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perf symbols: Refactor vmlinux_path__init() to ease path additions 

Refactor vmlinux_path__init() to ease subsequent additions of new
vmlinux locations.

Signed-off-by: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
Acked-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1448469166-61363-2-git-send-email-tumanova@linux.vnet.ibm.com
[ Rename vmlinux_path__update() to vmlinux_path__add() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ekaterina Tumanova 2015-11-25 17:32:45 +01:00 committed by Arnaldo Carvalho de Melo
parent 5e50426d5d
commit aac4864727
1 changed files with 33 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
tools/perf/util/symbol.c
View File

@ -1860,24 +1860,43 @@ static void vmlinux_path__exit(void)
zfree(&vmlinux_path); zfree(&vmlinux_path);
} }
static const char * const vmlinux_paths[] = {
"vmlinux",
"/boot/vmlinux"
};
static const char * const vmlinux_paths_upd[] = {
"/boot/vmlinux-%s",
"/usr/lib/debug/boot/vmlinux-%s",
"/lib/modules/%s/build/vmlinux",
"/usr/lib/debug/lib/modules/%s/vmlinux"
};
static int vmlinux_path__add(const char *new_entry)
{
vmlinux_path[vmlinux_path__nr_entries] = strdup(new_entry);
if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
return -1;
++vmlinux_path__nr_entries;
return 0;
}
static int vmlinux_path__init(struct perf_env *env) static int vmlinux_path__init(struct perf_env *env)
{ {
struct utsname uts; struct utsname uts;
char bf[PATH_MAX]; char bf[PATH_MAX];
char *kernel_version; char *kernel_version;
unsigned int i;
vmlinux_path = malloc(sizeof(char *) * 6); vmlinux_path = malloc(sizeof(char *) * (ARRAY_SIZE(vmlinux_paths) +
ARRAY_SIZE(vmlinux_paths_upd)));
if (vmlinux_path == NULL) if (vmlinux_path == NULL)
return -1; return -1;
vmlinux_path[vmlinux_path__nr_entries] = strdup("vmlinux"); for (i = 0; i < ARRAY_SIZE(vmlinux_paths); i++)
if (vmlinux_path[vmlinux_path__nr_entries] == NULL) if (vmlinux_path__add(vmlinux_paths[i]) < 0)
goto out_fail; goto out_fail;
++vmlinux_path__nr_entries;
vmlinux_path[vmlinux_path__nr_entries] = strdup("/boot/vmlinux");
if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
goto out_fail;
++vmlinux_path__nr_entries;
/* only try kernel version if no symfs was given */ /* only try kernel version if no symfs was given */
if (symbol_conf.symfs[0] != 0) if (symbol_conf.symfs[0] != 0)
@ -1892,28 +1911,11 @@ static int vmlinux_path__init(struct perf_env *env)
kernel_version = uts.release; kernel_version = uts.release;
} }
snprintf(bf, sizeof(bf), "/boot/vmlinux-%s", kernel_version); for (i = 0; i < ARRAY_SIZE(vmlinux_paths_upd); i++) {
vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); snprintf(bf, sizeof(bf), vmlinux_paths_upd[i], kernel_version);
if (vmlinux_path[vmlinux_path__nr_entries] == NULL) if (vmlinux_path__add(bf) < 0)
goto out_fail; goto out_fail;
++vmlinux_path__nr_entries; }
snprintf(bf, sizeof(bf), "/usr/lib/debug/boot/vmlinux-%s",
kernel_version);
vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
goto out_fail;
++vmlinux_path__nr_entries;
snprintf(bf, sizeof(bf), "/lib/modules/%s/build/vmlinux", kernel_version);
vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
goto out_fail;
++vmlinux_path__nr_entries;
snprintf(bf, sizeof(bf), "/usr/lib/debug/lib/modules/%s/vmlinux",
kernel_version);
vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
goto out_fail;
++vmlinux_path__nr_entries;
return 0; return 0;