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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 21:51:09 +0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 21:51:09 +0400 |
commit | 81a07d7588d376c530d006e24d7981304ce96e16 (patch) | |
tree | 1608e094c88b9702c86cf2e6f65339aab9ea3f3f /include/linux | |
parent | 8871e73fdbde07d0a41393f7ee30787b65387b36 (diff) | |
parent | 8501a2fbe762b21d2504ed3aca3b52be61b5e6e4 (diff) | |
download | linux-81a07d7588d376c530d006e24d7981304ce96e16.tar.xz |
Merge branch 'x86-64'
* x86-64: (83 commits)
[PATCH] x86_64: x86_64 stack usage debugging
[PATCH] x86_64: (resend) x86_64 stack overflow debugging
[PATCH] x86_64: msi_apic.c build fix
[PATCH] x86_64: i386/x86-64 Add nmi watchdog support for new Intel CPUs
[PATCH] x86_64: Avoid broadcasting NMI IPIs
[PATCH] x86_64: fix apic error on bootup
[PATCH] x86_64: enlarge window for stack growth
[PATCH] x86_64: Minor string functions optimizations
[PATCH] x86_64: Move export symbols to their C functions
[PATCH] x86_64: Standardize i386/x86_64 handling of NMI_VECTOR
[PATCH] x86_64: Fix modular pc speaker
[PATCH] x86_64: remove sys32_ni_syscall()
[PATCH] x86_64: Do not use -ffunction-sections for modules
[PATCH] x86_64: Add cpu_relax to apic_wait_icr_idle
[PATCH] x86_64: adjust kstack_depth_to_print default
[PATCH] i386/x86-64: adjust /proc/interrupts column headings
[PATCH] x86_64: Fix race in cpu_local_* on preemptible kernels
[PATCH] x86_64: Fix fast check in safe_smp_processor_id
[PATCH] x86_64: x86_64 setup.c - printing cmp related boottime information
[PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status
...
Manual resolve of trivial conflict in arch/i386/kernel/Makefile
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/bitmap.h | 5 | ||||
-rw-r--r-- | include/linux/compat.h | 2 | ||||
-rw-r--r-- | include/linux/kernel.h | 7 | ||||
-rw-r--r-- | include/linux/module.h | 3 | ||||
-rw-r--r-- | include/linux/sysctl.h | 2 | ||||
-rw-r--r-- | include/linux/time.h | 11 | ||||
-rw-r--r-- | include/linux/unwind.h | 127 |
7 files changed, 153 insertions, 4 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index d9ed27969855..dcc5de7cc487 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -24,6 +24,9 @@ * The available bitmap operations and their rough meaning in the * case that the bitmap is a single unsigned long are thus: * + * Note that nbits should be always a compile time evaluable constant. + * Otherwise many inlines will generate horrible code. + * * bitmap_zero(dst, nbits) *dst = 0UL * bitmap_fill(dst, nbits) *dst = ~0UL * bitmap_copy(dst, src, nbits) *dst = *src @@ -244,6 +247,8 @@ static inline int bitmap_full(const unsigned long *src, int nbits) static inline int bitmap_weight(const unsigned long *src, int nbits) { + if (nbits <= BITS_PER_LONG) + return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)); return __bitmap_weight(src, nbits); } diff --git a/include/linux/compat.h b/include/linux/compat.h index dda1697ec753..9760753e662b 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -226,5 +226,7 @@ static inline int compat_timespec_compare(struct compat_timespec *lhs, asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); +extern int compat_printk(const char *fmt, ...); + #endif /* CONFIG_COMPAT */ #endif /* _LINUX_COMPAT_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 3c5e4c2e517d..5c1ec1f84eab 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -32,6 +32,7 @@ extern const char linux_banner[]; #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) #define ALIGN(x,a) (((x)+(a)-1)&~((a)-1)) +#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) #define KERN_EMERG "<0>" /* system is unusable */ #define KERN_ALERT "<1>" /* action must be taken immediately */ @@ -336,6 +337,12 @@ struct sysinfo { /* Force a compilation error if condition is true */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) +/* Force a compilation error if condition is true, but also produce a + result (of value 0 and type size_t), so the expression can be used + e.g. in a structure initializer (or where-ever else comma expressions + aren't permitted). */ +#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) + /* Trap pasters of __FUNCTION__ at compile-time */ #define __FUNCTION__ (__func__) diff --git a/include/linux/module.h b/include/linux/module.h index 2d366098eab5..9ebbb74b7b72 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -285,6 +285,9 @@ struct module /* The size of the executable code in each section. */ unsigned long init_text_size, core_text_size; + /* The handle returned from unwind_add_table. */ + void *unwind_info; + /* Arch-specific module values */ struct mod_arch_specific arch; diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 6a60770984e9..349ef908a222 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -148,9 +148,11 @@ enum KERN_SPIN_RETRY=70, /* int: number of spinlock retries */ KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */ KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ + KERN_COMPAT_LOG=73, /* int: print compat layer messages */ }; + /* CTL_VM names: */ enum { diff --git a/include/linux/time.h b/include/linux/time.h index 65dd85b2105e..c05f8bb9a323 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -28,10 +28,13 @@ struct timezone { #ifdef __KERNEL__ /* Parameters used to convert the timespec values: */ -#define MSEC_PER_SEC 1000L -#define USEC_PER_SEC 1000000L -#define NSEC_PER_SEC 1000000000L -#define NSEC_PER_USEC 1000L +#define MSEC_PER_SEC 1000L +#define USEC_PER_MSEC 1000L +#define NSEC_PER_USEC 1000L +#define NSEC_PER_MSEC 1000000L +#define USEC_PER_SEC 1000000L +#define NSEC_PER_SEC 1000000000L +#define FSEC_PER_SEC 1000000000000000L static inline int timespec_equal(struct timespec *a, struct timespec *b) { diff --git a/include/linux/unwind.h b/include/linux/unwind.h new file mode 100644 index 000000000000..ce48e2cd37a2 --- /dev/null +++ b/include/linux/unwind.h @@ -0,0 +1,127 @@ +#ifndef _LINUX_UNWIND_H +#define _LINUX_UNWIND_H + +/* + * Copyright (C) 2002-2006 Novell, Inc. + * Jan Beulich <jbeulich@novell.com> + * This code is released under version 2 of the GNU GPL. + * + * A simple API for unwinding kernel stacks. This is used for + * debugging and error reporting purposes. The kernel doesn't need + * full-blown stack unwinding with all the bells and whistles, so there + * is not much point in implementing the full Dwarf2 unwind API. + */ + +#include <linux/config.h> + +struct module; + +#ifdef CONFIG_STACK_UNWIND + +#include <asm/unwind.h> + +#ifndef ARCH_UNWIND_SECTION_NAME +#define ARCH_UNWIND_SECTION_NAME ".eh_frame" +#endif + +/* + * Initialize unwind support. + */ +extern void unwind_init(void); + +#ifdef CONFIG_MODULES + +extern void *unwind_add_table(struct module *, + const void *table_start, + unsigned long table_size); + +extern void unwind_remove_table(void *handle, int init_only); + +#endif + +extern int unwind_init_frame_info(struct unwind_frame_info *, + struct task_struct *, + /*const*/ struct pt_regs *); + +/* + * Prepare to unwind a blocked task. + */ +extern int unwind_init_blocked(struct unwind_frame_info *, + struct task_struct *); + +/* + * Prepare to unwind the currently running thread. + */ +extern int unwind_init_running(struct unwind_frame_info *, + asmlinkage int (*callback)(struct unwind_frame_info *, + void *arg), + void *arg); + +/* + * Unwind to previous to frame. Returns 0 if successful, negative + * number in case of an error. + */ +extern int unwind(struct unwind_frame_info *); + +/* + * Unwind until the return pointer is in user-land (or until an error + * occurs). Returns 0 if successful, negative number in case of + * error. + */ +extern int unwind_to_user(struct unwind_frame_info *); + +#else + +struct unwind_frame_info {}; + +static inline void unwind_init(void) {} + +#ifdef CONFIG_MODULES + +static inline void *unwind_add_table(struct module *mod, + const void *table_start, + unsigned long table_size) +{ + return NULL; +} + +#endif + +static inline void unwind_remove_table(void *handle, int init_only) +{ +} + +static inline int unwind_init_frame_info(struct unwind_frame_info *info, + struct task_struct *tsk, + const struct pt_regs *regs) +{ + return -ENOSYS; +} + +static inline int unwind_init_blocked(struct unwind_frame_info *info, + struct task_struct *tsk) +{ + return -ENOSYS; +} + +static inline int unwind_init_running(struct unwind_frame_info *info, + asmlinkage int (*cb)(struct unwind_frame_info *, + void *arg), + void *arg) +{ + return -ENOSYS; +} + +static inline int unwind(struct unwind_frame_info *info) +{ + return -ENOSYS; +} + +static inline int unwind_to_user(struct unwind_frame_info *info) +{ + return -ENOSYS; +} + +#endif + +#endif /* _LINUX_UNWIND_H */ |