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Pedro Alves 95824559df [C++/mingw] Simplify first chance exception handling
Building in C++ errors out with:

../../src/gdb/windows-nat.c: In function 'int get_windows_debug_event(target_ops*, int, target_waitstatus*)':
../../src/gdb/windows-nat.c:1503:13: warning: invalid conversion from 'int' to 'gdb_signal' [-fpermissive]
    last_sig = 1;
             ^
../../src/gdb/windows-nat.c:1533:43: warning: invalid conversion from 'int' to 'gdb_signal' [-fpermissive]
  windows_resume (ops, minus_one_ptid, 0, 1);
                                           ^
../../src/gdb/windows-nat.c:1228:1: warning:   initializing argument 4 of 'void windows_resume(target_ops*, ptid_t, int, gdb_signal)' [-fpermissive]
 windows_resume (struct target_ops *ops,
 ^

Looking at the code, I can't figure out why we treat first chance
exceptions any different here.

AFAICS, we set last_sig to 1, and then call windows_resume passing
signal==1, so the DBG_EXCEPTION_NOT_HANDLED code path in win32_resume
is taken:

~~~
  if (sig != GDB_SIGNAL_0)
    {
      if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT)
	{
	  OUTMSG (("Cannot continue with signal %d here.\n", sig));
	}
      else if (sig == last_sig)
	continue_status = DBG_EXCEPTION_NOT_HANDLED;
      else
	OUTMSG (("Can only continue with recieved signal %d.\n", last_sig));
    }
~~~

Fix this by removing this special casing.  gdbserver also goes
straight to continuing with DBG_EXCEPTION_NOT_HANDLED, AFAICS.

gdb/ChangeLog:
2015-11-17  Pedro Alves  <palves@redhat.com>

	* windows-nat.c (handle_exception): Return 0 for first chance
	exceptions.
	(get_windows_debug_event): Adjust.
2015-11-17 15:21:45 +00:00
bfd Fix a problematic message with the STM32L4XX fixup on 32-bit hosts. 2015-11-17 11:37:14 +00:00
binutils Bump version to 2.26.51 2015-11-14 16:24:39 -08:00
config
cpu
elfcpp
etc
gas gas: microblaze: fix shift overflow 2015-11-16 23:21:39 -05:00
gdb [C++/mingw] Simplify first chance exception handling 2015-11-17 15:21:45 +00:00
gold Fix problem where bss symbols for copy relocations are marked local. 2015-11-14 11:04:01 -08:00
gprof Bump version to 2.26.51 2015-11-14 16:24:39 -08:00
include Mach-O: add new defines and struct for darwin 14.5 2015-11-17 15:03:25 +01:00
intl
ld Fixes an invalid warning about memory region overflow on the ARM. 2015-11-16 14:21:28 +00:00
libdecnumber
libiberty
opcodes Fix the disassembly of conditional instructions will illegal condition selections. 2015-11-17 11:37:14 +00:00
readline
sim sim: sim-close: use XCONCAT2 helper 2015-11-17 00:48:07 -05:00
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		   README for GNU development tools

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