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Add -mstrict-align to the gcc options

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ARMv8 architecture allows unaligned memory accesses. However,
Trusted Firmware disables such feature by setting the SCTLR_A_BIT
and SCTLR_SA_BIT in the SCTLR_EL3 register (it enables alignment
checks).

This patch adds -mstrict-align to the gcc build options. Although
there are not explicit unaligned memory accesses in Trusted Firmware,
this flag will tell the compiler not to use them.

Fixes ARM-software/tf-issues#294

Change-Id: I69748c6cf28504be9ca3dc975a331d14459c9ef1
This commit is contained in:
Juan Castillo 2015-11-06 12:43:56 +00:00
parent 135c9ddd36
commit fa1d37122c
1 changed files with 2 additions and 1 deletions
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Makefile
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@ -167,7 +167,8 @@ ASFLAGS += -nostdinc -ffreestanding -Wa,--fatal-warnings \
${DEFINES} ${INCLUDES}
CFLAGS += -nostdinc -ffreestanding -Wall \
-Werror -Wmissing-include-dirs \
-mgeneral-regs-only -std=c99 -c -Os \
-mgeneral-regs-only -mstrict-align \
-std=c99 -c -Os \
${DEFINES} ${INCLUDES}
CFLAGS += -ffunction-sections -fdata-sections