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>

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>
Jiang Liu · Catalin Marinas
1 parent 5c5bf25d4f
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
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).
...	...	@@ -5,7 +5,7 @@
5	5	cat << "END" \| $@ -x c - -c -o /dev/null >/dev/null 2>&1 && echo "y"
6	6	int main(void)
7	7	{
8		-#ifdef __arm__
	8	+#if defined(__arm__) \|\| defined(__aarch64__)
9	9	/*
10	10	* Not related to asm goto, but used by jump label
11	11	* and broken on some ARM GCC versions (see GCC Bug 48637).