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Merge tag 'kbuild-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

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Pull Kbuild updates from Masahiro Yamada:

 - Add generic support for built-in boot DTB files

 - Enable TAB cycling for dialog buttons in nconfig

 - Fix issues in streamline_config.pl

 - Refactor Kconfig

 - Add support for Clang's AutoFDO (Automatic Feedback-Directed
   Optimization)

 - Add support for Clang's Propeller, a profile-guided optimization.

 - Change the working directory to the external module directory for M=
   builds

 - Support building external modules in a separate output directory

 - Enable objtool for *.mod.o and additional kernel objects

 - Use lz4 instead of deprecated lz4c

 - Work around a performance issue with "git describe"

 - Refactor modpost

* tag 'kbuild-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (85 commits)
  kbuild: rename .tmp_vmlinux.kallsyms0.syms to .tmp_vmlinux0.syms
  gitignore: Don't ignore 'tags' directory
  kbuild: add dependency from vmlinux to resolve_btfids
  modpost: replace tdb_hash() with hash_str()
  kbuild: deb-pkg: add python3:native to build dependency
  genksyms: reduce indentation in export_symbol()
  modpost: improve error messages in device_id_check()
  modpost: rename alias symbol for MODULE_DEVICE_TABLE()
  modpost: rename variables in handle_moddevtable()
  modpost: move strstarts() to modpost.h
  modpost: convert do_usb_table() to a generic handler
  modpost: convert do_of_table() to a generic handler
  modpost: convert do_pnp_device_entry() to a generic handler
  modpost: convert do_pnp_card_entries() to a generic handler
  modpost: call module_alias_printf() from all do_*_entry() functions
  modpost: pass (struct module *) to do_*_entry() functions
  modpost: remove DEF_FIELD_ADDR_VAR() macro
  modpost: deduplicate MODULE_ALIAS() for all drivers
  modpost: introduce module_alias_printf() helper
  modpost: remove unnecessary check in do_acpi_entry()
  ...
This commit is contained in:
Linus Torvalds
2024-11-30 13:41:50 -08:00
parent 0e287d31b6 e6064da646
commit 6a34dfa15d
73 changed files with 1478 additions and 1017 deletions
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16
scripts/link-vmlinux.sh
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@@ -68,6 +68,10 @@ vmlinux_link()
libs="${KBUILD_VMLINUX_LIBS}"
fi
if is_enabled CONFIG_GENERIC_BUILTIN_DTB; then
objs="${objs} .builtin-dtbs.o"
fi
if is_enabled CONFIG_MODULES; then
objs="${objs} .vmlinux.export.o"
fi
@@ -208,8 +212,8 @@ kallsymso=
strip_debug=
if is_enabled CONFIG_KALLSYMS; then
true > .tmp_vmlinux.kallsyms0.syms
kallsyms .tmp_vmlinux.kallsyms0.syms .tmp_vmlinux0.kallsyms
true > .tmp_vmlinux0.syms
kallsyms .tmp_vmlinux0.syms .tmp_vmlinux0.kallsyms
fi
if is_enabled CONFIG_KALLSYMS || is_enabled CONFIG_DEBUG_INFO_BTF; then
@@ -236,14 +240,14 @@ if is_enabled CONFIG_KALLSYMS; then
# Generate section listing all symbols and add it into vmlinux
# It's a four step process:
# 0) Generate a dummy __kallsyms with empty symbol list.
# 1) Link .tmp_vmlinux.kallsyms1 so it has all symbols and sections,
# 1) Link .tmp_vmlinux1.kallsyms so it has all symbols and sections,
# with a dummy __kallsyms.
# Running kallsyms on that gives us .tmp_kallsyms1.o with
# Running kallsyms on that gives us .tmp_vmlinux1.kallsyms.o with
# the right size
# 2) Link .tmp_vmlinux.kallsyms2 so it now has a __kallsyms section of
# 2) Link .tmp_vmlinux2.kallsyms so it now has a __kallsyms section of
# the right size, but due to the added section, some
# addresses have shifted.
# From here, we generate a correct .tmp_vmlinux.kallsyms2.o
# From here, we generate a correct .tmp_vmlinux2.kallsyms.o
# 3) That link may have expanded the kernel image enough that
# more linker branch stubs / trampolines had to be added, which
# introduces new names, which further expands kallsyms. Do another