Teach procstat_get_shm_info_kvm() how to fetch the pathname of a SHM file
descriptor from a core and set it in fts->fs_path. MFC after: 1 week
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de27bf3220
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a9f5e42532
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=236717
@ -881,6 +881,8 @@ procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
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{
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struct shmfd shmfd;
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void *shmfdp;
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char *path;
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int i;
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assert(kd);
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assert(shm);
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@ -896,6 +898,21 @@ procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst,
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}
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shm->mode = S_IFREG | shmfd.shm_mode;
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shm->size = shmfd.shm_size;
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if (fst->fs_path == NULL && shmfd.shm_path != NULL) {
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path = malloc(MAXPATHLEN);
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for (i = 0; i < MAXPATHLEN - 1; i++) {
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if (!kvm_read_all(kd, (unsigned long)shmfd.shm_path + i,
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path + i, 1))
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break;
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if (path[i] == '\0')
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break;
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}
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path[i] = '\0';
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if (i == 0)
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free(path);
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else
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fst->fs_path = path;
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}
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return (0);
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fail:
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