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Fix debugging of WOW64 processes

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The new code regarding pending stops only checks for EXCEPTION_BREAKPOINT,
but for WOW64 processes STATUS_WX86_BREAKPOINT is necessary as well.

Also, ignore_first_breakpoint is used now in nat/windows-nat.c as well,
but was not available there.

gdb/ChangeLog:

2020-04-10  Hannes Domani  <ssbssa@yahoo.de>

	* nat/windows-nat.c (STATUS_WX86_BREAKPOINT, STATUS_WX86_SINGLE_STEP):
	Move to...
	* nat/windows-nat.h (STATUS_WX86_BREAKPOINT, STATUS_WX86_SINGLE_STEP):
	... here.
	* windows-nat.c (windows_nat_target::get_windows_debug_event):
	Check for STATUS_WX86_BREAKPOINT.
	(windows_nat_target::wait): Same.
This commit is contained in:
Hannes Domani
2020-04-09 16:33:20 +02:00
parent a5d214978f
commit 13302e956f
4 changed files with 30 additions and 8 deletions
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13
gdb/windows-nat.c
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@@ -235,7 +235,6 @@ static int saw_create;
static int open_process_used = 0;
#ifdef __x86_64__
static bool wow64_process = false;
static bool ignore_first_breakpoint = false;
#endif
/* User options. */
@@ -1721,8 +1720,10 @@ windows_nat_target::get_windows_debug_event (int pid,
thread_id, desired_stop_thread_id));
if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT
&& (current_event.u.Exception.ExceptionRecord.ExceptionCode
== EXCEPTION_BREAKPOINT)
&& ((current_event.u.Exception.ExceptionRecord.ExceptionCode
== EXCEPTION_BREAKPOINT)
|| (current_event.u.Exception.ExceptionRecord.ExceptionCode
== STATUS_WX86_BREAKPOINT))
&& windows_initialization_done)
{
ptid_t ptid = ptid_t (current_event.dwProcessId, thread_id, 0);
@@ -1801,8 +1802,10 @@ windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
{
current_windows_thread->stopped_at_software_breakpoint = false;
if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT
&& (current_event.u.Exception.ExceptionRecord.ExceptionCode
== EXCEPTION_BREAKPOINT)
&& ((current_event.u.Exception.ExceptionRecord.ExceptionCode
== EXCEPTION_BREAKPOINT)
|| (current_event.u.Exception.ExceptionRecord.ExceptionCode
== STATUS_WX86_BREAKPOINT))
&& windows_initialization_done)
current_windows_thread->stopped_at_software_breakpoint = true;
}