From 0d2573a2b7838a4f6934c2835e6730b38df4bcc9 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 9 Nov 2022 14:30:55 +0100 Subject: modpost: Join broken long printed messages Breaking long printed messages in multiple lines makes it very hard to look up where they originated from. Signed-off-by: Geert Uytterhoeven Reviewed-by: Nicolas Schier Signed-off-by: Masahiro Yamada --- scripts/mod/modpost.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'scripts/mod/modpost.c') diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 2c80da0220c3..56d856f2e511 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -519,9 +519,8 @@ static int parse_elf(struct elf_info *info, const char *filename) int nobits = sechdrs[i].sh_type == SHT_NOBITS; if (!nobits && sechdrs[i].sh_offset > info->size) { - fatal("%s is truncated. sechdrs[i].sh_offset=%lu > " - "sizeof(*hrd)=%zu\n", filename, - (unsigned long)sechdrs[i].sh_offset, + fatal("%s is truncated. sechdrs[i].sh_offset=%lu > sizeof(*hrd)=%zu\n", + filename, (unsigned long)sechdrs[i].sh_offset, sizeof(*hdr)); return 0; } @@ -1355,8 +1354,7 @@ static void report_extable_warnings(const char* modname, struct elf_info* elf, get_pretty_name(is_function(tosym), &to_pretty_name, &to_pretty_name_p); - warn("%s(%s+0x%lx): Section mismatch in reference" - " from the %s %s%s to the %s %s:%s%s\n", + warn("%s(%s+0x%lx): Section mismatch in reference from the %s %s%s to the %s %s:%s%s\n", modname, fromsec, (long)r->r_offset, from_pretty_name, fromsym_name, from_pretty_name_p, to_pretty_name, tosec, tosym_name, to_pretty_name_p); -- cgit v1.2.3 From f65a486821cfd363833079b2a7b0769250ee21c9 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sun, 11 Dec 2022 22:04:07 +0900 Subject: kbuild: change module.order to list *.o instead of *.ko scripts/Makefile.build replaces the suffix .o with .ko, then scripts/Makefile.modpost calls the sed command to change .ko back to the original .o suffix. Instead of converting the suffixes back-and-forth, store the .o paths in modules.order, and replace it with .ko in 'make modules_install'. This avoids the unneeded sed command. Signed-off-by: Masahiro Yamada Reviewed-by: Luis Chamberlain --- Makefile | 2 +- scripts/Makefile.build | 2 +- scripts/Makefile.modfinal | 6 +++--- scripts/Makefile.modinst | 2 +- scripts/Makefile.modpost | 7 +++++-- scripts/clang-tools/gen_compile_commands.py | 8 ++++---- scripts/gen_autoksyms.sh | 2 +- scripts/mod/modpost.c | 11 ++++------- scripts/modules-check.sh | 2 +- 9 files changed, 21 insertions(+), 21 deletions(-) (limited to 'scripts/mod/modpost.c') diff --git a/Makefile b/Makefile index 591485152a95..f506879e7452 100644 --- a/Makefile +++ b/Makefile @@ -1564,7 +1564,7 @@ __modinst_pre: rm -f $(MODLIB)/build ; \ ln -s $(CURDIR) $(MODLIB)/build ; \ fi - @sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order + @sed 's:^\(.*\)\.o$$:kernel/\1.ko:' modules.order > $(MODLIB)/modules.order @cp -f modules.builtin $(MODLIB)/ @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 799df12b53f3..267eb7aac5b2 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -435,7 +435,7 @@ $(obj)/built-in.a: $(real-obj-y) FORCE # modules.order unless contained modules are updated. cmd_modules_order = { $(foreach m, $(real-prereqs), \ - $(if $(filter %/modules.order, $m), cat $m, echo $(patsubst %.o,%.ko,$m));) :; } \ + $(if $(filter %/modules.order, $m), cat $m, echo $m);) :; } \ > $@ $(obj)/modules.order: $(obj-m) FORCE diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal index 83f2797e530c..a30d5b08eee9 100644 --- a/scripts/Makefile.modfinal +++ b/scripts/Makefile.modfinal @@ -15,7 +15,7 @@ include $(srctree)/scripts/Makefile.lib # find all modules listed in modules.order modules := $(call read-file, $(MODORDER)) -__modfinal: $(modules) +__modfinal: $(modules:%.o=%.ko) @: # modname and part-of-module are set to make c_flags define proper module flags @@ -57,13 +57,13 @@ if_changed_except = $(if $(call newer_prereqs_except,$(2))$(cmd-check), \ printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:) # Re-generate module BTFs if either module's .ko or vmlinux changed -$(modules): %.ko: %.o %.mod.o scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),vmlinux) FORCE +%.ko: %.o %.mod.o scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),vmlinux) FORCE +$(call if_changed_except,ld_ko_o,vmlinux) ifdef CONFIG_DEBUG_INFO_BTF_MODULES +$(if $(newer-prereqs),$(call cmd,btf_ko)) endif -targets += $(modules) $(modules:.ko=.mod.o) +targets += $(modules:%.o=%.ko) $(modules:%.o=%.mod.o) # Add FORCE to the prequisites of a target to force it to be always rebuilt. # --------------------------------------------------------------------------- diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index 65aac6be78ec..836391e5d209 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -26,7 +26,7 @@ suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst -modules := $(patsubst $(extmod_prefix)%, $(dst)/%$(suffix-y), $(modules)) +modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules)) __modinst: $(modules) @: diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 55a72f5eb76d..f814a6acd200 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -107,7 +107,10 @@ ifneq ($(KBUILD_MODPOST_WARN)$(missing-input),) modpost-args += -w endif -modorder-if-needed := $(if $(KBUILD_MODULES), $(MODORDER)) +ifdef KBUILD_MODULES +modorder-if-needed := $(MODORDER) +modpost-args += -T $(MODORDER) +endif MODPOST = scripts/mod/modpost @@ -119,7 +122,7 @@ quiet_cmd_modpost = MODPOST $@ echo >&2 "WARNING: $(missing-input) is missing."; \ echo >&2 " Modules may not have dependencies or modversions."; \ echo >&2 " You may get many unresolved symbol warnings.";) \ - sed 's/ko$$/o/' $(or $(modorder-if-needed), /dev/null) | $(MODPOST) $(modpost-args) -T - $(vmlinux.o-if-present) + $(MODPOST) $(modpost-args) $(vmlinux.o-if-present) targets += $(output-symdump) $(output-symdump): $(modorder-if-needed) $(vmlinux.o-if-present) $(module.symvers-if-present) $(MODPOST) FORCE diff --git a/scripts/clang-tools/gen_compile_commands.py b/scripts/clang-tools/gen_compile_commands.py index d800b2c0af97..0227522959a4 100755 --- a/scripts/clang-tools/gen_compile_commands.py +++ b/scripts/clang-tools/gen_compile_commands.py @@ -138,10 +138,10 @@ def cmdfiles_for_modorder(modorder): """ with open(modorder) as f: for line in f: - ko = line.rstrip() - base, ext = os.path.splitext(ko) - if ext != '.ko': - sys.exit('{}: module path must end with .ko'.format(ko)) + obj = line.rstrip() + base, ext = os.path.splitext(obj) + if ext != '.o': + sys.exit('{}: module path must end with .o'.format(obj)) mod = base + '.mod' # Read from *.mod, to get a list of objects that compose the module. with open(mod) as m: diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh index 653fadbad302..12bcfae940ee 100755 --- a/scripts/gen_autoksyms.sh +++ b/scripts/gen_autoksyms.sh @@ -48,7 +48,7 @@ cat > "$output_file" << EOT EOT { - [ -n "${read_modorder}" ] && sed 's/ko$/usyms/' modules.order | xargs cat + [ -n "${read_modorder}" ] && sed 's/o$/usyms/' modules.order | xargs cat echo "$needed_symbols" [ -n "$ksym_wl" ] && cat "$ksym_wl" } | sed -e 's/ /\n/g' | sed -n -e '/^$/!p' | diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 56d856f2e511..b48838a71bf6 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1856,11 +1856,9 @@ static void read_symbols_from_files(const char *filename) FILE *in = stdin; char fname[PATH_MAX]; - if (strcmp(filename, "-") != 0) { - in = fopen(filename, "r"); - if (!in) - fatal("Can't open filenames file %s: %m", filename); - } + in = fopen(filename, "r"); + if (!in) + fatal("Can't open filenames file %s: %m", filename); while (fgets(fname, PATH_MAX, in) != NULL) { if (strends(fname, "\n")) @@ -1868,8 +1866,7 @@ static void read_symbols_from_files(const char *filename) read_symbols(fname); } - if (in != stdin) - fclose(in); + fclose(in); } #define SZ 500 diff --git a/scripts/modules-check.sh b/scripts/modules-check.sh index e06327722263..4c8da90de78e 100755 --- a/scripts/modules-check.sh +++ b/scripts/modules-check.sh @@ -16,7 +16,7 @@ check_same_name_modules() for m in $(sed 's:.*/::' "$1" | sort | uniq -d) do echo "error: the following would cause module name conflict:" >&2 - sed -n "/\/$m/s:^: :p" "$1" >&2 + sed -n "/\/$m/s:^\(.*\)\.o\$: \1.ko:p" "$1" >&2 exit_code=1 done } -- cgit v1.2.3 From 19331e84c3873256537d446afec1f6c507f8c4ef Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Tue, 13 Dec 2022 11:35:29 -0700 Subject: modpost: Include '.text.*' in TEXT_SECTIONS Commit 6c730bfc894f ("modpost: handle -ffunction-sections") added ".text.*" to the OTHER_TEXT_SECTIONS macro to fix certain section mismatch warnings. Unfortunately, this makes it impossible for modpost to warn about section mismatches with LTO, which implies '-ffunction-sections', as all functions are put in their own '.text.' sections, which may still reference functions in sections they are not supposed to, such as __init. Fix this by moving ".text.*" into TEXT_SECTIONS, so that configurations with '-ffunction-sections' will see warnings about mismatched sections. Link: https://lore.kernel.org/Y39kI3MOtVI5BAnV@google.com/ Reported-by: Vincent Donnefort Reviewed-and-tested-by: Alexander Lobakin Reviewed-by: Sami Tolvanen Tested-by: Vincent Donnefort Signed-off-by: Nathan Chancellor Signed-off-by: Masahiro Yamada --- scripts/mod/modpost.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'scripts/mod/modpost.c') diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index b48838a71bf6..640e1a244ba9 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -822,10 +822,10 @@ static void check_section(const char *modname, struct elf_info *elf, #define ALL_EXIT_SECTIONS EXIT_SECTIONS, ALL_XXXEXIT_SECTIONS #define DATA_SECTIONS ".data", ".data.rel" -#define TEXT_SECTIONS ".text", ".text.unlikely", ".sched.text", \ +#define TEXT_SECTIONS ".text", ".text.*", ".sched.text", \ ".kprobes.text", ".cpuidle.text", ".noinstr.text" #define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \ - ".fixup", ".entry.text", ".exception.text", ".text.*", \ + ".fixup", ".entry.text", ".exception.text", \ ".coldtext", ".softirqentry.text" #define INIT_SECTIONS ".init.*" -- cgit v1.2.3