diff options
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 /sysdeps | |
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 'sysdeps')
0 files changed, 0 insertions, 0 deletions