kernel.git/arch/arc/kernel/unwind.c, branch linux-4.19.y

ARC: hide unused function unw_hdr_alloc

2019-07-21T07:03:14Z

commit fd5de2721ea7d16e2b16c4049ac49f229551b290 upstream. As kernelci.org reports, this function is not used in vdk_hs38_defconfig: arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] Fixes: bc79c9a72165 ("ARC: dw2 unwind: Reinstante unwinding out of modules") Link: https://kernelci.org/build/id/5d1cae3f59b514300340c132/logs/ Cc: stable@vger.kernel.org Signed-off-by: Arnd Bergmann Signed-off-by: Vineet Gupta Signed-off-by: Greg Kroah-Hartman

treewide/trivial: Remove ';;$' typo noise

2018-02-22T09:59:33Z

On lkml suggestions were made to split up such trivial typo fixes into per subsystem patches: --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -439,7 +439,7 @@ setup_uga32(void **uga_handle, unsigned long size, u32 *width, u32 *height) struct efi_uga_draw_protocol *uga = NULL, *first_uga; efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID; unsigned long nr_ugas; - u32 *handles = (u32 *)uga_handle;; + u32 *handles = (u32 *)uga_handle; efi_status_t status = EFI_INVALID_PARAMETER; int i; This patch is the result of the following script: $ sed -i 's/;;$/;/g' $(git grep -E ';;$' | grep "\.[ch]:" | grep -vwE 'for|ia64' | cut -d: -f1 | sort | uniq) ... followed by manual review to make sure it's all good. Splitting this up is just crazy talk, let's get over with this and just do it. Reported-by: Pavel Machek Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

scripts/spelling.txt: add regsiter -> register spelling mistake

2017-05-09T00:15:13Z

This typo is quite common. Fix it and add it to the spelling file so that checkpatch catches it earlier. Link: http://lkml.kernel.org/r/20170317011131.6881-2-sboyd@codeaurora.org Signed-off-by: Stephen Boyd Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

scripts/spelling.txt: add "aligment" pattern and fix typo instances

2017-02-28T02:43:46Z

Fix typos and add the following to the scripts/spelling.txt: aligment||alignment I did not touch the "N_BYTE_ALIGMENT" macro in drivers/net/wireless/realtek/rtlwifi/wifi.h to avoid unpredictable impact. I fixed "_aligment_handler" in arch/openrisc/kernel/entry.S because it is surrounded by #if 0 ... #endif. It is surely safe and I confirmed "_alignment_handler" is correct. I also fixed the "controler" I found in the same hunk in arch/openrisc/kernel/head.S. Link: http://lkml.kernel.org/r/1481573103-11329-8-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ARC: dw2 unwind: switch to .eh_frame based unwinding

2016-09-30T21:48:20Z

So finally after almost 8 years of dealing with .debug_frame, we are finally switching to .eh_frame. The reason being stripped kernel binaries had non-functional unwinder as .debug_frame was gone. Also, in general .eh_frame seems more common way of doing unwinding. This also folds a revert of f52e126cc747 ("ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame)") to ensure that we start getting .eh_frame Reported-by: Daniel Mentz Signed-off-by: Vineet Gupta

ARC: dw2 unwind: factor CIE specifics for .eh_frame/.debug_frame

2016-09-30T21:48:19Z

This paves way for switching to .eh_frame based unwindiing Signed-off-by: Vineet Gupta

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching

2016-01-15T00:38:02Z

Pull livepatching updates from Jiri Kosina: - RO/NX attribute fixes for patch module relocations from Josh Poimboeuf. As part of this effort, module.c has been cleaned up as well and livepatching is piggy-backing on this cleanup. Rusty is OK with this whole lot going through livepatching tree. - symbol disambiguation support from Chris J Arges. That series is also Reviewed-by: Miroslav Benes but this came in only after I've alredy pushed out. Didn't want to rebase because of that, hence I am mentioning it here. - symbol lookup fix from Miroslav Benes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching: livepatch: Cleanup module page permission changes module: keep percpu symbols in module's symtab module: clean up RO/NX handling. module: use a structure to encapsulate layout. gcov: use within_module() helper. module: Use the same logic for setting and unsetting RO/NX livepatch: function,sympos scheme in livepatch sysfs directory livepatch: add sympos as disambiguator field to klp_reloc livepatch: add old_sympos as disambiguator field to klp_func

ARC: dw2 unwind: Catch Dwarf SNAFUs early

2015-12-21T08:31:49Z

Instead of seeing empty stack traces, let kernel fail early so dwarf issues can be fixed sooner Signed-off-by: Vineet Gupta

ARC: dw2 unwind: Don't bail for CIE.version != 1

2015-12-21T08:31:25Z

The rudimentary CIE.version == 3 handling is already present in code (for return address register specification) Signed-off-by: Vineet Gupta

Revert "ARC: dw2 unwind: Ignore CIE version !=1 gracefully instead of bailing"

2015-12-21T07:59:44Z

Blingly ignoring CIE.version != 1 was a bad idea. It still leaves "desirability" when running perf with callgraphing where libgcc symbols might show in hotspot. More importantly, basic CIE.version == 3 support already exists in code: | | retAddrReg = state.version <= 1 ? *ptr++ : get_uleb128(&ptr, end); | Next commit with simply add continue-not-bail for CIE.version != 1 This reverts commit 323f41f9e7d0cb5b1d1586aded6682855f1e646d.