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| author | Florian Weimer <fweimer@redhat.com> | 2021-03-01 15:56:36 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-03-01 15:58:01 +0100 |
| commit | 9fc813e1a37d2e2d5e85a97d5ac4fc1c15d839fb (patch) | |
| tree | 62e5002b97acab6f776476c2325a37097693b0ea /sysdeps/nptl/fork.c | |
| parent | 764e9a0334350f52ab6953bef1db97f9b2e89ca5 (diff) | |
| download | glibc-9fc813e1a37d2e2d5e85a97d5ac4fc1c15d839fb.tar.gz glibc-9fc813e1a37d2e2d5e85a97d5ac4fc1c15d839fb.tar.xz glibc-9fc813e1a37d2e2d5e85a97d5ac4fc1c15d839fb.zip | |
Implement <unwind-link.h> for dynamically loading the libgcc_s unwinder
This will be used to consolidate the libgcc_s access for backtrace and pthread_cancel. Unlike the existing backtrace implementations, it provides some hardening based on pointer mangling. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/nptl/fork.c')
| -rw-r--r-- | sysdeps/nptl/fork.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/nptl/fork.c b/sysdeps/nptl/fork.c index 26703d958f..4fb4c2d254 100644 --- a/sysdeps/nptl/fork.c +++ b/sysdeps/nptl/fork.c @@ -33,6 +33,7 @@ #include <futex-internal.h> #include <malloc/malloc-internal.h> #include <nss/nss_database.h> +#include <unwind-link.h> static void fresetlockfiles (void) @@ -116,6 +117,8 @@ __libc_fork (void) /* Reset the lock state in the multi-threaded case. */ if (multiple_threads) { + __libc_unwind_link_after_fork (); + /* Release malloc locks. */ call_function_static_weak (__malloc_fork_unlock_child); |