aboutsummaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/asm-avr32/setup.h2
-rw-r--r--include/asm-generic/vmlinux.lds.h89
-rw-r--r--include/asm-ia64/gcc_intrin.h2
-rw-r--r--include/asm-sh/machvec.h2
-rw-r--r--include/asm-sh/thread_info.h2
-rw-r--r--include/asm-x86/thread_info_32.h2
-rw-r--r--include/linux/Kbuild8
-rw-r--r--include/linux/compiler-gcc3.h2
-rw-r--r--include/linux/compiler-gcc4.h1
-rw-r--r--include/linux/compiler.h9
-rw-r--r--include/linux/elfnote.h2
-rw-r--r--include/linux/init.h130
-rw-r--r--include/linux/module.h4
-rw-r--r--include/linux/moduleparam.h4
-rw-r--r--include/linux/pci.h2
15 files changed, 181 insertions, 80 deletions
diff --git a/include/asm-avr32/setup.h b/include/asm-avr32/setup.h
index b0828d43e11..ea3070ff13a 100644
--- a/include/asm-avr32/setup.h
+++ b/include/asm-avr32/setup.h
@@ -110,7 +110,7 @@ struct tagtable {
int (*parse)(struct tag *);
};
-#define __tag __attribute_used__ __attribute__((__section__(".taglist.init")))
+#define __tag __used __attribute__((__section__(".taglist.init")))
#define __tagtable(tag, fn) \
static struct tagtable __tagtable_##fn __tag = { tag, fn }
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 9f584cc5c5f..76df771be58 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -9,10 +9,46 @@
/* Align . to a 8 byte boundary equals to maximum function alignment. */
#define ALIGN_FUNCTION() . = ALIGN(8)
+/* The actual configuration determine if the init/exit sections
+ * are handled as text/data or they can be discarded (which
+ * often happens at runtime)
+ */
+#ifdef CONFIG_HOTPLUG
+#define DEV_KEEP(sec) *(.dev##sec)
+#define DEV_DISCARD(sec)
+#else
+#define DEV_KEEP(sec)
+#define DEV_DISCARD(sec) *(.dev##sec)
+#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+#define CPU_KEEP(sec) *(.cpu##sec)
+#define CPU_DISCARD(sec)
+#else
+#define CPU_KEEP(sec)
+#define CPU_DISCARD(sec) *(.cpu##sec)
+#endif
+
+#if defined(CONFIG_MEMORY_HOTPLUG)
+#define MEM_KEEP(sec) *(.mem##sec)
+#define MEM_DISCARD(sec)
+#else
+#define MEM_KEEP(sec)
+#define MEM_DISCARD(sec) *(.mem##sec)
+#endif
+
+
/* .data section */
#define DATA_DATA \
*(.data) \
*(.data.init.refok) \
+ *(.ref.data) \
+ DEV_KEEP(init.data) \
+ DEV_KEEP(exit.data) \
+ CPU_KEEP(init.data) \
+ CPU_KEEP(exit.data) \
+ MEM_KEEP(init.data) \
+ MEM_KEEP(exit.data) \
. = ALIGN(8); \
VMLINUX_SYMBOL(__start___markers) = .; \
*(__markers) \
@@ -132,6 +168,17 @@
*(__ksymtab_strings) \
} \
\
+ /* __*init sections */ \
+ __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \
+ *(.ref.rodata) \
+ DEV_KEEP(init.rodata) \
+ DEV_KEEP(exit.rodata) \
+ CPU_KEEP(init.rodata) \
+ CPU_KEEP(exit.rodata) \
+ MEM_KEEP(init.rodata) \
+ MEM_KEEP(exit.rodata) \
+ } \
+ \
/* Built-in module parameters. */ \
__param : AT(ADDR(__param) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___param) = .; \
@@ -139,7 +186,6 @@
VMLINUX_SYMBOL(__stop___param) = .; \
VMLINUX_SYMBOL(__end_rodata) = .; \
} \
- \
. = ALIGN((align));
/* RODATA provided for backward compatibility.
@@ -158,8 +204,16 @@
#define TEXT_TEXT \
ALIGN_FUNCTION(); \
*(.text) \
+ *(.ref.text) \
*(.text.init.refok) \
- *(.exit.text.refok)
+ *(.exit.text.refok) \
+ DEV_KEEP(init.text) \
+ DEV_KEEP(exit.text) \
+ CPU_KEEP(init.text) \
+ CPU_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 */
@@ -183,6 +237,37 @@
*(.kprobes.text) \
VMLINUX_SYMBOL(__kprobes_text_end) = .;
+/* init and exit section handling */
+#define INIT_DATA \
+ *(.init.data) \
+ DEV_DISCARD(init.data) \
+ DEV_DISCARD(init.rodata) \
+ CPU_DISCARD(init.data) \
+ CPU_DISCARD(init.rodata) \
+ MEM_DISCARD(init.data) \
+ MEM_DISCARD(init.rodata)
+
+#define INIT_TEXT \
+ *(.init.text) \
+ DEV_DISCARD(init.text) \
+ CPU_DISCARD(init.text) \
+ MEM_DISCARD(init.text)
+
+#define EXIT_DATA \
+ *(.exit.data) \
+ DEV_DISCARD(exit.data) \
+ DEV_DISCARD(exit.rodata) \
+ CPU_DISCARD(exit.data) \
+ CPU_DISCARD(exit.rodata) \
+ MEM_DISCARD(exit.data) \
+ MEM_DISCARD(exit.rodata)
+
+#define EXIT_TEXT \
+ *(.exit.text) \
+ DEV_DISCARD(exit.text) \
+ CPU_DISCARD(exit.text) \
+ MEM_DISCARD(exit.text)
+
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to
the beginning of the section so we begin them at 0. */
diff --git a/include/asm-ia64/gcc_intrin.h b/include/asm-ia64/gcc_intrin.h
index e58d3298fa1..5b6665c754c 100644
--- a/include/asm-ia64/gcc_intrin.h
+++ b/include/asm-ia64/gcc_intrin.h
@@ -24,7 +24,7 @@
extern void ia64_bad_param_for_setreg (void);
extern void ia64_bad_param_for_getreg (void);
-register unsigned long ia64_r13 asm ("r13") __attribute_used__;
+register unsigned long ia64_r13 asm ("r13") __used;
#define ia64_setreg(regnum, val) \
({ \
diff --git a/include/asm-sh/machvec.h b/include/asm-sh/machvec.h
index ddb18ad2330..b2e4124070a 100644
--- a/include/asm-sh/machvec.h
+++ b/include/asm-sh/machvec.h
@@ -65,6 +65,6 @@ extern struct sh_machine_vector sh_mv;
#define get_system_type() sh_mv.mv_name
#define __initmv \
- __attribute_used__ __attribute__((__section__ (".machvec.init")))
+ __used __section(.machvec.init)
#endif /* _ASM_SH_MACHVEC_H */
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index c6577d3dc46..c50e5d35fe8 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -68,7 +68,7 @@ struct thread_info {
#define init_stack (init_thread_union.stack)
/* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("r15") __attribute_used__;
+register unsigned long current_stack_pointer asm("r15") __used;
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index ef58fd2a6eb..a516e9192f1 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -85,7 +85,7 @@ struct thread_info {
/* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("esp") __attribute_used__;
+register unsigned long current_stack_pointer asm("esp") __used;
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index bd694f77934..ad99ce9f916 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -34,7 +34,6 @@ header-y += atmsap.h
header-y += atmsvc.h
header-y += atm_zatm.h
header-y += auto_fs4.h
-header-y += auxvec.h
header-y += ax25.h
header-y += b1lli.h
header-y += baycom.h
@@ -73,7 +72,7 @@ header-y += gen_stats.h
header-y += gigaset_dev.h
header-y += hdsmart.h
header-y += hysdn_if.h
-header-y += i2c-dev.h
+header-y += i2o-dev.h
header-y += i8k.h
header-y += if_arcnet.h
header-y += if_bonding.h
@@ -158,7 +157,6 @@ header-y += veth.h
header-y += video_decoder.h
header-y += video_encoder.h
header-y += videotext.h
-header-y += vt.h
header-y += x25.h
unifdef-y += acct.h
@@ -173,6 +171,7 @@ unifdef-y += atm.h
unifdef-y += atm_tcp.h
unifdef-y += audit.h
unifdef-y += auto_fs.h
+unifdef-y += auxvec.h
unifdef-y += binfmts.h
unifdef-y += capability.h
unifdef-y += capi.h
@@ -214,7 +213,7 @@ unifdef-y += hdreg.h
unifdef-y += hiddev.h
unifdef-y += hpet.h
unifdef-y += i2c.h
-unifdef-y += i2o-dev.h
+unifdef-y += i2c-dev.h
unifdef-y += icmp.h
unifdef-y += icmpv6.h
unifdef-y += if_addr.h
@@ -349,6 +348,7 @@ unifdef-y += videodev.h
unifdef-y += virtio_config.h
unifdef-y += virtio_blk.h
unifdef-y += virtio_net.h
+unifdef-y += vt.h
unifdef-y += wait.h
unifdef-y += wanrouter.h
unifdef-y += watchdog.h
diff --git a/include/linux/compiler-gcc3.h b/include/linux/compiler-gcc3.h
index 2d8c0f48f55..e5eb795f78a 100644
--- a/include/linux/compiler-gcc3.h
+++ b/include/linux/compiler-gcc3.h
@@ -7,10 +7,8 @@
#if __GNUC_MINOR__ >= 3
# define __used __attribute__((__used__))
-# define __attribute_used__ __used /* deprecated */
#else
# define __used __attribute__((__unused__))
-# define __attribute_used__ __used /* deprecated */
#endif
#if __GNUC_MINOR__ >= 4
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index ee7ca5de970..0ab3a323233 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -15,7 +15,6 @@
#endif
#define __used __attribute__((__used__))
-#define __attribute_used__ __used /* deprecated */
#define __must_check __attribute__((warn_unused_result))
#define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
#define __always_inline inline __attribute__((always_inline))
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index c68b67b86ef..d0e17e1657d 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -126,10 +126,6 @@ extern void __chk_io_ptr(const volatile void __iomem *);
* Mark functions that are referenced only in inline assembly as __used so
* the code is emitted even though it appears to be unreferenced.
*/
-#ifndef __attribute_used__
-# define __attribute_used__ /* deprecated */
-#endif
-
#ifndef __used
# define __used /* unimplemented */
#endif
@@ -175,4 +171,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
#define __cold
#endif
+/* Simple shorthand for a section definition */
+#ifndef __section
+# define __section(S) __attribute__ ((__section__(#S)))
+#endif
+
#endif /* __LINUX_COMPILER_H */
diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h
index e831759b2fb..278e3ef0533 100644
--- a/include/linux/elfnote.h
+++ b/include/linux/elfnote.h
@@ -76,7 +76,7 @@
typeof(desc) _desc \
__attribute__((aligned(sizeof(Elf##size##_Word)))); \
} _ELFNOTE_PASTE(_note_, unique) \
- __attribute_used__ \
+ __used \
__attribute__((section(".note." name), \
aligned(sizeof(Elf##size##_Word)), \
unused)) = { \
diff --git a/include/linux/init.h b/include/linux/init.h
index 5141381a752..2efbda01674 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -40,10 +40,10 @@
/* These are for everybody (although not all archs will actually
discard it in modules) */
-#define __init __attribute__ ((__section__ (".init.text"))) __cold
-#define __initdata __attribute__ ((__section__ (".init.data")))
-#define __exitdata __attribute__ ((__section__(".exit.data")))
-#define __exit_call __attribute_used__ __attribute__ ((__section__ (".exitcall.exit")))
+#define __init __section(.init.text) __cold
+#define __initdata __section(.init.data)
+#define __exitdata __section(.exit.data)
+#define __exit_call __used __section(.exitcall.exit)
/* modpost check for section mismatches during the kernel build.
* A section mismatch happens when there are references from a
@@ -52,25 +52,81 @@
* when early init has completed so all such references are potential bugs.
* For exit sections the same issue exists.
* The following markers are used for the cases where the reference to
- * the init/exit section (code or data) is valid and will teach modpost
- * not to issue a warning.
+ * the *init / *exit section (code or data) is valid and will teach
+ * modpost not to issue a warning.
* The markers follow same syntax rules as __init / __initdata. */
-#define __init_refok noinline __attribute__ ((__section__ (".text.init.refok")))
-#define __initdata_refok __attribute__ ((__section__ (".data.init.refok")))
-#define __exit_refok noinline __attribute__ ((__section__ (".exit.text.refok")))
+#define __ref __section(.ref.text) noinline
+#define __refdata __section(.ref.data)
+#define __refconst __section(.ref.rodata)
+
+/* backward compatibility note
+ * A few places hardcode the old section names:
+ * .text.init.refok
+ * .data.init.refok
+ * .exit.text.refok
+ * They should be converted to use the defines from this file
+ */
+
+/* compatibility defines */
+#define __init_refok __ref
+#define __initdata_refok __refdata
+#define __exit_refok __ref
+
#ifdef MODULE
-#define __exit __attribute__ ((__section__(".exit.text"))) __cold
+#define __exitused
#else
-#define __exit __attribute_used__ __attribute__ ((__section__(".exit.text"))) __cold
+#define __exitused __used
#endif
+#define __exit __section(.exit.text) __exitused __cold
+
+/* Used for HOTPLUG */
+#define __devinit __section(.devinit.text) __cold
+#define __devinitdata __section(.devinit.data)
+#define __devinitconst __section(.devinit.rodata)
+#define __devexit __section(.devexit.text) __exitused __cold
+#define __devexitdata __section(.devexit.data)
+#define __devexitconst __section(.devexit.rodata)
+
+/* Used for HOTPLUG_CPU */
+#define __cpuinit __section(.cpuinit.text) __cold
+#define __cpuinitdata __section(.cpuinit.data)
+#define __cpuinitconst __section(.cpuinit.rodata)
+#define __cpuexit __section(.cpuexit.text) __exitused __cold
+#define __cpuexitdata __section(.cpuexit.data)
+#define __cpuexitconst __section(.cpuexit.rodata)
+
+/* Used for MEMORY_HOTPLUG */
+#define __meminit __section(.meminit.text) __cold
+#define __meminitdata __section(.meminit.data)
+#define __meminitconst __section(.meminit.rodata)
+#define __memexit __section(.memexit.text) __exitused __cold
+#define __memexitdata __section(.memexit.data)
+#define __memexitconst __section(.memexit.rodata)
+
/* For assembly routines */
#define __INIT .section ".init.text","ax"
-#define __INIT_REFOK .section ".text.init.refok","ax"
#define __FINIT .previous
+
#define __INITDATA .section ".init.data","aw"
-#define __INITDATA_REFOK .section ".data.init.refok","aw"
+
+#define __DEVINIT .section ".devinit.text", "ax"
+#define __DEVINITDATA .section ".devinit.data", "aw"
+
+#define __CPUINIT .section ".cpuinit.text", "ax"
+#define __CPUINITDATA .section ".cpuinit.data", "aw"
+
+#define __MEMINIT .section ".meminit.text", "ax"
+#define __MEMINITDATA .section ".meminit.data", "aw"
+
+/* silence warnings when references are OK */
+#define __REF .section ".ref.text", "ax"
+#define __REFDATA .section ".ref.data", "aw"
+#define __REFCONST .section ".ref.rodata", "aw"
+/* backward compatibility */
+#define __INIT_REFOK .section __REF
+#define __INITDATA_REFOK .section __REFDATA
#ifndef __ASSEMBLY__
/*
@@ -108,7 +164,7 @@ void prepare_namespace(void);
*/
#define __define_initcall(level,fn,id) \
- static initcall_t __initcall_##fn##id __attribute_used__ \
+ static initcall_t __initcall_##fn##id __used \
__attribute__((__section__(".initcall" level ".init"))) = fn
/*
@@ -142,11 +198,11 @@ void prepare_namespace(void);
#define console_initcall(fn) \
static initcall_t __initcall_##fn \
- __attribute_used__ __attribute__((__section__(".con_initcall.init")))=fn
+ __used __section(.con_initcall.init) = fn
#define security_initcall(fn) \
static initcall_t __initcall_##fn \
- __attribute_used__ __attribute__((__section__(".security_initcall.init"))) = fn
+ __used __section(.security_initcall.init) = fn
struct obs_kernel_param {
const char *str;
@@ -163,8 +219,7 @@ struct obs_kernel_param {
#define __setup_param(str, unique_id, fn, early) \
static char __setup_str_##unique_id[] __initdata __aligned(1) = str; \
static struct obs_kernel_param __setup_##unique_id \
- __attribute_used__ \
- __attribute__((__section__(".init.setup"))) \
+ __used __section(.init.setup) \
__attribute__((aligned((sizeof(long))))) \
= { __setup_str_##unique_id, fn, early }
@@ -242,7 +297,7 @@ void __init parse_early_param(void);
#endif
/* Data marked not to be saved by software suspend */
-#define __nosavedata __attribute__ ((__section__ (".data.nosave")))
+#define __nosavedata __section(.data.nosave)
/* This means "can be init if no module support, otherwise module load
may call it." */
@@ -254,43 +309,6 @@ void __init parse_early_param(void);
#define __initdata_or_module __initdata
#endif /*CONFIG_MODULES*/
-#ifdef CONFIG_HOTPLUG
-#define __devinit
-#define __devinitdata
-#define __devexit
-#define __devexitdata
-#else
-#define __devinit __init
-#define __devinitdata __initdata
-#define __devexit __exit
-#define __devexitdata __exitdata
-#endif
-
-#ifdef CONFIG_HOTPLUG_CPU
-#define __cpuinit
-#define __cpuinitdata
-#define __cpuexit
-#define __cpuexitdata
-#else
-#define __cpuinit __init
-#define __cpuinitdata __initdata
-#define __cpuexit __exit
-#define __cpuexitdata __exitdata
-#endif
-
-#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_ACPI_HOTPLUG_MEMORY) \
- || defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)
-#define __meminit
-#define __meminitdata
-#define __memexit
-#define __memexitdata
-#else
-#define __meminit __init
-#define __meminitdata __initdata
-#define __memexit __exit
-#define __memexitdata __exitdata
-#endif
-
/* Functions marked as __devexit may be discarded at kernel link time, depending
on config options. Newer versions of binutils detect references from
retained sections to discarded sections and flag an error. Pointers to
diff --git a/include/linux/module.h b/include/linux/module.h
index aedc06be1de..ac481e2094f 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -178,7 +178,7 @@ void *__symbol_get_gpl(const char *symbol);
#define __CRC_SYMBOL(sym, sec) \
extern void *__crc_##sym __attribute__((weak)); \
static const unsigned long __kcrctab_##sym \
- __attribute_used__ \
+ __used \
__attribute__((section("__kcrctab" sec), unused)) \
= (unsigned long) &__crc_##sym;
#else
@@ -193,7 +193,7 @@ void *__symbol_get_gpl(const char *symbol);
__attribute__((section("__ksymtab_strings"))) \
= MODULE_SYMBOL_PREFIX #sym; \
static const struct kernel_symbol __ksymtab_##sym \
- __attribute_used__ \
+ __used \
__attribute__((section("__ksymtab" sec), unused)) \
= { (unsigned long)&sym, __kstrtab_##sym }
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 13410b20600..8126e55c5bd 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -18,7 +18,7 @@
#define __module_cat(a,b) ___module_cat(a,b)
#define __MODULE_INFO(tag, name, info) \
static const char __module_cat(name,__LINE__)[] \
- __attribute_used__ \
+ __used \
__attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
#else /* !MODULE */
#define __MODULE_INFO(tag, name, info)
@@ -72,7 +72,7 @@ struct kparam_array
BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)); \
static const char __param_str_##name[] = prefix #name; \
static struct kernel_param const __param_##name \
- __attribute_used__ \
+ __used \
__attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \
= { __param_str_##name, perm, set, get, { arg } }
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 0dd93bb62fb..ae1006322f8 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -867,7 +867,7 @@ enum pci_fixup_pass {
/* Anonymous variables would be nice... */
#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook) \
- static const struct pci_fixup __pci_fixup_##name __attribute_used__ \
+ static const struct pci_fixup __pci_fixup_##name __used \
__attribute__((__section__(#section))) = { vendor, device, hook };
#define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \
DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 17:02:45 +0000