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Implement freebsd-specific vm walker.

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This commit is contained in:
Konstantin Belousov 2010-03-06 18:53:27 +02:00
parent 81f2de0083
commit 4de09a9c15
1 changed files with 23 additions and 2 deletions
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25
src/os-freebsd.c
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@ -24,8 +24,11 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#ifndef UNW_REMOTE_ONLY
#include <sys/types.h>
#include <sys/user.h>
#include <dlfcn.h>
#include <unistd.h>
#include <libutil.h>
#include "libunwind_i.h"
@ -33,9 +36,27 @@ HIDDEN int
tdep_get_elf_image (struct elf_image *ei, pid_t pid, unw_word_t ip,
unsigned long *segbase, unsigned long *mapoff)
{
struct kinfo_vmentry *freep, *kve;
int cnt, rc, i;
/* XXXKIB */
return (0);
freep = kinfo_getvmmap(pid, &cnt);
if (freep == NULL)
return (-1);
for (i = 0; i < cnt; i++) {
kve = &freep[i];
if (ip < kve->kve_start || ip >= kve->kve_end)
continue;
if (kve->kve_type != KVME_TYPE_VNODE) {
free(freep);
return (-1);
}
segbase = kve->kve_start;
mapoff = kve->kve_offset;
rc = elf_map_image(ei, kve->kve_path);
free(freep);
return (rc);
}
return (-1);
}
#endif /* UNW_REMOTE_ONLY */