diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/gnu/unwind-resume.c | 8 |
2 files changed, 11 insertions, 2 deletions
@@ -1,5 +1,10 @@ 2018-01-11 Florian Weimer <fweimer@redhat.com> + * sysdeps/gnu/unwind-resume.c (__libgcc_s_init): Update comment + and error message. + +2018-01-11 Florian Weimer <fweimer@redhat.com> + [BZ #22636] * nptl/Makefile (tests): Add tst-minstack-cancel, tst-minstack-exit. * nptl/tst-minstack-cancel.c, nptl/tst-minstack-exit.c: New files. diff --git a/sysdeps/gnu/unwind-resume.c b/sysdeps/gnu/unwind-resume.c index 94704c9a2b..7f9a1bf2c7 100644 --- a/sysdeps/gnu/unwind-resume.c +++ b/sysdeps/gnu/unwind-resume.c @@ -35,13 +35,17 @@ __libgcc_s_init (void) void *resume, *personality; void *handle; - handle = __libc_dlopen (LIBGCC_S_SO); + /* Use RTLD_NOW here for consistency with pthread_cancel_init. + RTLD_NOW will rarely make a difference here because unwinding is + already in progress, so libgcc_s.so has already been loaded if + its unwinder is used. */ + handle = __libc_dlopen_mode (LIBGCC_S_SO, RTLD_NOW | __RTLD_DLOPEN); if (handle == NULL || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL) __libc_fatal (LIBGCC_S_SO - " must be installed for pthread_cancel to work\n"); + " must be installed for unwinding to work\n"); #ifdef PTR_MANGLE PTR_MANGLE (resume); |