diff options
author | Harry Liebel <Harry.Liebel@arm.com> | 2014-01-14 18:11:48 +0000 |
---|---|---|
committer | Dan Handley <dan.handley@arm.com> | 2014-01-17 10:27:53 +0000 |
commit | 4f6036834fb7f53e3002c37af1c9d0681e8ef675 (patch) | |
tree | af1bdd052679342b63b7b7a0d44cb51d34dc1e19 /Makefile | |
parent | e83b0cadc67882c1ba7f430d16dab80c9b3a0228 (diff) | |
download | trusted-firmware-a-4f6036834fb7f53e3002c37af1c9d0681e8ef675.tar.gz |
Do not trap access to floating point registers
Traps when accessing architectural features are disabled by clearing bits
in CPTR_EL3 during early boot, including accesses to floating point
registers. The value of this register was previously undetermined, causing
unwanted traps to EL3. Future EL3 code (for example, context save/restore
code) may use floating point registers, although they are not used by current
code.
Also, the '-mgeneral-regs-only' flag is enabled in the GCC settings to
prevent generation of code that uses floating point registers.
Change-Id: I9a03675f6387bbbee81a6f2c9ccf81150db03747
Diffstat (limited to 'Makefile')
-rw-r--r-- | Makefile | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -97,9 +97,10 @@ INCLUDES += -Ilib/include/ -Iinclude/aarch64/ -Iinclude/ \ -Iinclude/stdlib -Iinclude/stdlib/sys ASFLAGS += -nostdinc -ffreestanding -Wa,--fatal-warnings \ - -D__ASSEMBLY__ ${INCLUDES} -CFLAGS := -nostdinc -pedantic -ffreestanding -Wall -Werror \ - -std=c99 -c -Os -DDEBUG=${DEBUG} ${INCLUDES} ${CFLAGS} + -mgeneral-regs-only -D__ASSEMBLY__ ${INCLUDES} +CFLAGS := -nostdinc -pedantic -ffreestanding -Wall \ + -Werror -mgeneral-regs-only -std=c99 -c -Os \ + -DDEBUG=${DEBUG} ${INCLUDES} ${CFLAGS} LDFLAGS += --fatal-warnings -O1 BL1_LDFLAGS := -Map=${BL1_MAPFILE} --script ${BL1_LINKERFILE} --entry=${BL1_ENTRY_POINT} |