Merge branch 'js/mingw-open-in-gdb' into maint
Dev support.
* js/mingw-open-in-gdb:
mingw: add a helper function to attach GDB to the current process
diff --git a/compat/mingw.c b/compat/mingw.c
index 402c1ad..b523014 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -13,6 +13,19 @@
static const int delay[] = { 0, 1, 10, 20, 40 };
+void open_in_gdb(void)
+{
+ static struct child_process cp = CHILD_PROCESS_INIT;
+ extern char *_pgmptr;
+
+ argv_array_pushl(&cp.args, "mintty", "gdb", NULL);
+ argv_array_pushf(&cp.args, "--pid=%d", getpid());
+ cp.clean_on_exit = 1;
+ if (start_command(&cp) < 0)
+ die_errno("Could not start gdb");
+ sleep(1);
+}
+
int err_win_to_posix(DWORD winerr)
{
int error = ENOSYS;
diff --git a/compat/mingw.h b/compat/mingw.h
index 714bc1d..e6fe810 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -599,6 +599,16 @@
int main(int argc, const char **argv);
/*
+ * For debugging: if a problem occurs, say, in a Git process that is spawned
+ * from another Git process which in turn is spawned from yet another Git
+ * process, it can be quite daunting to figure out what is going on.
+ *
+ * Call this function to open a new MinTTY (this assumes you are in Git for
+ * Windows' SDK) with a GDB that attaches to the current process right away.
+ */
+extern void open_in_gdb(void);
+
+/*
* Used by Pthread API implementation for Windows
*/
int err_win_to_posix(DWORD winerr);
