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[ARM] Fix NULL dereference of march_ext_opt 

Commit 4d354d8b89 introduced a NULL
pointer dereference by replacing a pointer assignment by a pointer
dereference assignment without adding a NULL pointer check. This patch
fixes it.

2018-03-02  Thomas Preud'homme  <thomas.preudhomme@arm.com>

gas/
	* config/tc-arm.c (md_begin): Add NULL pointer check before
	dereferencing march_ext_opt.
This commit is contained in:
Thomas Preud'homme 2018-03-02 10:46:32 +00:00
parent ed2592386c
commit e7da50fa4b
2 changed files with 6 additions and 1 deletions
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5
gas/ChangeLog
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@ -1,3 +1,8 @@
2018-03-02 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/tc-arm.c (md_begin): Add NULL pointer check before
dereferencing march_ext_opt.
2018-03-01 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/tc-arm.c (cpu_variant, arm_arch_used, thumb_arch_used,

2
gas/config/tc-arm.c
View File

@ -25407,7 +25407,7 @@ md_begin (void)
from the processor. */
if (mcpu_fpu_opt)
selected_fpu = *mcpu_fpu_opt;
else
else if (march_fpu_opt)
selected_fpu = *march_fpu_opt;
#else
selected_fpu = fpu_default;