feeaec18d4
This fixes a panic when attaching to an already-stopped process after r325028. While here, clean up a few other things in the control flow of the 'sendsig' section: - Only check for P_STOPPED_TRACE rather than either of P_STOPPED_SIG or P_STOPPED_TRACE for most ptrace requests. The signal handling code in kern_sig.c never sets just P_STOPPED_SIG for a traced process, so if P_STOPPED_SIG is stopped, P_STOPPED_TRACE should be set anyway. Remove a related debug printf. Assuming P_STOPPED_TRACE permits simplifications in the 'sendsig:' block. - Move the block to clear the pending thread state up into a new block conditional on P_STOPPED_TRACE and handle delivering pending signals to the reporting thread and clearing the reporting thread's state in this block. - Consolidate case to send a signal to the process in a single case for PT_ATTACH. The only case that could have been in the else before was a PT_ATTACH where P_STOPPED_SIG was not set, so both instances of kern_psignal() collapse down to just PT_ATTACH. Reported by: pho, mmel Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D12837 |
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| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| ObsoleteFiles.inc | ||
| README | ||
| README.md | ||
| UPDATING | ||
FreeBSD Source:
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