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gdb
gdb-python-stacksmash.patch
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File gdb-python-stacksmash.patch of Package gdb
http://sourceware.org/ml/gdb-patches/2014-02/msg00216.html Subject: [patch] [python] Re: GDB crashing on gdb.python/py-linetable.exp --7AUc2qLy4jB3hD7Z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, 07 Feb 2014 11:45:04 +0100, Phil Muldoon wrote: > I've tried most of the morning to reproduce this on Fedora 19, with > -lmcheck and after several thousand test runs I can't reproduce. Due to the requirement of specific stack layout I found it is reproducible for me on Fedora 20 x86_64 with (it sure could be reduced): CFLAGS="-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic" LDFLAGS="-static-libstdc++ -static-libgcc -Wl,-z,relro" ./configure --with-system-readline;make (ulimit -c unlimited;/usr/bin/runtest gdb.python/py-linetable.exp) The fix is obvious, I will check it in. - int py_line; + gdb_py_longest py_line; [...] Regards, Jan --7AUc2qLy4jB3hD7Z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline; filename=1 gdb/ 2014-02-07 Jan Kratochvil <jan.kratochvil@redhat.com> Fix Python stack corruption. * python/py-linetable.c (ltpy_get_pcs_for_line, ltpy_has_line): Use gdb_py_longest. diff --git a/gdb/python/py-linetable.c b/gdb/python/py-linetable.c index e83d46d..8b5362b 100644 --- a/gdb/python/py-linetable.c +++ b/gdb/python/py-linetable.c @@ -168,7 +168,7 @@ static PyObject * ltpy_get_pcs_for_line (PyObject *self, PyObject *args) { struct symtab *symtab; - int py_line; + gdb_py_longest py_line; struct linetable_entry *best_entry = NULL; linetable_entry_object *result; VEC (CORE_ADDR) *pcs = NULL; @@ -200,7 +200,7 @@ static PyObject * ltpy_has_line (PyObject *self, PyObject *args) { struct symtab *symtab; - int py_line; + gdb_py_longest py_line; int index; LTPY_REQUIRE_VALID (self, symtab); --7AUc2qLy4jB3hD7Z--
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