Messages in this thread | | | From | Denys Vlasenko <> | Subject | [PATCH 0/6 v2] x86: entry_64.S: always allocate complete "struct pt_regs" | Date | Mon, 4 Aug 2014 15:19:40 +0200 |
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Version 2 of the patchset.
Changes since v1 (mainly in patch 4/6): = Reverted changes to "partial pt_regs saving" on interrupt path. = Folded PARTIAL_FRAME macro into DEFAULT_FRAME. Patch v1 had a bug (incorrect dwarf debug info generation). = Corrected more comments. = Added use of SAVE_* macros to error_entry and save_paranoid. = Added another cleanup rename patch.
TODO: = error_entry and save_paranoid have different CFI decorations. At least one of them is likely to be wrong... = Move save_paranoid closer to the callers. = "idtentry" macro uses a subroutine to factor out a largish common code block. "interrupt" macro inlines a similar block every time (~20 instances). Maybe factor it out?
CC: Oleg Nesterov <oleg@redhat.com> CC: "H. Peter Anvin" <hpa@zytor.com> CC: Andy Lutomirski <luto@amacapital.net> CC: Frederic Weisbecker <fweisbec@gmail.com> CC: X86 ML <x86@kernel.org> CC: Alexei Starovoitov <ast@plumgrid.com> CC: Will Drewry <wad@chromium.org> CC: Kees Cook <keescook@chromium.org> CC: linux-kernel@vger.kernel.org
Denys Vlasenko (6): x86: entry_64.S: delete unused code x86: open-code register save/restore in trace_hardirqs thunks x86: entry_64.S: fold SAVE_ARGS_IRQ macro into its sole user x86: entry_64.S: always allocate complete "struct pt_regs" x86: mass removal of ARGOFFSET x86: rename some macros and labels, no code changes
arch/x86/ia32/ia32entry.S | 175 +++++++++-------- arch/x86/include/asm/calling.h | 216 ++++++++++---------- arch/x86/include/asm/irqflags.h | 4 +- arch/x86/include/asm/ptrace.h | 13 +- arch/x86/include/uapi/asm/ptrace-abi.h | 16 +- arch/x86/include/uapi/asm/ptrace.h | 13 +- arch/x86/kernel/entry_64.S | 349 +++++++++++++-------------------- arch/x86/kernel/preempt.S | 16 +- arch/x86/lib/thunk_64.S | 29 ++- 9 files changed, 395 insertions(+), 436 deletions(-)
-- 1.8.1.4
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