proc_modules impl for self process

This commit is contained in:
Doug MacEachern 2004-07-05 22:49:21 +00:00
parent 51eb79a392
commit 992f277423
1 changed files with 44 additions and 3 deletions

View File

@ -3,6 +3,7 @@
#include "sigar_os.h"
#include "sigar_util.h"
#include <sys/link.h>
#include <sys/proc.h>
#include <sys/swap.h>
#include <sys/stat.h>
@ -747,8 +748,8 @@ static int sigar_pgrab_modules(sigar_t *sigar, sigar_pid_t pid,
if (!sigar->plib) {
sigar_log_printf(sigar, SIGAR_LOG_WARN,
"dlopen(%s) = %s",
LIBPROC, dlerror());
"[%s] dlopen(%s) = %s",
SIGAR_FUNC, LIBPROC, dlerror());
return SIGAR_ENOTIMPL;
}
@ -828,11 +829,51 @@ static int sigar_pgrab_modules(sigar_t *sigar, sigar_pid_t pid,
return SIGAR_OK;
}
static int sigar_dlinfo_modules(sigar_t *sigar, sigar_proc_modules_t *procmods)
{
void *handle;
Dl_info dli;
Link_map *map;
if (!dladdr((void *)((uintptr_t)sigar_dlinfo_modules), &dli)) {
sigar_log_printf(sigar, SIGAR_LOG_ERROR,
"[%s] dladdr(%s) = %s",
SIGAR_FUNC, SIGAR_FUNC, dlerror());
return ESRCH;
}
if (!(handle = dlopen(dli.dli_fname, RTLD_LAZY))) {
sigar_log_printf(sigar, SIGAR_LOG_ERROR,
"[%s] dlopen(%s) = %s",
SIGAR_FUNC, dli.dli_fname, dlerror());
return ESRCH;
}
dlinfo(handle, RTLD_DI_LINKMAP, &map);
do {
int status =
procmods->module_getter(procmods->data,
map->l_name, strlen(map->l_name));
if (status != SIGAR_OK) {
/* not an error; just stop iterating */
return status;
}
} while ((map = map->l_next));
dlclose(handle);
return SIGAR_OK;
}
int sigar_proc_modules_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_modules_t *procmods)
{
if (pid == sigar_pid_get(sigar)) {
return SIGAR_ENOTIMPL;
/* Pgrab would return G_SELF, this is faster anyhow */
/* XXX one difference to Pgrab, first entry is not the exe name */
return sigar_dlinfo_modules(sigar, procmods);
}
else {
return sigar_pgrab_modules(sigar, pid, procmods);