From: Masahiro Yamada <masahiroy@kernel.org> To: linux-kbuild@vger.kernel.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>, Ard Biesheuvel <ardb@kernel.org>, Nicolas Pitre <npitre@baylibre.com>, Masahiro Yamada <masahiroy@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Luis Chamberlain <mcgrof@kernel.org>, Michal Marek <michal.lkml@markovi.net>, Nathan Chancellor <nathan@kernel.org>, Nick Desaulniers <ndesaulniers@google.com>, Tom Rix <trix@redhat.com>, linux-modules@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH v3 0/8] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TRIM_UNUSED_KSYMS Date: Wed, 28 Sep 2022 15:39:39 +0900 [thread overview] Message-ID: <20220928063947.299333-1-masahiroy@kernel.org> (raw) This patch set refactors EXPORT_SYMBOL, <linux/export.h> and <asm/export.h>. Also, re-implement TRIM_UNUSED_KSYMS in one-pass. 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. Remove EXPORT_DATA_SYMBOL(). In v1, I broke ia64 because of missing distinction between functions and data. V2 handles it correctly. If the exported symbols is a function, KSYMTAB_FUNC is output. Otherwise, KSYMTAB_DATA is output. Changes in v3: - Move to the head of the series - New patch - Move struct kernel_symbol to kernel/module/internal.h - Some cleanups Changes in v2: - New patch - Use KSYMTAB_FUNC and KSYMTAB_DATA for functions and data, respectively This distinction is needed for ia64. - New patch - New patch Masahiro Yamada (8): kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o kbuild: rebuild .vmlinux.export.o when its prerequisite is updated kbuild: generate KSYMTAB entries by modpost ia64,export.h: replace EXPORT_DATA_SYMBOL* with EXPORT_SYMBOL* modpost: squash sym_update_namespace() into sym_add_exported() modpost: use null string instead of NULL pointer for default namespace modpost: squash report_sec_mismatch() and remove enum mismatch kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion .gitignore | 1 - Makefile | 37 ++---- 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 +- include/asm-generic/export.h | 83 +----------- include/linux/export-internal.h | 49 +++++++ include/linux/export.h | 114 +++------------- kernel/module/internal.h | 12 ++ scripts/Makefile.build | 15 +-- scripts/Makefile.modpost | 8 +- scripts/Makefile.vmlinux | 21 ++- scripts/Makefile.vmlinux_o | 26 +++- scripts/adjust_autoksyms.sh | 73 ---------- scripts/basic/fixdep.c | 3 +- scripts/check-local-export | 4 +- scripts/gen_autoksyms.sh | 62 --------- scripts/gen_ksymdeps.sh | 30 ----- scripts/link-vmlinux.sh | 12 -- scripts/mod/modpost.c | 228 ++++++++++++++++---------------- scripts/mod/modpost.h | 1 + scripts/remove-stale-files | 2 + 23 files changed, 270 insertions(+), 519 deletions(-) delete mode 100644 arch/ia64/include/asm/export.h delete mode 100755 scripts/adjust_autoksyms.sh delete mode 100755 scripts/gen_autoksyms.sh delete mode 100755 scripts/gen_ksymdeps.sh -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Masahiro Yamada <masahiroy@kernel.org> To: linux-kbuild@vger.kernel.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>, Ard Biesheuvel <ardb@kernel.org>, Nicolas Pitre <npitre@baylibre.com>, Masahiro Yamada <masahiroy@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Luis Chamberlain <mcgrof@kernel.org>, Michal Marek <michal.lkml@markovi.net>, Nathan Chancellor <nathan@kernel.org>, Nick Desaulniers <ndesaulniers@google.com>, Tom Rix <trix@redhat.com>, linux-modules@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH v3 0/8] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TRIM_U Date: Wed, 28 Sep 2022 06:39:39 +0000 [thread overview] Message-ID: <20220928063947.299333-1-masahiroy@kernel.org> (raw) This patch set refactors EXPORT_SYMBOL, <linux/export.h> and <asm/export.h>. Also, re-implement TRIM_UNUSED_KSYMS in one-pass. 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. Remove EXPORT_DATA_SYMBOL(). In v1, I broke ia64 because of missing distinction between functions and data. V2 handles it correctly. If the exported symbols is a function, KSYMTAB_FUNC is output. Otherwise, KSYMTAB_DATA is output. Changes in v3: - Move to the head of the series - New patch - Move struct kernel_symbol to kernel/module/internal.h - Some cleanups Changes in v2: - New patch - Use KSYMTAB_FUNC and KSYMTAB_DATA for functions and data, respectively This distinction is needed for ia64. - New patch - New patch Masahiro Yamada (8): kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o kbuild: rebuild .vmlinux.export.o when its prerequisite is updated kbuild: generate KSYMTAB entries by modpost ia64,export.h: replace EXPORT_DATA_SYMBOL* with EXPORT_SYMBOL* modpost: squash sym_update_namespace() into sym_add_exported() modpost: use null string instead of NULL pointer for default namespace modpost: squash report_sec_mismatch() and remove enum mismatch kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion .gitignore | 1 - Makefile | 37 ++---- 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 +- include/asm-generic/export.h | 83 +----------- include/linux/export-internal.h | 49 +++++++ include/linux/export.h | 114 +++------------- kernel/module/internal.h | 12 ++ scripts/Makefile.build | 15 +-- scripts/Makefile.modpost | 8 +- scripts/Makefile.vmlinux | 21 ++- scripts/Makefile.vmlinux_o | 26 +++- scripts/adjust_autoksyms.sh | 73 ---------- scripts/basic/fixdep.c | 3 +- scripts/check-local-export | 4 +- scripts/gen_autoksyms.sh | 62 --------- scripts/gen_ksymdeps.sh | 30 ----- scripts/link-vmlinux.sh | 12 -- scripts/mod/modpost.c | 228 ++++++++++++++++---------------- scripts/mod/modpost.h | 1 + scripts/remove-stale-files | 2 + 23 files changed, 270 insertions(+), 519 deletions(-) delete mode 100644 arch/ia64/include/asm/export.h delete mode 100755 scripts/adjust_autoksyms.sh delete mode 100755 scripts/gen_autoksyms.sh delete mode 100755 scripts/gen_ksymdeps.sh -- 2.34.1
next reply other threads:[~2022-09-28 6:46 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-28 6:39 Masahiro Yamada [this message] 2022-09-28 6:39 ` [PATCH v3 0/8] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TRIM_U Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 1/8] kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 2/8] kbuild: rebuild .vmlinux.export.o when its prerequisite is updated Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-10-09 1:19 ` [kbuild] b3830bad81: System_halted kernel test robot 2022-10-09 1:19 ` kernel test robot 2022-10-10 19:29 ` Masahiro Yamada 2022-10-10 19:29 ` Masahiro Yamada 2022-10-10 19:29 ` Masahiro Yamada 2022-10-11 9:36 ` Yujie Liu 2022-10-11 9:36 ` Yujie Liu 2022-10-11 9:36 ` Yujie Liu 2022-10-11 14:42 ` Masahiro Yamada 2022-10-11 14:42 ` Masahiro Yamada 2022-10-11 14:42 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 3/8] kbuild: generate KSYMTAB entries by modpost Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 19:29 ` Masahiro Yamada 2022-09-28 19:29 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 4/8] ia64,export.h: replace EXPORT_DATA_SYMBOL* with EXPORT_SYMBOL* Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 5/8] modpost: squash sym_update_namespace() into sym_add_exported() Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 6/8] modpost: use null string instead of NULL pointer for default namespace Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 9:53 ` David Laight 2022-09-28 13:52 ` Masahiro Yamada 2022-09-28 13:52 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 7/8] modpost: squash report_sec_mismatch() and remove enum mismatch Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 6:39 ` [PATCH v3 8/8] kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion Masahiro Yamada 2022-09-28 6:39 ` Masahiro Yamada 2022-09-28 21:04 ` [PATCH v3 0/8] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TRIM_UNUSED_KSYMS Masahiro Yamada 2022-09-28 21:04 ` [PATCH v3 0/8] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TR Masahiro Yamada
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