glibc/SOURCES/glibc-rh2047981-1.patch
2022-11-08 09:12:41 +00:00

99 lines
3.0 KiB
Diff

commit eb77a1fccc7e60cea32245c11288c7f1d92545fa
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Oct 16 18:19:51 2019 +0200
dlfcn: Remove remnants of caller sensitivity from dlinfo
dlinfo operates on a specific handle, which means that there is no
caller sensivity involved.
diff --git a/dlfcn/dlinfo.c b/dlfcn/dlinfo.c
index 964572cc670ceba4..23ef3f57ca41afdf 100644
--- a/dlfcn/dlinfo.c
+++ b/dlfcn/dlinfo.c
@@ -26,7 +26,7 @@
int
dlinfo (void *handle, int request, void *arg)
{
- return __dlinfo (handle, request, arg, RETURN_ADDRESS (0));
+ return __dlinfo (handle, request, arg);
}
#else
@@ -35,7 +35,6 @@ dlinfo (void *handle, int request, void *arg)
struct dlinfo_args
{
- ElfW(Addr) caller;
void *handle;
int request;
void *arg;
@@ -47,24 +46,6 @@ dlinfo_doit (void *argsblock)
struct dlinfo_args *const args = argsblock;
struct link_map *l = args->handle;
-# if 0
- if (args->handle == RTLD_SELF)
- {
- Lmid_t nsid;
-
- /* Find the highest-addressed object that CALLER is not below. */
- for (nsid = 0; nsid < DL_NNS; ++nsid)
- for (l = GL(dl_ns)[nsid]._ns_loaded; l != NULL; l = l->l_next)
- if (caller >= l->l_map_start && caller < l->l_map_end
- && (l->l_contiguous || _dl_addr_inside_object (l, caller)))
- break;
-
- if (l == NULL)
- _dl_signal_error (0, NULL, NULL, N_("\
-RTLD_SELF used in code not dynamically loaded"));
- }
-# endif
-
switch (args->request)
{
case RTLD_DI_CONFIGADDR:
@@ -108,16 +89,14 @@ RTLD_SELF used in code not dynamically loaded"));
}
int
-__dlinfo (void *handle, int request, void *arg DL_CALLER_DECL)
+__dlinfo (void *handle, int request, void *arg)
{
# ifdef SHARED
if (!rtld_active ())
- return _dlfcn_hook->dlinfo (handle, request, arg,
- DL_CALLER);
+ return _dlfcn_hook->dlinfo (handle, request, arg);
# endif
- struct dlinfo_args args = { (ElfW(Addr)) DL_CALLER,
- handle, request, arg };
+ struct dlinfo_args args = { handle, request, arg };
return _dlerror_run (&dlinfo_doit, &args) ? -1 : 0;
}
# ifdef SHARED
diff --git a/include/dlfcn.h b/include/dlfcn.h
index 0dc57dbe2217cfe7..93dd369ab12a5745 100644
--- a/include/dlfcn.h
+++ b/include/dlfcn.h
@@ -117,7 +117,7 @@ struct dlfcn_hook
int (*dladdr) (const void *address, Dl_info *info);
int (*dladdr1) (const void *address, Dl_info *info,
void **extra_info, int flags);
- int (*dlinfo) (void *handle, int request, void *arg, void *dl_caller);
+ int (*dlinfo) (void *handle, int request, void *arg);
void *(*dlmopen) (Lmid_t nsid, const char *file, int mode, void *dl_caller);
void *pad[4];
};
@@ -143,8 +143,7 @@ extern int __dladdr (const void *address, Dl_info *info)
extern int __dladdr1 (const void *address, Dl_info *info,
void **extra_info, int flags)
attribute_hidden;
-extern int __dlinfo (void *handle, int request, void *arg DL_CALLER_DECL)
- attribute_hidden;
+extern int __dlinfo (void *handle, int request, void *arg) attribute_hidden;
#ifndef SHARED
struct link_map;