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authorAl Viro <viro@ftp.linux.org.uk>2011-08-18 21:11:49 +0200
committerRichard Weinberger <richard@nod.at>2011-11-02 14:15:26 +0100
commit4d211093e838ddd049b5cf4f0773aa5ac67f9976 (patch)
tree812dbda87c5ff94eb926cc6ee7410a323e5b2cc1
parentum: page_offset.h is never used (diff)
downloadlinux-4d211093e838ddd049b5cf4f0773aa5ac67f9976.tar.xz
linux-4d211093e838ddd049b5cf4f0773aa5ac67f9976.zip
um: fix gcov build breakage
a) exports in gmon_syms.c duplicate kernel/gcov/* ones b) excluding -pg in vdso compile is not enough - -fprofile-arcs and -ftest-coverage also needs to be excluded Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
-rw-r--r--arch/um/kernel/gmon_syms.c15
-rw-r--r--arch/x86/um/vdso/Makefile4
2 files changed, 2 insertions, 17 deletions
diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c
index 72eccd2a4113..e9bcf247bcee 100644
--- a/arch/um/kernel/gmon_syms.c
+++ b/arch/um/kernel/gmon_syms.c
@@ -7,18 +7,3 @@
extern void __bb_init_func(void *) __attribute__((weak));
EXPORT_SYMBOL(__bb_init_func);
-
-/*
- * This is defined (and referred to in profiling stub code) only by some GCC
- * versions in libgcov.
- *
- * Since SuSE backported the fix, we cannot handle it depending on GCC version.
- * So, unconditionally export it. But also give it a weak declaration, which
- * will be overridden by any other one.
- */
-
-extern void __gcov_init(void *) __attribute__((weak));
-EXPORT_SYMBOL(__gcov_init);
-
-extern void __gcov_merge_add(void *) __attribute__((weak));
-EXPORT_SYMBOL(__gcov_merge_add);
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index 5dffe6d46686..6c803ca49b5d 100644
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -46,8 +46,8 @@ $(vobjs): KBUILD_CFLAGS += $(CFL)
#
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
#
-CFLAGS_REMOVE_vdso-note.o = -pg
-CFLAGS_REMOVE_um_vdso.o = -pg
+CFLAGS_REMOVE_vdso-note.o = -pg -fprofile-arcs -ftest-coverage
+CFLAGS_REMOVE_um_vdso.o = -pg -fprofile-arcs -ftest-coverage
targets += vdso-syms.lds
obj-$(VDSO64-y) += vdso-syms.lds