[committed][gdbserver] Fix Wlto-type-mismatch for debug_agent

[Tom de Vries <tdevries@suse.de>]

Hi,

When building gdb including gdbserver with CFLAGS/CXXFLAGS -O2 -g -flto=auto,
I run into:
...
src/gdbserver/../gdbsupport/agent.h:47:13: error: type of 'debug_agent' \
  does not match original declaration [-Werror=lto-type-mismatch]
 extern bool debug_agent;
             ^
src/gdbserver/ax.cc:28:5: note: type 'int' should match type 'bool'
 int debug_agent = 0;
     ^
src/gdbserver/ax.cc:28:5: note: 'debug_agent' was previously declared here
src/gdbserver/ax.cc:28:5: note: code may be misoptimized unless \
  -fno-strict-aliasing is used
...

Fix this by changing the type of debug_agent in ax.cc from int to bool.

Tested on x86_64-linux.

Committed to trunk.

Thanks,
- Tom

[gdbserver] Fix Wlto-type-mismatch for debug_agent

---
 gdbserver/ax.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdbserver/ax.cc b/gdbserver/ax.cc
index 213db410a0..42d28128fa 100644
--- a/gdbserver/ax.cc
+++ b/gdbserver/ax.cc
@@ -25,7 +25,7 @@
 static void ax_vdebug (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
 
 #ifdef IN_PROCESS_AGENT
-int debug_agent = 0;
+bool debug_agent = 0;
 #endif
 
 static void