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| author | Stefan Liebler <stli@linux.ibm.com> | 2019-09-18 12:40:00 +0200 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2019-09-18 12:42:39 +0200 |
| commit | 2f9046fb059e94fe254c9a4ff5bcd52182069e44 (patch) | |
| tree | 87aea58e9ee081f70571cc6daaa8f81ea6df9b37 /ChangeLog | |
| parent | 87accae3978c77c1a50d19ea8e3da3f0248d2612 (diff) | |
| download | glibc-2f9046fb059e94fe254c9a4ff5bcd52182069e44.tar.gz glibc-2f9046fb059e94fe254c9a4ff5bcd52182069e44.tar.xz glibc-2f9046fb059e94fe254c9a4ff5bcd52182069e44.zip | |
Add UNSUPPORTED check in elf/tst-pldd.
The testcase forks a child process and runs pldd with PID of this child. On systems where /proc/sys/kernel/yama/ptrace_scope differs from zero, pldd will fail with /usr/bin/pldd: cannot attach to process 3: Operation not permitted This patch checks if ptrace_scope exists, is zero "classic ptrace permissions" or one "restricted ptrace". If ptrace_scope exists and has a higher restriction, then the test is marked as UNSUPPORTED. The case "restricted ptrace" is handled by rearranging the processes involved during the test. Now we have the following process tree: -parent: do_test (performs output checks) --subprocess 1: pldd_process (becomes pldd via execve) ---subprocess 2: target_process (ptraced via pldd) ChangeLog: * elf/tst-pldd.c (do_test): Add UNSUPPORTED check. Rearrange subprocesses. (pldd_process): New function. * support/Makefile (libsupport-routines): Add support_ptrace. * support/xptrace.h: New file. * support/support_ptrace.c: Likewise.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 37d27960df..adc93a794a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,12 @@ +2019-09-18 Stefan Liebler <stli@linux.ibm.com> + + * elf/tst-pldd.c (do_test): Add UNSUPPORTED check. + Rearrange subprocesses. + (pldd_process): New function. + * support/Makefile (libsupport-routines): Add support_ptrace. + * support/xptrace.h: New file. + * support/support_ptrace.c: Likewise. + 2019-09-17 Adhemerval Zanella <adhemerval.zanella@linaro.org> * sysdeps/unix/sysv/linux/sparc/sparc64/time.c: Remove file. |