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* Merge branch 'x86-asmlinkage-for-linus' of ↵Linus Torvalds2013-09-04
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/asmlinkage changes from Ingo Molnar: "As a preparation for Andi Kleen's LTO patchset (link time optimizations using GCC's -flto which build time optimization has steadily increased in quality over the past few years and might eventually be usable for the kernel too) this tree includes a handful of preparatory patches that make function calling convention annotations consistent again: - Mark every function without arguments (or 64bit only) that is used by assembly code with asmlinkage() - Mark every function with parameters or variables that is used by assembly code as __visible. For the vanilla kernel this has documentation, consistency and debuggability advantages, for the time being" * 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asmlinkage: Fix warning in xen asmlinkage change x86, asmlinkage, vdso: Mark vdso variables __visible x86, asmlinkage, power: Make various symbols used by the suspend asm code visible x86, asmlinkage: Make dump_stack visible x86, asmlinkage: Make 64bit checksum functions visible x86, asmlinkage, paravirt: Add __visible/asmlinkage to xen paravirt ops x86, asmlinkage, apm: Make APM data structure used from assembler visible x86, asmlinkage: Make syscall tables visible x86, asmlinkage: Make several variables used from assembler/linker script visible x86, asmlinkage: Make kprobes code visible and fix assembler code x86, asmlinkage: Make various syscalls asmlinkage x86, asmlinkage: Make 32bit/64bit __switch_to visible x86, asmlinkage: Make _*_start_kernel visible x86, asmlinkage: Make all interrupt handlers asmlinkage / __visible x86, asmlinkage: Change dotraplinkage into __visible on 32bit x86: Fix sys_call_table type in asm/syscall.h
| * x86, asmlinkage: Make kprobes code visible and fix assembler codeAndi Kleen2013-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Make all the external assembler template symbols __visible - Move the templates inline assembler code into a top level assembler statement, not inside a function. This avoids it being optimized away or cloned. Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1375740170-7446-8-git-send-email-andi@firstfloor.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | kprobes/x86: Use text_poke_bp() instead of text_poke_smp*()Masami Hiramatsu2013-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use text_poke_bp() for optimizing kprobes instead of text_poke_smp*(). Since the number of kprobes is usually not so large (<100) and text_poke_bp() is much lighter than text_poke_smp() [which uses stop_machine()], this just stops using batch processing. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Reviewed-by: Jiri Kosina <jkosina@suse.cz> Cc: H. Peter Anvin <hpa@linux.intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@akamai.com> Cc: yrl.pp-manager.tt@hitachi.com Cc: Borislav Petkov <bpetkov@suse.de> Link: http://lkml.kernel.org/r/20130718114750.26675.9174.stgit@mhiramat-M0-7522 Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | kprobes/x86: Remove an incorrect comment about int3 in NMI/MCEMasami Hiramatsu2013-07-19
|/ | | | | | | | | | | | | | | | | | | Remove a comment about an int3 issue in NMI/MCE, since commit: 3f3c8b8c4b2a ("x86: Add workaround to NMI iret woes") already fixed that. Keeping this incorrect comment can mislead developers. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Reviewed-by: Jiri Kosina <jkosina@suse.cz> Cc: H. Peter Anvin <hpa@linux.intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@akamai.com> Cc: yrl.pp-manager.tt@hitachi.com Cc: Borislav Petkov <bpetkov@suse.de> Link: http://lkml.kernel.org/r/20130718114747.26675.84110.stgit@mhiramat-M0-7522 Signed-off-by: Ingo Molnar <mingo@kernel.org>
* kprobes/x86: Move kprobes stuff under arch/x86/kernel/kprobes/Masami Hiramatsu2013-01-21
Move arch-dep kprobes stuff under arch/x86/kernel/kprobes. Link: http://lkml.kernel.org/r/20120928081522.3560.75469.stgit@ltc138.sdl.hitachi.co.jp Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> [ fixed whitespace and s/__attribute__((packed))/__packed/ ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>