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authorJiang Liu <liuj97@gmail.com>2014-01-07 22:17:12 +0800
committerCatalin Marinas <catalin.marinas@arm.com>2014-01-08 15:21:29 +0000
commitf3c003f72dfb2497056bcbb864885837a1968ed5 (patch)
tree4e9c6be3d56b4cc6c594646071bec3dbc0b64920
parent5c5bf25d4f7a950382f94fc120a5818197b48fe9 (diff)
downloadop-kernel-dev-f3c003f72dfb2497056bcbb864885837a1968ed5.zip
op-kernel-dev-f3c003f72dfb2497056bcbb864885837a1968ed5.tar.gz
arm64, jump label: detect %c support for ARM64
As commit a9468f30b5eac6 "ARM: 7333/2: jump label: detect %c support for ARM", this patch detects the same thing for ARM64 because some ARM64 GCC versions have the same issue. Some versions of ARM64 GCC which do support asm goto, do not support the %c specifier. Since we need the %c to support jump labels on ARM64, detect that too in the asm goto detection script to avoid build errors with these versions. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jiang Liu <liuj97@gmail.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-rw-r--r--scripts/gcc-goto.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/gcc-goto.sh b/scripts/gcc-goto.sh
index a2af2e8..c9469d3 100644
--- a/scripts/gcc-goto.sh
+++ b/scripts/gcc-goto.sh
@@ -5,7 +5,7 @@
cat << "END" | $@ -x c - -c -o /dev/null >/dev/null 2>&1 && echo "y"
int main(void)
{
-#ifdef __arm__
+#if defined(__arm__) || defined(__aarch64__)
/*
* Not related to asm goto, but used by jump label
* and broken on some ARM GCC versions (see GCC Bug 48637).
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