diff options
Diffstat (limited to 'gdb/procfs.c')
| -rw-r--r-- | gdb/procfs.c | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/gdb/procfs.c b/gdb/procfs.c index 8a2eda4..f5e93fc 100644 --- a/gdb/procfs.c +++ b/gdb/procfs.c @@ -1818,10 +1818,10 @@ procfs_init_inferior (pid) pip = create_procinfo (pid); +#ifndef PIOCSSPCACT procfs_set_syscall_trap (pip, SYS_exit, PROCFS_SYSCALL_ENTRY, procfs_exit_handler); -#ifndef PRFS_STOPEXEC #ifdef SYS_exec procfs_set_syscall_trap (pip, SYS_exec, PROCFS_SYSCALL_EXIT, procfs_exec_handler); @@ -1834,7 +1834,7 @@ procfs_init_inferior (pid) procfs_set_syscall_trap (pip, SYS_execve, PROCFS_SYSCALL_EXIT, procfs_exec_handler); #endif -#endif /* PRFS_STOPEXEC */ +#endif /* PIOCSSPCACT */ /* Setup traps on exit from sproc() */ @@ -1982,7 +1982,10 @@ proc_set_exec_trap () #ifdef PIOCSSPCACT /* Under Alpha OSF/1 we have to use a PIOCSSPCACT ioctl to trace - exits from exec system calls because of the user level loader. */ + exits from exec system calls because of the user level loader. + Starting with OSF/1-4.0, tracing the entry to the exit system + call no longer works. So we have to use PRFS_STOPTERM to trace + termination of the inferior. */ { int prfs_flags; @@ -1992,7 +1995,7 @@ proc_set_exec_trap () gdb_flush (gdb_stderr); _exit (127); } - prfs_flags |= PRFS_STOPEXEC; + prfs_flags |= PRFS_STOPEXEC | PRFS_STOPTERM; if (ioctl (fd, PIOCSSPCACT, &prfs_flags) < 0) { perror (procname); @@ -2000,7 +2003,7 @@ proc_set_exec_trap () _exit (127); } } -#else +#else /* PIOCSSPCACT */ /* GW: Rationale... Not all systems with /proc have all the exec* syscalls with the same names. On the SGI, for example, there is no SYS_exec, but there @@ -2022,7 +2025,6 @@ proc_set_exec_trap () gdb_flush (gdb_stderr); _exit (127); } -#endif praddset (&entryset, SYS_exit); @@ -2032,6 +2034,7 @@ proc_set_exec_trap () gdb_flush (gdb_stderr); _exit (126); } +#endif /* PIOCSSPCACT */ /* Turn off inherit-on-fork flag so that all grand-children of gdb start with tracing flags cleared. */ @@ -2644,6 +2647,27 @@ procfs_wait (pid, ourstatus) error ("PR_SYSEXIT, unhandled system call %d", what); } break; +#ifdef PR_DEAD + case (short)PR_DEAD: + { + int dummy; + + /* The inferior process is about to terminate. + pr_what has the process's exit or return value. + A PIOCRUN ioctl must be used to restart the process so it + can finish exiting. */ + + pi->prrun.pr_flags = PRCFAULT; + + if (ioctl (pi->fd, PIOCRUN, &pi->prrun) != 0) + perror_with_name (pi->pathname); + + if (wait (&dummy) < 0) + rtnval = -1; + statval = pi->prstatus.pr_what; + } + break; +#endif case PR_REQUESTED: statval = (SIGSTOP << 8) | 0177; break; |