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Author SHA1 Message Date
Daniel Kiss f70baaf71f [AArch64] Add -mmark-bti-property flag. 
Writing the .note.gnu.property manually is error prone and hard to
maintain in the assembly files.
The -mmark-bti-property is for the assembler to emit the section with the
GNU_PROPERTY_AARCH64_FEATURE_1_BTI. To be used when C/C++ is compiled
with -mbranch-protection=bti.

This patch refactors the .note.gnu.property handling.

Reviewed By: chill, nickdesaulniers

Differential Revision: https://reviews.llvm.org/D81930

Reland with test dependency on aarch64 target.
 2020-09-17 01:18:36 +02:00
Daniel Kiss 60e244f82c Revert "[AArch64] Add -mmark-bti-property flag." 
This reverts commit 95e43f84b7.
 2020-09-17 01:17:23 +02:00
Daniel Kiss 95e43f84b7 [AArch64] Add -mmark-bti-property flag. 
Writing the .note.gnu.property manually is error prone and hard to
maintain in the assembly files.
The -mmark-bti-property is for the assembler to emit the section with the
GNU_PROPERTY_AARCH64_FEATURE_1_BTI. To be used when C/C++ is compiled
with -mbranch-protection=bti.

This patch refactors the .note.gnu.property handling.

Reviewed By: chill, nickdesaulniers

Differential Revision: https://reviews.llvm.org/D81930
 2020-09-17 00:24:14 +02:00