[commit/head+branch] fix build failure on pa-hpux (due to syscall patch)

[Joel Brobecker <brobecker at adacore dot com>]

Hello,

Noticed a couple of compilation errors on pa-hpux. One was due to
the absence of a PT_SYSCALL macro in the pa-hpux include headers,
and the other one was because a field got renamed (I grep'ed all
sources, just to make sure that we did not forget any other update).

Fixed thusly, on both head and branch.  The change in gdb_ptrace.h
is not exactly on the totally obvious side, in terms of what value
to use if PT_SYSCALL is not defined, but it should not matter in
practice.  I don't believe catch syscall has been ported to pa-hpux
anyway.

2009-09-17  Joel Brobecker  <brobecker@adacore.com>

        Fix a build failure on pa-hpux:
        * gdb_ptrace.h (PT_SYSCALL): Define here if not already defined.
        * inf-ttrace.c (inf_ttrace_wait): Fix compilation failure
        introduced after field syscall_id inside struct target_waitstatus
        has been renamed into syscall_number.

-- 
Joel

Index: gdb_ptrace.h
===================================================================
RCS file: /cvs/src/src/gdb/gdb_ptrace.h,v
retrieving revision 1.10
diff -u -p -r1.10 gdb_ptrace.h
--- gdb_ptrace.h	3 Jan 2009 05:57:51 -0000	1.10
+++ gdb_ptrace.h	17 Sep 2009 19:12:14 -0000
@@ -106,6 +106,17 @@
 # endif
 #endif
 
+/* For systems such as HP/UX that do not provide PT_SYSCALL, define it
+   here as an alias for PT_CONTINUE.  This is what the PT_SYSCALL
+   request is expected to do, in addition to stopping when entering/
+   exiting a system call.  Chances are, if the system supports system
+   call tracing, enabling this feature is probably done separately;
+   and there is probably no special request that we would be required
+   to use when resuming the execution of our program.  */
+#ifndef PT_SYSCALL
+# define PT_SYSCALL PT_CONTINUE
+#endif
+
 /* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64
    or whatever it's called these days, don't provide a prototype for
    ptrace.  Provide one to silence compiler warnings.  */
Index: inf-ttrace.c
===================================================================
RCS file: /cvs/src/src/gdb/inf-ttrace.c,v
retrieving revision 1.48
diff -u -p -r1.48 inf-ttrace.c
--- inf-ttrace.c	24 May 2009 21:06:53 -0000	1.48
+++ inf-ttrace.c	17 Sep 2009 19:12:14 -0000
@@ -1104,7 +1104,7 @@ inf_ttrace_wait (struct target_ops *ops,
 	  inf_ttrace_disable_page_protections (tts.tts_pid);
 	}
       ourstatus->kind = TARGET_WAITKIND_SYSCALL_ENTRY;
-      ourstatus->value.syscall_id = tts.tts_scno;
+      ourstatus->value.syscall_number = tts.tts_scno;
       break;
 
     case TTEVT_SYSCALL_RETURN:
@@ -1119,7 +1119,7 @@ inf_ttrace_wait (struct target_ops *ops,
 	  inf_ttrace_num_lwps_in_syscall--;
 	}
       ourstatus->kind = TARGET_WAITKIND_SYSCALL_RETURN;
-      ourstatus->value.syscall_id = tts.tts_scno;
+      ourstatus->value.syscall_number = tts.tts_scno;
       break;
 
     default: