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perf: Don't build backtrace for ARC

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[Thomas: add more details as a comment in the code, provided by Anton
Kolesov.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Mischa Jonker 2014-01-28 14:10:58 +01:00 committed by Thomas Petazzoni
parent 3d08f3f03f
commit fc093d61ce
1 changed files with 10 additions and 0 deletions
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10
package/perf/perf.mk
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@ -22,6 +22,16 @@ PERF_MAKE_FLAGS = \
WERROR=0 \
ASCIIDOC=
# The call to backtrace() function fails for ARC, because for some
# reason the unwinder from libgcc returns early. Thus the usage of
# backtrace() should be disabled in perf explicitly: at build time
# backtrace() appears to be available, but it fails at runtime: the
# backtrace will contain only several functions from the top of stack,
# instead of the complete backtrace.
ifeq ($(BR2_arc),y)
PERF_MAKE_FLAGS += NO_BACKTRACE=1
endif
ifeq ($(BR2_PACKAGE_ELFUTILS),y)
PERF_DEPENDENCIES += elfutils
else