Attachment 150183 Details for Bug 232371 – gdb-6.6-5 debugging patch I did not intend to ever publish.

[patch] gdb-6.6-5 debugging patch I did not intend to ever publish.

gdb-6.6-5-lwp-debug.patch (text/plain), 1.74 KB, created by Jan Kratochvil on 2007-03-15 23:17:31 UTC

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Creator: Jan Kratochvil

Created: 2007-03-15 23:17:31 UTC

Size: 1.74 KB

patch

obsolete

>diff -u -rup gdb-6.6/gdb/linux-nat.c gdb-6.6-patched/gdb/linux-nat.c
>--- gdb-6.6/gdb/linux-nat.c	2007-03-15 19:14:49.000000000 -0400
>+++ gdb-6.6-patched/gdb/linux-nat.c	2007-03-15 09:52:04.000000000 -0400
>@@ -989,6 +989,7 @@ lin_lwp_attach_lwp (ptid_t ptid, int ver
>       pid_t pid;
>       int status;
> 
>+fprintf(stderr,"ptrace(PTRACE_ATTACH,%d (pid=%d,lwp=%d,tid=%d)\n",(int)GET_LWP (ptid),(int)ptid.pid,(int)ptid.lwp,(int)ptid.tid);
>       if (ptrace (PTRACE_ATTACH, GET_LWP (ptid), 0, 0) < 0)
> 	{
> 	  /* If we fail to attach to the thread, issue a warning,
>@@ -1001,8 +1002,10 @@ lin_lwp_attach_lwp (ptid_t ptid, int ver
> 	  return -1;
> 	}
> 
>+fprintf(stderr,"lp before=%p\n",lp);
>       if (lp == NULL)
> 	lp = add_lwp (ptid);
>+fprintf(stderr,"lp after=%p\n",lp);
> 
>       if (debug_linux_nat)
> 	fprintf_unfiltered (gdb_stdlog,
>@@ -1010,16 +1013,20 @@ lin_lwp_attach_lwp (ptid_t ptid, int ver
> 			    target_pid_to_str (ptid));
> 
>       pid = my_waitpid (GET_LWP (ptid), &status, 0);
>+fprintf(stderr,"my_waitpid:pid=%d,errno=%s,status=%d\n",(int)pid,strerror(errno),status);
>       if (pid == -1 && errno == ECHILD)
> 	{
> 	  /* Try again with __WCLONE to check cloned processes.  */
> 	  pid = my_waitpid (GET_LWP (ptid), &status, __WCLONE);
> 	  lp->cloned = 1;
>+fprintf(stderr,"my_waitpid(__WCLONE):pid=%d,errno=%s,status=%d\n",(int)pid,strerror(errno),status);
> 	}
> 
>+fprintf(stderr,"check:pid=%d,ptid.pid=%d,ptid.lwp=%d,ptid.tid=%d\n",(int)pid,(int)ptid.pid,(int)ptid.lwp,(int)ptid.tid);
>       /* In some cases we get 0 for the `SIGSTOP' signal.  */
>-      gdb_assert (pid == GET_LWP (ptid)
>-		  && WIFSTOPPED (status));
>+      gdb_assert (pid == GET_LWP (ptid));
>+      gdb_assert (WIFSTOPPED (status));
>+fprintf(stderr,"check passed\n");
> 
>       target_post_attach (pid);
>

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