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| author | Ingo Molnar <mingo@kernel.org> | 2014-03-01 10:13:25 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-03-01 10:13:25 +0100 |
| commit | af76815a31adc75dd9526230affdd678e65ac59f (patch) | |
| tree | dfc60fc25146d8dad4b9143c1759283727f4923c | |
| parent | Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kerne... (diff) | |
| parent | perf tools: Fix strict alias issue for find_first_bit (diff) | |
| download | linux-af76815a31adc75dd9526230affdd678e65ac59f.tar.xz linux-af76815a31adc75dd9526230affdd678e65ac59f.zip | |
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent build fixes for certain distro environments, from Arnaldo Carvalho de Melo:
* Problem on recent gcc on x86-32 related to strict alias issue for
find_first_bit (Jiri Olsa).
* OpenSuSE: BFD detection problems related to not explicitely listing all
required libraries (Andi Kleen)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | tools/perf/config/Makefile | 2 | ||||
| -rw-r--r-- | tools/perf/config/feature-checks/Makefile | 2 | ||||
| -rw-r--r-- | tools/perf/util/include/linux/bitops.h | 4 |
3 files changed, 5 insertions, 3 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index c48d44958172..0331ea2701a3 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -478,7 +478,7 @@ else endif ifeq ($(feature-libbfd), 1) - EXTLIBS += -lbfd + EXTLIBS += -lbfd -lz -liberty endif ifdef NO_DEMANGLE diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile index 12e551346fa6..523b7bc10553 100644 --- a/tools/perf/config/feature-checks/Makefile +++ b/tools/perf/config/feature-checks/Makefile @@ -121,7 +121,7 @@ test-libpython-version.bin: $(BUILD) $(FLAGS_PYTHON_EMBED) test-libbfd.bin: - $(BUILD) -DPACKAGE='"perf"' -lbfd -ldl + $(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl test-liberty.bin: $(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' -lbfd -ldl -liberty diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h index 45cf10a562bd..dadfa7e54287 100644 --- a/tools/perf/util/include/linux/bitops.h +++ b/tools/perf/util/include/linux/bitops.h @@ -87,13 +87,15 @@ static __always_inline unsigned long __ffs(unsigned long word) return num; } +typedef const unsigned long __attribute__((__may_alias__)) long_alias_t; + /* * Find the first set bit in a memory region. */ static inline unsigned long find_first_bit(const unsigned long *addr, unsigned long size) { - const unsigned long *p = addr; + long_alias_t *p = (long_alias_t *) addr; unsigned long result = 0; unsigned long tmp; |