mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 02:09:42 +00:00
perf test sample-parsing: Add endian test for struct branch_flags
Extend the sample-parsing test to include a branch_flag bitfield-endian swap test. This patch adds a include for "util/trace-event.h" in the sample-parsing test for importing tep_is_bigendian() and extends samples_same() to include "needs_swap" to detect/enable check for bitfield-endian swap. Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20211028113714.600549-2-maddy@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
63c12ae2f2
commit
10269a2ca2
1 changed files with 38 additions and 5 deletions
|
@ -13,6 +13,7 @@
|
||||||
#include "evsel.h"
|
#include "evsel.h"
|
||||||
#include "debug.h"
|
#include "debug.h"
|
||||||
#include "util/synthetic-events.h"
|
#include "util/synthetic-events.h"
|
||||||
|
#include "util/trace-event.h"
|
||||||
|
|
||||||
#include "tests.h"
|
#include "tests.h"
|
||||||
|
|
||||||
|
@ -30,9 +31,18 @@
|
||||||
} \
|
} \
|
||||||
} while (0)
|
} while (0)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Hardcode the expected values for branch_entry flags.
|
||||||
|
* These are based on the input value (213) specified
|
||||||
|
* in branch_stack variable.
|
||||||
|
*/
|
||||||
|
#define BS_EXPECTED_BE 0xa00d000000000000
|
||||||
|
#define BS_EXPECTED_LE 0xd5000000
|
||||||
|
#define FLAG(s) s->branch_stack->entries[i].flags
|
||||||
|
|
||||||
static bool samples_same(const struct perf_sample *s1,
|
static bool samples_same(const struct perf_sample *s1,
|
||||||
const struct perf_sample *s2,
|
const struct perf_sample *s2,
|
||||||
u64 type, u64 read_format)
|
u64 type, u64 read_format, bool needs_swap)
|
||||||
{
|
{
|
||||||
size_t i;
|
size_t i;
|
||||||
|
|
||||||
|
@ -100,8 +110,14 @@ static bool samples_same(const struct perf_sample *s1,
|
||||||
if (type & PERF_SAMPLE_BRANCH_STACK) {
|
if (type & PERF_SAMPLE_BRANCH_STACK) {
|
||||||
COMP(branch_stack->nr);
|
COMP(branch_stack->nr);
|
||||||
COMP(branch_stack->hw_idx);
|
COMP(branch_stack->hw_idx);
|
||||||
for (i = 0; i < s1->branch_stack->nr; i++)
|
for (i = 0; i < s1->branch_stack->nr; i++) {
|
||||||
MCOMP(branch_stack->entries[i]);
|
if (needs_swap)
|
||||||
|
return ((tep_is_bigendian()) ?
|
||||||
|
(FLAG(s2).value == BS_EXPECTED_BE) :
|
||||||
|
(FLAG(s2).value == BS_EXPECTED_LE));
|
||||||
|
else
|
||||||
|
MCOMP(branch_stack->entries[i]);
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
if (type & PERF_SAMPLE_REGS_USER) {
|
if (type & PERF_SAMPLE_REGS_USER) {
|
||||||
|
@ -248,7 +264,7 @@ static int do_test(u64 sample_type, u64 sample_regs, u64 read_format)
|
||||||
},
|
},
|
||||||
};
|
};
|
||||||
struct sample_read_value values[] = {{1, 5}, {9, 3}, {2, 7}, {6, 4},};
|
struct sample_read_value values[] = {{1, 5}, {9, 3}, {2, 7}, {6, 4},};
|
||||||
struct perf_sample sample_out;
|
struct perf_sample sample_out, sample_out_endian;
|
||||||
size_t i, sz, bufsz;
|
size_t i, sz, bufsz;
|
||||||
int err, ret = -1;
|
int err, ret = -1;
|
||||||
|
|
||||||
|
@ -313,12 +329,29 @@ static int do_test(u64 sample_type, u64 sample_regs, u64 read_format)
|
||||||
goto out_free;
|
goto out_free;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!samples_same(&sample, &sample_out, sample_type, read_format)) {
|
if (!samples_same(&sample, &sample_out, sample_type, read_format, evsel.needs_swap)) {
|
||||||
pr_debug("parsing failed for sample_type %#"PRIx64"\n",
|
pr_debug("parsing failed for sample_type %#"PRIx64"\n",
|
||||||
sample_type);
|
sample_type);
|
||||||
goto out_free;
|
goto out_free;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if (sample_type == PERF_SAMPLE_BRANCH_STACK) {
|
||||||
|
evsel.needs_swap = true;
|
||||||
|
evsel.sample_size = __evsel__sample_size(sample_type);
|
||||||
|
err = evsel__parse_sample(&evsel, event, &sample_out_endian);
|
||||||
|
if (err) {
|
||||||
|
pr_debug("%s failed for sample_type %#"PRIx64", error %d\n",
|
||||||
|
"evsel__parse_sample", sample_type, err);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!samples_same(&sample, &sample_out_endian, sample_type, read_format, evsel.needs_swap)) {
|
||||||
|
pr_debug("parsing failed for sample_type %#"PRIx64"\n",
|
||||||
|
sample_type);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
ret = 0;
|
ret = 0;
|
||||||
out_free:
|
out_free:
|
||||||
free(event);
|
free(event);
|
||||||
|
|
Loading…
Reference in a new issue