As a technical note, when directories and files are specified, the
entire CONFIG_INITRAMFS_SOURCE is passed to
-scripts/gen_initramfs_list.sh. This means that CONFIG_INITRAMFS_SOURCE
+usr/gen_initramfs_list.sh. This means that CONFIG_INITRAMFS_SOURCE
can really be interpreted as any legal argument to
gen_initramfs_list.sh. If a directory is specified as an argument then
the contents are scanned, uid/gid translation is performed, and
usr/gen_init_cpio file directives are output. If a directory is
-specified as an argument to scripts/gen_initramfs_list.sh then the
+specified as an argument to usr/gen_initramfs_list.sh then the
contents of the file are simply copied to the output. All of the output
directives from directory scanning and file contents copying are
processed by usr/gen_init_cpio.
-See also 'scripts/gen_initramfs_list.sh -h'.
+See also 'usr/gen_initramfs_list.sh -h'.
Where's this all leading?
=========================
The kernel does not depend on external cpio tools. If you specify a
directory instead of a configuration file, the kernel's build infrastructure
creates a configuration file from that directory (usr/Makefile calls
-scripts/gen_initramfs_list.sh), and proceeds to package up that directory
+usr/gen_initramfs_list.sh), and proceeds to package up that directory
using the config file (by feeding it to usr/gen_init_cpio, which is created
from usr/gen_init_cpio.c). The kernel's build-time cpio creation code is
entirely self-contained, and the kernel's boot-time extractor is also
Practical solutions to kconfig recursive issue
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Developers who run into the recursive Kconfig issue have three options
+Developers who run into the recursive Kconfig issue have two options
at their disposal. We document them below and also provide a list of
historical issues resolved through these different solutions.
b) Match dependency semantics:
b1) Swap all "select FOO" to "depends on FOO" or,
b2) Swap all "depends on FOO" to "select FOO"
- c) Consider the use of "imply" instead of "select"
The resolution to a) can be tested with the sample Kconfig file
Documentation/kbuild/Kconfig.recursion-issue-01 through the removal
Example:
#scripts/kconfig/Makefile
- HOSTLOADLIBES_qconf := -L$(QTDIR)/lib
+ HOSTLDLIBS_qconf := -L$(QTDIR)/lib
When linking qconf, it will be passed the extra option
"-L$(QTDIR)/lib".
KBUILD_AFLAGS_MODULE := -DMODULE
KBUILD_CFLAGS_MODULE := -DMODULE
KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
-LDFLAGS :=
+KBUILD_LDFLAGS :=
GCC_PLUGINS_CFLAGS :=
export ARCH SRCARCH CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
export MAKE LEX YACC AWK GENKSYMS INSTALLKERNEL PERL PYTHON PYTHON2 PYTHON3 UTS_MACHINE
export HOSTCXX KBUILD_HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
-export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
+export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
export CFLAGS_KASAN CFLAGS_KASAN_NOSANITIZE CFLAGS_UBSAN
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
endif
ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
-KBUILD_CFLAGS_KERNEL += $(call cc-option,-ffunction-sections,)
-KBUILD_CFLAGS_KERNEL += $(call cc-option,-fdata-sections,)
+KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections
+LDFLAGS_vmlinux += --gc-sections
endif
# arch Makefile may override CC so keep this after arch Makefile is included
KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
-ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
-LDFLAGS_vmlinux += $(call ld-option, --gc-sections,)
-endif
-
ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
LDFLAGS_vmlinux += $(call ld-option, -X,)
endif
# Final link of vmlinux with optional arch pass after final link
cmd_link-vmlinux = \
- $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) ; \
+ $(CONFIG_SHELL) $< $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_vmlinux) ; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE
# Packaging of the kernel to various formats
# ---------------------------------------------------------------------------
-# rpm target kept for backward compatibility
package-dir := scripts/package
%src-pkg: FORCE
$(Q)$(MAKE) $(build)=$(package-dir) $@
%pkg: include/config/kernel.release FORCE
$(Q)$(MAKE) $(build)=$(package-dir) $@
-rpm: rpm-pkg
- @echo " WARNING: \"rpm\" target will be removed after Linux 4.18"
- @echo " Please use \"rpm-pkg\" instead."
# Brief documentation of the typical targets used
# Finally dump eveything into kernel build system
KBUILD_CFLAGS += $(cflags-y)
KBUILD_AFLAGS += $(KBUILD_CFLAGS)
-LDFLAGS += $(ldflags-y)
+KBUILD_LDFLAGS += $(ldflags-y)
head-y := arch/arc/kernel/head.o
KBUILD_CPPFLAGS += -mbig-endian
CHECKFLAGS += -D__ARMEB__
AS += -EB
-LDFLAGS += -EB
+KBUILD_LDFLAGS += -EB
else
KBUILD_CPPFLAGS += -mlittle-endian
CHECKFLAGS += -D__ARMEL__
AS += -EL
-LDFLAGS += -EL
+KBUILD_LDFLAGS += -EL
endif
#
AS += -EB
# Prefer the baremetal ELF build target, but not all toolchains include
# it so fall back to the standard linux version if needed.
-LDFLAGS += -EB $(call ld-option, -maarch64elfb, -maarch64linuxb)
+KBUILD_LDFLAGS += -EB $(call ld-option, -maarch64elfb, -maarch64linuxb)
UTS_MACHINE := aarch64_be
else
KBUILD_CPPFLAGS += -mlittle-endian
CHECKFLAGS += -D__AARCH64EL__
AS += -EL
# Same as above, prefer ELF but fall back to linux target if needed.
-LDFLAGS += -EL $(call ld-option, -maarch64elf, -maarch64linux)
+KBUILD_LDFLAGS += -EL $(call ld-option, -maarch64elf, -maarch64linux)
UTS_MACHINE := aarch64
endif
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
LINKFLAGS += -mbig-endian
-KBUILD_LDFLAGS += -mbig-endian
-LDFLAGS += -EB
+KBUILD_LDFLAGS += -mbig-endian -EB
CHECKFLAGS += -D_BIG_ENDIAN
endif
KBUILD_CFLAGS += -D__linux__
KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
KBUILD_AFLAGS += $(aflags-y)
-LDFLAGS += $(ldflags-y)
+KBUILD_LDFLAGS += $(ldflags-y)
CHECKFLAGS += -msize-long
KBUILD_CFLAGS += $(cflags-y)
KBUILD_AFLAGS += $(aflags-y)
-
-# no KBUILD_LDFLAGS?
-LDFLAGS += $(ldflags-y)
+KBUILD_LDFLAGS += $(ldflags-y)
# Thread-info register will be r19. This value is not configureable;
# it is hard-coded in several files.
KBUILD_AFLAGS += -D__uClinux__
endif
-LDFLAGS := -m m68kelf
+KBUILD_LDFLAGS := -m m68kelf
KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
ifdef CONFIG_SUN3
ifdef CONFIG_CPU_BIG_ENDIAN
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
-LDFLAGS += -EB
+KBUILD_LDFLAGS += -EB
else
KBUILD_CFLAGS += -mlittle-endian
KBUILD_AFLAGS += -mlittle-endian
-LDFLAGS += -EL
+KBUILD_LDFLAGS += -EL
endif
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
# instead of .eh_frame so we don't discard them.
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
-LDFLAGS += -m $(ld-emul)
+KBUILD_LDFLAGS += -m $(ld-emul)
ifdef CONFIG_MIPS
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
vmlinuzobjs-y += $(obj)/piggy.o
quiet_cmd_zld = LD $@
- cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
+ cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
quiet_cmd_strip = STRIP $@
cmd_strip = $(STRIP) -s $@
vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
# Rule to make the bootloader
$(obj)/rom: $(addprefix $(obj)/,$(OBJECTS))
- $(LD) $(LDFLAGS) $(LDSCRIPT) -o $@ $^
+ $(LD) $(KBUILD_LDFLAGS) $(LDSCRIPT) -o $@ $^
$(obj)/%.o: $(obj)/%.gz
$(LD) -r -o $@ -b binary $<
ifdef CONFIG_CPU_LITTLE_ENDIAN
KBUILD_CFLAGS += $(call cc-option, -EL)
KBUILD_AFLAGS += $(call cc-option, -EL)
-LDFLAGS += $(call cc-option, -EL)
+KBUILD_LDFLAGS += $(call cc-option, -EL)
CHECKFLAGS += -D__NDS32_EL__
else
KBUILD_CFLAGS += $(call cc-option, -EB)
KBUILD_AFLAGS += $(call cc-option, -EB)
-LDFLAGS += $(call cc-option, -EB)
+KBUILD_LDFLAGS += $(call cc-option, -EB)
CHECKFLAGS += -D__NDS32_EB__
endif
ifdef CONFIG_CPU_LITTLE_ENDIAN
KBUILD_CFLAGS += -mlittle-endian
-LDFLAGS += -EL
+KBUILD_LDFLAGS += -EL
LDEMULATION := lppc
GNUTARGET := powerpcle
MULTIPLEWORD := -mno-multiple
KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
else
KBUILD_CFLAGS += $(call cc-option,-mbig-endian)
-LDFLAGS += -EB
+KBUILD_LDFLAGS += -EB
LDEMULATION := ppc
GNUTARGET := powerpc
MULTIPLEWORD := -mmultiple
ifeq ($(HAS_BIARCH),y)
KBUILD_CFLAGS += -m$(BITS)
KBUILD_AFLAGS += -m$(BITS) -Wl,-a$(BITS)
-LDFLAGS += -m elf$(BITS)$(LDEMULATION)
+KBUILD_LDFLAGS += -m elf$(BITS)$(LDEMULATION)
KBUILD_ARFLAGS += --target=elf$(BITS)-$(GNUTARGET)
endif
KBUILD_CFLAGS += $(call cc-ifversion, -ge, 0500, -DCONFIG_ARCH_SUPPORTS_INT128)
KBUILD_MARCH = rv64im
- LDFLAGS += -melf64lriscv
+ KBUILD_LDFLAGS += -melf64lriscv
else
BITS := 32
UTS_MACHINE := riscv32
KBUILD_CFLAGS += -mabi=ilp32
KBUILD_AFLAGS += -mabi=ilp32
KBUILD_MARCH = rv32im
- LDFLAGS += -melf32lriscv
+ KBUILD_LDFLAGS += -melf32lriscv
endif
KBUILD_CFLAGS += -Wall
#
LD_BFD := elf64-s390
-LDFLAGS := -m elf64_s390
+KBUILD_LDFLAGS := -m elf64_s390
KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC
KBUILD_AFLAGS += -m64
ifdef CONFIG_CPU_LITTLE_ENDIAN
ld-bfd := elf32-$(UTS_MACHINE)-linux
LDFLAGS_vmlinux += --defsym jiffies=jiffies_64 --oformat $(ld-bfd)
-LDFLAGS += -EL
+KBUILD_LDFLAGS += -EL
else
ld-bfd := elf32-$(UTS_MACHINE)big-linux
LDFLAGS_vmlinux += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd)
-LDFLAGS += -EB
+KBUILD_LDFLAGS += -EB
endif
export ld-bfd BITS
#
CHECKFLAGS += -D__sparc__
-LDFLAGS := -m elf32_sparc
+KBUILD_LDFLAGS := -m elf32_sparc
export BITS := 32
UTS_MACHINE := sparc
#
CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__
-LDFLAGS := -m elf64_sparc
+KBUILD_LDFLAGS := -m elf64_sparc
export BITS := 64
UTS_MACHINE := sparc64
# The wrappers will select whether using "malloc" or the kernel allocator.
LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
-LD_FLAGS_CMDLINE = $(foreach opt,$(LDFLAGS),-Wl,$(opt))
+LD_FLAGS_CMDLINE = $(foreach opt,$(KBUILD_LDFLAGS),-Wl,$(opt))
# Used by link-vmlinux.sh which has special support for um link
export CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) $(LD_FLAGS_CMDLINE)
KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
-LDFLAGS := -m elf_$(UTS_MACHINE)
+KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE)
#
# The 64-bit kernel must be aligned to 2MB. Pass -z max-page-size=0x200000 to
# by the linker.
#
ifdef CONFIG_X86_64
-LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
+KBUILD_LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
endif
# Speed up the build
ifeq ($(CONFIG_X86_32),y)
START := 0x8048000
-LDFLAGS += -m elf_i386
+KBUILD_LDFLAGS += -m elf_i386
ELF_ARCH := i386
ELF_FORMAT := elf32-i386
CHECKFLAGS += -D__i386__
CHECKFLAGS += -m64 -D__x86_64__
KBUILD_AFLAGS += -m64
-LDFLAGS += -m elf_x86_64
+KBUILD_LDFLAGS += -m elf_x86_64
KBUILD_CPPFLAGS += -m64
ELF_ARCH := i386:x86-64
GCOV_PROFILE := n
UBSAN_SANITIZE :=n
-LDFLAGS := -m elf_$(UTS_MACHINE)
+KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE)
# Compressed kernel should be built as PIE since it may be loaded at any
# address by the bootloader.
ifeq ($(CONFIG_X86_32),y)
-LDFLAGS += $(call ld-option, -pie) $(call ld-option, --no-dynamic-linker)
+KBUILD_LDFLAGS += $(call ld-option, -pie) $(call ld-option, --no-dynamic-linker)
else
# To build 64-bit compressed kernel as PIE, we disable relocation
# overflow check to avoid relocation overflow error with a new linker
# command-line option, -z noreloc-overflow.
-LDFLAGS += $(shell $(LD) --help 2>&1 | grep -q "\-z noreloc-overflow" \
+KBUILD_LDFLAGS += $(shell $(LD) --help 2>&1 | grep -q "\-z noreloc-overflow" \
&& echo "-z noreloc-overflow -pie --no-dynamic-linker")
endif
LDFLAGS_vmlinux := -T
KBUILD_AFLAGS += -mlongcalls -mtext-section-literals
ifneq ($(CONFIG_LD_NO_RELAX),)
-LDFLAGS := --no-relax
+KBUILD_LDFLAGS := --no-relax
endif
ifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1)
$(OBJS) $@
$(obj)/../Image.elf: $(obj)/Image.o $(obj)/boot.lds
- $(Q)$(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) \
+ $(Q)$(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_vmlinux) \
-T $(obj)/boot.lds \
--build-id=none \
-o $@ $(obj)/Image.o
__INITRODATA
.align 8
- .globl VMLINUX_SYMBOL(system_certificate_list)
-VMLINUX_SYMBOL(system_certificate_list):
+ .globl system_certificate_list
+system_certificate_list:
__cert_list_start:
#ifdef CONFIG_MODULE_SIG
.incbin "certs/signing_key.x509"
__cert_list_end:
#ifdef CONFIG_SYSTEM_EXTRA_CERTIFICATE
- .globl VMLINUX_SYMBOL(system_extra_cert)
+ .globl system_extra_cert
.size system_extra_cert, CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE
-VMLINUX_SYMBOL(system_extra_cert):
+system_extra_cert:
.fill CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE, 1, 0
.align 4
- .globl VMLINUX_SYMBOL(system_extra_cert_used)
-VMLINUX_SYMBOL(system_extra_cert_used):
+ .globl system_extra_cert_used
+system_extra_cert_used:
.int 0
#endif /* CONFIG_SYSTEM_EXTRA_CERTIFICATE */
.align 8
- .globl VMLINUX_SYMBOL(system_certificate_list_size)
-VMLINUX_SYMBOL(system_certificate_list_size):
+ .globl system_certificate_list_size
+system_certificate_list_size:
#ifdef CONFIG_64BIT
.quad __cert_list_end - __cert_list_start
#else
#define LOAD_OFFSET 0
#endif
-#include <linux/export.h>
-
/* Align . to a 8 byte boundary equals to maximum function alignment. */
#define ALIGN_FUNCTION() . = ALIGN(8)
* hackers place grumpy comments in header files.
*/
-#define __VMLINUX_SYMBOL(x) x
-#define __VMLINUX_SYMBOL_STR(x) #x
-
-/* Indirect, so macros are expanded before pasting. */
-#define VMLINUX_SYMBOL(x) __VMLINUX_SYMBOL(x)
-#define VMLINUX_SYMBOL_STR(x) __VMLINUX_SYMBOL_STR(x)
-
#ifndef __ASSEMBLY__
#ifdef MODULE
extern struct module __this_module;
bool "Dead code and data elimination (EXPERIMENTAL)"
depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION
depends on EXPERT
+ depends on $(cc-option,-ffunction-sections -fdata-sections)
+ depends on $(ld-option,--gc-sections)
help
Enable this if you want to do dead code and data elimination with
the linker by compiling with -ffunction-sections -fdata-sections,
$(CC) $(1) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
# ld-option
-# Usage: LDFLAGS += $(call ld-option, -X, -Y)
-ld-option = $(call try-run, $(LD) $(LDFLAGS) $(1) -v,$(1),$(2),$(3))
+# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
+ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
# ar-option
# Usage: KBUILD_ARFLAGS := $(call ar-option,D)
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
> $(@D)/.tmp_$(@F:.o=.ver); \
\
- $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
+ $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
-T $(@D)/.tmp_$(@F:.o=.ver); \
rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
else \
"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
"$(if $(CONFIG_64BIT),64,32)" \
"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
- "$(LD)" "$(NM)" "$(RM)" "$(MV)" \
+ "$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
"$(if $(part-of-module),1,0)" "$(@)";
recordmcount_source := $(srctree)/scripts/recordmcount.pl
endif # BUILD_C_RECORDMCOUNT
$(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
> $(@D)/.tmp_$(@F:.o=.ver); \
\
- $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
+ $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
-T $(@D)/.tmp_$(@F:.o=.ver); \
rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
else \
cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
$(__cpp_flags)
-ld_flags = $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
+ld_flags = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes
# Step 6), final link of the modules with optional arch pass after final link
quiet_cmd_ld_ko_o = LD [M] $@
cmd_ld_ko_o = \
- $(LD) -r $(LDFLAGS) \
+ $(LD) -r $(KBUILD_LDFLAGS) \
$(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
-o $@ $(filter-out FORCE,$^) ; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
compiler="$*"
-if !( $compiler --version | grep -q clang) ; then
+if ! ( $compiler --version | grep -q clang) ; then
echo 0
exit 1
fi
* x = (T)\(kmalloc(E1, ...)\|vmalloc(E1)\|dma_alloc_coherent(...,E1,...)\|
kmalloc_node(E1, ...)\|kmem_cache_alloc(...)\|kmem_alloc(E1, ...)\|
- devm_kmalloc(...,E1,...)\|kvmalloc(E1, ...)\|pci_alloc_consistent(...,E1,...)\|
- kvmalloc_node(E1,...)\);
+ devm_kmalloc(...,E1,...)\|kvmalloc(E1, ...)\|kvmalloc_node(E1,...)\);
if ((x==NULL) || ...) S
* memset((T2)x,0,E1);
- x = (T)kvmalloc(E1,E2);
+ x = (T)kvzalloc(E1,E2);
|
-- x = pci_alloc_consistent(E2,E1,E3);
-+ x = pci_zalloc_consistent(E2,E1,E3);
-|
-- x = (T *)pci_alloc_consistent(E2,E1,E3);
-+ x = pci_zalloc_consistent(E2,E1,E3);
-|
-- x = (T)pci_alloc_consistent(E2,E1,E3);
-+ x = (T)pci_zalloc_consistent(E2,E1,E3);
-|
- x = kvmalloc_node(E1,E2,E3);
+ x = kvzalloc_node(E1,E2,E3);
|
msg="WARNING: kvzalloc should be used for %s, instead of kvmalloc/memset" % (x)
coccilib.report.print_report(p[0], msg)
-//-----------------------------------------------------------------
-@r8 depends on org || report@
-type T, T2;
-expression x;
-expression E1,E2,E3;
-statement S;
-position p;
-@@
-
- x = (T)pci_alloc_consistent@p(E2,E1,E3);
- if ((x==NULL) || ...) S
- memset((T2)x,0,E1);
-
-@script:python depends on org@
-p << r8.p;
-x << r8.x;
-@@
-
-msg="%s" % (x)
-msg_safe=msg.replace("[","@(").replace("]",")")
-coccilib.org.print_todo(p[0], msg_safe)
-
-@script:python depends on report@
-p << r8.p;
-x << r8.x;
-@@
-
-msg="WARNING: pci_zalloc_consistent should be used for %s, instead of pci_alloc_consistent/memset" % (x)
-coccilib.report.print_report(p[0], msg)
//-----------------------------------------------------------------
@r9 depends on org || report@
type T, T2;
dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
# Source files need to get at the userspace version of libfdt_env.h to compile
+HOST_EXTRACFLAGS := -I$(src)/libfdt
-HOSTCFLAGS_DTC := -I$(src) -I$(src)/libfdt
-
-HOSTCFLAGS_checks.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_data.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_dtc.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_flattree.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_fstree.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_livetree.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_srcpos.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_treesource.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_util.o := $(HOSTCFLAGS_DTC)
-
-HOSTCFLAGS_dtc-lexer.lex.o := $(HOSTCFLAGS_DTC)
-HOSTCFLAGS_dtc-parser.tab.o := $(HOSTCFLAGS_DTC)
+# Generated files need one more search path to include headers in source tree
+HOSTCFLAGS_dtc-lexer.lex.o := -I$(src)
+HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
# dependencies on generated files need to be listed explicitly
$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
+++ /dev/null
-#!/bin/sh
-# Copyright (C) Martin Schlemmer <azarah@nosferatu.za.org>
-# Copyright (C) 2006 Sam Ravnborg <sam@ravnborg.org>
-#
-# Released under the terms of the GNU GPL
-#
-# Generate a cpio packed initramfs. It uses gen_init_cpio to generate
-# the cpio archive, and then compresses it.
-# The script may also be used to generate the inputfile used for gen_init_cpio
-# This script assumes that gen_init_cpio is located in usr/ directory
-
-# error out on errors
-set -e
-
-usage() {
-cat << EOF
-Usage:
-$0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ...
- -o <file> Create compressed initramfs file named <file> using
- gen_init_cpio and compressor depending on the extension
- -u <uid> User ID to map to user ID 0 (root).
- <uid> is only meaningful if <cpio_source> is a
- directory. "squash" forces all files to uid 0.
- -g <gid> Group ID to map to group ID 0 (root).
- <gid> is only meaningful if <cpio_source> is a
- directory. "squash" forces all files to gid 0.
- <cpio_source> File list or directory for cpio archive.
- If <cpio_source> is a .cpio file it will be used
- as direct input to initramfs.
- -d Output the default cpio list.
-
-All options except -o and -l may be repeated and are interpreted
-sequentially and immediately. -u and -g states are preserved across
-<cpio_source> options so an explicit "-u 0 -g 0" is required
-to reset the root/group mapping.
-EOF
-}
-
-# awk style field access
-# $1 - field number; rest is argument string
-field() {
- shift $1 ; echo $1
-}
-
-list_default_initramfs() {
- # echo usr/kinit/kinit
- :
-}
-
-default_initramfs() {
- cat <<-EOF >> ${output}
- # This is a very simple, default initramfs
-
- dir /dev 0755 0 0
- nod /dev/console 0600 0 0 c 5 1
- dir /root 0700 0 0
- # file /kinit usr/kinit/kinit 0755 0 0
- # slink /init kinit 0755 0 0
- EOF
-}
-
-filetype() {
- local argv1="$1"
-
- # symlink test must come before file test
- if [ -L "${argv1}" ]; then
- echo "slink"
- elif [ -f "${argv1}" ]; then
- echo "file"
- elif [ -d "${argv1}" ]; then
- echo "dir"
- elif [ -b "${argv1}" -o -c "${argv1}" ]; then
- echo "nod"
- elif [ -p "${argv1}" ]; then
- echo "pipe"
- elif [ -S "${argv1}" ]; then
- echo "sock"
- else
- echo "invalid"
- fi
- return 0
-}
-
-list_print_mtime() {
- :
-}
-
-print_mtime() {
- local my_mtime="0"
-
- if [ -e "$1" ]; then
- my_mtime=$(find "$1" -printf "%T@\n" | sort -r | head -n 1)
- fi
-
- echo "# Last modified: ${my_mtime}" >> ${output}
- echo "" >> ${output}
-}
-
-list_parse() {
- if [ -L "$1" ]; then
- return
- fi
- echo "$1" | sed 's/:/\\:/g; s/$/ \\/'
-}
-
-# for each file print a line in following format
-# <filetype> <name> <path to file> <octal mode> <uid> <gid>
-# for links, devices etc the format differs. See gen_init_cpio for details
-parse() {
- local location="$1"
- local name="/${location#${srcdir}}"
- # change '//' into '/'
- name=$(echo "$name" | sed -e 's://*:/:g')
- local mode="$2"
- local uid="$3"
- local gid="$4"
- local ftype=$(filetype "${location}")
- # remap uid/gid to 0 if necessary
- [ "$root_uid" = "squash" ] && uid=0 || [ "$uid" -eq "$root_uid" ] && uid=0
- [ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0
- local str="${mode} ${uid} ${gid}"
-
- [ "${ftype}" = "invalid" ] && return 0
- [ "${location}" = "${srcdir}" ] && return 0
-
- case "${ftype}" in
- "file")
- str="${ftype} ${name} ${location} ${str}"
- ;;
- "nod")
- local dev=`LC_ALL=C ls -l "${location}"`
- local maj=`field 5 ${dev}`
- local min=`field 6 ${dev}`
- maj=${maj%,}
-
- [ -b "${location}" ] && dev="b" || dev="c"
-
- str="${ftype} ${name} ${str} ${dev} ${maj} ${min}"
- ;;
- "slink")
- local target=`readlink "${location}"`
- str="${ftype} ${name} ${target} ${str}"
- ;;
- *)
- str="${ftype} ${name} ${str}"
- ;;
- esac
-
- echo "${str}" >> ${output}
-
- return 0
-}
-
-unknown_option() {
- printf "ERROR: unknown option \"$arg\"\n" >&2
- printf "If the filename validly begins with '-', " >&2
- printf "then it must be prefixed\n" >&2
- printf "by './' so that it won't be interpreted as an option." >&2
- printf "\n" >&2
- usage >&2
- exit 1
-}
-
-list_header() {
- :
-}
-
-header() {
- printf "\n#####################\n# $1\n" >> ${output}
-}
-
-# process one directory (incl sub-directories)
-dir_filelist() {
- ${dep_list}header "$1"
-
- srcdir=$(echo "$1" | sed -e 's://*:/:g')
- dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n" | sort)
-
- # If $dirlist is only one line, then the directory is empty
- if [ "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
- ${dep_list}print_mtime "$1"
-
- echo "${dirlist}" | \
- while read x; do
- ${dep_list}parse ${x}
- done
- fi
-}
-
-# if only one file is specified and it is .cpio file then use it direct as fs
-# if a directory is specified then add all files in given direcotry to fs
-# if a regular file is specified assume it is in gen_initramfs format
-input_file() {
- source="$1"
- if [ -f "$1" ]; then
- ${dep_list}header "$1"
- is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\{0,1\}/cpio/')"
- if [ $2 -eq 0 -a ${is_cpio} = "cpio" ]; then
- cpio_file=$1
- echo "$1" | grep -q '^.*\.cpio\..*' && is_cpio_compressed="compressed"
- [ ! -z ${dep_list} ] && echo "$1"
- return 0
- fi
- if [ -z ${dep_list} ]; then
- print_mtime "$1" >> ${output}
- cat "$1" >> ${output}
- else
- echo "$1 \\"
- cat "$1" | while read type dir file perm ; do
- if [ "$type" = "file" ]; then
- echo "$file \\";
- fi
- done
- fi
- elif [ -d "$1" ]; then
- dir_filelist "$1"
- else
- echo " ${prog}: Cannot open '$1'" >&2
- exit 1
- fi
-}
-
-prog=$0
-root_uid=0
-root_gid=0
-dep_list=
-cpio_file=
-cpio_list=
-output="/dev/stdout"
-output_file=""
-is_cpio_compressed=
-compr="gzip -n -9 -f"
-
-arg="$1"
-case "$arg" in
- "-l") # files included in initramfs - used by kbuild
- dep_list="list_"
- echo "deps_initramfs := $0 \\"
- shift
- ;;
- "-o") # generate compressed cpio image named $1
- shift
- output_file="$1"
- cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)"
- output=${cpio_list}
- echo "$output_file" | grep -q "\.gz$" \
- && [ -x "`which gzip 2> /dev/null`" ] \
- && compr="gzip -n -9 -f"
- echo "$output_file" | grep -q "\.bz2$" \
- && [ -x "`which bzip2 2> /dev/null`" ] \
- && compr="bzip2 -9 -f"
- echo "$output_file" | grep -q "\.lzma$" \
- && [ -x "`which lzma 2> /dev/null`" ] \
- && compr="lzma -9 -f"
- echo "$output_file" | grep -q "\.xz$" \
- && [ -x "`which xz 2> /dev/null`" ] \
- && compr="xz --check=crc32 --lzma2=dict=1MiB"
- echo "$output_file" | grep -q "\.lzo$" \
- && [ -x "`which lzop 2> /dev/null`" ] \
- && compr="lzop -9 -f"
- echo "$output_file" | grep -q "\.lz4$" \
- && [ -x "`which lz4 2> /dev/null`" ] \
- && compr="lz4 -l -9 -f"
- echo "$output_file" | grep -q "\.cpio$" && compr="cat"
- shift
- ;;
-esac
-while [ $# -gt 0 ]; do
- arg="$1"
- shift
- case "$arg" in
- "-u") # map $1 to uid=0 (root)
- root_uid="$1"
- [ "$root_uid" = "-1" ] && root_uid=$(id -u || echo 0)
- shift
- ;;
- "-g") # map $1 to gid=0 (root)
- root_gid="$1"
- [ "$root_gid" = "-1" ] && root_gid=$(id -g || echo 0)
- shift
- ;;
- "-d") # display default initramfs list
- default_list="$arg"
- ${dep_list}default_initramfs
- ;;
- "-h")
- usage
- exit 0
- ;;
- *)
- case "$arg" in
- "-"*)
- unknown_option
- ;;
- *) # input file/dir - process it
- input_file "$arg" "$#"
- ;;
- esac
- ;;
- esac
-done
-
-# If output_file is set we will generate cpio archive and compress it
-# we are careful to delete tmp files
-if [ ! -z ${output_file} ]; then
- if [ -z ${cpio_file} ]; then
- timestamp=
- if test -n "$KBUILD_BUILD_TIMESTAMP"; then
- timestamp="$(date -d"$KBUILD_BUILD_TIMESTAMP" +%s || :)"
- if test -n "$timestamp"; then
- timestamp="-t $timestamp"
- fi
- fi
- cpio_tfile="$(mktemp ${TMPDIR:-/tmp}/cpiofile.XXXXXX)"
- usr/gen_init_cpio $timestamp ${cpio_list} > ${cpio_tfile}
- else
- cpio_tfile=${cpio_file}
- fi
- rm ${cpio_list}
- if [ "${is_cpio_compressed}" = "compressed" ]; then
- cat ${cpio_tfile} > ${output_file}
- else
- (cat ${cpio_tfile} | ${compr} - > ${output_file}) \
- || (rm -f ${output_file} ; false)
- fi
- [ -z ${cpio_file} ] && rm ${cpio_tfile}
-fi
-exit 0
# Kernel configuration targets
# These targets are used from top-level makefile
-PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig
+PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig \
+ build_menuconfig build_nconfig build_gconfig build_xconfig
ifdef KBUILD_KCONFIG
Kconfig := $(KBUILD_KCONFIG)
nconfig: $(obj)/nconf
$< $(silent) $(Kconfig)
+build_menuconfig: $(obj)/mconf
+
+build_nconfig: $(obj)/nconf
+
+build_gconfig: $(obj)/gconf
+
+build_xconfig: $(obj)/qconf
+
localyesconfig localmodconfig: $(obj)/conf
$(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
$(Q)if [ -f .config ]; then \
HOSTCFLAGS_nconf.o = $(shell . $(obj)/.nconf-cfg && echo $$cflags)
HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/.nconf-cfg && echo $$cflags)
-$(obj)/nconf.o: $(obj)/.nconf-cfg
+$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/.nconf-cfg
# mconf: Used for the menuconfig target based on lxdialog
hostprogs-y += mconf
$(foreach f, mconf.o $(lxdialog), \
$(eval HOSTCFLAGS_$f = $$(shell . $(obj)/.mconf-cfg && echo $$$$cflags)))
-$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/.mconf-cfg
+$(obj)/mconf.o: $(obj)/.mconf-cfg
+$(addprefix $(obj)/lxdialog/, $(lxdialog)): $(obj)/.mconf-cfg
# qconf: Used for the xconfig target based on Qt
hostprogs-y += qconf
input_mode = (enum input_mode)opt;
switch (opt) {
case syncconfig:
+ /*
+ * syncconfig is invoked during the build stage.
+ * Suppress distracting "configuration written to ..."
+ */
+ conf_set_message_callback(NULL);
sync_kconfig = 1;
break;
case defconfig:
struct dep_stack *prev, *next;
struct symbol *sym;
struct property *prop;
- struct expr *expr;
+ struct expr **expr;
} *check_top;
static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)
fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
prop->file->name, prop->lineno);
- if (stack->expr) {
- fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
- prop->file->name, prop->lineno,
+ if (sym_is_choice(sym)) {
+ fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
+ menu->file->name, menu->lineno,
sym->name ? sym->name : "<choice>",
- prop_get_type_name(prop->type),
next_sym->name ? next_sym->name : "<choice>");
- } else if (stack->prop) {
+ } else if (sym_is_choice_value(sym)) {
+ fprintf(stderr, "%s:%d:\tsymbol %s is part of choice %s\n",
+ menu->file->name, menu->lineno,
+ sym->name ? sym->name : "<choice>",
+ next_sym->name ? next_sym->name : "<choice>");
+ } else if (stack->expr == &sym->dir_dep.expr) {
fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
- } else if (sym_is_choice(sym)) {
- fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
- menu->file->name, menu->lineno,
+ } else if (stack->expr == &sym->rev_dep.expr) {
+ fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
+ prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
next_sym->name ? next_sym->name : "<choice>");
- } else if (sym_is_choice_value(sym)) {
- fprintf(stderr, "%s:%d:\tsymbol %s is part of choice %s\n",
- menu->file->name, menu->lineno,
+ } else if (stack->expr == &sym->implied.expr) {
+ fprintf(stderr, "%s:%d:\tsymbol %s is implied by %s\n",
+ prop->file->name, prop->lineno,
+ sym->name ? sym->name : "<choice>",
+ next_sym->name ? next_sym->name : "<choice>");
+ } else if (stack->expr) {
+ fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
+ prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
+ prop_get_type_name(prop->type),
next_sym->name ? next_sym->name : "<choice>");
} else {
- fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
+ fprintf(stderr, "%s:%d:\tsymbol %s %s is visible depending on %s\n",
prop->file->name, prop->lineno,
sym->name ? sym->name : "<choice>",
+ prop_get_type_name(prop->type),
next_sym->name ? next_sym->name : "<choice>");
}
}
dep_stack_insert(&stack, sym);
+ stack.expr = &sym->dir_dep.expr;
+ sym2 = sym_check_expr_deps(sym->dir_dep.expr);
+ if (sym2)
+ goto out;
+
+ stack.expr = &sym->rev_dep.expr;
sym2 = sym_check_expr_deps(sym->rev_dep.expr);
if (sym2)
goto out;
+ stack.expr = &sym->implied.expr;
+ sym2 = sym_check_expr_deps(sym->implied.expr);
+ if (sym2)
+ goto out;
+
+ stack.expr = NULL;
+
for (prop = sym->prop; prop; prop = prop->next) {
- if (prop->type == P_CHOICE || prop->type == P_SELECT)
+ if (prop->type == P_CHOICE || prop->type == P_SELECT ||
+ prop->type == P_IMPLY)
continue;
stack.prop = prop;
sym2 = sym_check_expr_deps(prop->visible.expr);
break;
if (prop->type != P_DEFAULT || sym_is_choice(sym))
continue;
- stack.expr = prop->expr;
+ stack.expr = &prop->expr;
sym2 = sym_check_expr_deps(prop->expr);
if (sym2)
break;
sym->flags &= ~SYMBOL_CHECK;
}
- if (sym2 && sym2 == sym)
- sym2 = NULL;
-
return sym2;
}
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+
+# depends on itself
+
+config A
+ bool "A"
+ depends on A
+
+# select itself
+
+config B
+ bool
+ select B
+
+# depends on each other
+
+config C1
+ bool "C1"
+ depends on C2
+
+config C2
+ bool "C2"
+ depends on C1
+
+# depends on and select
+
+config D1
+ bool "D1"
+ depends on D2
+ select D2
+
+config D2
+ bool
+
+# depends on and imply
+
+config E1
+ bool "E1"
+ depends on E2
+ imply E2
+
+config E2
+ bool "E2"
+
+# property
+
+config F1
+ bool "F1"
+ default F2
+
+config F2
+ bool "F2"
+ depends on F1
+
+# menu
+
+menu "menu depending on its content"
+ depends on G
+
+config G
+ bool "G"
+
+endmenu
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+"""
+Detect recursive dependency error.
+
+Recursive dependency should be treated as an error.
+"""
+
+def test(conf):
+ assert conf.oldaskconfig() == 1
+ assert conf.stderr_contains('expected_stderr')
--- /dev/null
+Kconfig:11:error: recursive dependency detected!
+Kconfig:11: symbol B is selected by B
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:5:error: recursive dependency detected!
+Kconfig:5: symbol A depends on A
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:17:error: recursive dependency detected!
+Kconfig:17: symbol C1 depends on C2
+Kconfig:21: symbol C2 depends on C1
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:32:error: recursive dependency detected!
+Kconfig:32: symbol D2 is selected by D1
+Kconfig:27: symbol D1 depends on D2
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:37:error: recursive dependency detected!
+Kconfig:37: symbol E1 depends on E2
+Kconfig:42: symbol E2 is implied by E1
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:60:error: recursive dependency detected!
+Kconfig:60: symbol G depends on G
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:51:error: recursive dependency detected!
+Kconfig:51: symbol F2 depends on F1
+Kconfig:49: symbol F1 default value contains F2
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+++ /dev/null
-# depends on itself
-
-config A
- bool "A"
- depends on A
-
-# select itself
-
-config B
- bool
- select B
-
-# depends on each other
-
-config C1
- bool "C1"
- depends on C2
-
-config C2
- bool "C2"
- depends on C1
-
-# depends on and select
-
-config D1
- bool "D1"
- depends on D2
- select D2
-
-config D2
- bool
-
-# depends on and imply
-# This is not recursive dependency
-
-config E1
- bool "E1"
- depends on E2
- imply E2
-
-config E2
- bool "E2"
-
-# property
-
-config F1
- bool "F1"
- default F2
-
-config F2
- bool "F2"
- depends on F1
-
-# menu
-
-menu "menu depending on its content"
- depends on G
-
-config G
- bool "G"
-
-endmenu
+++ /dev/null
-"""
-Warn recursive inclusion.
-
-Recursive dependency should be warned.
-"""
-
-def test(conf):
- assert conf.oldaskconfig() == 0
- assert conf.stderr_contains('expected_stderr')
+++ /dev/null
-Kconfig:9:error: recursive dependency detected!
-Kconfig:9: symbol B is selected by B
-For a resolution refer to Documentation/kbuild/kconfig-language.txt
-subsection "Kconfig recursive dependency limitations"
-
-Kconfig:3:error: recursive dependency detected!
-Kconfig:3: symbol A depends on A
-For a resolution refer to Documentation/kbuild/kconfig-language.txt
-subsection "Kconfig recursive dependency limitations"
-
-Kconfig:15:error: recursive dependency detected!
-Kconfig:15: symbol C1 depends on C2
-Kconfig:19: symbol C2 depends on C1
-For a resolution refer to Documentation/kbuild/kconfig-language.txt
-subsection "Kconfig recursive dependency limitations"
-
-Kconfig:30:error: recursive dependency detected!
-Kconfig:30: symbol D2 is selected by D1
-Kconfig:25: symbol D1 depends on D2
-For a resolution refer to Documentation/kbuild/kconfig-language.txt
-subsection "Kconfig recursive dependency limitations"
-
-Kconfig:59:error: recursive dependency detected!
-Kconfig:59: symbol G depends on G
-For a resolution refer to Documentation/kbuild/kconfig-language.txt
-subsection "Kconfig recursive dependency limitations"
-
-Kconfig:50:error: recursive dependency detected!
-Kconfig:50: symbol F2 depends on F1
-Kconfig:48: symbol F1 default value contains F2
${KBUILD_VMLINUX_LIBS} \
--end-group"
- ${LD} ${LDFLAGS} -r -o ${1} ${objects}
+ ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${objects}
}
# Link of vmlinux
--end-group \
${1}"
- ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} \
+ ${LD} ${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} \
-T ${lds} ${objects}
else
objects="-Wl,--whole-archive \
if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER)
break;
if (symname[0] == '.') {
- char *munged = strdup(symname);
+ char *munged = NOFAIL(strdup(symname));
munged[0] = '_';
munged[1] = toupper(munged[1]);
symname = munged;
static char *sec2annotation(const char *s)
{
if (match(s, init_exit_sections)) {
- char *p = malloc(20);
+ char *p = NOFAIL(malloc(20));
char *r = p;
*p++ = '_';
strcat(p, " ");
return r;
} else {
- return strdup("");
+ return NOFAIL(strdup(""));
}
}
{
if (buf->size - buf->pos < len) {
buf->size += len + SZ;
- buf->p = realloc(buf->p, buf->size);
+ buf->p = NOFAIL(realloc(buf->p, buf->size));
}
strncpy(buf->p + buf->pos, s, len);
buf->pos += len;
# Generate the initramfs cpio archive
hostprogs-y := gen_init_cpio
-initramfs := $(CONFIG_SHELL) $(srctree)/scripts/gen_initramfs_list.sh
+initramfs := $(CONFIG_SHELL) $(srctree)/$(src)/gen_initramfs_list.sh
ramfs-input := $(if $(filter-out "",$(CONFIG_INITRAMFS_SOURCE)), \
$(shell echo $(CONFIG_INITRAMFS_SOURCE)),-d)
ramfs-args := \
--- /dev/null
+#!/bin/sh
+# Copyright (C) Martin Schlemmer <azarah@nosferatu.za.org>
+# Copyright (C) 2006 Sam Ravnborg <sam@ravnborg.org>
+#
+# Released under the terms of the GNU GPL
+#
+# Generate a cpio packed initramfs. It uses gen_init_cpio to generate
+# the cpio archive, and then compresses it.
+# The script may also be used to generate the inputfile used for gen_init_cpio
+# This script assumes that gen_init_cpio is located in usr/ directory
+
+# error out on errors
+set -e
+
+usage() {
+cat << EOF
+Usage:
+$0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ...
+ -o <file> Create compressed initramfs file named <file> using
+ gen_init_cpio and compressor depending on the extension
+ -u <uid> User ID to map to user ID 0 (root).
+ <uid> is only meaningful if <cpio_source> is a
+ directory. "squash" forces all files to uid 0.
+ -g <gid> Group ID to map to group ID 0 (root).
+ <gid> is only meaningful if <cpio_source> is a
+ directory. "squash" forces all files to gid 0.
+ <cpio_source> File list or directory for cpio archive.
+ If <cpio_source> is a .cpio file it will be used
+ as direct input to initramfs.
+ -d Output the default cpio list.
+
+All options except -o and -l may be repeated and are interpreted
+sequentially and immediately. -u and -g states are preserved across
+<cpio_source> options so an explicit "-u 0 -g 0" is required
+to reset the root/group mapping.
+EOF
+}
+
+# awk style field access
+# $1 - field number; rest is argument string
+field() {
+ shift $1 ; echo $1
+}
+
+list_default_initramfs() {
+ # echo usr/kinit/kinit
+ :
+}
+
+default_initramfs() {
+ cat <<-EOF >> ${output}
+ # This is a very simple, default initramfs
+
+ dir /dev 0755 0 0
+ nod /dev/console 0600 0 0 c 5 1
+ dir /root 0700 0 0
+ # file /kinit usr/kinit/kinit 0755 0 0
+ # slink /init kinit 0755 0 0
+ EOF
+}
+
+filetype() {
+ local argv1="$1"
+
+ # symlink test must come before file test
+ if [ -L "${argv1}" ]; then
+ echo "slink"
+ elif [ -f "${argv1}" ]; then
+ echo "file"
+ elif [ -d "${argv1}" ]; then
+ echo "dir"
+ elif [ -b "${argv1}" -o -c "${argv1}" ]; then
+ echo "nod"
+ elif [ -p "${argv1}" ]; then
+ echo "pipe"
+ elif [ -S "${argv1}" ]; then
+ echo "sock"
+ else
+ echo "invalid"
+ fi
+ return 0
+}
+
+list_print_mtime() {
+ :
+}
+
+print_mtime() {
+ local my_mtime="0"
+
+ if [ -e "$1" ]; then
+ my_mtime=$(find "$1" -printf "%T@\n" | sort -r | head -n 1)
+ fi
+
+ echo "# Last modified: ${my_mtime}" >> ${output}
+ echo "" >> ${output}
+}
+
+list_parse() {
+ if [ -L "$1" ]; then
+ return
+ fi
+ echo "$1" | sed 's/:/\\:/g; s/$/ \\/'
+}
+
+# for each file print a line in following format
+# <filetype> <name> <path to file> <octal mode> <uid> <gid>
+# for links, devices etc the format differs. See gen_init_cpio for details
+parse() {
+ local location="$1"
+ local name="/${location#${srcdir}}"
+ # change '//' into '/'
+ name=$(echo "$name" | sed -e 's://*:/:g')
+ local mode="$2"
+ local uid="$3"
+ local gid="$4"
+ local ftype=$(filetype "${location}")
+ # remap uid/gid to 0 if necessary
+ [ "$root_uid" = "squash" ] && uid=0 || [ "$uid" -eq "$root_uid" ] && uid=0
+ [ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0
+ local str="${mode} ${uid} ${gid}"
+
+ [ "${ftype}" = "invalid" ] && return 0
+ [ "${location}" = "${srcdir}" ] && return 0
+
+ case "${ftype}" in
+ "file")
+ str="${ftype} ${name} ${location} ${str}"
+ ;;
+ "nod")
+ local dev=`LC_ALL=C ls -l "${location}"`
+ local maj=`field 5 ${dev}`
+ local min=`field 6 ${dev}`
+ maj=${maj%,}
+
+ [ -b "${location}" ] && dev="b" || dev="c"
+
+ str="${ftype} ${name} ${str} ${dev} ${maj} ${min}"
+ ;;
+ "slink")
+ local target=`readlink "${location}"`
+ str="${ftype} ${name} ${target} ${str}"
+ ;;
+ *)
+ str="${ftype} ${name} ${str}"
+ ;;
+ esac
+
+ echo "${str}" >> ${output}
+
+ return 0
+}
+
+unknown_option() {
+ printf "ERROR: unknown option \"$arg\"\n" >&2
+ printf "If the filename validly begins with '-', " >&2
+ printf "then it must be prefixed\n" >&2
+ printf "by './' so that it won't be interpreted as an option." >&2
+ printf "\n" >&2
+ usage >&2
+ exit 1
+}
+
+list_header() {
+ :
+}
+
+header() {
+ printf "\n#####################\n# $1\n" >> ${output}
+}
+
+# process one directory (incl sub-directories)
+dir_filelist() {
+ ${dep_list}header "$1"
+
+ srcdir=$(echo "$1" | sed -e 's://*:/:g')
+ dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n" | LANG=C sort)
+
+ # If $dirlist is only one line, then the directory is empty
+ if [ "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
+ ${dep_list}print_mtime "$1"
+
+ echo "${dirlist}" | \
+ while read x; do
+ ${dep_list}parse ${x}
+ done
+ fi
+}
+
+# if only one file is specified and it is .cpio file then use it direct as fs
+# if a directory is specified then add all files in given direcotry to fs
+# if a regular file is specified assume it is in gen_initramfs format
+input_file() {
+ source="$1"
+ if [ -f "$1" ]; then
+ ${dep_list}header "$1"
+ is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\{0,1\}/cpio/')"
+ if [ $2 -eq 0 -a ${is_cpio} = "cpio" ]; then
+ cpio_file=$1
+ echo "$1" | grep -q '^.*\.cpio\..*' && is_cpio_compressed="compressed"
+ [ ! -z ${dep_list} ] && echo "$1"
+ return 0
+ fi
+ if [ -z ${dep_list} ]; then
+ print_mtime "$1" >> ${output}
+ cat "$1" >> ${output}
+ else
+ echo "$1 \\"
+ cat "$1" | while read type dir file perm ; do
+ if [ "$type" = "file" ]; then
+ echo "$file \\";
+ fi
+ done
+ fi
+ elif [ -d "$1" ]; then
+ dir_filelist "$1"
+ else
+ echo " ${prog}: Cannot open '$1'" >&2
+ exit 1
+ fi
+}
+
+prog=$0
+root_uid=0
+root_gid=0
+dep_list=
+cpio_file=
+cpio_list=
+output="/dev/stdout"
+output_file=""
+is_cpio_compressed=
+compr="gzip -n -9 -f"
+
+arg="$1"
+case "$arg" in
+ "-l") # files included in initramfs - used by kbuild
+ dep_list="list_"
+ echo "deps_initramfs := $0 \\"
+ shift
+ ;;
+ "-o") # generate compressed cpio image named $1
+ shift
+ output_file="$1"
+ cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)"
+ output=${cpio_list}
+ echo "$output_file" | grep -q "\.gz$" \
+ && [ -x "`which gzip 2> /dev/null`" ] \
+ && compr="gzip -n -9 -f"
+ echo "$output_file" | grep -q "\.bz2$" \
+ && [ -x "`which bzip2 2> /dev/null`" ] \
+ && compr="bzip2 -9 -f"
+ echo "$output_file" | grep -q "\.lzma$" \
+ && [ -x "`which lzma 2> /dev/null`" ] \
+ && compr="lzma -9 -f"
+ echo "$output_file" | grep -q "\.xz$" \
+ && [ -x "`which xz 2> /dev/null`" ] \
+ && compr="xz --check=crc32 --lzma2=dict=1MiB"
+ echo "$output_file" | grep -q "\.lzo$" \
+ && [ -x "`which lzop 2> /dev/null`" ] \
+ && compr="lzop -9 -f"
+ echo "$output_file" | grep -q "\.lz4$" \
+ && [ -x "`which lz4 2> /dev/null`" ] \
+ && compr="lz4 -l -9 -f"
+ echo "$output_file" | grep -q "\.cpio$" && compr="cat"
+ shift
+ ;;
+esac
+while [ $# -gt 0 ]; do
+ arg="$1"
+ shift
+ case "$arg" in
+ "-u") # map $1 to uid=0 (root)
+ root_uid="$1"
+ [ "$root_uid" = "-1" ] && root_uid=$(id -u || echo 0)
+ shift
+ ;;
+ "-g") # map $1 to gid=0 (root)
+ root_gid="$1"
+ [ "$root_gid" = "-1" ] && root_gid=$(id -g || echo 0)
+ shift
+ ;;
+ "-d") # display default initramfs list
+ default_list="$arg"
+ ${dep_list}default_initramfs
+ ;;
+ "-h")
+ usage
+ exit 0
+ ;;
+ *)
+ case "$arg" in
+ "-"*)
+ unknown_option
+ ;;
+ *) # input file/dir - process it
+ input_file "$arg" "$#"
+ ;;
+ esac
+ ;;
+ esac
+done
+
+# If output_file is set we will generate cpio archive and compress it
+# we are careful to delete tmp files
+if [ ! -z ${output_file} ]; then
+ if [ -z ${cpio_file} ]; then
+ timestamp=
+ if test -n "$KBUILD_BUILD_TIMESTAMP"; then
+ timestamp="$(date -d"$KBUILD_BUILD_TIMESTAMP" +%s || :)"
+ if test -n "$timestamp"; then
+ timestamp="-t $timestamp"
+ fi
+ fi
+ cpio_tfile="$(mktemp ${TMPDIR:-/tmp}/cpiofile.XXXXXX)"
+ usr/gen_init_cpio $timestamp ${cpio_list} > ${cpio_tfile}
+ else
+ cpio_tfile=${cpio_file}
+ fi
+ rm ${cpio_list}
+ if [ "${is_cpio_compressed}" = "compressed" ]; then
+ cat ${cpio_tfile} > ${output_file}
+ else
+ (cat ${cpio_tfile} | ${compr} - > ${output_file}) \
+ || (rm -f ${output_file} ; false)
+ fi
+ [ -z ${cpio_file} ] && rm ${cpio_tfile}
+fi
+exit 0
.incbin __stringify(INITRAMFS_IMAGE)
__irf_end:
.section .init.ramfs.info,"a"
-.globl VMLINUX_SYMBOL(__initramfs_size)
-VMLINUX_SYMBOL(__initramfs_size):
+.globl __initramfs_size
+__initramfs_size:
#ifdef CONFIG_64BIT
.quad __irf_end - __irf_start
#else
projects / linux-2.6-microblaze.git / commitdiff