linux/scripts/module.lds.S
Linus Torvalds b5361254c9 Modules changes for v6.13-rc1
Highlights for this merge window:
 
   * The whole caching of module code into huge pages by Mike Rapoport is going
     in through Andrew Morton's tree due to some other code dependencies. That's
     really the biggest highlight for Linux kernel modules in this release. With
     it we share huge pages for modules, starting off with x86. Expect to see that
     soon through Andrew!
 
   * Helge Deller addressed some lingering low hanging fruit alignment
     enhancements by. It is worth pointing out that from his old patch series
     I dropped his vmlinux.lds.h change at Masahiro's request as he would
     prefer this to be specified in asm code [0].
 
     [0] https://lore.kernel.org/all/20240129192644.3359978-5-mcgrof@kernel.org/T/#m9efef5e700fbecd28b7afb462c15eed8ba78ef5a
 
   * Matthew Maurer and Sami Tolvanen have been tag teaming to help
     get us closer to a modversions for Rust. In this cycle we take in
     quite a lot of the refactoring for ELF validation. I expect modversions
     for Rust will be merged by v6.14 as that code is mostly ready now.
 
   * Adds a new modules selftests: kallsyms which helps us tests find_symbol()
     and the limits of kallsyms on Linux today.
 
   * We have a realtime mailing list to kernel-ci testing for modules now
     which relies and combines patchwork, kpd and kdevops:
 
     - https://patchwork.kernel.org/project/linux-modules/list/
     - https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/README.md
     - https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/kernel-ci-kpd.md
     - https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/linux-modules-kdevops-ci.md
 
     If you want to help avoid Linux kernel modules regressions, now its simple,
     just add a new Linux modules sefltests under tools/testing/selftests/module/
     That is it. All new selftests will be used and leveraged automatically by
     the CI.
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Merge tag 'modules-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux

Pull modules updates from Luis Chamberlain:

 - The whole caching of module code into huge pages by Mike Rapoport is
   going in through Andrew Morton's tree due to some other code
   dependencies. That's really the biggest highlight for Linux kernel
   modules in this release. With it we share huge pages for modules,
   starting off with x86. Expect to see that soon through Andrew!

 - Helge Deller addressed some lingering low hanging fruit alignment
   enhancements by. It is worth pointing out that from his old patch
   series I dropped his vmlinux.lds.h change at Masahiro's request as he
   would prefer this to be specified in asm code [0].

    [0] https://lore.kernel.org/all/20240129192644.3359978-5-mcgrof@kernel.org/T/#m9efef5e700fbecd28b7afb462c15eed8ba78ef5a

 - Matthew Maurer and Sami Tolvanen have been tag teaming to help get us
   closer to a modversions for Rust. In this cycle we take in quite a
   lot of the refactoring for ELF validation. I expect modversions for
   Rust will be merged by v6.14 as that code is mostly ready now.

 - Adds a new modules selftests: kallsyms which helps us tests
   find_symbol() and the limits of kallsyms on Linux today.

 - We have a realtime mailing list to kernel-ci testing for modules now
   which relies and combines patchwork, kpd and kdevops:

     https://patchwork.kernel.org/project/linux-modules/list/
     https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/README.md
     https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/kernel-ci-kpd.md
     https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/linux-modules-kdevops-ci.md

   If you want to help avoid Linux kernel modules regressions, now its
   simple, just add a new Linux modules sefltests under
   tools/testing/selftests/module/ That is it. All new selftests will be
   used and leveraged automatically by the CI.

* tag 'modules-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
  tests/module/gen_test_kallsyms.sh: use 0 value for variables
  scripts: Remove export_report.pl
  selftests: kallsyms: add MODULE_DESCRIPTION
  selftests: add new kallsyms selftests
  module: Reformat struct for code style
  module: Additional validation in elf_validity_cache_strtab
  module: Factor out elf_validity_cache_strtab
  module: Group section index calculations together
  module: Factor out elf_validity_cache_index_str
  module: Factor out elf_validity_cache_index_sym
  module: Factor out elf_validity_cache_index_mod
  module: Factor out elf_validity_cache_index_info
  module: Factor out elf_validity_cache_secstrings
  module: Factor out elf_validity_cache_sechdrs
  module: Factor out elf_validity_ehdr
  module: Take const arg in validate_section_offset
  modules: Add missing entry for __ex_table
  modules: Ensure 64-bit alignment on __ksymtab_* sections
2024-11-27 10:20:50 -08:00

71 lines
1.7 KiB
ArmAsm

/*
* Common module linker script, always used when linking a module.
* Archs are free to supply their own linker scripts. ld will
* combine them automatically.
*/
#ifdef CONFIG_UNWIND_TABLES
#define DISCARD_EH_FRAME
#else
#define DISCARD_EH_FRAME *(.eh_frame)
#endif
#include <asm-generic/codetag.lds.h>
SECTIONS {
/DISCARD/ : {
*(.discard)
*(.discard.*)
*(.export_symbol)
}
__ksymtab 0 : ALIGN(8) { *(SORT(___ksymtab+*)) }
__ksymtab_gpl 0 : ALIGN(8) { *(SORT(___ksymtab_gpl+*)) }
__kcrctab 0 : ALIGN(4) { *(SORT(___kcrctab+*)) }
__kcrctab_gpl 0 : ALIGN(4) { *(SORT(___kcrctab_gpl+*)) }
.ctors 0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) }
.init_array 0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
.altinstructions 0 : ALIGN(8) { KEEP(*(.altinstructions)) }
__bug_table 0 : ALIGN(8) { KEEP(*(__bug_table)) }
__jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) }
__ex_table 0 : ALIGN(4) { KEEP(*(__ex_table)) }
__patchable_function_entries : { *(__patchable_function_entries) }
#ifdef CONFIG_ARCH_USES_CFI_TRAPS
__kcfi_traps : { KEEP(*(.kcfi_traps)) }
#endif
#ifdef CONFIG_LTO_CLANG
/*
* With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
* -ffunction-sections, which increases the size of the final module.
* Merge the split sections in the final binary.
*/
.bss : {
*(.bss .bss.[0-9a-zA-Z_]*)
*(.bss..L*)
}
.data : {
*(.data .data.[0-9a-zA-Z_]*)
*(.data..L*)
MOD_CODETAG_SECTIONS()
}
.rodata : {
*(.rodata .rodata.[0-9a-zA-Z_]*)
*(.rodata..L*)
}
#else
.data : {
MOD_CODETAG_SECTIONS()
}
#endif
MOD_SEPARATE_CODETAG_SECTIONS()
}
/* bring in arch-specific sections */
#include <asm/module.lds.h>