diff options
Diffstat (limited to 'arch')
35 files changed, 17 insertions, 140 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 81869a5..0f298f9 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -517,6 +517,11 @@ config HAVE_ARCH_MMAP_RND_BITS - ARCH_MMAP_RND_BITS_MIN - ARCH_MMAP_RND_BITS_MAX +config HAVE_EXIT_THREAD + bool + help + An architecture implements exit_thread. + config ARCH_MMAP_RND_BITS_MIN int diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 84d1326..b483156 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -210,14 +210,6 @@ start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) } EXPORT_SYMBOL(start_thread); -/* - * Free current thread data structures etc.. - */ -void -exit_thread(void) -{ -} - void flush_thread(void) { diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index a3f750e..b5db9e7 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -183,13 +183,6 @@ void flush_thread(void) { } -/* - * Free any architecture-specific thread data structures, etc. - */ -void exit_thread(void) -{ -} - int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) { return 0; diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b99d25b..956d3575 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -50,6 +50,7 @@ config ARM select HAVE_DMA_CONTIGUOUS if MMU select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU + select HAVE_EXIT_THREAD select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 48eea68..6cd2612 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -200,13 +200,6 @@ void show_regs(struct pt_regs * regs) __show_regs(regs); } -/* - * Free current thread data structures etc.. - */ -void exit_thread(void) -{ -} - static void tls_thread_flush(void) { asm ("msr tpidr_el0, xzr"); diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 18b8877..e43519a 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -4,6 +4,7 @@ config AVR32 # that we usually don't need on AVR32. select EXPERT select HAVE_CLK + select HAVE_EXIT_THREAD select HAVE_OPROFILE select HAVE_KPROBES select VIRT_TO_BUS diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 7acd466..0c265ab 100644 --- a/arch/blackfin/include/asm/processor.h +++ b/arch/blackfin/include/asm/processor.h @@ -76,13 +76,6 @@ static inline void release_thread(struct task_struct *dead_task) } /* - * Free current thread data structures etc.. - */ -static inline void exit_thread(void) -{ -} - -/* * Return saved PC of a blocked thread. */ #define thread_saved_pc(tsk) (tsk->thread.pc) diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c index 3ae9f5a..0ee7686 100644 --- a/arch/c6x/kernel/process.c +++ b/arch/c6x/kernel/process.c @@ -82,10 +82,6 @@ void flush_thread(void) { } -void exit_thread(void) -{ -} - /* * Do necessary setup to start up a newly executed thread. */ diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 99bda1b..5c0ca8a 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -59,6 +59,7 @@ config CRIS select GENERIC_IOMAP select MODULES_USE_ELF_RELA select CLONE_BACKWARDS2 + select HAVE_EXIT_THREAD if ETRAX_ARCH_V32 select OLD_SIGSUSPEND select OLD_SIGACTION select GPIOLIB diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c index 02b7834..96e5afe 100644 --- a/arch/cris/arch-v10/kernel/process.c +++ b/arch/cris/arch-v10/kernel/process.c @@ -35,15 +35,6 @@ void default_idle(void) local_irq_enable(); } -/* - * Free current thread data structures etc.. - */ - -void exit_thread(void) -{ - /* Nothing needs to be done. */ -} - /* if the watchdog is enabled, we can simply disable interrupts and go * into an eternal loop, and the watchdog will reset the CPU after 0.1s * if on the other hand the watchdog wasn't enabled, we just enable it and wait diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h index ae8d423..73f0a79 100644 --- a/arch/frv/include/asm/processor.h +++ b/arch/frv/include/asm/processor.h @@ -97,13 +97,6 @@ extern asmlinkage void *restore_user_regs(const struct user_context *target, ... #define forget_segments() do { } while (0) /* - * Free current thread data structures etc.. - */ -static inline void exit_thread(void) -{ -} - -/* * Return saved PC of a blocked thread. */ extern unsigned long thread_saved_pc(struct task_struct *tsk); diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h index 54e3fd8..111df73 100644 --- a/arch/h8300/include/asm/processor.h +++ b/arch/h8300/include/asm/processor.h @@ -111,13 +111,6 @@ static inline void release_thread(struct task_struct *dead_task) } /* - * Free current thread data structures etc.. - */ -static inline void exit_thread(void) -{ -} - -/* * Return saved PC of a blocked thread. */ unsigned long thread_saved_pc(struct task_struct *tsk); diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index a9ebd47..d9edfd3 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -137,13 +137,6 @@ void release_thread(struct task_struct *dead_task) } /* - * Free any architecture-specific thread data structures, etc. - */ -void exit_thread(void) -{ -} - -/* * Some archs flush debug and FPU info here */ void flush_thread(void) diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index b534eba..f80758c 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -18,6 +18,7 @@ config IA64 select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select HAVE_UNSTABLE_SCHED_CLOCK + select HAVE_EXIT_THREAD select HAVE_IDE select HAVE_OPROFILE select HAVE_KPROBES diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c index e69221d..a88b1f0 100644 --- a/arch/m32r/kernel/process.c +++ b/arch/m32r/kernel/process.c @@ -101,15 +101,6 @@ void show_regs(struct pt_regs * regs) #endif } -/* - * Free current thread data structures etc.. - */ -void exit_thread(void) -{ - /* Nothing to do. */ - DPRINTK("pid = %d\n", current->pid); -} - void flush_thread(void) { DPRINTK("pid = %d\n", current->pid); diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index 20dda1d..a6ce2ec 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h @@ -153,13 +153,6 @@ static inline void release_thread(struct task_struct *dead_task) { } -/* - * Free current thread data structures etc.. - */ -static inline void exit_thread(void) -{ -} - extern unsigned long thread_saved_pc(struct task_struct *tsk); unsigned long get_wchan(struct task_struct *p); diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig index a0fa88d..e47a08d 100644 --- a/arch/metag/Kconfig +++ b/arch/metag/Kconfig @@ -11,6 +11,7 @@ config METAG select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_STACKOVERFLOW select HAVE_DYNAMIC_FTRACE + select HAVE_EXIT_THREAD select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER select HAVE_KERNEL_BZIP2 diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h index 0838ca6..a0333eb 100644 --- a/arch/metag/include/asm/processor.h +++ b/arch/metag/include/asm/processor.h @@ -134,8 +134,6 @@ static inline void release_thread(struct task_struct *dead_task) #define copy_segments(tsk, mm) do { } while (0) #define release_segments(mm) do { } while (0) -extern void exit_thread(void); - /* * Return saved PC of a blocked thread. */ diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h index 497a988..c38d0dd 100644 --- a/arch/microblaze/include/asm/processor.h +++ b/arch/microblaze/include/asm/processor.h @@ -70,11 +70,6 @@ static inline void release_thread(struct task_struct *dead_task) { } -/* Free all resources held by a thread. */ -static inline void exit_thread(void) -{ -} - extern unsigned long thread_saved_pc(struct task_struct *t); extern unsigned long get_wchan(struct task_struct *p); @@ -127,11 +122,6 @@ static inline void release_thread(struct task_struct *dead_task) { } -/* Free current thread data structures etc. */ -static inline void exit_thread(void) -{ -} - /* Return saved (kernel) PC of a blocked thread. */ # define thread_saved_pc(tsk) \ ((tsk)->thread.regs ? (tsk)->thread.regs->r15 : 0) diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index a6b3dc5..411c971 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -73,10 +73,6 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) regs->regs[29] = sp; } -void exit_thread(void) -{ -} - int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) { /* diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 06ddb55..9627e81 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -1,5 +1,6 @@ config MN10300 def_bool y + select HAVE_EXIT_THREAD select HAVE_OPROFILE select HAVE_UID16 select GENERIC_IRQ_SHOW diff --git a/arch/nios2/include/asm/processor.h b/arch/nios2/include/asm/processor.h index c2ba45c..1c953f0 100644 --- a/arch/nios2/include/asm/processor.h +++ b/arch/nios2/include/asm/processor.h @@ -75,11 +75,6 @@ static inline void release_thread(struct task_struct *dead_task) { } -/* Free current thread data structures etc.. */ -static inline void exit_thread(void) -{ -} - /* Return saved PC of a blocked thread. */ #define thread_saved_pc(tsk) ((tsk)->thread.kregs->ea) diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h index 4d235e3..70334c9 100644 --- a/arch/openrisc/include/asm/processor.h +++ b/arch/openrisc/include/asm/processor.h @@ -85,15 +85,6 @@ void release_thread(struct task_struct *); unsigned long get_wchan(struct task_struct *p); /* - * Free current thread data structures etc.. - */ - -extern inline void exit_thread(void) -{ - /* Nothing needs to be done. */ -} - -/* * Return saved PC of a blocked thread. For now, this is the "user" PC */ extern unsigned long thread_saved_pc(struct task_struct *t); diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 809905a..4063943 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -144,13 +144,6 @@ void machine_power_off(void) void (*pm_power_off)(void) = machine_power_off; EXPORT_SYMBOL(pm_power_off); -/* - * Free current thread data structures etc.. - */ -void exit_thread(void) -{ -} - void flush_thread(void) { /* Only needs to handle fpu stuff or perf monitors. diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index ea8a28f..e2f12cb 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1329,10 +1329,6 @@ void show_regs(struct pt_regs * regs) show_instructions(regs); } -void exit_thread(void) -{ -} - void flush_thread(void) { #ifdef CONFIG_HAVE_HW_BREAKPOINT diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index de0fcc0..e2c9aaa 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -134,6 +134,7 @@ config S390 select HAVE_DMA_API_DEBUG select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS + select HAVE_EXIT_THREAD select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c index a1519ad3..aae9480 100644 --- a/arch/score/kernel/process.c +++ b/arch/score/kernel/process.c @@ -56,8 +56,6 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) regs->regs[0] = sp; } -void exit_thread(void) {} - /* * When a process does an "exec", machine state like FPU and debug * registers need to be reset. This is a hook function for that. diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 7ed20fc..cb93af8 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -71,6 +71,7 @@ config SUPERH32 config SUPERH64 def_bool ARCH = "sh64" + select HAVE_EXIT_THREAD select KALLSYMS config ARCH_DEFCONFIG diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 2885fc9..ee12e94 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -76,13 +76,6 @@ void start_thread(struct pt_regs *regs, unsigned long new_pc, } EXPORT_SYMBOL(start_thread); -/* - * Free current thread data structures etc.. - */ -void exit_thread(void) -{ -} - void flush_thread(void) { struct task_struct *tsk = current; diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index db0a26c..27b3a0a 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -20,6 +20,7 @@ config SPARC select HAVE_OPROFILE select HAVE_ARCH_KGDB if !SMP || SPARC64 select HAVE_ARCH_TRACEHOOK + select HAVE_EXIT_THREAD select SYSCTL_EXCEPTION_TRACE select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select RTC_CLASS diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 8171930..1747462 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -3,6 +3,7 @@ config TILE def_bool y + select HAVE_EXIT_THREAD select HAVE_PERF_EVENTS select USE_PMC if PERF_EVENTS select HAVE_DMA_API_DEBUG diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 48af59a..0b04711 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -103,10 +103,6 @@ void interrupt_end(void) tracehook_notify_resume(regs); } -void exit_thread(void) -{ -} - int get_current_pid(void) { return task_pid_nr(current); diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c index b008e99..00299c9 100644 --- a/arch/unicore32/kernel/process.c +++ b/arch/unicore32/kernel/process.c @@ -201,13 +201,6 @@ void show_regs(struct pt_regs *regs) __backtrace(); } -/* - * Free current thread data structures etc.. - */ -void exit_thread(void) -{ -} - void flush_thread(void) { struct thread_info *thread = current_thread_info(); diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ace79d2..8ff5b3b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -105,6 +105,7 @@ config X86 select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_EFFICIENT_UNALIGNED_ACCESS + select HAVE_EXIT_THREAD select HAVE_FENTRY if X86_64 select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_FP_TEST diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 85257af..64336f6 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -14,6 +14,7 @@ config XTENSA select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK select HAVE_DMA_API_DEBUG + select HAVE_EXIT_THREAD select HAVE_FUNCTION_TRACER select HAVE_FUTEX_CMPXCHG if !MMU select HAVE_HW_BREAKPOINT if PERF_EVENTS |
