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Szabolcs Nagy f0f62fa032 aarch64: Fix BTI support in libgcc [PR96001]
lse.S did not have the GNU property note markup and the BTI c
instructions that are necessary when it is built with branch
protection.

The notes are only added when libgcc is built with branch
protection, because old linkers mishandle the note (merge
them incorrectly or emit warnings), the BTI instructions
are added unconditionally.

Note: BTI c is only necessary at function entry if the function
may be called indirectly, currently lse functions are not called
indirectly, but BTI is added for ABI reasons e.g. to allow
linkers later to emit stub code with indirect jump.

2020-07-09  Szabolcs Nagy  <szabolcs.nagy@arm.com>

libgcc/ChangeLog:

	PR target/96001
	* config/aarch64/lse.S: Add BTI marking and related definitions,
	and add BTI c to function entries.
2020-07-09 09:50:25 +01:00
config
contrib Daily bump. 2020-07-08 00:16:40 +00:00
fixincludes
gcc aarch64: Add missing ACLE support for BTI 2020-07-09 09:46:58 +01:00
gnattools
gotools
include Daily bump. 2020-06-27 00:16:24 +00:00
INSTALL
intl
libada
libatomic
libbacktrace Daily bump. 2020-07-09 00:16:44 +00:00
libcc1 Daily bump. 2020-07-01 00:16:26 +00:00
libcpp Daily bump. 2020-07-08 00:16:40 +00:00
libdecnumber
libffi
libgcc aarch64: Fix BTI support in libgcc [PR96001] 2020-07-09 09:50:25 +01:00
libgfortran
libgo
libgomp Daily bump. 2020-07-04 00:16:26 +00:00
libhsail-rt
libiberty Daily bump. 2020-06-27 00:16:24 +00:00
libitm aarch64: Fix noexecstack note in libitm 2020-07-09 09:50:25 +01:00
libobjc
liboffloadmic
libphobos Daily bump. 2020-06-26 00:16:23 +00:00
libquadmath
libsanitizer
libssp
libstdc++-v3 Daily bump. 2020-07-09 00:16:44 +00:00
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