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authorRichard Henderson <rth@redhat.com>2014-05-20 16:17:20 -0400
committerRichard Henderson <rth@redhat.com>2014-05-29 12:39:03 -0400
commita17e5ffb80a17449add001ff7901e317afa6f632 (patch)
treef348aa50e000c1392863dc495b7a6a7a08f8f6f0 /sysdeps
parentb5be4597716eff94149f5529c8eb2cd3b4296188 (diff)
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aarch64: Use tpidr_el0 rather than __read_tp in librt
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h14
1 files changed, 3 insertions, 11 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h b/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h
index 0f5bb51..546ed7b 100644
--- a/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h
@@ -113,17 +113,9 @@ extern int __local_multiple_threads attribute_hidden;
header.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P(R) \
- stp x0, x30, [sp, -16]!; \
- cfi_adjust_cfa_offset (16); \
- cfi_rel_offset (x0, 0); \
- cfi_rel_offset (x30, 8); \
- bl __read_tp; \
- sub x0, x0, PTHREAD_SIZEOF; \
- ldr w##R, [x0, PTHREAD_MULTIPLE_THREADS_OFFSET]; \
- ldp x0, x30, [sp], 16; \
- cfi_restore (x0); \
- cfi_restore (x30); \
- cfi_adjust_cfa_offset (-16)
+ mrs x##R, tpidr_el0; \
+ sub x##R, x##R, PTHREAD_SIZEOF; \
+ ldr w##R, [x##R, PTHREAD_MULTIPLE_THREADS_OFFSET]
# endif
# endif