66 lines
1.9 KiB
Diff
66 lines
1.9 KiB
Diff
http://sourceware.org/ml/gdb-patches/2014-02/msg00216.html
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Subject: [patch] [python] Re: GDB crashing on gdb.python/py-linetable.exp
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--7AUc2qLy4jB3hD7Z
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline
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On Fri, 07 Feb 2014 11:45:04 +0100, Phil Muldoon wrote:
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> I've tried most of the morning to reproduce this on Fedora 19, with
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> -lmcheck and after several thousand test runs I can't reproduce.
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Due to the requirement of specific stack layout I found it is reproducible for
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me on Fedora 20 x86_64 with (it sure could be reduced):
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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
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(ulimit -c unlimited;/usr/bin/runtest gdb.python/py-linetable.exp)
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The fix is obvious, I will check it in.
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- int py_line;
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+ gdb_py_longest py_line;
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[...]
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Regards,
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Jan
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--7AUc2qLy4jB3hD7Z
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline; filename=1
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gdb/
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2014-02-07 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix Python stack corruption.
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* python/py-linetable.c (ltpy_get_pcs_for_line, ltpy_has_line): Use
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gdb_py_longest.
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diff --git a/gdb/python/py-linetable.c b/gdb/python/py-linetable.c
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index e83d46d..8b5362b 100644
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--- a/gdb/python/py-linetable.c
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+++ b/gdb/python/py-linetable.c
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@@ -168,7 +168,7 @@ static PyObject *
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ltpy_get_pcs_for_line (PyObject *self, PyObject *args)
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{
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struct symtab *symtab;
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- int py_line;
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+ gdb_py_longest py_line;
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struct linetable_entry *best_entry = NULL;
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linetable_entry_object *result;
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VEC (CORE_ADDR) *pcs = NULL;
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@@ -200,7 +200,7 @@ static PyObject *
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ltpy_has_line (PyObject *self, PyObject *args)
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{
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struct symtab *symtab;
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- int py_line;
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+ gdb_py_longest py_line;
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int index;
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LTPY_REQUIRE_VALID (self, symtab);
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--7AUc2qLy4jB3hD7Z--
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