http://sourceware.org/bugzilla/show_bug.cgi?id=12198
Summary: SVC in thumb assembler forces M-profile attribute
Product: binutils
Version: 2.21 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gas
AssignedTo: unassig...@sources.redhat.com
ReportedBy: rearn...@gcc.gnu.org
CC: mgret...@sourceware.org
Target: arm-eabi
Assemble the following testcase using the assemblers auto-selection of
attributes mode (ie no CPU/arch selection on the command line, and no
directives in sources).
.thumb
.global f
.type f, %function
f:
svc 0xab
bx lr
arm-none-eabi-as -o t1.o t1.s
arm-none-eabi-readelf -A t1.o
Attribute Section: aeabi
File Attributes
Tag_CPU_arch: v6S-M
Tag_CPU_arch_profile: Microcontroller
Tag_THUMB_ISA_use: Thumb-1
Tag_DIV_use: Not allowed
There's nothing in this file that forces this to M-profile. Indeed, it can
even do this if the object file contains ARM assembly instructions.
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