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[Patch ARM] Fix build attributes for armv8-a in case of assembler files that contain no directives.

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There is currently a problem in the way in which we produce
build attributes for simple assembler files that have armv8-a
instructions.

In these case we need to generate TAG_ISA_THUMB_Use to be Thumb-2
and set the architecture profile to be 'A' rather than not
setting architecture profile to be 'A' and setting TAG_ISA_THUMB_Use
to be Thumb-1.

This is a pre-requisite for any v8-m patches that have been posted.
arm-none-eabi gas testsuite run. no regressions.

2015-12-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	* gas/config/tc-arm.c (aeabi_set_public_attributes): Adjust
	TAG_ARCH_profile for armv8-a.
	* gas/testsuite/gas/arm/armv8a-automatic-hlt.d: New test.
	* gas/testsuite/gas/arm/armv8a-automatic-hlt.s: New test.
	* gas/testsuite/gas/arm/armv8a-automatic-lda.d: New test.
	* gas/testsuite/gas/arm/armv8a-automatic-lda.s: New test.
This commit is contained in:
Ramana Radhakrishnan
2015-12-17 10:55:54 +00:00
parent 0bef041426
commit 10c9892b66
6 changed files with 31 additions and 3 deletions
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5
include/opcode/arm.h
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@ -263,9 +263,10 @@
#define ARM_ANY ARM_FEATURE (-1, -1, 0) /* Any basic core. */
#define ARM_FEATURE_ALL ARM_FEATURE (-1, -1, -1)/* All CPU and FPU features. */
#define FPU_ANY_HARD ARM_FEATURE_COPROC (FPU_FPA | FPU_VFP_HARD | FPU_MAVERICK)
#define ARM_ARCH_THUMB2 ARM_FEATURE_CORE_LOW (ARM_EXT_V6T2 | ARM_EXT_V7 \
#define ARM_ARCH_THUMB2 ARM_FEATURE_CORE_LOW (ARM_EXT_V6T2 | ARM_EXT_V7 \
| ARM_EXT_V7A | ARM_EXT_V7R \
| ARM_EXT_V7M | ARM_EXT_DIV)
| ARM_EXT_V7M | ARM_EXT_DIV \
| ARM_EXT_V8)
/* v7-a+sec. */
#define ARM_ARCH_V7A_SEC ARM_FEATURE_CORE_LOW (ARM_AEXT_V7A | ARM_EXT_SEC)
/* v7-a+mp+sec. */