Add -mstackrealign option to ix86 build

To support compilation with SSE instuctions(that are requires 16-alinging)
applying -mstackrealign is perfectly fine, the %ebp will be 16-aligned in the
function prologue.

According to definition on "Intel 386 and AMD x86-64 Options":
Realign the stack at entry. On the Intel x86, the -mstackrealign option
will generate an alternate prologue and epilogue that realigns the
runtime stack if necessary. This supports mixing legacy codes that keep
a 4-byte aligned stack with modern codes that keep a 16-byte stack for
SSE compatibility. See also the attribute force_align_arg_pointer,
applicable to individual functions.

Change-Id: Ifd4fdd397e7911148bbad6c3b53f993ccd14cc06
Signed-off-by: Mikhail Kashkarov <m.kashkarov@partner.samsung.com>
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>

diff --git a/Tizen:5.5:Base/_config b/Tizen:5.5:Base/_config
index 174ad87..fc8ddae 100644 (file)
--- a/Tizen:5.5:Base/_config
+++ b/Tizen:5.5:Base/_config
@@ -208,4 +208,4 @@ Substitute: glibc-devel-32bit
 Optflags: armv7l %{__global_cflags} --param=ssp-buffer-size=4 -march=armv7-a -mtune=cortex-a8 -mlittle-endian -mfpu=neon -mfloat-abi=softfp -mthumb -Wp,-D__SOFTFP__ -Wl,-O1 -Wl,--hash-style=gnu -Wa,-mimplicit-it=thumb
 Optflags: aarch64 %{__global_cflags} -feliminate-unused-debug-types -Wformat -march=armv8-a+fp+simd+crc+crypto -mtune=cortex-a57.cortex-a53
 Optflags: i686 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m32 -march=i686 -mtune=i686 -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer
-Optflags: x86_64 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m64 -march=nehalem -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer
+Optflags: x86_64 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m64 -march=nehalem -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer -mstackrealign

diff --git a/Tizen:Base/_config b/Tizen:Base/_config
index 174ad87..8822d4e 100644 (file)
--- a/Tizen:Base/_config
+++ b/Tizen:Base/_config
@@ -207,5 +207,5 @@ Substitute: glibc-devel-32bit
 
 Optflags: armv7l %{__global_cflags} --param=ssp-buffer-size=4 -march=armv7-a -mtune=cortex-a8 -mlittle-endian -mfpu=neon -mfloat-abi=softfp -mthumb -Wp,-D__SOFTFP__ -Wl,-O1 -Wl,--hash-style=gnu -Wa,-mimplicit-it=thumb
 Optflags: aarch64 %{__global_cflags} -feliminate-unused-debug-types -Wformat -march=armv8-a+fp+simd+crc+crypto -mtune=cortex-a57.cortex-a53
-Optflags: i686 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m32 -march=i686 -mtune=i686 -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer
+Optflags: i686 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m32 -march=i686 -mtune=i686 -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer -mstackrealign
 Optflags: x86_64 %{__global_cflags} -feliminate-unused-debug-types --param=ssp-buffer-size=4 -fdiagnostics-color=never -m64 -march=nehalem -msse4.2 -mfpmath=sse -fasynchronous-unwind-tables -fno-omit-frame-pointer