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Re: Building GDB 7.3.92 with MinGW


On 2012-1-11 5:23, Doug Evans wrote:
For one, remembering to pass -data-directory is a pain.

This parameter does not work correctly under MinGW in the case that I would like gdb to automatically run the python script when it startup.


Normally, my gdb is put in MinGW/bin, and the gdb's own python script is under:
MinGW\share\gdb\python\gdb\*.py

I need to hard-code the code in gdb/main.c to set the data-directory value. (Because gdb is build from MSYS+MinGW, but it run normally on Windows shell without MSYS)

Here are some hard-code modify to the main.c file, if you do not change this, there is no way to load gdb's own python scripts.

diff --git a/gdb/main.c b/gdb/main.c
index 8b45c25..46b11a8 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -42,6 +42,10 @@
#include "python/python.h"
#include "objfiles.h"
+#ifdef _WIN32
+extern int get_app_fullpath(char *location, int length);
+#endif
+
/* The selected interpreter. This will be used as a set command
variable, so it should always be malloc'ed - since
do_setshow_command will free it. */
@@ -355,8 +359,27 @@ captured_main (void *data)
debug_file_directory = relocate_gdb_directory (DEBUGDIR,
DEBUGDIR_RELOCATABLE);
+
+#ifdef _WIN32
+ {
+ char location[500];
+ int len= get_app_fullpath(location, sizeof (location));
+ if (len == 0 || len > 500 - 1)
+ gdb_datadir = relocate_gdb_directory (GDB_DATADIR,GDB_DATADIR_RELOCATABLE);
+ else
+ {
+ char *p_slash =strrchr(location,'\\');
+ *p_slash = '\000';
+ p_slash =strrchr(location,'\\'); /* remove the bin folder*/
+ *p_slash = '\000';
+ strcat(location,"\\share\\gdb");
+ gdb_datadir = xstrdup (location);
+ }
+ }
+#else
gdb_datadir = relocate_gdb_directory (GDB_DATADIR,
- GDB_DATADIR_RELOCATABLE);
+ GDB_DATADIR_RELOCATABLE);
+#endif
#ifdef WITH_PYTHON_PATH
{


If I remember correctly, I have post it some months ago.

asmwarrior
ollydbg from codeblocks' forum


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