Add README_DEVELOPERS to the 'make dist' tarball (since it's mentioned in
README), and add some instructions about attaching GDB to Valgrind itself
within it.
This fixes bug 90138.
MERGE WITH STABLE
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2738 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/README_DEVELOPERS b/README_DEVELOPERS
index 87c0305..a7fa468 100644
--- a/README_DEVELOPERS
+++ b/README_DEVELOPERS
@@ -31,3 +31,19 @@
perl tests/vg_regtest memcheck/tests/badfree.vgtest
perl tests/vg_regtest memcheck/tests/badfree
+
+Debugging Valgrind with GDB
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+To debug Valgrind itself with GDB, start Valgrind like this:
+
+ valgrind --tool=none --wait-for-gdb=yes <prog>
+
+Then start gdb like this in another terminal:
+
+ gdb /usr/lib/valgrind/stage2 <pid>
+
+Where <pid> is the pid valgrind printed. Then set whatever breakpoints
+you want and do this in gdb:
+
+ jump *$eip
+