b7efa3d8703cfd020281706f8110bc4a41b1525 (diff) | |
| download | glibc-97e42bd482b62d7b74889be11c98b0bbb4059dcd.tar.gz glibc-97e42bd482b62d7b74889be11c98b0bbb4059dcd.tar.xz glibc-97e42bd482b62d7b74889be11c98b0bbb4059dcd.zip | |
nptl: Use <unwind-link.h> for accessing the libgcc_s unwinder
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/arm/pt-arm-unwind-resume.S')
| -rw-r--r-- | sysdeps/arm/pt-arm-unwind-resume.S | 30 |
1 files changed, 2 insertions, 28 deletions
diff --git a/sysdeps/arm/pt-arm-unwind-resume.S b/sysdeps/arm/pt-arm-unwind-resume.S index d579848696..c056eb38d0 100644 --- a/sysdeps/arm/pt-arm-unwind-resume.S +++ b/sysdeps/arm/pt-arm-unwind-resume.S @@ -16,31 +16,5 @@ License along with the GNU C Library. If not, see <https://www.gnu.org/licenses/>. */ -#include <sysdep.h> - -/* This is just implementing exactly what the C version does. - We do it in assembly just to ensure that we get an unmolested tail - call to the libgcc function, which is necessary for the ARM unwinder. */ - -ENTRY (_Unwind_Resume) - LDR_HIDDEN (ip, ip, __libgcc_s_resume, 0) - cmp ip, #0 - beq 1f -0: PTR_DEMANGLE (ip, ip, r2, r3) - bx ip - - /* We need to save and restore LR (for our own return address) - and R0 (for the argument to _Unwind_Resume) around the call. */ -1: push {r0, lr} - cfi_adjust_cfa_offset (8) - cfi_rel_offset (r0, 0) - cfi_rel_offset (lr, 4) - bl pthread_cancel_init - pop {r0, lr} - cfi_adjust_cfa_offset (-8) - cfi_restore (r0) - cfi_restore (lr) - - LDR_HIDDEN (ip, ip, __libgcc_s_resume, 0) - b 0b -END (_Unwind_Resume) +/* The implementation in libpthread is identical to the one in libc. */ +#include <sysdeps/arm/arm-unwind-resume.S> |