x86_32 stackprotector is a maintenance nightmare. Clean it up. This disables stackprotector on x86_32 on GCC 8.1 and on all clang versions. Some clang people are cc'd.
Changes from v1: - Changelog fixes. - Comment fixes (mostly from Sean). - Fix the !SMP case. Andy Lutomirski (2): x86/stackprotector/32: Make the canary into a regular percpu variable x86/entry/32: Remove leftover macros after stackprotector cleanups arch/x86/Kconfig | 7 +- arch/x86/Makefile | 8 ++ arch/x86/entry/entry_32.S | 95 +---------------------- arch/x86/include/asm/processor.h | 15 +--- arch/x86/include/asm/ptrace.h | 5 +- arch/x86/include/asm/segment.h | 30 ++----- arch/x86/include/asm/stackprotector.h | 79 ++++--------------- arch/x86/include/asm/suspend_32.h | 6 +- arch/x86/kernel/asm-offsets_32.c | 5 -- arch/x86/kernel/cpu/common.c | 5 +- arch/x86/kernel/doublefault_32.c | 4 +- arch/x86/kernel/head_32.S | 18 +---- arch/x86/kernel/setup_percpu.c | 1 - arch/x86/kernel/tls.c | 8 +- arch/x86/kvm/svm/svm.c | 10 +-- arch/x86/lib/insn-eval.c | 4 - arch/x86/platform/pvh/head.S | 14 ---- arch/x86/power/cpu.c | 6 +- arch/x86/xen/enlighten_pv.c | 1 - scripts/gcc-x86_32-has-stack-protector.sh | 6 +- 20 files changed, 62 insertions(+), 265 deletions(-) -- 2.29.2
