d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

libpmc: make libpmc_pmu_utils.c more amenable to porting

Browse Source 
The current version has every function stubbed out for !x86. Only two
functions (pmu_alias_get() and pmc_pmu_pmcallocate() are really platform
dependent, so reduce the width of the ifdefs and remove some of the
stubs.

Reviewed by:	ray
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D30532
This commit is contained in:
Mitchell Horne 2021-05-31 11:24:44 -03:00
parent 507d68984a
commit 0024f1aa77
1 changed files with 12 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
lib/libpmc/libpmc_pmu_util.c
View File

@ -43,12 +43,12 @@
#include <libpmcstat.h>
#include "pmu-events/pmu-events.h"
#if defined(__amd64__) || defined(__i386__)
struct pmu_alias {
const char *pa_alias;
const char *pa_name;
};
#if defined(__amd64__) || defined(__i386__)
typedef enum {
PMU_INVALID,
PMU_INTEL,
@ -139,6 +139,16 @@ pmu_alias_get(const char *name)
return (name);
}
#else
static const char *
pmu_alias_get(const char *name)
{
return (name);
}
#endif
struct pmu_event_desc {
uint64_t ped_period;
uint64_t ped_offcore_rsp;
@ -417,6 +427,7 @@ pmc_pmu_print_counter_full(const char *ev)
}
}
#if defined(__amd64__) || defined(__i386__)
static int
pmc_pmu_amd_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm,
struct pmu_event_desc *ped)
@ -540,61 +551,9 @@ pmc_pmu_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm)
#else
uint64_t
pmc_pmu_sample_rate_get(const char *event_name __unused)
{
return (DEFAULT_SAMPLE_COUNT);
}
void
pmc_pmu_print_counters(const char *event_name __unused)
{
}
void
pmc_pmu_print_counter_desc(const char *e __unused)
{
}
void
pmc_pmu_print_counter_desc_long(const char *e __unused)
{
}
void
pmc_pmu_print_counter_full(const char *e __unused)
{
}
int
pmc_pmu_enabled(void)
{
return (0);
}
int
pmc_pmu_pmcallocate(const char *e __unused, struct pmc_op_pmcallocate *p __unused)
{
return (EOPNOTSUPP);
}
const char *
pmc_pmu_event_get_by_idx(const char *c __unused, int idx __unused)
{
return (NULL);
}
int
pmc_pmu_stat_mode(const char ***a __unused)
{
return (EOPNOTSUPP);
}
int
pmc_pmu_idx_get_by_event(const char *c __unused, const char *e __unused)
{
return (-1);
}
#endif