This patch set refactors modpost first to make it easier to add new code. My goals: - Refactors EXPORT_SYMBOL, <linux/export.h> and <asm/export.h>. You can still put EXPORT_SYMBOL() in *.S file, very close to the definition, but you do not need to care about whether it is a function or a data. This removes EXPORT_DATA_SYMBOL(). - Re-implement TRIM_UNUSED_KSYMS in one-pass. This makes the building faster. - Move the static EXPORT_SYMBOL check to modpost. This also makes the building faster. This patch set is applicable to linux-next 20230608. V7 fixed build errors reported for Xtensa. Previous version v7: https://lore.kernel.org/linux-kbuild/20230608142428.256985-1-masahiroy@xxxxxxxxxx/T/#mbaddcee18c9a8cf0a9b1f3fc562d09526cb69540 v6: https://lore.kernel.org/linux-kbuild/CAK7LNARjzGnj+sYX=_5yQ+8qoOQ2KB5N-_Ye53Ru3=XicezTYw@xxxxxxxxxxxxxx/T/#t v5: https://lore.kernel.org/linux-kbuild/CAK7LNARBiOywrMLbR=9N35sk19U0QM3xcPy7d1WqV-eyb4W23w@xxxxxxxxxxxxxx/T/#t v4: https://lore.kernel.org/linux-kbuild/CAK7LNASDzy9RERN6+q6WgR4ROYZQue=SBqgbcoYuVePByHtk6Q@xxxxxxxxxxxxxx/T/#t v3: https://lore.kernel.org/all/20220928063947.299333-1-masahiroy@xxxxxxxxxx/ Changes in v8: - Fix the definition of ____EXPORT_SYMBOL() to v7. It seems to cause a regression for xtensa. (reported by 0day bot) Changes in v7: - New patch - Fix sparse warning reported by 0day bot https://lore.kernel.org/linux-kbuild/202305280830.Rj5ltc9M-lkp@xxxxxxxxx/ - Remove *.usyms - New patch Changes in v6: - Fix build error on UML - Make the symbol name in the warning more precise Changes in v5: - Fix build error on ARM - Clean up more Changes in v4: - Version 3 did not work if a same name symbol exists in a different compilation unit Fix it. Changes in v3: - Move struct kernel_symbol to kernel/module/internal.h Changes in v2: - Use KSYMTAB_FUNC and KSYMTAB_DATA for functions and data, respectively This distinction is needed for ia64. Masahiro Yamada (11): Revert "[PATCH] uml: export symbols added by GCC hardened" modpost: pass struct module pointer to check_section_mismatch() kbuild: generate KSYMTAB entries by modpost ia64,export.h: replace EXPORT_DATA_SYMBOL* with EXPORT_SYMBOL* modpost: check static EXPORT_SYMBOL* by modpost again modpost: squash sym_update_namespace() into sym_add_exported() modpost: use null string instead of NULL pointer for default namespace kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion modpost: merge two similar section mismatch warnings modpost: show offset from symbol for section mismatch warnings linux/export.h: rename 'sec' argument to 'license' .gitignore | 2 - Makefile | 22 +-- arch/ia64/include/asm/Kbuild | 1 + arch/ia64/include/asm/export.h | 3 - arch/ia64/kernel/head.S | 2 +- arch/ia64/kernel/ivt.S | 2 +- arch/um/os-Linux/user_syms.c | 7 - include/asm-generic/export.h | 83 +---------- include/asm-generic/vmlinux.lds.h | 1 + include/linux/export-internal.h | 49 +++++++ include/linux/export.h | 126 ++++------------ include/linux/pm.h | 14 +- kernel/module/internal.h | 12 ++ scripts/Makefile.build | 27 +--- scripts/Makefile.modpost | 7 + scripts/adjust_autoksyms.sh | 73 ---------- scripts/basic/fixdep.c | 3 +- scripts/check-local-export | 70 --------- scripts/gen_autoksyms.sh | 62 -------- scripts/gen_ksymdeps.sh | 30 ---- scripts/mod/modpost.c | 233 +++++++++++++++++++----------- scripts/mod/modpost.h | 1 + scripts/remove-stale-files | 4 + 23 files changed, 268 insertions(+), 566 deletions(-) delete mode 100644 arch/ia64/include/asm/export.h delete mode 100755 scripts/adjust_autoksyms.sh delete mode 100755 scripts/check-local-export delete mode 100755 scripts/gen_autoksyms.sh delete mode 100755 scripts/gen_ksymdeps.sh -- 2.39.2
