summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-06 11:00:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-06 11:00:15 -0700
commit8715ee75fe6fa3aed367f28aa7a3655e6a8e4688 (patch)
tree192c25a109a73ca67d4483d89ee576660bb5f29c
parent126f7051b4daa3716d9af2851dcb55316e4c2b25 (diff)
parent1f2f01b122d7c78a9e842a126ef168afb279552b (diff)
Merge tag 'kbuild-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada: - improve fixdep to coalesce consecutive slashes in dep-files - fix some issues of the maintainer string generation in deb-pkg script - remove unused CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX and clean-up several tools and linker scripts - clean-up modpost - allow to enable the dead code/data elimination for PowerPC in EXPERT mode - improve two coccinelle scripts for better performance - pass endianness and machine size flags to sparse for all architecture - misc fixes * tag 'kbuild-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits) kbuild: add machine size to CHECKFLAGS kbuild: add endianness flag to CHEKCFLAGS kbuild: $(CHECK) doesnt need NOSTDINC_FLAGS twice scripts: Fixed printf format mismatch scripts/tags.sh: use `find` for $ALLSOURCE_ARCHS generation coccinelle: deref_null: improve performance coccinelle: mini_lock: improve performance powerpc: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selected kbuild: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selectable if enabled kbuild: LD_DEAD_CODE_DATA_ELIMINATION no -ffunction-sections/-fdata-sections for module build kbuild: Fix asm-generic/vmlinux.lds.h for LD_DEAD_CODE_DATA_ELIMINATION modpost: constify *modname function argument where possible modpost: remove redundant is_vmlinux() test modpost: use strstarts() helper more widely modpost: pass struct elf_info pointer to get_modinfo() checkpatch: remove VMLINUX_SYMBOL() check vmlinux.lds.h: remove no-op macro VMLINUX_SYMBOL() kbuild: remove CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX export.h: remove code for prefixing symbols with underscore depmod.sh: remove symbol prefix support ...
-rw-r--r--Makefile13
-rw-r--r--arch/Kconfig21
-rw-r--r--arch/alpha/Makefile2
-rw-r--r--arch/arm/Makefile2
-rw-r--r--arch/arm64/Makefile2
-rw-r--r--arch/ia64/Makefile2
-rw-r--r--arch/mips/Makefile3
-rw-r--r--arch/openrisc/Makefile1
-rw-r--r--arch/parisc/Makefile4
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S22
-rw-r--r--arch/s390/Makefile2
-rw-r--r--arch/sparc/Makefile2
-rw-r--r--arch/x86/Makefile2
-rw-r--r--include/asm-generic/export.h34
-rw-r--r--include/asm-generic/vmlinux.lds.h334
-rw-r--r--include/linux/export.h16
-rw-r--r--init/Kconfig27
-rw-r--r--scripts/Makefile.build9
-rwxr-xr-xscripts/adjust_autoksyms.sh3
-rw-r--r--scripts/basic/fixdep.c6
-rwxr-xr-xscripts/checkpatch.pl10
-rw-r--r--scripts/coccinelle/locks/mini_lock.cocci6
-rw-r--r--scripts/coccinelle/null/deref_null.cocci40
-rwxr-xr-xscripts/depmod.sh25
-rw-r--r--scripts/genksyms/genksyms.c11
-rw-r--r--scripts/kallsyms.c49
-rwxr-xr-xscripts/link-vmlinux.sh4
-rw-r--r--scripts/mod/modpost.c97
-rwxr-xr-xscripts/package/mkdebian27
-rw-r--r--scripts/recordmcount.c2
-rw-r--r--scripts/recordmcount.h2
-rwxr-xr-xscripts/tags.sh11
33 files changed, 349 insertions, 443 deletions
diff --git a/Makefile b/Makefile
index 554dcaddbce4..0d5cdaa72d5f 100644
--- a/Makefile
+++ b/Makefile
@@ -802,13 +802,12 @@ KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
endif
ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
-KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,)
-KBUILD_CFLAGS += $(call cc-option,-fdata-sections,)
+KBUILD_CFLAGS_KERNEL += $(call cc-option,-ffunction-sections,)
+KBUILD_CFLAGS_KERNEL += $(call cc-option,-fdata-sections,)
endif
# arch Makefile may override CC so keep this after arch Makefile is included
NOSTDINC_FLAGS += -nostdinc -isystem $(call shell-cached,$(CC) -print-file-name=include)
-CHECKFLAGS += $(NOSTDINC_FLAGS)
# warn about C99 declaration after statement
KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
@@ -878,6 +877,12 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
LDFLAGS_vmlinux += $(call ld-option, -X,)
endif
+# insure the checker run with the right endianness
+CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
+
+# the checker needs the correct machine size
+CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
+
# Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the command line or
# set in the environment
@@ -1763,7 +1768,7 @@ quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))
# Run depmod only if we have System.map and depmod is executable
quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
- $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))"
+ $(KERNELRELEASE)
# Create temporary dir for module support files
# clean it up only when building all modules
diff --git a/arch/Kconfig b/arch/Kconfig
index b695a3e3e922..8a7f7e1f2ca7 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -597,21 +597,6 @@ config CC_STACKPROTECTOR_AUTO
endchoice
-config LD_DEAD_CODE_DATA_ELIMINATION
- bool
- help
- Select this if the architecture wants to do dead code and
- data elimination with the linker by compiling with
- -ffunction-sections -fdata-sections and linking with
- --gc-sections.
-
- This requires that the arch annotates or otherwise protects
- its external entry points from being discarded. Linker scripts
- must also merge .text.*, .data.*, and .bss.* correctly into
- output sections. Care must be taken not to pull in unrelated
- sections (e.g., '.text.init'). Typically '.' in section names
- is used to distinguish them from label names / C identifiers.
-
config HAVE_ARCH_WITHIN_STACK_FRAMES
bool
help
@@ -687,12 +672,6 @@ config MODULES_USE_ELF_REL
Modules only use ELF REL relocations. Modules with ELF RELA
relocations will give an error.
-config HAVE_UNDERSCORE_SYMBOL_PREFIX
- bool
- help
- Some architectures generate an _ in front of C symbols; things like
- module loading and assembly files need to know about this.
-
config HAVE_IRQ_EXIT_ON_IRQ_STACK
bool
help
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
index 2cc3cc519c54..c5ec8c09c0c6 100644
--- a/arch/alpha/Makefile
+++ b/arch/alpha/Makefile
@@ -11,7 +11,7 @@
NM := $(NM) -B
LDFLAGS_vmlinux := -static -N #-relax
-CHECKFLAGS += -D__alpha__ -m64
+CHECKFLAGS += -D__alpha__
cflags-y := -pipe -mno-fp-regs -ffixed-8
cflags-y += $(call cc-option, -fno-jump-tables)
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index e4e537f27339..f32a5468d79f 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -135,7 +135,7 @@ endif
KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
-CHECKFLAGS += -D__arm__ -m32
+CHECKFLAGS += -D__arm__
#Default value
head-y := arch/arm/kernel/head$(MMUEXT).o
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 87f7d2f9f17c..3c353b4715dc 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -78,7 +78,7 @@ LDFLAGS += -maarch64linux
UTS_MACHINE := aarch64
endif
-CHECKFLAGS += -D__aarch64__ -m64
+CHECKFLAGS += -D__aarch64__
ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)
KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm64/kernel/module.lds
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 2dd7f519ad0b..45f59808b842 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -18,7 +18,7 @@ READELF := $(CROSS_COMPILE)readelf
export AWK
-CHECKFLAGS += -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
+CHECKFLAGS += -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
OBJCOPYFLAGS := --strip-all
LDFLAGS_vmlinux := -static
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 5e9fce076ab6..e2122cca4ae2 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -309,9 +309,6 @@ ifdef CONFIG_MIPS
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
-ifdef CONFIG_64BIT
-CHECKFLAGS += -m64
-endif
endif
OBJCOPYFLAGS += --remove-section=.reginfo
diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index cf8802962864..89076a66eee2 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -25,7 +25,6 @@ LDFLAGS_vmlinux :=
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
KBUILD_CFLAGS += -pipe -ffixed-r10 -D__linux__
-CHECKFLAGS += -mbig-endian
ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 34ac503e28ad..714284ea6cc2 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -22,13 +22,13 @@ KBUILD_IMAGE := vmlinuz
KBUILD_DEFCONFIG := default_defconfig
NM = sh $(srctree)/arch/parisc/nm
-CHECKFLAGS += -D__hppa__=1 -mbig-endian
+CHECKFLAGS += -D__hppa__=1
LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
export LIBGCC
ifdef CONFIG_64BIT
UTS_MACHINE := parisc64
-CHECKFLAGS += -D__LP64__=1 -m64
+CHECKFLAGS += -D__LP64__=1
CC_ARCHES = hppa64
LD_BFD := elf64-hppa-linux
else # 32-bit
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index f674006dea2f..9c0ee1859323 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -198,6 +198,7 @@ config PPC
select HAVE_KPROBES
select HAVE_KPROBES_ON_FTRACE
select HAVE_KRETPROBES
+ select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index b8d82678f8b4..dd10e6f1d1b7 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -89,7 +89,7 @@ SECTIONS
*/
.text BLOCK(0) : AT(ADDR(.text) - LOAD_OFFSET) {
#ifdef CONFIG_LD_HEAD_STUB_CATCH
- *(.linker_stub_catch);
+ KEEP(*(.linker_stub_catch));
. = . ;
#endif
@@ -98,7 +98,7 @@ SECTIONS
ALIGN_FUNCTION();
#endif
/* careful! __ftr_alt_* sections need to be close to .text */
- *(.text.hot .text .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
+ *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
SCHED_TEXT
CPUIDLE_TEXT
LOCK_TEXT
@@ -184,10 +184,10 @@ SECTIONS
.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
INIT_DATA
__vtop_table_begin = .;
- *(.vtop_fixup);
+ KEEP(*(.vtop_fixup));
__vtop_table_end = .;
__ptov_table_begin = .;
- *(.ptov_fixup);
+ KEEP(*(.ptov_fixup));
__ptov_table_end = .;
}
@@ -208,26 +208,26 @@ SECTIONS
. = ALIGN(8);
__ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
__start___ftr_fixup = .;
- *(__ftr_fixup)
+ KEEP(*(__ftr_fixup))
__stop___ftr_fixup = .;
}
. = ALIGN(8);
__mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) {
__start___mmu_ftr_fixup = .;
- *(__mmu_ftr_fixup)
+ KEEP(*(__mmu_ftr_fixup))
__stop___mmu_ftr_fixup = .;
}
. = ALIGN(8);
__lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
__start___lwsync_fixup = .;
- *(__lwsync_fixup)
+ KEEP(*(__lwsync_fixup))
__stop___lwsync_fixup = .;
}
#ifdef CONFIG_PPC64
. = ALIGN(8);
__fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
__start___fw_ftr_fixup = .;
- *(__fw_ftr_fixup)
+ KEEP(*(__fw_ftr_fixup))
__stop___fw_ftr_fixup = .;
}
#endif
@@ -240,7 +240,7 @@ SECTIONS
. = ALIGN(8);
.machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) {
__machine_desc_start = . ;
- *(.machine.desc)
+ KEEP(*(.machine.desc))
__machine_desc_end = . ;
}
#ifdef CONFIG_RELOCATABLE
@@ -288,7 +288,7 @@ SECTIONS
.data : AT(ADDR(.data) - LOAD_OFFSET) {
DATA_DATA
*(.data.rel*)
- *(.sdata)
+ *(SDATA_MAIN)
*(.sdata2)
*(.got.plt) *(.got)
*(.plt)
@@ -303,7 +303,7 @@ SECTIONS
.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
__start_opd = .;
- *(.opd)
+ KEEP(*(.opd))
__end_opd = .;
}
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index c79936d02f7b..68a690442be0 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -18,7 +18,7 @@ KBUILD_CFLAGS += -m64
KBUILD_AFLAGS += -m64
UTS_MACHINE := s390x
STACK_SIZE := 16384
-CHECKFLAGS += -D__s390__ -D__s390x__ -mbig-endian
+CHECKFLAGS += -D__s390__ -D__s390x__
export LD_BFD
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index edac927e4952..966a13d2b127 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -39,7 +39,7 @@ else
# sparc64
#
-CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
+CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__
LDFLAGS := -m elf64_sparc
export BITS := 64
UTS_MACHINE := sparc64
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 60135cbd905c..f0a6ea22429d 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -94,7 +94,7 @@ ifeq ($(CONFIG_X86_32),y)
else
BITS := 64
UTS_MACHINE := x86_64
- CHECKFLAGS += -D__x86_64__ -m64
+ CHECKFLAGS += -D__x86_64__
biarch := -m64
KBUILD_AFLAGS += -m64
diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h
index 719db1968d81..68efb950a918 100644
--- a/include/asm-generic/export.h
+++ b/include/asm-generic/export.h
@@ -19,42 +19,32 @@
#define KCRC_ALIGN 4
#endif
-#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
-#define KSYM(name) _##name
-#else
-#define KSYM(name) name
-#endif
-
/*
* note on .section use: @progbits vs %progbits nastiness doesn't matter,
* since we immediately emit into those sections anyway.
*/
.macro ___EXPORT_SYMBOL name,val,sec
#ifdef CONFIG_MODULES
- .globl KSYM(__ksymtab_\name)
+ .globl __ksymtab_\name
.section ___ksymtab\sec+\name,"a"
.balign KSYM_ALIGN
-KSYM(__ksymtab_\name):
- __put \val, KSYM(__kstrtab_\name)
+__ksymtab_\name:
+ __put \val, __kstrtab_\name
.previous
.section __ksymtab_strings,"a"
-KSYM(__kstrtab_\name):
-#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
- .asciz "_\name"
-#else
+__kstrtab_\name:
.asciz "\name"
-#endif
.previous
#ifdef CONFIG_MODVERSIONS
.section ___kcrctab\sec+\name,"a"
.balign KCRC_ALIGN
-KSYM(__kcrctab_\name):
+__kcrctab_\name:
#if defined(CONFIG_MODULE_REL_CRCS)
- .long KSYM(__crc_\name) - .
+ .long __crc_\name - .
#else
- .long KSYM(__crc_\name)
+ .long __crc_\name
#endif
- .weak KSYM(__crc_\name)
+ .weak __crc_\name
.previous
#endif
#endif
@@ -84,12 +74,12 @@ KSYM(__kcrctab_\name):
#endif
#define EXPORT_SYMBOL(name) \
- __EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)),)
+ __EXPORT_SYMBOL(name, KSYM_FUNC(name),)
#define EXPORT_SYMBOL_GPL(name) \
- __EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)), _gpl)
+ __EXPORT_SYMBOL(name, KSYM_FUNC(name), _gpl)
#define EXPORT_DATA_SYMBOL(name) \
- __EXPORT_SYMBOL(name, KSYM(name),)
+ __EXPORT_SYMBOL(name, name,)
#define EXPORT_DATA_SYMBOL_GPL(name) \
- __EXPORT_SYMBOL(name, KSYM(name),_gpl)
+ __EXPORT_SYMBOL(name, name,_gpl)
#endif
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index af240573e482..e373e2e10f6a 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -64,15 +64,24 @@
* generates .data.identifier sections, which need to be pulled in with
* .data. We don't want to pull in .data..other sections, which Linux
* has defined. Same for text and bss.
+ *
+ * RODATA_MAIN is not used because existing code already defines .rodata.x
+ * sections to be brought in with rodata.
*/
#ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
#define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
#define DATA_MAIN .data .data.[0-9a-zA-Z_]*
+#define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]*
+#define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]*
#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
+#define SBSS_MAIN .sbss .sbss.[0-9a-zA-Z_]*
#else
#define TEXT_MAIN .text
#define DATA_MAIN .data
+#define SDATA_MAIN .sdata
+#define RODATA_MAIN .rodata
#define BSS_MAIN .bss
+#define SBSS_MAIN .sbss
#endif
/*
@@ -104,66 +113,66 @@
#ifdef CONFIG_FTRACE_MCOUNT_RECORD
#define MCOUNT_REC() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_mcount_loc) = .; \
- *(__mcount_loc) \
- VMLINUX_SYMBOL(__stop_mcount_loc) = .;
+ __start_mcount_loc = .; \
+ KEEP(*(__mcount_loc)) \
+ __stop_mcount_loc = .;
#else
#define MCOUNT_REC()
#endif
#ifdef CONFIG_TRACE_BRANCH_PROFILING
-#define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \
- *(_ftrace_annotated_branch) \
- VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .;
+#define LIKELY_PROFILE() __start_annotated_branch_profile = .; \
+ KEEP(*(_ftrace_annotated_branch)) \
+ __stop_annotated_branch_profile = .;
#else
#define LIKELY_PROFILE()
#endif
#ifdef CONFIG_PROFILE_ALL_BRANCHES
-#define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \
- *(_ftrace_branch) \
- VMLINUX_SYMBOL(__stop_branch_profile) = .;
+#define BRANCH_PROFILE() __start_branch_profile = .; \
+ KEEP(*(_ftrace_branch)) \
+ __stop_branch_profile = .;
#else
#define BRANCH_PROFILE()
#endif
#ifdef CONFIG_KPROBES
#define KPROBE_BLACKLIST() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_kprobe_blacklist) = .; \
+ __start_kprobe_blacklist = .; \
KEEP(*(_kprobe_blacklist)) \
- VMLINUX_SYMBOL(__stop_kprobe_blacklist) = .;
+ __stop_kprobe_blacklist = .;
#else
#define KPROBE_BLACKLIST()
#endif
#ifdef CONFIG_FUNCTION_ERROR_INJECTION
#define ERROR_INJECT_WHITELIST() STRUCT_ALIGN(); \
- VMLINUX_SYMBOL(__start_error_injection_whitelist) = .;\
+ __start_error_injection_whitelist = .; \
KEEP(*(_error_injection_whitelist)) \
- VMLINUX_SYMBOL(__stop_error_injection_whitelist) = .;
+ __stop_error_injection_whitelist = .;
#else
#define ERROR_INJECT_WHITELIST()
#endif
#ifdef CONFIG_EVENT_TRACING
#define FTRACE_EVENTS() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_ftrace_events) = .; \
+ __start_ftrace_events = .; \
KEEP(*(_ftrace_events)) \
- VMLINUX_SYMBOL(__stop_ftrace_events) = .; \
- VMLINUX_SYMBOL(__start_ftrace_eval_maps) = .; \
+ __stop_ftrace_events = .; \
+ __start_ftrace_eval_maps = .; \
KEEP(*(_ftrace_eval_map)) \
- VMLINUX_SYMBOL(__stop_ftrace_eval_maps) = .;
+ __stop_ftrace_eval_maps = .;
#else
#define FTRACE_EVENTS()
#endif
#ifdef CONFIG_TRACING
-#define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \
+#define TRACE_PRINTKS() __start___trace_bprintk_fmt = .; \
KEEP(*(__trace_printk_fmt)) /* Trace_printk fmt' pointer */ \
- VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .;
-#define TRACEPOINT_STR() VMLINUX_SYMBOL(__start___tracepoint_str) = .; \
+ __stop___trace_bprintk_fmt = .;
+#define TRACEPOINT_STR() __start___tracepoint_str = .; \
KEEP(*(__tracepoint_str)) /* Trace_printk fmt' pointer */ \
- VMLINUX_SYMBOL(__stop___tracepoint_str) = .;
+ __stop___tracepoint_str = .;
#else
#define TRACE_PRINTKS()
#define TRACEPOINT_STR()
@@ -171,27 +180,27 @@
#ifdef CONFIG_FTRACE_SYSCALLS
#define TRACE_SYSCALLS() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \
+ __start_syscalls_metadata = .; \
KEEP(*(__syscalls_metadata)) \
- VMLINUX_SYMBOL(__stop_syscalls_metadata) = .;
+ __stop_syscalls_metadata = .;
#else
#define TRACE_SYSCALLS()
#endif
#ifdef CONFIG_BPF_EVENTS
#define BPF_RAW_TP() STRUCT_ALIGN(); \
- VMLINUX_SYMBOL(__start__bpf_raw_tp) = .; \
+ __start__bpf_raw_tp = .; \
KEEP(*(__bpf_raw_tp_map)) \
- VMLINUX_SYMBOL(__stop__bpf_raw_tp) = .;
+ __stop__bpf_raw_tp = .;
#else
#define BPF_RAW_TP()
#endif
#ifdef CONFIG_SERIAL_EARLYCON
#define EARLYCON_TABLE() . = ALIGN(8); \
- VMLINUX_SYMBOL(__earlycon_table) = .; \
+ __earlycon_table = .; \
KEEP(*(__earlycon_table)) \
- VMLINUX_SYMBOL(__earlycon_table_end) = .;
+ __earlycon_table_end = .;
#else
#define EARLYCON_TABLE()
#endif
@@ -202,7 +211,7 @@
#define _OF_TABLE_0(name)
#define _OF_TABLE_1(name) \
. = ALIGN(8); \
- VMLINUX_SYMBOL(__##name##_of_table) = .; \
+ __##name##_of_table = .; \
KEEP(*(__##name##_of_table)) \
KEEP(*(__##name##_of_table_end))
@@ -217,18 +226,18 @@
#ifdef CONFIG_ACPI
#define ACPI_PROBE_TABLE(name) \
. = ALIGN(8); \
- VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \
+ __##name##_acpi_probe_table = .; \
KEEP(*(__##name##_acpi_probe_table)) \
- VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .;
+ __##name##_acpi_probe_table_end = .;
#else
#define ACPI_PROBE_TABLE(name)
#endif
#define KERNEL_DTB() \
STRUCT_ALIGN(); \
- VMLINUX_SYMBOL(__dtb_start) = .; \
+ __dtb_start = .; \
KEEP(*(.dtb.init.rodata)) \
- VMLINUX_SYMBOL(__dtb_end) = .;
+ __dtb_end = .;
/*
* .data section
@@ -238,23 +247,23 @@
*(DATA_MAIN) \
*(.ref.data) \
*(.data..shared_aligned) /* percpu related */ \
- MEM_KEEP(init.data) \
- MEM_KEEP(exit.data) \
+ MEM_KEEP(init.data*) \
+ MEM_KEEP(exit.data*) \
*(.data.unlikely) \
- VMLINUX_SYMBOL(__start_once) = .; \
+ __start_once = .; \
*(.data.once) \
- VMLINUX_SYMBOL(__end_once) = .; \
+ __end_once = .; \
STRUCT_ALIGN(); \
*(__tracepoints) \
/* implement dynamic printk debug */ \
. = ALIGN(8); \
- VMLINUX_SYMBOL(__start___jump_table) = .; \
+ __start___jump_table = .; \
KEEP(*(__jump_table)) \
- VMLINUX_SYMBOL(__stop___jump_table) = .; \
+ __stop___jump_table = .; \
. = ALIGN(8); \
- VMLINUX_SYMBOL(__start___verbose) = .; \
+ __start___verbose = .; \
KEEP(*(__verbose)) \
- VMLINUX_SYMBOL(__stop___verbose) = .; \
+ __stop___verbose = .; \
LIKELY_PROFILE() \
BRANCH_PROFILE() \
TRACE_PRINTKS() \
@@ -266,10 +275,10 @@
*/
#define NOSAVE_DATA \
. = ALIGN(PAGE_SIZE); \
- VMLINUX_SYMBOL(__nosave_begin) = .; \
+ __nosave_begin = .; \
*(.data..nosave) \
. = ALIGN(PAGE_SIZE); \
- VMLINUX_SYMBOL(__nosave_end) = .;
+ __nosave_end = .;
#define PAGE_ALIGNED_DATA(page_align) \
. = ALIGN(page_align); \
@@ -286,13 +295,13 @@
#define INIT_TASK_DATA(align) \
. = ALIGN(align); \
- VMLINUX_SYMBOL(__start_init_task) = .; \
- VMLINUX_SYMBOL(init_thread_union) = .; \
- VMLINUX_SYMBOL(init_stack) = .; \
- *(.data..init_task) \
- *(.data..init_thread_info) \
- . = VMLINUX_SYMBOL(__start_init_task) + THREAD_SIZE; \
- VMLINUX_SYMBOL(__end_init_task) = .;
+ __start_init_task = .; \
+ init_thread_union = .; \
+ init_stack = .; \
+ KEEP(*(.data..init_task)) \
+ KEEP(*(.data..init_thread_info)) \
+ . = __start_init_task + THREAD_SIZE; \
+ __end_init_task = .;
/*
* Allow architectures to handle ro_after_init data on their
@@ -300,9 +309,9 @@
*/
#ifndef RO_AFTER_INIT_DATA
#define RO_AFTER_INIT_DATA \
- VMLINUX_SYMBOL(__start_ro_after_init) = .; \
+ __start_ro_after_init = .; \
*(.data..ro_after_init) \
- VMLINUX_SYMBOL(__end_ro_after_init) = .;
+ __end_ro_after_init = .;
#endif
/*
@@ -311,14 +320,14 @@
#define RO_DATA_SECTION(align) \
. = ALIGN((align)); \
.rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_rodata) = .; \
+ __start_rodata = .; \
*(.rodata) *(.rodata.*) \
RO_AFTER_INIT_DATA /* Read only after init */ \
KEEP(*(__vermagic)) /* Kernel version magic */ \
. = ALIGN(8); \
- VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \
+ __start___tracepoints_ptrs = .; \
KEEP(*(__tracepoints_ptrs)) /* Tracepoints: pointer array */ \
- VMLINUX_SYMBOL(__stop___tracepoints_ptrs) = .; \
+ __stop___tracepoints_ptrs = .; \
*(__tracepoints_strings)/* Tracepoints: strings */ \
} \
\
@@ -328,109 +337,109 @@
\
/* PCI quirks */ \
.pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
+ __start_pci_fixups_early = .; \
KEEP(*(.pci_fixup_early)) \
- VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
+ __end_pci_fixups_early = .; \
+ __start_pci_fixups_header = .; \
KEEP(*(.pci_fixup_header)) \
- VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
+ __end_pci_fixups_header = .; \
+ __start_pci_fixups_final = .; \
KEEP(*(.pci_fixup_final)) \
- VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
+ __end_pci_fixups_final = .; \
+ __start_pci_fixups_enable = .; \
KEEP(*(.pci_fixup_enable)) \
- VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
+ __end_pci_fixups_enable = .; \
+ __start_pci_fixups_resume = .; \
KEEP(*(.pci_fixup_resume)) \
- VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \
+ __end_pci_fixups_resume = .; \
+ __start_pci_fixups_resume_early = .; \
KEEP(*(.pci_fixup_resume_early)) \
- VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \
+ __end_pci_fixups_resume_early = .; \
+ __start_pci_fixups_suspend = .; \
KEEP(*(.pci_fixup_suspend)) \
- VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_suspend_late) = .; \
+ __end_pci_fixups_suspend = .; \
+ __start_pci_fixups_suspend_late = .; \
KEEP(*(.pci_fixup_suspend_late)) \
- VMLINUX_SYMBOL(__end_pci_fixups_suspend_late) = .; \
+ __end_pci_fixups_suspend_late = .; \
} \
\
/* Built-in firmware blobs */ \
.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_builtin_fw) = .; \
+ __start_builtin_fw = .; \
KEEP(*(.builtin_fw)) \
- VMLINUX_SYMBOL(__end_builtin_fw) = .; \
+ __end_builtin_fw = .; \
} \
\
TRACEDATA \
\
/* Kernel symbol table: Normal symbols */ \
__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ksymtab) = .; \
+ __start___ksymtab = .; \
KEEP(*(SORT(___ksymtab+*))) \
- VMLINUX_SYMBOL(__stop___ksymtab) = .; \
+ __stop___ksymtab = .; \
} \
\
/* Kernel symbol table: GPL-only symbols */ \
__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
+ __start___ksymtab_gpl = .; \
KEEP(*(SORT(___ksymtab_gpl+*))) \
- VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
+ __stop___ksymtab_gpl = .; \
} \
\
/* Kernel symbol table: Normal unused symbols */ \
__ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
+ __start___ksymtab_unused = .; \
KEEP(*(SORT(___ksymtab_unused+*))) \
- VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
+ __stop___ksymtab_unused = .; \
} \
\
/* Kernel symbol table: GPL-only unused symbols */ \
__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
+ __start___ksymtab_unused_gpl = .; \
KEEP(*(SORT(___ksymtab_unused_gpl+*))) \
- VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
+ __stop___ksymtab_unused_gpl = .; \
} \
\
/* Kernel symbol table: GPL-future-only symbols */ \
__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
+ __start___ksymtab_gpl_future = .; \
KEEP(*(SORT(___ksymtab_gpl_future+*))) \
- VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
+ __stop___ksymtab_gpl_future = .; \
} \
\
/* Kernel symbol table: Normal symbols */ \
__kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___kcrctab) = .; \
+ __start___kcrctab = .; \
KEEP(*(SORT(___kcrctab+*))) \
- VMLINUX_SYMBOL(__stop___kcrctab) = .; \
+ __stop___kcrctab = .; \
} \
\
/* Kernel symbol table: GPL-only symbols */ \
__kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
+ __start___kcrctab_gpl = .; \
KEEP(*(SORT(___kcrctab_gpl+*))) \
- VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
+ __stop___kcrctab_gpl = .; \
} \
\
/* Kernel symbol table: Normal unused symbols */ \
__kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
+ __start___kcrctab_unused = .; \
KEEP(*(SORT(___kcrctab_unused+*))) \
- VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
+ __stop___kcrctab_unused = .; \
} \
\
/* Kernel symbol table: GPL-only unused symbols */ \
__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
+ __start___kcrctab_unused_gpl = .; \
KEEP(*(SORT(___kcrctab_unused_gpl+*))) \
- VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
+ __stop___kcrctab_unused_gpl = .; \
} \
\
/* Kernel symbol table: GPL-future-only symbols */ \
__kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
+ __start___kcrctab_gpl_future = .; \
KEEP(*(SORT(___kcrctab_gpl_future+*))) \
- VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
+ __stop___kcrctab_gpl_future = .; \
} \
\
/* Kernel symbol table: strings */ \
@@ -447,18 +456,18 @@
\
/* Built-in module parameters. */ \
__param : AT(ADDR(__param) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___param) = .; \
+ __start___param = .; \
KEEP(*(__param)) \
- VMLINUX_SYMBOL(__stop___param) = .; \
+ __stop___param = .; \
} \
\
/* Built-in module versions. */ \
__modver : AT(ADDR(__modver) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___modver) = .; \
+ __start___modver = .; \
KEEP(*(__modver)) \
- VMLINUX_SYMBOL(__stop___modver) = .; \
+ __stop___modver = .; \
. = ALIGN((align)); \
- VMLINUX_SYMBOL(__end_rodata) = .; \
+ __end_rodata = .; \
} \
. = ALIGN((align));
@@ -469,9 +478,9 @@
#define SECURITY_INIT \
.security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__security_initcall_start) = .; \
+ __security_initcall_start = .; \
KEEP(*(.security_initcall.init)) \
- VMLINUX_SYMBOL(__security_initcall_end) = .; \
+ __security_initcall_end = .; \
}
/*
@@ -487,58 +496,58 @@
*(.text.hot TEXT_MAIN .text.fixup .text.unlikely) \
*(.text..refcount) \
*(.ref.text) \
- MEM_KEEP(init.text) \
- MEM_KEEP(exit.text) \
+ MEM_KEEP(init.text*) \
+ MEM_KEEP(exit.text*) \
/* sched.text is aling to function alignment to secure we have same
* address even at second ld pass when generating System.map */
#define SCHED_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__sched_text_start) = .; \
+ __sched_text_start = .; \
*(.sched.text) \
- VMLINUX_SYMBOL(__sched_text_end) = .;
+ __sched_text_end = .;
/* spinlock.text is aling to function alignment to secure we have same
* address even at second ld pass when generating System.map */
#define LOCK_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__lock_text_start) = .; \
+ __lock_text_start = .; \
*(.spinlock.text) \
- VMLINUX_SYMBOL(__lock_text_end) = .;
+ __lock_text_end = .;
#define CPUIDLE_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__cpuidle_text_start) = .; \
+ __cpuidle_text_start = .; \
*(.cpuidle.text) \
- VMLINUX_SYMBOL(__cpuidle_text_end) = .;
+ __cpuidle_text_end = .;
#define KPROBES_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__kprobes_text_start) = .; \
+ __kprobes_text_start = .; \
*(.kprobes.text) \
- VMLINUX_SYMBOL(__kprobes_text_end) = .;
+ __kprobes_text_end = .;
#define ENTRY_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__entry_text_start) = .; \
+ __entry_text_start = .; \
*(.entry.text) \
- VMLINUX_SYMBOL(__entry_text_end) = .;
+ __entry_text_end = .;
#define IRQENTRY_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__irqentry_text_start) = .; \
+ __irqentry_text_start = .; \
*(.irqentry.text) \
- VMLINUX_SYMBOL(__irqentry_text_end) = .;
+ __irqentry_text_end = .;
#define SOFTIRQENTRY_TEXT \
ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__softirqentry_text_start) = .; \
+ __softirqentry_text_start = .; \
*(.softirqentry.text) \
- VMLINUX_SYMBOL(__softirqentry_text_end) = .;
+ __softirqentry_text_end = .;
/* Section used for early init (in .S files) */
-#define HEAD_TEXT *(.head.text)
+#define HEAD_TEXT KEEP(*(.head.text))
#define HEAD_TEXT_SECTION \
.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \
@@ -551,9 +560,9 @@
#define EXCEPTION_TABLE(align) \
. = ALIGN(align); \
__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ex_table) = .; \
+ __start___ex_table = .; \
KEEP(*(__ex_table)) \
- VMLINUX_SYMBOL(__stop___ex_table) = .; \
+ __stop___ex_table = .; \
}
/*
@@ -567,11 +576,11 @@
#ifdef CONFIG_CONSTRUCTORS
#define KERNEL_CTORS() . = ALIGN(8); \
- VMLINUX_SYMBOL(__ctors_start) = .; \
+ __ctors_start = .; \
KEEP(*(.ctors)) \
KEEP(*(SORT(.init_array.*))) \
KEEP(*(.init_array)) \
- VMLINUX_SYMBOL(__ctors_end) = .;
+ __ctors_end = .;
#else
#define KERNEL_CTORS()
#endif
@@ -579,11 +588,11 @@
/* init and exit section handling */
#define INIT_DATA \
KEEP(*(SORT(___kentry+*))) \
- *(.init.data) \
- MEM_DISCARD(init.data) \
+ *(.init.data init.data.*) \
+ MEM_DISCARD(init.data*) \
KERNEL_CTORS() \
MCOUNT_REC() \
- *(.init.rodata) \
+ *(.init.rodata .init.rodata.*) \
FTRACE_EVENTS() \
TRACE_SYSCALLS() \
KPROBE_BLACKLIST() \
@@ -602,16 +611,16 @@
EARLYCON_TABLE()
#define INIT_TEXT \
- *(.init.text) \
+ *(.init.text .init.text.*) \
*(.text.startup) \
- MEM_DISCARD(init.text)
+ MEM_DISCARD(init.text*)
#define EXIT_DATA \
- *(.exit.data) \
+ *(.exit.data .exit.data.*) \
*(.fini_array) \
*(.dtors) \
- MEM_DISCARD(exit.data) \
- MEM_DISCARD(exit.rodata)
+ MEM_DISCARD(exit.data*) \
+ MEM_DISCARD(exit.rodata*)
#define EXIT_TEXT \
*(.exit.text) \
@@ -629,7 +638,7 @@
. = ALIGN(sbss_align); \
.sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \
*(.dynsbss) \
- *(.sbss) \
+ *(SBSS_MAIN) \
*(.scommon) \
}
@@ -706,9 +715,9 @@
#define BUG_TABLE \
. = ALIGN(8); \
__bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___bug_table) = .; \
+ __start___bug_table = .; \
KEEP(*(__bug_table)) \
- VMLINUX_SYMBOL(__stop___bug_table) = .; \
+ __stop___bug_table = .; \
}
#else
#define BUG_TABLE
@@ -718,22 +727,22 @@
#define ORC_UNWIND_TABLE \
. = ALIGN(4); \
.orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_orc_unwind_ip) = .; \
+ __start_orc_unwind_ip = .; \
KEEP(*(.orc_unwind_ip)) \
- VMLINUX_SYMBOL(__stop_orc_unwind_ip) = .; \
+ __stop_orc_unwind_ip = .; \
} \
. = ALIGN(6); \
.orc_unwind : AT(ADDR(.orc_unwind) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_orc_unwind) = .; \
+ __start_orc_unwind = .; \
KEEP(*(.orc_unwind)) \
- VMLINUX_SYMBOL(__stop_orc_unwind) = .; \
+ __stop_orc_unwind = .; \
} \
. = ALIGN(4); \
.orc_lookup : AT(ADDR(.orc_lookup) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(orc_lookup) = .; \
+ orc_lookup = .; \
. += (((SIZEOF(.text) + LOOKUP_BLOCK_SIZE - 1) / \
LOOKUP_BLOCK_SIZE) + 1) * 4; \
- VMLINUX_SYMBOL(orc_lookup_end) = .; \
+ orc_lookup_end = .; \
}
#else
#define ORC_UNWIND_TABLE
@@ -743,9 +752,9 @@
#define TRACEDATA \
. = ALIGN(4); \
.tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__tracedata_start) = .; \
+ __tracedata_start = .; \
KEEP(*(.tracedata)) \
- VMLINUX_SYMBOL(__tracedata_end) = .; \
+ __tracedata_end = .; \
}
#else
#define TRACEDATA
@@ -753,24 +762,24 @@
#define NOTES \
.notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_notes) = .; \
- *(.note.*) \
- VMLINUX_SYMBOL(__stop_notes) = .; \
+ __start_notes = .; \
+ KEEP(*(.note.*)) \
+ __stop_notes = .; \
}
#define INIT_SETUP(initsetup_align) \
. = ALIGN(initsetup_align); \
- VMLINUX_SYMBOL(__setup_start) = .; \
+ __setup_start = .; \
KEEP(*(.init.setup)) \
- VMLINUX_SYMBOL(__setup_end) = .;
+ __setup_end = .;
#define INIT_CALLS_LEVEL(level) \
- VMLINUX_SYMBOL(__initcall##level##_start) = .; \
+ __initcall##level##_start = .; \
KEEP(*(.initcall##level##.init)) \
KEEP(*(.initcall##level##s.init)) \
#define INIT_CALLS \
- VMLINUX_SYMBOL(__initcall_start) = .; \
+ __initcall_start = .; \
KEEP(*(.initcallearly.init)) \
INIT_CALLS_LEVEL(0) \
INIT_CALLS_LEVEL(1) \
@@ -781,22 +790,22 @@
INIT_CALLS_LEVEL(rootfs) \
INIT_CALLS_LEVEL(6) \
INIT_CALLS_LEVEL(7) \
- VMLINUX_SYMBOL(__initcall_end) = .;
+ __initcall_end = .;
#define CON_INITCALL \
- VMLINUX_SYMBOL(__con_initcall_start) = .; \
+ __con_initcall_start = .; \
KEEP(*(.con_initcall.init)) \
- VMLINUX_SYMBOL(__con_initcall_end) = .;
+ __con_initcall_end = .;
#define SECURITY_INITCALL \
- VMLINUX_SYMBOL(__security_initcall_start) = .; \
+ __security_initcall_start = .; \
KEEP(*(.security_initcall.init)) \
- VMLINUX_SYMBOL(__security_initcall_end) = .;
+ __security_initcall_end = .;
#ifdef CONFIG_BLK_DEV_INITRD
#define INIT_RAM_FS \
. = ALIGN(4); \
- VMLINUX_SYMBOL(__initramfs_start) = .; \
+ __initramfs_start = .; \
KEEP(*(.init.ramfs)) \
. = ALIGN(8); \
KEEP(*(.init.ramfs.info))
@@ -851,7 +860,7 @@
* sharing between subsections for different purposes.
*/
#define PERCPU_INPUT(cacheline) \
- VMLINUX_SYMBOL(__per_cpu_start) = .; \
+ __per_cpu_start = .; \
*(.data..percpu..first) \
. = ALIGN(PAGE_SIZE); \
*(.data..percpu..page_aligned) \
@@ -861,7 +870,7 @@
*(.data..percpu) \
*(.data..percpu..shared_aligned) \
PERCPU_DECRYPTED_SECTION \
- VMLINUX_SYMBOL(__per_cpu_end) = .;
+ __per_cpu_end = .;
/**
* PERCPU_VADDR - define output section for percpu area
@@ -888,12 +897,11 @@
* address, use PERCPU_SECTION.
*/
#define PERCPU_VADDR(cacheline, vaddr, phdr) \
- VMLINUX_SYMBOL(__per_cpu_load) = .; \
- .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
- - LOAD_OFFSET) { \
+ __per_cpu_load = .; \
+ .data..percpu vaddr : AT(__per_cpu_load - LOAD_OFFSET) { \
PERCPU_INPUT(cacheline) \
} phdr \
- . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
+ . = __per_cpu_load + SIZEOF(.data..percpu);
/**
* PERCPU_SECTION - define output section for percpu area, simple version
@@ -910,7 +918,7 @@
#define PERCPU_SECTION(cacheline) \
. = ALIGN(PAGE_SIZE); \
.data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__per_cpu_load) = .; \
+ __per_cpu_load = .; \
PERCPU_INPUT(cacheline) \
}
@@ -949,9 +957,9 @@
#define INIT_TEXT_SECTION(inittext_align) \
. = ALIGN(inittext_align); \
.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(_sinittext) = .; \
+ _sinittext = .; \
INIT_TEXT \
- VMLINUX_SYMBOL(_einittext) = .; \
+ _einittext = .; \
}
#define INIT_DATA_SECTION(initsetup_align) \
@@ -966,8 +974,8 @@
#define BSS_SECTION(sbss_align, bss_align, stop_align) \
. = ALIGN(sbss_align); \
- VMLINUX_SYMBOL(__bss_start) = .; \
+ __bss_start = .; \
SBSS(sbss_align) \
BSS(bss_align) \
. = ALIGN(stop_align); \
- VMLINUX_SYMBOL(__bss_stop) = .;
+ __bss_stop = .;
diff --git a/include/linux/export.h b/include/linux/export.h
index 1a1dfdb2a5c6..b768d6dd3c90 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -10,14 +10,8 @@
* hackers place grumpy comments in header files.
*/
-/* Some toolchains use a `_' prefix for all user symbols. */
-#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
-#define __VMLINUX_SYMBOL(x) _##x
-#define __VMLINUX_SYMBOL_STR(x) "_" #x
-#else
#define __VMLINUX_SYMBOL(x) x
#define __VMLINUX_SYMBOL_STR(x) #x
-#endif
/* Indirect, so macros are expanded before pasting. */
#define VMLINUX_SYMBOL(x) __VMLINUX_SYMBOL(x)
@@ -46,14 +40,14 @@ extern struct module __this_module;
#if defined(CONFIG_MODULE_REL_CRCS)
#define __CRC_SYMBOL(sym, sec) \
asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
- " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
- " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " - . \n" \
+ " .weak __crc_" #sym " \n" \
+ " .long __crc_" #sym " - . \n" \
" .previous \n");
#else
#define __CRC_SYMBOL(sym, sec) \
asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
- " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
- " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
+ " .weak __crc_" #sym " \n" \
+ " .long __crc_" #sym " \n" \
" .previous \n");
#endif
#else
@@ -66,7 +60,7 @@ extern struct module __this_module;
__CRC_SYMBOL(sym, sec) \
static const char __kstrtab_##sym[] \
__attribute__((section("__ksymtab_strings"), aligned(1))) \
- = VMLINUX_SYMBOL_STR(sym); \
+ = #sym; \
static const struct kernel_symbol __ksymtab_##sym \
__used \
__attribute__((section("___ksymtab" sec "+" #sym), used)) \
diff --git a/init/Kconfig b/init/Kconfig
index 18b151f0ddc1..829a4c1117f2 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1038,6 +1038,33 @@ config CC_OPTIMIZE_FOR_SIZE
endchoice
+config HAVE_LD_DEAD_CODE_DATA_ELIMINATION
+ bool
+ help
+ This requires that the arch annotates or otherwise protects
+ its external entry points from being discarded. Linker scripts
+ must also merge .text.*, .data.*, and .bss.* correctly into
+ output sections. Care must be taken not to pull in unrelated
+ sections (e.g., '.text.init'). Typically '.' in section names
+ is used to distinguish them from label names / C identifiers.
+
+config LD_DEAD_CODE_DATA_ELIMINATION
+ bool "Dead code and data elimination (EXPERIMENTAL)"
+ depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION
+ depends on EXPERT
+ help
+ Select this if the architecture wants to do dead code and
+ data elimination with the linker by compiling with
+ -ffunction-sections -fdata-sections, and linking with
+ --gc-sections.
+
+ This can reduce on disk and in-memory size of the kernel
+ code and static data, particularly for small configs and
+ on small systems. This has the possibility of introducing
+ silently broken kernel if the required annotations are not
+ present. This option is not well tested yet, so use at your
+ own risk.
+
config SYSCTL
bool
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 8bdb1dc4072c..753b9add56f5 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -147,7 +147,6 @@ $(obj)/%.i: $(src)/%.c FORCE
cmd_gensymtypes_c = \
$(CPP) -D__GENKSYMS__ $(c_flags) $< | \
$(GENKSYMS) $(if $(1), -T $(2)) \
- $(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX)) \
$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
$(if $(KBUILD_PRESERVE),-p) \
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
@@ -355,7 +354,6 @@ cmd_gensymtypes_S = \
sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ) | \
$(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
$(GENKSYMS) $(if $(1), -T $(2)) \
- $(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX)) \
$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
$(if $(KBUILD_PRESERVE),-p) \
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
@@ -487,15 +485,10 @@ targets += $(lib-target)
dummy-object = $(obj)/.lib_exports.o
ksyms-lds = $(dot-target).lds
-ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
-ref_prefix = EXTERN(_
-else
-ref_prefix = EXTERN(
-endif
quiet_cmd_export_list = EXPORTS $@
cmd_export_list = $(OBJDUMP) -h $< | \
- sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/$(ref_prefix)\1)/p' >$(ksyms-lds);\
+ sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/EXTERN(\1)/p' >$(ksyms-lds);\
rm -f $(dummy-object);\
echo | $(CC) $(a_flags) -c -o $(dummy-object) -x assembler -;\
$(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\
diff --git a/scripts/adjust_autoksyms.sh b/scripts/adjust_autoksyms.sh
index 016b3c48a4ec..6e6d63957da3 100755
--- a/scripts/adjust_autoksyms.sh
+++ b/scripts/adjust_autoksyms.sh
@@ -61,9 +61,6 @@ for mod in "$MODVERDIR"/*.mod; do
sed -n -e '3{s/ /\n/g;/^$/!p;}' "$mod"
done | sort -u |
while read sym; do
- if [ -n "$CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX" ]; then
- sym="${sym#_}"
- fi
echo "#define __KSYM_${sym} 1"
done >> "$new_ksyms_file"
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index f387538c58bc..850966f3d602 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -115,7 +115,7 @@ static void usage(void)
*/
static void print_dep(const char *m, int slen, const char *dir)
{
- int c, i;
+ int c, prev_c = '/', i;
printf(" $(wildcard %s/", dir);
for (i = 0; i < slen; i++) {
@@ -124,7 +124,9 @@ static void print_dep(const char *m, int slen, const char *dir)
c = '/';
else
c = tolower(c);
- putchar(c);
+ if (c != '/' || prev_c != '/')
+ putchar(c);
+ prev_c = c;
}
printf(".h) \\\n");
}
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2d42eb9cd1a5..e6033d3c48d3 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5121,16 +5121,6 @@ sub process {
}
}
-# make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
-# all assignments may have only one of the following with an assignment:
-# .
-# ALIGN(...)
-# VMLINUX_SYMBOL(...)
- if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
- WARN("MISSING_VMLINUX_SYMBOL",
- "vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
- }
-
# check for redundant bracing round if etc
if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
my ($level, $endln, @chunks) =
diff --git a/scripts/coccinelle/locks/mini_lock.cocci b/scripts/coccinelle/locks/mini_lock.cocci
index 47f649b0ea87..19c6ee5b986b 100644
--- a/scripts/coccinelle/locks/mini_lock.cocci
+++ b/scripts/coccinelle/locks/mini_lock.cocci
@@ -67,12 +67,14 @@ identifier lock,unlock;
@@
*lock(E1@p,...);
-<+... when != E1
+... when != E1
+ when any
if (...) {
... when != E1
* return@r ...;
}
-...+>
+... when != E1
+ when any
*unlock@up(E1,...);
@script:python depends on org@
diff --git a/scripts/coccinelle/null/deref_null.cocci b/scripts/coccinelle/null/deref_null.cocci
index b16ccb7663a7..cbc6184e69ef 100644
--- a/scripts/coccinelle/null/deref_null.cocci
+++ b/scripts/coccinelle/null/deref_null.cocci
@@ -14,18 +14,10 @@ virtual context
virtual org
virtual report
-@ifm@
-expression *E;
-statement S1,S2;
-position p1;
-@@
-
-if@p1 ((E == NULL && ...) || ...) S1 else S2
-
// The following two rules are separate, because both can match a single
// expression in different ways
@pr1 expression@
-expression *ifm.E;
+expression E;
identifier f;
position p1;
@@
@@ -33,7 +25,7 @@ position p1;
(E != NULL && ...) ? <+...E->f@p1...+> : ...
@pr2 expression@
-expression *ifm.E;
+expression E;
identifier f;
position p2;
@@
@@ -46,6 +38,14 @@ position p2;
sizeof(<+...E->f@p2...+>)
)
+@ifm@
+expression *E;
+statement S1,S2;
+position p1;
+@@
+
+if@p1 ((E == NULL && ...) || ...) S1 else S2
+
// For org and report modes
@r depends on !context && (org || report) exists@
@@ -212,16 +212,8 @@ else S3
// The following three rules are duplicates of ifm, pr1 and pr2 respectively.
// It is need because the previous rule as already made a "change".
-@ifm1 depends on context && !org && !report@
-expression *E;
-statement S1,S2;
-position p1;
-@@
-
-if@p1 ((E == NULL && ...) || ...) S1 else S2
-
@pr11 depends on context && !org && !report expression@
-expression *ifm1.E;
+expression E;
identifier f;
position p1;
@@
@@ -229,7 +221,7 @@ position p1;
(E != NULL && ...) ? <+...E->f@p1...+> : ...
@pr12 depends on context && !org && !report expression@
-expression *ifm1.E;
+expression E;
identifier f;
position p2;
@@
@@ -242,6 +234,14 @@ position p2;
sizeof(<+...E->f@p2...+>)
)
+@ifm1 depends on context && !org && !report@
+expression *E;
+statement S1,S2;
+position p1;
+@@
+
+if@p1 ((E == NULL && ...) || ...) S1 else S2
+
@depends on context && !org && !report exists@
expression subE <= ifm1.E;
expression *ifm1.E;
diff --git a/scripts/depmod.sh b/scripts/depmod.sh
index 9831cca31240..1a6f85e0e6e1 100755
--- a/scripts/depmod.sh
+++ b/scripts/depmod.sh
@@ -3,36 +3,17 @@
#
# A depmod wrapper used by the toplevel Makefile
-if test $# -ne 3; then
- echo "Usage: $0 /sbin/depmod <kernelrelease> <symbolprefix>" >&2
+if test $# -ne 2; then
+ echo "Usage: $0 /sbin/depmod <kernelrelease>" >&2
exit 1
fi
DEPMOD=$1
KERNELRELEASE=$2
-SYMBOL_PREFIX=$3
if ! test -r System.map -a -x "$DEPMOD"; then
exit 0
fi
-# older versions of depmod don't support -P <symbol-prefix>
-# support was added in module-init-tools 3.13
-if test -n "$SYMBOL_PREFIX"; then
- release=$("$DEPMOD" --version)
- package=$(echo "$release" | cut -d' ' -f 1)
- if test "$package" = "module-init-tools"; then
- version=$(echo "$release" | cut -d' ' -f 2)
- later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1)
- if test "$later" != "$version"; then
- # module-init-tools < 3.13, drop the symbol prefix
- SYMBOL_PREFIX=""
- fi
- fi
- if test -n "$SYMBOL_PREFIX"; then
- SYMBOL_PREFIX="-P $SYMBOL_PREFIX"
- fi
-fi
-
# older versions of depmod require the version string to start with three
# numbers, so we cheat with a symlink here
depmod_hack_needed=true
@@ -55,7 +36,7 @@ set -- -ae -F System.map
if test -n "$INSTALL_MOD_PATH"; then
set -- "$@" -b "$INSTALL_MOD_PATH"
fi
-"$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX
+"$DEPMOD" "$@" "$KERNELRELEASE"
ret=$?
if $depmod_hack_needed; then
diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c
index c9235d8340f1..e007840f45b9 100644
--- a/scripts/genksyms/genksyms.c
+++ b/scripts/genksyms/genksyms.c
@@ -45,7 +45,6 @@ int in_source_file;
static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types,
flag_preserve, flag_warnings, flag_rel_crcs;
-static const char *mod_prefix = "";
static int errors;
static int nsyms;
@@ -693,10 +692,10 @@ void export_symbol(const char *name)
fputs(">\n", debugfile);
/* Used as a linker script. */
- printf(!flag_rel_crcs ? "%s__crc_%s = 0x%08lx;\n" :
+ printf(!flag_rel_crcs ? "__crc_%s = 0x%08lx;\n" :
"SECTIONS { .rodata : ALIGN(4) { "
- "%s__crc_%s = .; LONG(0x%08lx); } }\n",
- mod_prefix, name, crc);
+ "__crc_%s = .; LONG(0x%08lx); } }\n",
+ name, crc);
}
}
@@ -769,7 +768,6 @@ int main(int argc, char **argv)
#ifdef __GNU_LIBRARY__
struct option long_opts[] = {
- {"symbol-prefix", 1, 0, 's'},
{"debug", 0, 0, 'd'},
{"warnings", 0, 0, 'w'},
{"quiet", 0, 0, 'q'},
@@ -789,9 +787,6 @@ int main(int argc, char **argv)
while ((o = getopt(argc, argv, "s:dwqVDr:T:phR")) != EOF)
#endif /* __GNU_LIBRARY__ */
switch (o) {
- case 's':
- mod_prefix = optarg;
- break;
case 'd':
flag_debug++;
break;
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 5abfbf1b8fe2..a9186a98a37d 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -62,7 +62,6 @@ static struct sym_entry *table;
static unsigned int table_size, table_cnt;
static int all_symbols = 0;
static int absolute_percpu = 0;
-static char symbol_prefix_char = '\0';
static int base_relative = 0;
int token_profit[0x10000];
@@ -75,7 +74,6 @@ unsigned char best_table_len[256];
static void usage(void)
{
fprintf(stderr, "Usage: kallsyms [--all-symbols] "
- "[--symbol-prefix=<prefix char>] "
"[--base-relative] < in.map > out.S\n");
exit(1);
}
@@ -113,28 +111,22 @@ static int check_symbol_range(const char *sym, unsigned long long addr,
static int read_symbol(FILE *in, struct sym_entry *s)
{
- char str[500];
- char *sym, stype;
+ char sym[500], stype;
int rc;
- rc = fscanf(in, "%llx %c %499s\n", &s->addr, &stype, str);
+ rc = fscanf(in, "%llx %c %499s\n", &s->addr, &stype, sym);
if (rc != 3) {
- if (rc != EOF && fgets(str, 500, in) == NULL)
+ if (rc != EOF && fgets(sym, 500, in) == NULL)
fprintf(stderr, "Read error or end of file.\n");
return -1;
}
- if (strlen(str) > KSYM_NAME_LEN) {
+ if (strlen(sym) > KSYM_NAME_LEN) {
fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
"Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
- str, strlen(str), KSYM_NAME_LEN);
+ sym, strlen(sym), KSYM_NAME_LEN);
return -1;
}
- sym = str;
- /* skip prefix char */
- if (symbol_prefix_char && str[0] == symbol_prefix_char)
- sym++;
-
/* Ignore most absolute/undefined (?) symbols. */
if (strcmp(sym, "_text") == 0)
_text = s->addr;
@@ -155,7 +147,7 @@ static int read_symbol(FILE *in, struct sym_entry *s)
is_arm_mapping_symbol(sym))
return -1;
/* exclude also MIPS ELF local symbols ($L123 instead of .L123) */
- else if (str[0] == '$')
+ else if (sym[0] == '$')
return -1;
/* exclude debugging symbols */
else if (stype == 'N' || stype == 'n')
@@ -163,14 +155,14 @@ static int read_symbol(FILE *in, struct sym_entry *s)
/* include the type field in the symbol name, so that it gets
* compressed together */
- s->len = strlen(str) + 1;
+ s->len = strlen(sym) + 1;
s->sym = malloc(s->len + 1);
if (!s->sym) {
fprintf(stderr, "kallsyms failure: "
"unable to allocate required amount of memory\n");
exit(EXIT_FAILURE);
}
- strcpy((char *)s->sym + 1, str);
+ strcpy((char *)s->sym + 1, sym);
s->sym[0] = stype;
s->percpu_absolute = 0;
@@ -233,11 +225,6 @@ static int symbol_valid(struct sym_entry *s)
int i;
char *sym_name = (char *)s->sym + 1;
- /* skip prefix char */
- if (symbol_prefix_char && *sym_name == symbol_prefix_char)
- sym_name++;
-
-
/* if --all-symbols is not specified, then symbols outside the text
* and inittext sections are discarded */
if (!all_symbols) {
@@ -302,15 +289,9 @@ static void read_map(FILE *in)
static void output_label(char *label)
{
- if (symbol_prefix_char)
- printf(".globl %c%s\n", symbol_prefix_char, label);
- else
- printf(".globl %s\n", label);
+ printf(".globl %s\n", label);
printf("\tALGN\n");
- if (symbol_prefix_char)
- printf("%c%s:\n", symbol_prefix_char, label);
- else
- printf("%s:\n", label);
+ printf("%s:\n", label);
}
/* uncompress a compressed symbol. When this function is called, the best table
@@ -424,7 +405,7 @@ static void write_src(void)
}
output_label("kallsyms_num_syms");
- printf("\tPTR\t%d\n", table_cnt);
+ printf("\tPTR\t%u\n", table_cnt);
printf("\n");
/* table of offset markers, that give the offset in the compressed stream
@@ -768,13 +749,7 @@ int main(int argc, char **argv)
all_symbols = 1;
else if (strcmp(argv[i], "--absolute-percpu") == 0)
absolute_percpu = 1;
- else if (strncmp(argv[i], "--symbol-prefix=", 16) == 0) {
- char *p = &argv[i][16];
- /* skip quote */
- if ((*p == '"' && *(p+2) == '"') || (*p == '\'' && *(p+2) == '\''))
- p++;
- symbol_prefix_char = *p;
- } else if (strcmp(argv[i], "--base-relative") == 0)
+ else if (strcmp(argv[i], "--base-relative") == 0)
base_relative = 1;
else
usage();
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 9045823c7be7..4bf811c09f59 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -121,10 +121,6 @@ kallsyms()
info KSYM ${2}
local kallsymopt;
- if [ -n "${CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX}" ]; then
- kallsymopt="${kallsymopt} --symbol-prefix=_"
- fi
-
if [ -n "${CONFIG_KALLSYMS_ALL}" ]; then
kallsymopt="${kallsymopt} --all-symbols"
fi
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 4ff08a0ef5d3..1663fb19343a 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -19,9 +19,7 @@
#include <stdbool.h>
#include <errno.h>
#include "modpost.h"
-#include "../../include/generated/autoconf.h"
#include "../../include/linux/license.h"
-#include "../../include/linux/export.h"
/* Are we using CONFIG_MODVERSIONS? */
static int modversions = 0;
@@ -123,7 +121,7 @@ void *do_nofail(void *ptr, const char *expr)
/* A list of all modules we processed */
static struct module *modules;
-static struct module *find_module(char *modname)
+static struct module *find_module(const char *modname)
{
struct module *mod;
@@ -591,35 +589,32 @@ static void parse_elf_finish(struct elf_info *info)
static int ignore_undef_symbol(struct elf_info *info, const char *symname)
{
/* ignore __this_module, it will be resolved shortly */
- if (strcmp(symname, VMLINUX_SYMBOL_STR(__this_module)) == 0)
+ if (strcmp(symname, "__this_module") == 0)
return 1;
/* ignore global offset table */
if (strcmp(symname, "_GLOBAL_OFFSET_TABLE_") == 0)
return 1;
if (info->hdr->e_machine == EM_PPC)
/* Special register function linked on all modules during final link of .ko */
- if (strncmp(symname, "_restgpr_", sizeof("_restgpr_") - 1) == 0 ||
- strncmp(symname, "_savegpr_", sizeof("_savegpr_") - 1) == 0 ||
- strncmp(symname, "_rest32gpr_", sizeof("_rest32gpr_") - 1) == 0 ||
- strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0 ||
- strncmp(symname, "_restvr_", sizeof("_restvr_") - 1) == 0 ||
- strncmp(symname, "_savevr_", sizeof("_savevr_") - 1) == 0)
+ if (strstarts(symname, "_restgpr_") ||
+ strstarts(symname, "_savegpr_") ||
+ strstarts(symname, "_rest32gpr_") ||
+ strstarts(symname, "_save32gpr_") ||
+ strstarts(symname, "_restvr_") ||
+ strstarts(symname, "_savevr_"))
return 1;
if (info->hdr->e_machine == EM_PPC64)
/* Special register function linked on all modules during final link of .ko */
- if (strncmp(symname, "_restgpr0_", sizeof("_restgpr0_") - 1) == 0 ||
- strncmp(symname, "_savegpr0_", sizeof("_savegpr0_") - 1) == 0 ||
- strncmp(symname, "_restvr_", sizeof("_restvr_") - 1) == 0 ||
- strncmp(symname, "_savevr_", sizeof("_savevr_") - 1) == 0 ||
+ if (strstarts(symname, "_restgpr0_") ||
+ strstarts(symname, "_savegpr0_") ||
+ strstarts(symname, "_restvr_") ||
+ strstarts(symname, "_savevr_") ||
strcmp(symname, ".TOC.") == 0)
return 1;
/* Do not ignore this symbol */
return 0;
}
-#define CRC_PFX VMLINUX_SYMBOL_STR(__crc_)
-#define KSYMTAB_PFX VMLINUX_SYMBOL_STR(__ksymtab_)
-
static void handle_modversions(struct module *mod, struct elf_info *info,
Elf_Sym *sym, const char *symname)
{
@@ -628,13 +623,13 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
bool is_crc = false;
if ((!is_vmlinux(mod->name) || mod->is_dot_o) &&
- strncmp(symname, "__ksymtab", 9) == 0)
+ strstarts(symname, "__ksymtab"))
export = export_from_secname(info, get_secindex(info, sym));
else
export = export_from_sec(info, get_secindex(info, sym));
/* CRC'd symbol */
- if (strncmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) {
+ if (strstarts(symname, "__crc_")) {
is_crc = true;
crc = (unsigned int) sym->st_value;
if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS) {
@@ -647,13 +642,13 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
info->sechdrs[sym->st_shndx].sh_addr : 0);
crc = *crcp;
}
- sym_update_crc(symname + strlen(CRC_PFX), mod, crc,
+ sym_update_crc(symname + strlen("__crc_"), mod, crc,
export);
}
switch (sym->st_shndx) {
case SHN_COMMON:
- if (!strncmp(symname, "__gnu_lto_", sizeof("__gnu_lto_")-1)) {
+ if (strstarts(symname, "__gnu_lto_")) {
/* Should warn here, but modpost runs before the linker */
} else
warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name);
@@ -685,15 +680,10 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
}
#endif
-#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
- if (symname[0] != '_')
- break;
- else
- symname++;
-#endif
if (is_crc) {
const char *e = is_vmlinux(mod->name) ?"":".ko";
- warn("EXPORT symbol \"%s\" [%s%s] version generation failed, symbol will not be versioned.\n", symname + strlen(CRC_PFX), mod->name, e);
+ warn("EXPORT symbol \"%s\" [%s%s] version generation failed, symbol will not be versioned.\n",
+ symname + strlen("__crc_"), mod->name, e);
}
mod->unres = alloc_symbol(symname,
ELF_ST_BIND(sym->st_info) == STB_WEAK,
@@ -701,13 +691,13 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
break;
default:
/* All exported symbols */
- if (strncmp(symname, KSYMTAB_PFX, strlen(KSYMTAB_PFX)) == 0) {
- sym_add_exported(symname + strlen(KSYMTAB_PFX), mod,
+ if (strstarts(symname, "__ksymtab_")) {
+ sym_add_exported(symname + strlen("__ksymtab_"), mod,
export);
}
- if (strcmp(symname, VMLINUX_SYMBOL_STR(init_module)) == 0)
+ if (strcmp(symname, "init_module") == 0)
mod->has_init = 1;
- if (strcmp(symname, VMLINUX_SYMBOL_STR(cleanup_module)) == 0)
+ if (strcmp(symname, "cleanup_module") == 0)
mod->has_cleanup = 1;
break;
}
@@ -734,16 +724,17 @@ static char *next_string(char *string, unsigned long *secsize)
return string;
}
-static char *get_next_modinfo(void *modinfo, unsigned long modinfo_len,
- const char *tag, char *info)
+static char *get_next_modinfo(struct elf_info *info, const char *tag,
+ char *prev)
{
char *p;
unsigned int taglen = strlen(tag);
- unsigned long size = modinfo_len;
+ char *modinfo = info->modinfo;
+ unsigned long size = info->modinfo_len;
- if (info) {
- size -= info - (char *)modinfo;
- modinfo = next_string(info, &size);
+ if (prev) {
+ size -= prev - modinfo;
+ modinfo = next_string(prev, &size);
}
for (p = modinfo; p; p = next_string(p, &size)) {
@@ -753,11 +744,10 @@ static char *get_next_modinfo(void *modinfo, unsigned long modinfo_len,
return NULL;
}
-static char *get_modinfo(void *modinfo, unsigned long modinfo_len,
- const char *tag)
+static char *get_modinfo(struct elf_info *info, const char *tag)
{
- return get_next_modinfo(modinfo, modinfo_len, tag, NULL);
+ return get_next_modinfo(info, tag, NULL);
}
/**
@@ -1181,13 +1171,13 @@ static int secref_whitelist(const struct sectioncheck *mismatch,
/* Check for pattern 1 */
if (match(tosec, init_data_sections) &&
match(fromsec, data_sections) &&
- (strncmp(fromsym, "__param", strlen("__param")) == 0))
+ strstarts(fromsym, "__param"))
return 0;
/* Check for pattern 1a */
if (strcmp(tosec, ".init.text") == 0 &&
match(fromsec, data_sections) &&
- (strncmp(fromsym, "__param_ops_", strlen("__param_ops_")) == 0))
+ strstarts(fromsym, "__param_ops_"))
return 0;
/* Check for pattern 2 */
@@ -1542,8 +1532,7 @@ static void default_mismatch_handler(const char *modname, struct elf_info *elf,
from = find_elf_symbol2(elf, r->r_offset, fromsec);
fromsym = sym_name(elf, from);
- if (!strncmp(fromsym, "reference___initcall",
- sizeof("reference___initcall")-1))
+ if (strstarts(fromsym, "reference___initcall"))
return;
tosec = sec_name(elf, get_secindex(elf, sym));
@@ -1940,7 +1929,7 @@ static char *remove_dot(char *s)
return s;
}
-static void read_symbols(char *modname)
+static void read_symbols(const char *modname)
{
const char *symname;
char *version;
@@ -1961,7 +1950,7 @@ static void read_symbols(char *modname)
mod->skip = 1;
}
- license = get_modinfo(info.modinfo, info.modinfo_len, "license");
+ license = get_modinfo(&info, "license");
if (!license && !is_vmlinux(modname))
warn("modpost: missing MODULE_LICENSE() in %s\n"
"see include/linux/module.h for "
@@ -1973,8 +1962,7 @@ static void read_symbols(char *modname)
mod->gpl_compatible = 0;
break;
}
- license = get_next_modinfo(info.modinfo, info.modinfo_len,
- "license", license);
+ license = get_next_modinfo(&info, "license", license);
}
for (sym = info.symtab_start; sym < info.symtab_stop; sym++) {
@@ -1983,11 +1971,10 @@ static void read_symbols(char *modname)
handle_modversions(mod, &info, sym, symname);
handle_moddevtable(mod, &info, sym, symname);
}
- if (!is_vmlinux(modname) ||
- (is_vmlinux(modname) && vmlinux_section_warnings))
+ if (!is_vmlinux(modname) || vmlinux_section_warnings)
check_sec_ref(mod, modname, &info);
- version = get_modinfo(info.modinfo, info.modinfo_len, "version");
+ version = get_modinfo(&info, "version");
if (version)
maybe_frob_rcs_version(modname, version, info.modinfo,
version - (char *)info.hdr);
@@ -2174,9 +2161,7 @@ static void add_retpoline(struct buffer *b)
static void add_staging_flag(struct buffer *b, const char *name)
{
- static const char *staging_dir = "drivers/staging";
-
- if (strncmp(staging_dir, name, strlen(staging_dir)) == 0)
+ if (strstarts(name, "drivers/staging"))
buf_printf(b, "\nMODULE_INFO(staging, \"Y\");\n");
}
@@ -2230,7 +2215,7 @@ static int add_versions(struct buffer *b, struct module *mod)
err = 1;
break;
}
- buf_printf(b, "\t{ %#8x, __VMLINUX_SYMBOL_STR(%s) },\n",
+ buf_printf(b, "\t{ %#8x, \"%s\" },\n",
s->crc, s->name);
}
diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index 6adb3a16ba3b..985d72d1ab34 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -71,22 +71,21 @@ if [ "$ARCH" = "um" ] ; then
packagename=user-mode-linux-$version
fi
-# Try to determine maintainer and email values
-if [ -n "$DEBEMAIL" ]; then
- email=$DEBEMAIL
-elif [ -n "$EMAIL" ]; then
- email=$EMAIL
-else
- email=$(id -nu)@$(hostname -f 2>/dev/null || hostname)
-fi
-if [ -n "$DEBFULLNAME" ]; then
- name=$DEBFULLNAME
-elif [ -n "$NAME" ]; then
- name=$NAME
+email=${DEBEMAIL-$EMAIL}
+
+# use email string directly if it contains <email>
+if echo $email | grep -q '<.*>'; then
+ maintainer=$email
else
- name="Anonymous"
+ # or construct the maintainer string
+ user=${KBUILD_BUILD_USER-$(id -nu)}
+ name=${DEBFULLNAME-$user}
+ if [ -z "$email" ]; then
+ buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
+ email="$user@$buildhost"
+ fi
+ maintainer="$name <$email>"
fi
-maintainer="$name <$email>"
# Try to determine distribution
if [ -n "$KDEB_CHANGELOG_DIST" ]; then
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 8c9691c3329e..895c40e8679f 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -500,7 +500,7 @@ do_file(char const *const fname)
gpfx = 0;
switch (w2(ehdr->e_machine)) {
default:
- fprintf(stderr, "unrecognized e_machine %d %s\n",
+ fprintf(stderr, "unrecognized e_machine %u %s\n",
w2(ehdr->e_machine), fname);
fail_file();
break;
diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index b9897e2be404..2e7793735e14 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -441,7 +441,7 @@ static unsigned find_secsym_ndx(unsigned const txtndx,
return symp - sym0;
}
}
- fprintf(stderr, "Cannot find symbol for section %d: %s.\n",
+ fprintf(stderr, "Cannot find symbol for section %u: %s.\n",
txtndx, txtname);
fail_file();
}
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 78e546ff689c..e587610d1492 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -28,20 +28,11 @@ fi
# ignore userspace tools
ignore="$ignore ( -path ${tree}tools ) -prune -o"
-# Find all available archs
-find_all_archs()
-{
- ALLSOURCE_ARCHS=""
- for arch in `ls ${tree}arch`; do
- ALLSOURCE_ARCHS="${ALLSOURCE_ARCHS} "${arch##\/}
- done
-}
-
# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
if [ "${ALLSOURCE_ARCHS}" = "" ]; then
ALLSOURCE_ARCHS=${SRCARCH}
elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
- find_all_archs
+ ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
fi
# find sources in arch/$ARCH