[PATCH AUTOSEL 5.0 034/173] gcc-plugins: arm_ssp_per_task_plugin: Fix for older GCC < 6

From: Sasha Levin
Date: Sat Jun 01 2019 - 09:42:50 EST

From: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>

[ Upstream commit 259799ea5a9aa099a267f3b99e1f7078bbaf5c5e ]

Use gen_rtx_set instead of gen_rtx_SET. The former is a wrapper macro
that handles the difference between GCC versions implementing
the latter.

This fixes the following error on my system with g++ 5.4.0 as the host

HOSTCXX -fPIC scripts/gcc-plugins/arm_ssp_per_task_plugin.o
scripts/gcc-plugins/arm_ssp_per_task_plugin.c:42:14: error: macro "gen_rtx_SET" requires 3 arguments, but only 2 given
scripts/gcc-plugins/arm_ssp_per_task_plugin.c: In function âunsigned int arm_pertask_ssp_rtl_execute()â:
scripts/gcc-plugins/arm_ssp_per_task_plugin.c:39:20: error: âgen_rtx_SETâ was not declared in this scope

Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
Fixes: 189af4657186 ("ARM: smp: add support for per-task stack canaries")
Cc: stable@xxxxxxxxxxxxxxx
Tested-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
scripts/gcc-plugins/arm_ssp_per_task_plugin.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
index 89c47f57d1ce1..8c1af9bdcb1bb 100644
--- a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
+++ b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
@@ -36,7 +36,7 @@ static unsigned int arm_pertask_ssp_rtl_execute(void)
mask = GEN_INT(sext_hwi(sp_mask, GET_MODE_PRECISION(Pmode)));
masked_sp = gen_reg_rtx(Pmode);

- emit_insn_before(gen_rtx_SET(masked_sp,
+ emit_insn_before(gen_rtx_set(masked_sp,