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SubjectRe: [PATCH 6/6] gcov: architecture specific compile flag adjustments
On Mon, 02 Jun 2008 15:34:47 +0200
Peter Oberparleiter <> wrote:

> Exclude code from profiling which is not linked to the main kernel or
> which is running in a context not compatible with the assumptions made
> by gcc's profiling code.

powerpc allmodconfig fails with

Error: External symbol '__gcov_init' referenced from prom_init.c
Error: External symbol '__gcov_merge_add' referenced from prom_init.c


--- a/arch/powerpc/kernel/Makefile~a
+++ a/arch/powerpc/kernel/Makefile
@@ -12,6 +12,10 @@ CFLAGS_prom_init.o += -fPIC
CFLAGS_btext.o += -fPIC

+CFLAGS_prom_init.o += -fno-profile-arcs -fno-test-coverage

didn't fix it so I gave up.

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