[PATCH 2/2] x86: change syscall_trace_leave() to rely on tracehook_report_syscall_exit(step)

Extract arch_fill_sigtrap_info() from send_sigtrap() and change syscall_trace_leave() to rely on tracehook_report_syscall_exit() to handle stepping. Note: before this patch x86 generated the unnecessary SIGTRAP when PTRACE_SINGLESTEP done at the syscall-exit stop, now x86 matches other architectur

[PATCH 1/2] teach tracehook_report_syscall_exit() to handle stepping

Preparation, no changes in compiled code. Currently tracehook_report_syscall_exit() ignores "int step" argument. Each architecture has to implement the stepping itself in the low-level code, and the behaviour is not consistent across different machines. Change tracehook_report_syscall_exit() to h

[PATCH 0/2] Was: introduce suppress_sigtrap() to prevent unwanted send_sigtrap()

On 11/06, Roland McGrath wrote: > > All that part does is move all decisions about what to do into the > tracehook/utrace/ptrace layers out of arch code. > ... > After the arch/tracehook cleanup we've been discussing, what happens here > is consistent across machines. Yes, agreed. Just I greatly m

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