mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-06 21:41:19 +08:00
6545746e3c
This patch fixes a loophole in the -fstack-protector-strong protection. If a function call uses a return slot, the caller needs stack protector instrumentation because the return slot is addressable. gcc/ 2014-05-09 Florian Weimer <fweimer@redhat.com> * cfgexpand.c (stack_protect_decl_p): New function, extracted from expand_used_vars. (stack_protect_return_slot_p): New function. (expand_used_vars): Call stack_protect_decl_p and stack_protect_return_slot_p for -fstack-protector-strong. gcc/testsuite/ 2014-05-09 Florian Weimer <fweimer@redhat.com> * gcc.dg/fstack-protector-strong.c: Add coverage for return slots. * g++.dg/fstack-protector-strong.C: Likewise. * gcc.target/i386/ssp-strong-reg.c: New file. From-SVN: r210275
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.