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-rw-r--r--lib/libproc/libproc.h1
-rw-r--r--lib/libproc/proc_sym.c47
-rw-r--r--lib/libproc/tests/proc_test.c41
3 files changed, 33 insertions, 56 deletions
diff --git a/lib/libproc/libproc.h b/lib/libproc/libproc.h
index 5798a3b4b58d..25f8aa62f12b 100644
--- a/lib/libproc/libproc.h
+++ b/lib/libproc/libproc.h
@@ -128,7 +128,6 @@ __BEGIN_DECLS
prmap_t *proc_addr2map(struct proc_handle *, uintptr_t);
prmap_t *proc_name2map(struct proc_handle *, const char *);
char *proc_objname(struct proc_handle *, uintptr_t, char *, size_t);
-prmap_t *proc_obj2map(struct proc_handle *, const char *);
int proc_iter_objs(struct proc_handle *, proc_map_f *, void *);
int proc_iter_symbyaddr(struct proc_handle *, const char *, int,
int, proc_sym_f *, void *);
diff --git a/lib/libproc/proc_sym.c b/lib/libproc/proc_sym.c
index cb950f2cb3dc..0f42111f6c16 100644
--- a/lib/libproc/proc_sym.c
+++ b/lib/libproc/proc_sym.c
@@ -274,31 +274,6 @@ proc_objname(struct proc_handle *p, uintptr_t addr, char *objname,
return (NULL);
}
-/*
- * Currently just returns the first mapping of the named object, effectively
- * what Plmid_to_map(p, PR_LMID_EVERY, objname) does in illumos libproc.
- */
-prmap_t *
-proc_obj2map(struct proc_handle *p, const char *objname)
-{
- char path[PATH_MAX], *base;
- prmap_t *map;
- size_t i;
-
- map = NULL;
- for (i = 0; i < p->nmappings; i++) {
- strlcpy(path, p->mappings[i].map.pr_mapname, sizeof(path));
- base = basename(path);
- if (strcmp(base, objname) == 0) {
- map = &p->mappings[i].map;
- break;
- }
- }
- if (map == NULL && strcmp(objname, "a.out") == 0 && p->exec_map != NULL)
- map = p->exec_map;
- return (map);
-}
-
int
proc_iter_objs(struct proc_handle *p, proc_map_f *func, void *cd)
{
@@ -468,9 +443,10 @@ _proc_name2map(struct proc_handle *p, const char *name)
{
char path[MAXPATHLEN], *base;
struct map_info *mapping;
- size_t i;
+ size_t i, len;
- mapping = NULL;
+ if ((len = strlen(name)) == 0)
+ return (NULL);
if (p->nmappings == 0)
if (proc_rdagent(p) == NULL)
return (NULL);
@@ -479,13 +455,18 @@ _proc_name2map(struct proc_handle *p, const char *name)
(void)strlcpy(path, mapping->map.pr_mapname, sizeof(path));
base = basename(path);
if (strcmp(base, name) == 0)
- break;
+ return (mapping);
+ }
+ /* If we didn't find a match, try matching prefixes of the basename. */
+ for (i = 0; i < p->nmappings; i++) {
+ strlcpy(path, p->mappings[i].map.pr_mapname, sizeof(path));
+ base = basename(path);
+ if (strncmp(base, name, len) == 0)
+ return (&p->mappings[i]);
}
- if (i == p->nmappings)
- mapping = NULL;
- if (mapping == NULL && strcmp(name, "a.out") == 0)
- mapping = _proc_addr2map(p, p->exec_map->pr_vaddr);
- return (mapping);
+ if (strcmp(name, "a.out") == 0)
+ return (_proc_addr2map(p, p->exec_map->pr_vaddr));
+ return (NULL);
}
prmap_t *
diff --git a/lib/libproc/tests/proc_test.c b/lib/libproc/tests/proc_test.c
index dbaace84f5a8..4143bdcbffce 100644
--- a/lib/libproc/tests/proc_test.c
+++ b/lib/libproc/tests/proc_test.c
@@ -1,5 +1,5 @@
/*-
- * Copyright (c) 2014, 2015 Mark Johnston <markj@FreeBSD.org>
+ * Copyright (c) 2014-2016 Mark Johnston <markj@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -152,15 +152,15 @@ verify_bkpt(struct proc_handle *phdl, GElf_Sym *sym, const char *symname,
"expected map name '%s' doesn't match '%s'", mapname, mapbname);
}
-ATF_TC(map_alias_obj2map);
-ATF_TC_HEAD(map_alias_obj2map, tc)
+ATF_TC(map_alias_name2map);
+ATF_TC_HEAD(map_alias_name2map, tc)
{
atf_tc_set_md_var(tc, "descr",
"Callers are supposed to be able to use \"a.out\" as an alias for "
- "the program executable. Make sure that proc_obj2map() handles "
+ "the program executable. Make sure that proc_name2map() handles "
"this properly.");
}
-ATF_TC_BODY(map_alias_obj2map, tc)
+ATF_TC_BODY(map_alias_name2map, tc)
{
struct proc_handle *phdl;
prmap_t *map1, *map2;
@@ -171,10 +171,10 @@ ATF_TC_BODY(map_alias_obj2map, tc)
(void)proc_rdagent(phdl);
/* Ensure that "target_prog" and "a.out" return the same map. */
- map1 = proc_obj2map(phdl, target_prog_file);
+ map1 = proc_name2map(phdl, target_prog_file);
ATF_REQUIRE_MSG(map1 != NULL, "failed to look up map for '%s'",
target_prog_file);
- map2 = proc_obj2map(phdl, aout_object);
+ map2 = proc_name2map(phdl, aout_object);
ATF_REQUIRE_MSG(map2 != NULL, "failed to look up map for '%s'",
aout_object);
ATF_CHECK_EQ(strcmp(map1->pr_mapname, map2->pr_mapname), 0);
@@ -184,15 +184,14 @@ ATF_TC_BODY(map_alias_obj2map, tc)
proc_free(phdl);
}
-ATF_TC(map_alias_name2map);
-ATF_TC_HEAD(map_alias_name2map, tc)
+ATF_TC(map_prefix_name2map);
+ATF_TC_HEAD(map_prefix_name2map, tc)
{
atf_tc_set_md_var(tc, "descr",
- "Callers are supposed to be able to use \"a.out\" as an alias for "
- "the program executable. Make sure that proc_name2map() handles "
- "this properly.");
+ "Verify that proc_name2map() returns prefix matches of the "
+ "basename of loaded objects if no full matches are found.");
}
-ATF_TC_BODY(map_alias_name2map, tc)
+ATF_TC_BODY(map_prefix_name2map, tc)
{
struct proc_handle *phdl;
prmap_t *map1, *map2;
@@ -202,13 +201,11 @@ ATF_TC_BODY(map_alias_name2map, tc)
/* Initialize the rtld_db handle. */
(void)proc_rdagent(phdl);
- /* Ensure that "target_prog" and "a.out" return the same map. */
- map1 = proc_name2map(phdl, target_prog_file);
- ATF_REQUIRE_MSG(map1 != NULL, "failed to look up map for '%s'",
- target_prog_file);
- map2 = proc_name2map(phdl, aout_object);
- ATF_REQUIRE_MSG(map2 != NULL, "failed to look up map for '%s'",
- aout_object);
+ /* Make sure that "ld-elf" and "ld-elf.so" return the same map. */
+ map1 = proc_name2map(phdl, "ld-elf");
+ ATF_REQUIRE_MSG(map1 != NULL, "failed to look up map for 'ld-elf'");
+ map2 = proc_name2map(phdl, "ld-elf.so");
+ ATF_REQUIRE_MSG(map2 != NULL, "failed to look up map for 'ld-elf.so'");
ATF_CHECK_EQ(strcmp(map1->pr_mapname, map2->pr_mapname), 0);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
@@ -315,7 +312,7 @@ ATF_TC_BODY(symbol_lookup_fail, tc)
/* Initialize the rtld_db handle. */
(void)proc_rdagent(phdl);
- map = proc_obj2map(phdl, target_prog_file);
+ map = proc_name2map(phdl, target_prog_file);
ATF_REQUIRE_MSG(map != NULL, "failed to look up map for '%s'",
target_prog_file);
@@ -376,8 +373,8 @@ ATF_TC_BODY(signal_forward, tc)
ATF_TP_ADD_TCS(tp)
{
- ATF_TP_ADD_TC(tp, map_alias_obj2map);
ATF_TP_ADD_TC(tp, map_alias_name2map);
+ ATF_TP_ADD_TC(tp, map_prefix_name2map);
ATF_TP_ADD_TC(tp, map_alias_name2sym);
ATF_TP_ADD_TC(tp, symbol_lookup);
ATF_TP_ADD_TC(tp, symbol_lookup_fail);