diff options
| author | Nathan Huckleberry <nhuck15@gmail.com> | 2019-08-22 21:26:53 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-08-29 07:58:01 +0100 |
| commit | 6dc5fd93b2f1ef75d5e50fced8cb193811f25f22 (patch) | |
| tree | aef0050d64248b77af6b90a9601146739227180b /arch/arm/Makefile | |
| parent | 834020366da9ab3fb87d1eb9a3160eb22dbed63a (diff) | |
| download | lwn-6dc5fd93b2f1ef75d5e50fced8cb193811f25f22.tar.gz lwn-6dc5fd93b2f1ef75d5e50fced8cb193811f25f22.zip | |
ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang
The stackframe setup when compiled with clang is different.
Since the stack unwinder expects the gcc stackframe setup it
fails to print backtraces. This patch adds support for the
clang stackframe setup.
Link: https://github.com/ClangBuiltLinux/linux/issues/35
Cc: clang-built-linux@googlegroups.com
Suggested-by: Tri Vo <trong@google.com>
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/Makefile')
| -rw-r--r-- | arch/arm/Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 288fa2a6dbea..977f4e66f145 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -36,7 +36,10 @@ KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) endif ifeq ($(CONFIG_FRAME_POINTER),y) -KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog +KBUILD_CFLAGS +=-fno-omit-frame-pointer +ifeq ($(CONFIG_CC_IS_GCC),y) +KBUILD_CFLAGS += -mapcs -mno-sched-prolog +endif endif ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) |