kernel/linux.git/arch/powerpc/tools, branch linux-5.9.y

powerpc/64s: allow for clang's objdump differences

2020-07-26T14:01:29+00:00

Clang's objdump emits slightly different output from GNU's objdump, causing a list of warnings to be emitted during relocatable builds. E.g., clang's objdump emits this: c000000000000004: 2c 00 00 48 b 0xc000000000000030 ... c000000000005c6c: 10 00 82 40 bf 2, 0xc000000000005c7c while GNU objdump emits: c000000000000004: 2c 00 00 48 b c000000000000030 <__start+0x30> ... c000000000005c6c: 10 00 82 40 bne c000000000005c7c Adjust llvm-objdump's output to remove the extraneous '0x' and convert 'bf' and 'bt' to 'bne' and 'beq' resp. to more closely match GNU objdump's output. Note that clang's objdump doesn't yet output the relocation symbols on PPC. Signed-off-by: Bill Wendling Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/191c67db31264b69cf6b566fd69851beb3dd0abb.1595630874.git.morbo@google.com

powerpc/head_check: Avoid broken pipe

2020-05-18T14:10:35+00:00

Remove the '-m4' option to grep to allow grep to process all of nm's output. This avoids the nm warning: nm terminated with signal 13 [Broken pipe] Signed-off-by: Geoff Levand Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/872b6c84a4250ff140e476c62cabe9e56a02b6c2.1589049250.git.geoff@infradead.org

powerpc/head_check: Automatic verbosity

2020-05-18T14:10:35+00:00

To aid debugging build problems turn on shell tracing for the head_check script when the build is verbose. Signed-off-by: Geoff Levand Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1ae1aed811ba6760af2e46d331285dd6a4de5b80.1589049250.git.geoff@infradead.org

powerpc: Do not consider weak unresolved symbol relocations as bad

2020-01-31T09:17:22+00:00

Commit 8580ac9404f6 ("bpf: Process in-kernel BTF") introduced two weak symbols that may be unresolved at link time which result in an absolute relocation to 0. relocs_check.sh emits the following warning: "WARNING: 2 bad relocations c000000001a41478 R_PPC64_ADDR64 _binary__btf_vmlinux_bin_start c000000001a41480 R_PPC64_ADDR64 _binary__btf_vmlinux_bin_end" whereas those relocations are legitimate even for a relocatable kernel compiled with -pie option. relocs_check.sh already excluded some weak unresolved symbols explicitly: remove those hardcoded symbols and add some logic that parses the symbols using nm, retrieves all the weak unresolved symbols and excludes those from the list of the potential bad relocations. Reported-by: Stephen Rothwell Signed-off-by: Alexandre Ghiti Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200118170335.21440-1-alex@ghiti.fr

powerpc/tools: Don't quote $objdump in scripts

2019-10-30T11:55:12+00:00

Some of our scripts are passed $objdump and then call it as "$objdump". This doesn't work if it contains spaces because we're using ccache, for example you get errors such as: ./arch/powerpc/tools/relocs_check.sh: line 48: ccache ppc64le-objdump: No such file or directory ./arch/powerpc/tools/unrel_branch_check.sh: line 26: ccache ppc64le-objdump: No such file or directory Fix it by not quoting the string when we expand it, allowing the shell to do the right thing for us. Fixes: a71aa05e1416 ("powerpc: Convert relocs_check to a shell script using grep") Fixes: 4ea80652dc75 ("powerpc/64s: Tool to flag direct branches from unrelocated interrupt vectors") Signed-off-by: Michael Ellerman Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20191024004730.32135-1-mpe@ellerman.id.au

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc/tools/checkpatch: Ignore DT_SPLIT_BINDING_PATCH

2018-12-04T08:45:01+00:00

From what I've seen, every time this warning comes up it's bogus, so let's ignore it. Signed-off-by: Russell Currey Reviewed-by: Andrew Donnellan Signed-off-by: Michael Ellerman

powerpc: Add a checkpatch wrapper with our preferred settings

2018-08-07T11:49:25+00:00

This makes it easy to run checkpatch with settings that I like. Usage is eg: $ ./arch/powerpc/tools/checkpatch.sh -g origin/master.. To check all commits since origin/master. Signed-off-by: Michael Ellerman Reviewed-by: Russell Currey

powerpc/kbuild: move -mprofile-kernel check to Kconfig

2018-06-11T00:16:29+00:00

This eliminates the workaround that requires disabling -mprofile-kernel by default in Kconfig. Signed-off-by: Nicholas Piggin Acked-by: Michael Ellerman Signed-off-by: Masahiro Yamada

powerpc/kbuild: Use flags variables rather than overriding LD/CC/AS

2018-06-01T13:08:09+00:00

The powerpc toolchain can compile combinations of 32/64 bit and big/little endian, so it's convenient to consider, e.g., `CC -m64 -mbig-endian` To be the C compiler for the purpose of invoking it to build target artifacts. So overriding the CC variable to include these flags works for this purpose. Unfortunately that is not compatible with the way the proposed new Kconfig macro language will work. After previous patches in this series, these flags can be carefully passed in using flags instead. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman