MIPS: disable kcov instrumentation in compressed dir
PATCH 1/1 MIPS: disable kcov instrumentation in compressed dir
This patch fixes the compilation with CONFIG_KCOV enabled. Otherwise linking fails with:
ld: arch/mips/boot/compressed/piggy.o: in function `main':
dummy.c:(.text.startup+0x8): undefined reference to `__sanitizer_cov_...' make[1]: *** [arch/mips/boot/compressed/Makefile:101: vmlinuz] Error 1
Signed-off-by Denis Efremov <[email protected]>
--- arch/mips/boot/compressed/Makefile | 3 +++ 1 file changed, 3 insertions(+)
arch/mips/boot/compressed/Makefile +3 -0
@@ -29,6 +29,9 @@ KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) +# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. +KCOV_INSTRUMENT := n + # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
Signature · 1 line
2.20.1
Hi Denis,
Quoted 10 lines · Denis Efremov
This patch fixes the compilation with
CONFIG_KCOVenabled. Otherwise linking fails with:
ld:arch/mips/boot/compressed/piggy.o: in function `main':
dummy.c:(.text.startup+0x8): undefined reference to `__sanitizer_cov_...' make[1]: *** [arch/mips/boot/compressed/Makefile:101: vmlinuz] Error 1Signed-off-by Denis Efremov <[email protected]>--- arch/mips/boot/compressed/Makefile | 3 +++ 1 file changed, 3 insertions(+)
This one's identical to this patch which was merged to mips-fixes yesterday:
https://git.kernel.org/mips/c/3f0a2abff9aa
Thanks,
Paul
Quoted 17 lines
arch/mips/boot/compressed/Makefile +3
-0@@ -29,6 +29,9 @@ KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) +# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. +KCOV_INSTRUMENT := n + # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.oSignature · 1 line
2.20.1