glebfm/strace
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Cleanups. No logic changes.

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* defs.h: Define new ptrace constants unconditionally.
* strace.c (detach): Fix comment.
(trace): Remove now unnecessary "if USE_SEIZE".

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2013-06-18 18:09:39 +02:00
parent 02d2c708de
commit f1669e7975
2 changed files with 9 additions and 13 deletions
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18
defs.h
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@ -227,16 +227,14 @@ extern long ptrace(int, int, char *, long);
# define PTRACE_POKEUSER PTRACE_POKEUSR
#endif
#if USE_SEIZE
# undef PTRACE_SEIZE
# define PTRACE_SEIZE 0x4206
# undef PTRACE_INTERRUPT
# define PTRACE_INTERRUPT 0x4207
# undef PTRACE_LISTEN
# define PTRACE_LISTEN 0x4208
# undef PTRACE_EVENT_STOP
# define PTRACE_EVENT_STOP 128
#endif
#undef PTRACE_SEIZE
#define PTRACE_SEIZE 0x4206
#undef PTRACE_INTERRUPT
#define PTRACE_INTERRUPT 0x4207
#undef PTRACE_LISTEN
#define PTRACE_LISTEN 0x4208
#undef PTRACE_EVENT_STOP
#define PTRACE_EVENT_STOP 128
#ifdef ALPHA
# define REG_R0 0

4
strace.c
View File

@ -724,7 +724,7 @@ droptcb(struct tcb *tcp)
memset(tcp, 0, sizeof(*tcp));
}
/* detach traced process; continue with sig
/* Detach traced process.
* Never call DETACH twice on the same process as both unattached and
* attached-unstopped processes give the same ESRCH. For unattached process we
* would SIGSTOP it and wait for its SIGSTOP notification forever.
@ -2252,7 +2252,6 @@ trace(void)
goto restart_tracee;
/* It's group-stop */
#if USE_SEIZE
if (use_seize) {
/*
* This ends ptrace-stop, but does *not* end group-stop.
@ -2266,7 +2265,6 @@ trace(void)
continue;
}
/* We don't have PTRACE_LISTEN support... */
#endif
goto restart_tracee;
}