Andreas Schwab
746e16d2b9
- Update to glibc 2.17.90 85891acadf1b:
* CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
has been fixed by disabling the use of pt_chown (Bugzilla #15755).
Distributions can re-enable building and using pt_chown via the new configure
option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
considerable security risks and should only be used if the distribution
understands and accepts the risks.
* CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
#15078).
* CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
fixed (Bugzilla #15330).
* Add support for calling C++11 thread_local object destructors on thread
and program exit. This needs compiler support for offloading C++11
destructor calls to glibc.
* Improved worst case performance of libm functions with double inputs and
output.
* Support for priority inherited mutexes in pthread condition variables on
non-x86 architectures.
* Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
* Optimized string functions for ARM. Implemented by Will Newton and
Richard Henderson.
* Added a benchmark framework to track performance of functions in glibc.
* New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
It is based on draft TS 18661 and currently enabled as a GNU extension.
* On Linux, the clock function now uses the clock_gettime system call
for improved precision, rather than old times system call.
* Added new API functions pthread_getattr_default_np and
pthread_setattr_default_np to get and set the default pthread
attributes of a process.
* Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
OBS-URL: https://build.opensuse.org/request/show/186119
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=304
60 lines
1.6 KiB
Diff
60 lines
1.6 KiB
Diff
2013-07-31 Andreas Schwab <schwab@suse.de>
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* elf/pldd.c (wait_for_ptrace_stop): New function.
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(main): Call it after attaching.
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Index: glibc-2.17.90/elf/pldd.c
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===================================================================
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--- glibc-2.17.90.orig/elf/pldd.c
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+++ glibc-2.17.90/elf/pldd.c
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@@ -34,6 +34,7 @@
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#include <unistd.h>
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#include <sys/ptrace.h>
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#include <sys/stat.h>
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+#include <sys/wait.h>
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#include <ldsodefs.h>
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#include <version.h>
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@@ -82,6 +83,7 @@ static char *exe;
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/* Local functions. */
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static int get_process_info (int dfd, long int pid);
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+static void wait_for_ptrace_stop (long int pid);
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int
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@@ -170,6 +172,8 @@ main (int argc, char *argv[])
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tid);
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}
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+ wait_for_ptrace_stop (tid);
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+
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struct thread_list *newp = alloca (sizeof (*newp));
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newp->tid = tid;
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newp->next = thread_list;
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@@ -194,6 +198,24 @@ main (int argc, char *argv[])
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}
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+/* Wait for PID to enter ptrace-stop state after being attached. */
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+static void
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+wait_for_ptrace_stop (long int pid)
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+{
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+ int status;
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+
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+ /* While waiting for SIGSTOP being delivered to the tracee we have to
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+ reinject any other pending signal. Ignore all other errors. */
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+ while (waitpid (pid, &status, __WALL) == pid && WIFSTOPPED (status))
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+ {
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+ /* The STOP signal should not be delivered to the tracee. */
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+ if (WSTOPSIG (status) == SIGSTOP)
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+ return;
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+ ptrace (PTRACE_CONT, pid, NULL, (void *) (uintptr_t) WSTOPSIG (status));
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+ }
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+}
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+
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+
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/* Handle program arguments. */
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static error_t
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parse_opt (int key, char *arg, struct argp_state *state)
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