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authorNiklas Cassel <cassel@kernel.org>2026-09-16 15:00:32 +0200
committerNiklas Cassel <cassel@kernel.org>2026-09-16 16:18:00 +0200
commit8d836581f9b1f57ceaa2b47654754ef1260b410b (patch)
tree1dbd4d0dfb99c2e238356cbe947e5b0be3e3a571 /tools/objtool/Makefile
downloadlinux-stable-8d836581f9b1f57ceaa2b47654754ef1260b410b.tar.gz
linux-stable-8d836581f9b1f57ceaa2b47654754ef1260b410b.zip
ata: libata-scsi: fix ata_dsm_trim_pages() kernel-docgrafted
make htmldocs fails with: Documentation/driver-api/libata:604: ./drivers/ata/libata-scsi.c:2301: ERROR: Unexpected indentation. [docutils] The Return: section of ata_dsm_trim_pages() ends its first sentence with a colon and continues with an indented bullet list. reStructuredText requires a blank line before an indented block, so docutils chokes on the list. Simply adding the missing blank line does not work either: Return: is a kernel-doc "special section", which is terminated by the first blank line, so the bullet list would end up in the Description section, detached from the sentence introducing it. Spell the two bounds out as prose instead, so that the Return: section stays self-contained. Documentation-only change. Fixes: e64e6b5dc867 ("ata: libata-scsi: scale DSM TRIM payload by MAX PAGES PER DSM COMMAND") Reported-by: Thomas Huth <thuth@redhat.com> Closes: https://lore.kernel.org/linux-ide/b0a0b8e8-cc4f-4c7b-8bc5-fee0712d405a@redhat.com/ Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Link: https://lore.kernel.org/r/20260916130031.29990-2-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org>
Diffstat (limited to 'tools/objtool/Makefile')
-rw-r--r--tools/objtool/Makefile156
1 files changed, 156 insertions, 0 deletions
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
new file mode 100644
index 000000000..a4484fd22
--- /dev/null
+++ b/tools/objtool/Makefile
@@ -0,0 +1,156 @@
+# SPDX-License-Identifier: GPL-2.0
+include ../scripts/Makefile.include
+include ../scripts/Makefile.arch
+
+ifeq ($(SRCARCH),x86)
+ BUILD_ORC := y
+ ARCH_HAS_KLP := y
+endif
+
+ifeq ($(SRCARCH),loongarch)
+ BUILD_ORC := y
+endif
+
+ifeq ($(ARCH_HAS_KLP),y)
+ HAVE_XXHASH = $(shell printf "$(pound)include <xxhash.h>\nXXH3_state_t *state;int main() {}" | \
+ $(HOSTCC) $(HOSTCFLAGS) -xc - -o /dev/null -lxxhash 2> /dev/null && echo y || echo n)
+ ifeq ($(HAVE_XXHASH),y)
+ BUILD_KLP := y
+ LIBXXHASH_CFLAGS := $(shell $(HOSTPKG_CONFIG) libxxhash --cflags 2>/dev/null) \
+ -DBUILD_KLP
+ LIBXXHASH_LIBS := $(shell $(HOSTPKG_CONFIG) libxxhash --libs 2>/dev/null || echo -lxxhash)
+ endif
+endif
+
+export BUILD_ORC BUILD_KLP
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+endif
+
+RM ?= rm -f
+
+LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/
+ifneq ($(OUTPUT),)
+ LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd
+else
+ LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd
+endif
+LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a
+
+OBJTOOL := $(OUTPUT)objtool
+OBJTOOL_IN := $(OBJTOOL)-in.o
+
+LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)
+LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
+
+all: $(OBJTOOL)
+
+WARNINGS := -Werror -Wall -Wextra -Wmissing-prototypes \
+ -Wmissing-declarations -Wwrite-strings \
+ -Wno-implicit-fallthrough -Wno-sign-compare \
+ -Wno-unused-parameter
+
+INCLUDES := -I$(srctree)/tools/include \
+ -I$(srctree)/tools/include/uapi \
+ -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
+ -I$(srctree)/tools/arch/$(SRCARCH)/include \
+ -I$(srctree)/tools/objtool/include \
+ -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \
+ -I$(srctree)/tools/lib
+
+OBJTOOL_CFLAGS := -std=gnu11 -fomit-frame-pointer -O2 -g $(WARNINGS) \
+ $(INCLUDES) $(LIBELF_FLAGS) $(LIBXXHASH_CFLAGS) $(HOSTCFLAGS)
+
+OBJTOOL_LDFLAGS := $(LIBSUBCMD) $(LIBELF_LIBS) $(LIBXXHASH_LIBS) $(HOSTLDFLAGS)
+
+# Allow old libelf to be used:
+elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - 2>/dev/null | grep elf_getshdr)
+OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
+
+# Always want host compilation.
+HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)"
+
+#
+# To support disassembly, objtool needs libopcodes which is provided
+# with libbfd (binutils-dev or binutils-devel package).
+#
+# We check using HOSTCC directly rather than the shared feature framework
+# because objtool is a host tool that links against host libraries.
+#
+# When using shared libraries, -lopcodes is sufficient as dependencies are
+# resolved automatically. With static libraries, we must explicitly link
+# against libopcodes' dependencies: libbfd, libiberty, and sometimes libz.
+# Try each combination and use the first one that succeeds.
+#
+LIBOPCODES_LIBS := $(shell \
+ for libs in "-lopcodes" \
+ "-lopcodes -lbfd" \
+ "-lopcodes -lbfd -liberty" \
+ "-lopcodes -lbfd -liberty -lz"; do \
+ echo 'extern void disassemble_init_for_target(void *);' \
+ 'int main(void) { disassemble_init_for_target(0); return 0; }' | \
+ $(HOSTCC) -xc - -o /dev/null $$libs 2>/dev/null && \
+ echo "$$libs" && break; \
+ done)
+
+# Styled disassembler support requires binutils >= 2.39
+HAVE_DISASM_STYLED := $(shell echo '$(pound)include <dis-asm.h>' | \
+ $(HOSTCC) -E -xc - 2>/dev/null | grep -q disassembler_style && echo y)
+
+BUILD_DISAS := n
+
+ifneq ($(LIBOPCODES_LIBS),)
+ BUILD_DISAS := y
+ OBJTOOL_CFLAGS += -DDISAS -DPACKAGE='"objtool"'
+ OBJTOOL_LDFLAGS += $(LIBOPCODES_LIBS)
+ifeq ($(HAVE_DISASM_STYLED),y)
+ OBJTOOL_CFLAGS += -DDISASM_INIT_STYLED
+endif
+endif
+
+export BUILD_DISAS
+
+AWK = awk
+MKDIR = mkdir
+
+export srctree OUTPUT CFLAGS SRCARCH AWK
+include $(srctree)/tools/build/Makefile.include
+
+$(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE
+ $(Q)$(CONFIG_SHELL) ./sync-check.sh
+ $(Q)$(MAKE) $(build)=objtool $(HOST_OVERRIDES) CFLAGS="$(OBJTOOL_CFLAGS)" \
+ LDFLAGS="$(OBJTOOL_LDFLAGS)"
+
+
+$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
+ $(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $(OBJTOOL_LDFLAGS) -o $@
+
+
+$(LIBSUBCMD_OUTPUT):
+ $(Q)$(MKDIR) -p $@
+
+$(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE
+ $(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \
+ DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \
+ $(HOST_OVERRIDES) EXTRA_CFLAGS="$(OBJTOOL_CFLAGS)" \
+ $@
+
+$(LIBSUBCMD)-clean:
+ $(call QUIET_CLEAN, libsubcmd)
+ $(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT)
+
+clean: $(LIBSUBCMD)-clean
+ $(Q)find $(OUTPUT) \( -name '*.o' -o -name '\.*.cmd' -o -name '\.*.d' \) -type f -print | xargs $(RM)
+ $(Q)$(RM) $(OUTPUT)arch/x86/lib/cpu-feature-names.c $(OUTPUT)fixdep
+ $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
+ $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.objtool
+ $(Q)$(RM) -r -- $(OUTPUT)feature
+
+mrproper: clean
+ $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
+
+FORCE:
+
+.PHONY: clean mrproper FORCE