[PATCH] D12161: [compiler-rt] Add aarch64 syscall optimization support

[Adhemerval Zanella via llvm-commits]

zatrazz created this revision.
zatrazz added reviewers: rengolin, kcc, eugenis, dvyukov.
zatrazz added a subscriber: llvm-commits.
Herald added subscribers: rengolin, aemerson.

This patch adds the inline syscall support for aarch64 instead of relying
on the syscall runtime function.  I had to use the macro system instead of
template one (as x86_64 does) because I have hit a issue with GCC where
named register through asm were not used in template instanciation
(and it has shown on both GCC 4.8 and GCC 4.9).

http://reviews.llvm.org/D12161

Files:
  lib/sanitizer_common/sanitizer_linux.cc
  lib/sanitizer_common/sanitizer_syscall_linux_aarch64.inc

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