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kill(2) and by trapping instruction.
* defs.h: Add sigtrap80 field to struct tcb.
* strace.c (alloc_tcb): Initialize it to SIGTRAP.
(detach): Use tcp->sigtrap80 instead of SIGTRAP constant.
(trace): Attempt to set PTRACE_O_TRACESYSGOOD and
PTRACE_O_TRACEEXEC options on each newly attached process,
distinquish between SIGTRAP and (SIGTRAP | 0x80) stops.
Fixes RH#162774 "strace ignores int3 SIGTRAP".
It merely passes tcp pointer to upeek instead of pid.
This is needed if one wants to check or change
some tcp fields.
I have patches which require this. I can imagine someone else
eventually needing to look at tcp for completely orthogonal reasons.
* util.c (string_quote): Fix support for NUL-terminated string.
Add comments.
(printpathn): Fix the case when "..." was appended to the output
but no truncation was actually made. Add comments.
(printstr): Fix memory allocation. Fix two cases when "..." was
appended to the output but no truncation was actually made.
Add comments.
Handle socket type flags introduced in linux 2.6.27.
* net.c (socktypes): Add SOCK_DCCP.
(sock_type_flags): New xlat structure.
(tprint_sock_type): New function.
(sys_socket, sys_socketpair): Use it to parse socket type and
socket type flags.
* strace.c (startup_child): Save child pid for future use.
(main): Exit/kill ourself with straced child's exitcode/signal.
(trace): If signalled process pid matches the saved child pid,
save the signal number. If terminated process pid matches the
saved child pid, save its exit status.
Patch from Denys Vlasenko <dvlasenk@redhat.com>
* syscall.c (is_restart_error): New function.
* defs.h (is_restart_error): Declare it.
* linux/dummy.h (sys_nanosleep): Uncouple from sys_adjtime().
* time.c (sys_nanosleep): New function, based on is_restart_error().
* linux/syscall.h (SYS_socket_subcall et al, SYS_ipc_subcall et al):
Don't define these if [__ARM_EABI__].
Reported by Johannes Stezenbach <js@sig21.net>.
* mem.c (madvise_flags): Typo fixes. Rename to madvise_cmds.
(sys_madvise): Use printxval, not printflags.
Reported by Rajeev V. Pillai <rajeevvp@gmail.com>.
* signal.c (sys_sigaction, sys_rt_sigaction): Don't omit the rest of
the struct after sa_handler is a known constant. Some sa_flags bits
have meaning even for SIG_IGN/SIG_DFL.
* util.c (CLONE_VM): Define if not defined already.
(setbpt): Clear CLONE_VM in the case we already clear CLONE_VFORK for
SYS_clone and SYS_clone2.
Reported by Michal Nowak.
Fixes RH#455078.
Fix compiler warnings.
* signal.c (sys_signal): Cast to SIG_* to the matching type LONG.
* strace.c (trace): Variables PSR and PC are now signed.
* syscall.c (syscall_enter): Variable RBS_END is now signed long.
Remove/add the RBS_END casts appropriately.
* util.c [IA64] (arg_setup): Variable BSP is now signed long.
Remove/add the BSP casts appropriately.
<ia32>: Initialize *STATE.
