在CentOS5下編譯32核心的perf

很多的公司，包括我們公司，還在使用centos5。但核心早已換成el6系列的2.6.32核心。perf工具是核心自帶的乙個效能評估工具，功能很強大，為了在centos5下進行效能優化，我們要在centos5下對2.6.32核心的perf原始碼進行編譯。我這裡使用了linux-2.6.32-358.el6的核心原始碼。

進入原始碼目錄，打上以下補丁：

1、004-150-perf-tools-fix-build-with-bison-2.3-and-older..patch

--- a/tools/perf/makefile

+++ b/tools/perf/makefile
@@ -276,13 +276,13 @@ $(output)util/parse-events-flex.c: util/
$(quiet_flex)$(flex) --header-file=$(output)util/parse-events-flex.h $(parser_debug_flex) -t util/parse-events.l > $(output)util/parse-events-flex.c
$(output)util/parse-events-bison.c: util/parse-events.y
- $(quiet_bison)$(bison) -v util/parse-events.y -d $(parser_debug_bison) -o $(output)util/parse-events-bison.c
+ $(quiet_bison)$(bison) -v util/parse-events.y -d $(parser_debug_bison) -o $(output)util/parse-events-bison.c -p parse_events_
$(output)util/pmu-flex.c: util/pmu.l $(output)util/pmu-bison.c
$(quiet_flex)$(flex) --header-file=$(output)util/pmu-flex.h -t util/pmu.l > $(output)util/pmu-flex.c
$(output)util/pmu-bison.c: util/pmu.y
- $(quiet_bison)$(bison) -v util/pmu.y -d -o $(output)util/pmu-bison.c
+ $(quiet_bison)$(bison) -v util/pmu.y -d -o $(output)util/pmu-bison.c -p perf_pmu_
$(output)util/parse-events.o: $(output)util/parse-events-flex.c $(output)util/parse-events-bison.c
$(output)util/pmu.o: $(output)util/pmu-flex.c $(output)util/pmu-bison.c
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -1,5 +1,4 @@
%pure-parser
-%name-prefix "parse_events_"
%parse-param 
%parse-param 
%lex-param 
--- a/tools/perf/util/pmu.y
+++ b/tools/perf/util/pmu.y
@@ -1,5 +1,4 @@
-%name-prefix "perf_pmu_"
%parse-param 
%parse-param

diff --git a/tools/perf/util/dso-test-data.c b/tools/perf/util/dso-test-data.c

index 541cdc7..c6caede 100644
--- a/tools/perf/util/dso-test-data.c
+++ b/tools/perf/util/dso-test-data.c
@@ -23,7 +23,7 @@ static char *test_file(int size)
int fd, i;
unsigned char *buf;
- fd = mkostemp(templ, o_creat|o_wronly|o_trunc);
+ fd = mkstemp(templ);
buf = malloc(size);
if (!buf) 
-static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t **maskp,
- size_t *sizep)
+static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t *maskp) 
for (i = 0; i < nrcpus; i++) else
- cpu_clr_s(i, size, mask);
+ else
+ cpu_clr(i, maskp);}} 
- if (cpu == -1)
- cpu_free(mask);
- return cpu; } 
@@ -654,8 +643,8 @@ static int test__perf_record(void)
.freq = 10,
.mmap_pages = 256,
};- cpu_set_t *cpu_mask = null;
- size_t cpu_mask_size = 0;
+ cpu_set_t cpu_mask;
+ size_t cpu_mask_size = sizeof(cpu_mask);
struct perf_evlist *evlist = perf_evlist__new(null, null);
struct perf_evsel *evsel;
struct perf_sample sample;
@@ -719,8 +708,7 @@ static int test__perf_record(void)
evsel->attr.sample_type |= perf_sample_time;
perf_evlist__config_attrs(evlist, &opts);
- err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask,
- &cpu_mask_size);
+ err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask);
if (err < 0) 
/*@@ -917,8 +905,6 @@ found_exit:
} out_err:
perf_evlist__munmap(evlist);
-out_free_cpu_mask:
- cpu_free(cpu_mask);
out_delete_evlist:
perf_evlist__delete(evlist);
out:

然後再安裝

binutils220-2.20.51.0.2-5.29.el5.x86_64.rpm

flex-2.5.35-0.8.el5.rfb.x86_64.rpm

libgomp-4.4.7-1.el5.x86_64.rpm

這幾個包。

進入tools/perf，make一下就可以了。

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