kernel.git/arch/arm/kernel/vmlinux.lds.h, branch linux-4.19.y

ARM: Do not use NOCROSSREFS directive with ld.lld

2022-03-11T09:15:12Z

commit 36168e387fa7d0f1fe0cd5cf76c8cea7aee714fa upstream. ld.lld does not support the NOCROSSREFS directive at the moment, which breaks the build after commit b9baf5c8c5c3 ("ARM: Spectre-BHB workaround"): ld.lld: error: ./arch/arm/kernel/vmlinux.lds:34: AT expected, but got NOCROSSREFS Support for this directive will eventually be implemented, at which point a version check can be added. To avoid breaking the build in the meantime, just define NOCROSSREFS to nothing when using ld.lld, with a link to the issue for tracking. Cc: stable@vger.kernel.org Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround") Link: https://github.com/ClangBuiltLinux/linux/issues/1609 Signed-off-by: Nathan Chancellor Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

ARM: Spectre-BHB workaround

2022-03-11T09:15:12Z

commit b9baf5c8c5c356757f4f9d8180b5e9d234065bc3 upstream. Workaround the Spectre BHB issues for Cortex-A15, Cortex-A57, Cortex-A72, Cortex-A73 and Cortex-A75. We also include Brahma B15 as well to be safe, which is affected by Spectre V2 in the same ways as Cortex-A15. Reviewed-by: Catalin Marinas Signed-off-by: Russell King (Oracle) [changes due to lack of SYSTEM_FREEING_INITMEM - gregkh] Signed-off-by: Greg Kroah-Hartman

ARM: use LOADADDR() to get load address of sections

2022-03-11T09:15:12Z

commit 8d9d651ff2270a632e9dc497b142db31e8911315 upstream. Use the linker's LOADADDR() macro to get the load address of the sections, and provide a macro to set the start and end symbols. Acked-by: Catalin Marinas Signed-off-by: Russell King (Oracle) Signed-off-by: Greg Kroah-Hartman

vmlinux.lds.h: Fix incomplete .text.exit discards

2018-10-11T21:54:58Z

Enabling CONFIG_GCOV_PROFILE_ALL=y causes linker errors on ARM: `.text.exit' referenced in section `.ARM.exidx.text.exit': defined in discarded section `.text.exit' `.text.exit' referenced in section `.fini_array.00100': defined in discarded section `.text.exit' And related errors on NDS32: `.text.exit' referenced in section `.dtors.65435': defined in discarded section `.text.exit' The gcov compiler flags cause certain compiler versions to generate additional destructor-related sections that are not yet handled by the linker script, resulting in references between discarded and non-discarded sections. Since destructors are not used in the Linux kernel, fix this by discarding these additional sections. Reported-by: Arnd Bergmann Tested-by: Arnd Bergmann Acked-by: Arnd Bergmann Reported-by: Greentime Hu Tested-by: Masami Hiramatsu Signed-off-by: Peter Oberparleiter Signed-off-by: Stephen Rothwell

ARM: 8774/1: remove no-op macro VMLINUX_SYMBOL()

2018-05-19T10:53:46Z

VMLINUX_SYMBOL() is no-op unless CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX is defined. It has ever been selected only by BLACKFIN and METAG. VMLINUX_SYMBOL() is unneeded for ARM-specific code. Signed-off-by: Masahiro Yamada Signed-off-by: Russell King

ARM: simplify and fix linker script for TCM

2018-03-10T01:20:43Z

Let's put the TCM stuff in the __init section directly. No need for a separately freed memory area. Remove redundant linker sections, as well as comments that were more confusing than no comments at all. Finally make it XIP compatible by using LOAD_OFFSET in the section LMA specification. Signed-off-by: Nicolas Pitre Tested-by: Chris Brandt

ARM: linker script: factor out TCM bits

2018-03-10T01:20:22Z

This is a plain move with identical results, and therefore still broken in the XIP case. Signed-off-by: Nicolas Pitre Tested-by: Chris Brandt

ARM: linker script: factor out vectors and stubs

2018-03-10T01:20:04Z

Signed-off-by: Nicolas Pitre Tested-by: Chris Brandt

ARM: linker script: factor out unwinding table sections

2018-03-10T01:19:55Z

Signed-off-by: Nicolas Pitre Tested-by: Chris Brandt

ARM: linker script: factor out stuff for the .text section

2018-03-10T01:19:45Z

Move common entries to vmlinux.lds.h as ARM_TEXT. Signed-off-by: Nicolas Pitre Tested-by: Chris Brandt