diff options
Diffstat (limited to 'arch')
75 files changed, 88 insertions, 439 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index a3fd8a2..ab80a80 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -175,6 +175,7 @@ machine_power_off(void) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); dik_show_regs(regs, NULL); } diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 4037461..affccb9 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -169,13 +169,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) dik_show_trace(sp); } -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) { diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index a63ff84..ca0207b 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -220,13 +220,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) show_stacktrace(tsk, NULL); } -/* Expected by Rest of kernel code */ -void dump_stack(void) -{ - show_stacktrace(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - /* Another API expected by schedular, shows up in "ps" as Wait Channel * Ofcourse just returning schedule( ) would be pointless so unwind until * the function is not in schedular code diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index 7c10873..0aec0198 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -71,7 +71,7 @@ void print_task_path_n_nm(struct task_struct *tsk, char *buf) } done: - pr_info("%s, TGID %u\n", path_nm, tsk->tgid); + pr_info("Path: %s\n", path_nm); } EXPORT_SYMBOL(print_task_path_n_nm); @@ -163,6 +163,7 @@ void show_regs(struct pt_regs *regs) return; print_task_path_n_nm(tsk, buf); + show_regs_print_info(KERN_INFO); if (current->thread.cause_code) show_ecr_verbose(regs); diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 9b6de8c..8ff0ecd 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -254,7 +254,7 @@ static void sysrq_etm_dump(int key) static struct sysrq_key_op sysrq_etm_op = { .handler = sysrq_etm_dump, - .help_msg = "ETM buffer dump", + .help_msg = "etm-buffer-dump(v)", .action_msg = "etm", }; diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index c9a5e2c..ae58d3b 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -225,11 +225,8 @@ void __show_regs(struct pt_regs *regs) unsigned long flags; char buf[64]; - printk("CPU: %d %s (%s %.*s)\n", - raw_smp_processor_id(), print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); + print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("LR is at %s\n", regs->ARM_lr); printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n" @@ -284,7 +281,6 @@ void __show_regs(struct pt_regs *regs) void show_regs(struct pt_regs * regs) { printk("\n"); - printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm); __show_regs(regs); dump_stack(); } diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 1c08911..18b32e8 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -204,13 +204,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) } #endif -void dump_stack(void) -{ - dump_backtrace(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *tsk, unsigned long *sp) { dump_backtrace(NULL, tsk); diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 6f3822f..f491972 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -145,11 +145,7 @@ void __show_regs(struct pt_regs *regs) { int i; - printk("CPU: %d %s (%s %.*s)\n", - raw_smp_processor_id(), print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("LR is at %s\n", regs->regs[30]); printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n", @@ -166,7 +162,6 @@ void __show_regs(struct pt_regs *regs) void show_regs(struct pt_regs * regs) { printk("\n"); - printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm); __show_regs(regs); } diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index b3c5f62..61d7dd2 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -167,13 +167,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) } } -void dump_stack(void) -{ - dump_backtrace(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *tsk, unsigned long *sp) { dump_backtrace(NULL, tsk); diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index 073c3c2..e7b6149 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c @@ -204,14 +204,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) show_stack_log_lvl(tsk, (unsigned long)stack, NULL, ""); } -void dump_stack(void) -{ - unsigned long stack; - - show_trace_log_lvl(current, &stack, NULL, ""); -} -EXPORT_SYMBOL(dump_stack); - static const char *cpu_modes[] = { "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1", "Interrupt level 2", "Interrupt level 3", "Exception", "NMI" @@ -223,6 +215,8 @@ void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl) unsigned long lr = regs->lr; unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT; + show_regs_print_info(log_lvl); + if (!user_mode(regs)) { sp = (unsigned long)regs + FRAME_SIZE_FULL; @@ -260,9 +254,6 @@ void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl) regs->sr & SR_I0M ? '0' : '.', regs->sr & SR_GM ? 'G' : 'g'); printk("%sCPU Mode: %s\n", log_lvl, cpu_modes[mode]); - printk("%sProcess: %s [%d] (task: %p thread: %p)\n", - log_lvl, current->comm, current->pid, current, - task_thread_info(current)); } void show_regs(struct pt_regs *regs) diff --git a/arch/blackfin/kernel/dumpstack.c b/arch/blackfin/kernel/dumpstack.c index 5cfbaa2..95ba6d9 100644 --- a/arch/blackfin/kernel/dumpstack.c +++ b/arch/blackfin/kernel/dumpstack.c @@ -168,6 +168,7 @@ void dump_stack(void) #endif trace_buffer_save(tflags); dump_bfin_trace_buffer(); + dump_stack_print_info(KERN_DEFAULT); show_stack(current, &stack); trace_buffer_restore(tflags); } diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c index f7f7a18..c36efa0 100644 --- a/arch/blackfin/kernel/trace.c +++ b/arch/blackfin/kernel/trace.c @@ -853,6 +853,8 @@ void show_regs(struct pt_regs *fp) unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic(); pr_notice("\n"); + show_regs_print_info(KERN_NOTICE); + if (CPUID != bfin_cpuid()) pr_notice("Compiled for cpu family 0x%04x (Rev %d), " "but running on:0x%04x (Rev %d)\n", diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c index 1be74e5..dcc2c2f 100644 --- a/arch/c6x/kernel/traps.c +++ b/arch/c6x/kernel/traps.c @@ -31,6 +31,7 @@ void __init trap_init(void) void show_regs(struct pt_regs *regs) { pr_err("\n"); + show_regs_print_info(KERN_ERR); pr_err("PC: %08lx SP: %08lx\n", regs->pc, regs->sp); pr_err("Status: %08lx ORIG_A4: %08lx\n", regs->csr, regs->orig_a4); pr_err("A0: %08lx B0: %08lx\n", regs->a0, regs->b0); @@ -67,15 +68,6 @@ void show_regs(struct pt_regs *regs) pr_err("A31: %08lx B31: %08lx\n", regs->a31, regs->b31); } -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - - void die(char *str, struct pt_regs *fp, int nr) { console_verbose(); diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c index 2ba23c1..753e9a0 100644 --- a/arch/cris/arch-v10/kernel/process.c +++ b/arch/cris/arch-v10/kernel/process.c @@ -176,6 +176,9 @@ unsigned long get_wchan(struct task_struct *p) void show_regs(struct pt_regs * regs) { unsigned long usp = rdusp(); + + show_regs_print_info(KERN_DEFAULT); + printk("IRP: %08lx SRP: %08lx DCCR: %08lx USP: %08lx MOF: %08lx\n", regs->irp, regs->srp, regs->dccr, usp, regs->mof ); printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n", diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c index 57451fa..cebd32e 100644 --- a/arch/cris/arch-v32/kernel/process.c +++ b/arch/cris/arch-v32/kernel/process.c @@ -164,6 +164,9 @@ get_wchan(struct task_struct *p) void show_regs(struct pt_regs * regs) { unsigned long usp = rdusp(); + + show_regs_print_info(KERN_DEFAULT); + printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n", regs->erp, regs->srp, regs->ccs, usp, regs->mof); diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c index a11ad32..0ffda73 100644 --- a/arch/cris/kernel/traps.c +++ b/arch/cris/kernel/traps.c @@ -147,13 +147,6 @@ show_stack(void) #endif void -dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - -void set_nmi_handler(void (*handler)(struct pt_regs *)) { nmi_handler = handler; diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c index 5cfd142..4bff48c 100644 --- a/arch/frv/kernel/traps.c +++ b/arch/frv/kernel/traps.c @@ -466,17 +466,6 @@ asmlinkage void compound_exception(unsigned long esfr1, BUG(); } /* end compound_exception() */ -/*****************************************************************************/ -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *task, unsigned long *sp) { } @@ -508,6 +497,7 @@ void show_regs(struct pt_regs *regs) int loop; printk("\n"); + show_regs_print_info(KERN_DEFAULT); printk("Frame: @%08lx [%s]\n", (unsigned long) regs, @@ -522,8 +512,6 @@ void show_regs(struct pt_regs *regs) else printk(" | "); } - - printk("Process %s (pid: %d)\n", current->comm, current->pid); } void die_if_kernel(const char *str, ...) diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c index a17d2cd..1a744ab 100644 --- a/arch/h8300/kernel/process.c +++ b/arch/h8300/kernel/process.c @@ -83,6 +83,8 @@ void machine_power_off(void) void show_regs(struct pt_regs * regs) { + show_regs_print_info(KERN_DEFAULT); + printk("\nPC: %08lx Status: %02x", regs->pc, regs->ccr); printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx", diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c index 7833aa3..cfe494d 100644 --- a/arch/h8300/kernel/traps.c +++ b/arch/h8300/kernel/traps.c @@ -164,10 +164,3 @@ void show_trace_task(struct task_struct *tsk) { show_stack(tsk,(unsigned long *)tsk->thread.esp0); } - -void dump_stack(void) -{ - show_stack(NULL,NULL); -} - -EXPORT_SYMBOL(dump_stack); diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c index be5e2dd..cc2171b 100644 --- a/arch/hexagon/kernel/traps.c +++ b/arch/hexagon/kernel/traps.c @@ -191,14 +191,6 @@ void show_stack(struct task_struct *task, unsigned long *fp) do_show_stack(task, fp, 0); } -void dump_stack(void) -{ - unsigned long *fp; - asm("%0 = r30" : "=r" (fp)); - show_stack(current, fp); -} -EXPORT_SYMBOL(dump_stack); - int die(const char *str, struct pt_regs *regs, long err) { static struct { diff --git a/arch/hexagon/kernel/vm_events.c b/arch/hexagon/kernel/vm_events.c index 9b5a4a2..f337281 100644 --- a/arch/hexagon/kernel/vm_events.c +++ b/arch/hexagon/kernel/vm_events.c @@ -33,6 +33,8 @@ */ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_EMERG); + printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n", regs->restart_r0, regs->syscall_nr); printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds); diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index a26fc64..55d4ba4 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -96,21 +96,13 @@ show_stack (struct task_struct *task, unsigned long *sp) } void -dump_stack (void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - -void show_regs (struct pt_regs *regs) { unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri; print_modules(); - printk("\nPid: %d, CPU %d, comm: %20s\n", task_pid_nr(current), - smp_processor_id(), current->comm); + printk("\n"); + show_regs_print_info(KERN_DEFAULT); printk("psr : %016lx ifs : %016lx ip : [<%016lx>] %s (%s)\n", regs->cr_ipsr, regs->cr_ifs, ip, print_tainted(), init_utsname()->release); diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 2029cc0..13bfdd2 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -1063,6 +1063,7 @@ check_bugs (void) static int __init run_dmi_scan(void) { dmi_scan_machine(); + dmi_set_dump_stack_arch_desc(); return 0; } core_initcall(run_dmi_scan); diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c index e2d0490..e69221d 100644 --- a/arch/m32r/kernel/process.c +++ b/arch/m32r/kernel/process.c @@ -73,6 +73,8 @@ void machine_power_off(void) void show_regs(struct pt_regs * regs) { printk("\n"); + show_regs_print_info(KERN_DEFAULT); + printk("BPC[%08lx]:PSW[%08lx]:LR [%08lx]:FP [%08lx]\n", \ regs->bpc, regs->psw, regs->lr, regs->fp); printk("BBPC[%08lx]:BBPSW[%08lx]:SPU[%08lx]:SPI[%08lx]\n", \ diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c index 9fe3467..a7a424f 100644 --- a/arch/m32r/kernel/traps.c +++ b/arch/m32r/kernel/traps.c @@ -167,15 +167,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) show_trace(task, sp); } -void dump_stack(void) -{ - unsigned long stack; - - show_trace(current, &stack); -} - -EXPORT_SYMBOL(dump_stack); - static void show_registers(struct pt_regs *regs) { int i = 0; diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index f32ab22..88fcd8c 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -992,18 +992,6 @@ void show_stack(struct task_struct *task, unsigned long *stack) } /* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_trace(&stack); -} - -EXPORT_SYMBOL(dump_stack); - -/* * The vector number returned in the frame pointer may also contain * the "fs" (Fault Status) bits on ColdFire. These are in the bottom * 2 bits, and upper 2 bits. So we need to mask out the real vector diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c index dc59235..483dff9 100644 --- a/arch/metag/kernel/process.c +++ b/arch/metag/kernel/process.c @@ -129,6 +129,8 @@ void show_regs(struct pt_regs *regs) "D1.7 " }; + show_regs_print_info(KERN_INFO); + pr_info(" pt_regs @ %p\n", regs); pr_info(" SaveMask = 0x%04hx\n", regs->ctx.SaveMask); pr_info(" Flags = 0x%04hx (%c%c%c%c)\n", regs->ctx.Flags, diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c index 8961f24..2ceeaae 100644 --- a/arch/metag/kernel/traps.c +++ b/arch/metag/kernel/traps.c @@ -987,9 +987,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) show_trace(tsk, sp, NULL); } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index 7cce2e9..a558938 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -20,6 +20,8 @@ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_INFO); + pr_info(" Registers dump: mode=%X\r\n", regs->pt_mode); pr_info(" r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n", regs->r1, regs->r2, regs->r3, regs->r4); diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c index 30e6b50..cb61953 100644 --- a/arch/microblaze/kernel/traps.c +++ b/arch/microblaze/kernel/traps.c @@ -75,9 +75,3 @@ void show_stack(struct task_struct *task, unsigned long *sp) debug_show_held_locks(task); } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index c3abb881..2522551 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -206,19 +206,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) show_stacktrace(task, ®s); } -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - struct pt_regs regs; - - prepare_frametrace(®s); - show_backtrace(current, ®s); -} - -EXPORT_SYMBOL(dump_stack); - static void show_code(unsigned int __user *pc) { long i; @@ -244,7 +231,7 @@ static void __show_regs(const struct pt_regs *regs) unsigned int cause = regs->cp0_cause; int i; - printk("Cpu %d\n", smp_processor_id()); + show_regs_print_info(KERN_DEFAULT); /* * Saved main processor registers diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index 2da39fb..3707da5 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -97,6 +97,7 @@ void machine_power_off(void) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); } /* diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index b900e5a..a7a987c 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -294,17 +294,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) } /* - * the architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - -/* * dump the register file in the specified exception frame */ void show_registers_only(struct pt_regs *regs) diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index 00c233b..386af25 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -90,6 +90,7 @@ void show_regs(struct pt_regs *regs) { extern void show_registers(struct pt_regs *regs); + show_regs_print_info(KERN_DEFAULT); /* __PHX__ cleanup this mess */ show_registers(regs); } diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c index 5cce396..3d3f606 100644 --- a/arch/openrisc/kernel/traps.c +++ b/arch/openrisc/kernel/traps.c @@ -105,17 +105,6 @@ void show_trace_task(struct task_struct *tsk) */ } -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - void show_registers(struct pt_regs *regs) { int i; diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 0339181..433e75a 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -1,5 +1,6 @@ config PARISC def_bool y + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select HAVE_IDE select HAVE_OPROFILE select HAVE_FUNCTION_TRACER if 64BIT diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug index 7305ac8..bc989e5 100644 --- a/arch/parisc/Kconfig.debug +++ b/arch/parisc/Kconfig.debug @@ -12,18 +12,4 @@ config DEBUG_RODATA portion of the kernel code won't be covered by a TLB anymore. If in doubt, say "N". -config DEBUG_STRICT_USER_COPY_CHECKS - bool "Strict copy size checks" - depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time failures. - - The copy_from_user() etc checks are there to help test if there - are sufficient security checks on the length argument of - the copy operation, by having gcc prove that the argument is - within bounds. - - If unsure, or if you run an older (pre 4.4) gcc, say N. - endmenu diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index aeb8f8f..f702bff 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -126,6 +126,8 @@ void show_regs(struct pt_regs *regs) user = user_mode(regs); level = user ? KERN_DEBUG : KERN_CRIT; + show_regs_print_info(level); + print_gr(level, regs); for (i = 0; i < 8; i += 4) @@ -158,14 +160,6 @@ void show_regs(struct pt_regs *regs) } } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - static void do_show_stack(struct unwind_frame_info *info) { int i = 1; diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 16e77a8..13a8d9d 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -831,6 +831,8 @@ void show_regs(struct pt_regs * regs) { int i, trap; + show_regs_print_info(KERN_DEFAULT); + printk("NIP: "REG" LR: "REG" CTR: "REG"\n", regs->nip, regs->link, regs->ctr); printk("REGS: %p TRAP: %04lx %s (%s)\n", @@ -850,12 +852,6 @@ void show_regs(struct pt_regs * regs) #else printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr); #endif - printk("TASK = %p[%d] '%s' THREAD: %p", - current, task_pid_nr(current), current->comm, task_thread_info(current)); - -#ifdef CONFIG_SMP - printk(" CPU: %d", raw_smp_processor_id()); -#endif /* CONFIG_SMP */ for (i = 0; i < 32; i++) { if ((i % REGS_PER_LINE) == 0) @@ -1362,12 +1358,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) } while (count++ < kstack_depth_to_print); } -void dump_stack(void) -{ - show_stack(current, NULL); -} -EXPORT_SYMBOL(dump_stack); - #ifdef CONFIG_PPC64 /* Called with hard IRQs off */ void __ppc64_runlatch_on(void) diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 13f85de..3e34cd2 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -2947,7 +2947,7 @@ static void sysrq_handle_xmon(int key) static struct sysrq_key_op sysrq_xmon_op = { .handler = sysrq_handle_xmon, - .help_msg = "Xmon", + .help_msg = "xmon(x)", .action_msg = "Entering xmon", }; diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index bda6ba6..ce640af 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -91,6 +91,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_SAVE_PAGE_KEYS if HIBERNATION select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_EXTABLE_SORT diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug index fc32a2d..c56878e 100644 --- a/arch/s390/Kconfig.debug +++ b/arch/s390/Kconfig.debug @@ -17,20 +17,6 @@ config STRICT_DEVMEM If you are unsure, say Y. -config DEBUG_STRICT_USER_COPY_CHECKS - def_bool n - prompt "Strict user copy size checks" - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time warnings. - - The copy_from_user() etc checks are there to help test if there - are sufficient security checks on the length argument of - the copy operation, by having gcc prove that the argument is - within bounds. - - If unsure, or if you run an older (pre 4.4) gcc, say N. - config S390_PTDUMP bool "Export kernel pagetable layout to userspace via debugfs" depends on DEBUG_KERNEL diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index 03dce39..2982974 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -129,23 +129,6 @@ static void show_last_breaking_event(struct pt_regs *regs) #endif } -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - printk("CPU: %d %s %s %.*s\n", - task_thread_info(current)->cpu, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); - printk("Process %s (pid: %d, task: %p, ksp: %p)\n", - current->comm, current->pid, current, - (void *) current->thread.ksp); - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - static inline int mask_bits(struct pt_regs *regs, unsigned long bits) { return (regs->psw.mask & bits) / ((~bits + 1) & bits); @@ -183,14 +166,7 @@ void show_registers(struct pt_regs *regs) void show_regs(struct pt_regs *regs) { - printk("CPU: %d %s %s %.*s\n", - task_thread_info(current)->cpu, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); - printk("Process %s (pid: %d, task: %p, ksp: %p)\n", - current->comm, current->pid, current, - (void *) current->thread.ksp); + show_regs_print_info(KERN_DEFAULT); show_registers(regs); /* Show stack backtrace if pt_regs is from kernel mode */ if (!user_mode(regs)) diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile index 6ab0d0b..20b0e97 100644 --- a/arch/s390/lib/Makefile +++ b/arch/s390/lib/Makefile @@ -3,7 +3,6 @@ # lib-y += delay.o string.o uaccess_std.o uaccess_pt.o -obj-y += usercopy.o obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o obj-$(CONFIG_64BIT) += mem64.o lib-$(CONFIG_64BIT) += uaccess_mvcos.o diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c deleted file mode 100644 index 14b363f..0000000 --- a/arch/s390/lib/usercopy.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <linux/module.h> -#include <linux/bug.h> - -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c index 0e46fb1..1517a7d 100644 --- a/arch/score/kernel/traps.c +++ b/arch/score/kernel/traps.c @@ -117,6 +117,8 @@ static void show_code(unsigned int *pc) */ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); + printk("r0 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", regs->regs[0], regs->regs[1], regs->regs[2], regs->regs[3], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); @@ -149,16 +151,6 @@ static void show_registers(struct pt_regs *regs) printk(KERN_NOTICE "\n"); } -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - show_stack(current_thread_info()->task, - (long *) get_irq_regs()->regs[0]); -} -EXPORT_SYMBOL(dump_stack); - void __die(const char *str, struct pt_regs *regs, const char *file, const char *func, unsigned long line) { diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c index 7617dc4..b959f55 100644 --- a/arch/sh/kernel/dumpstack.c +++ b/arch/sh/kernel/dumpstack.c @@ -158,9 +158,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) (unsigned long)task_stack_page(tsk)); show_trace(tsk, sp, NULL); } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 73eb66f..ebd3933 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -32,11 +32,7 @@ void show_regs(struct pt_regs * regs) { printk("\n"); - printk("Pid : %d, Comm: \t\t%s\n", task_pid_nr(current), current->comm); - printk("CPU : %d \t\t%s (%s %.*s)\n\n", - smp_processor_id(), print_tainted(), init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("PR is at %s\n", regs->pr); diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index e611c85..174d124b 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c @@ -40,6 +40,7 @@ void show_regs(struct pt_regs *regs) unsigned long long ah, al, bh, bl, ch, cl; printk("\n"); + show_regs_print_info(KERN_DEFAULT); ah = (regs->pc) >> 32; al = (regs->pc) & 0xffffffff; diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index c852410..fdd819d 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -112,6 +112,8 @@ void show_regs(struct pt_regs *r) { struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14]; + show_regs_print_info(KERN_DEFAULT); + printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n", r->psr, r->pc, r->npc, r->y, print_tainted()); printk("PC: <%pS>\n", (void *) r->pc); @@ -142,11 +144,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) struct reg_window32 *rw; int count = 0; - if (tsk != NULL) - task_base = (unsigned long) task_stack_page(tsk); - else - task_base = (unsigned long) current_thread_info(); + if (!tsk) + tsk = current; + + if (tsk == current && !_ksp) + __asm__ __volatile__("mov %%fp, %0" : "=r" (_ksp)); + task_base = (unsigned long) task_stack_page(tsk); fp = (unsigned long) _ksp; do { /* Bogus frame pointer? */ @@ -162,17 +166,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) printk("\n"); } -void dump_stack(void) -{ - unsigned long *ksp; - - __asm__ __volatile__("mov %%fp, %0" - : "=r" (ksp)); - show_stack(current, ksp); -} - -EXPORT_SYMBOL(dump_stack); - /* * Note: sparc64 has a pretty intricated thread_saved_pc, check it out. */ diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index 9fbf0d1..baebab2 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -163,6 +163,8 @@ static void show_regwindow(struct pt_regs *regs) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); + printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, regs->tpc, regs->tnpc, regs->y, print_tainted()); printk("TPC: <%pS>\n", (void *) regs->tpc); @@ -292,7 +294,7 @@ static void sysrq_handle_globreg(int key) static struct sysrq_key_op sparc_globalreg_op = { .handler = sysrq_handle_globreg, - .help_msg = "global-regs(Y)", + .help_msg = "global-regs(y)", .action_msg = "Show Global CPU Regs", }; @@ -362,7 +364,7 @@ static void sysrq_handle_globpmu(int key) static struct sysrq_key_op sparc_globalpmu_op = { .handler = sysrq_handle_globpmu, - .help_msg = "global-pmu(X)", + .help_msg = "global-pmu(x)", .action_msg = "Show Global PMU Regs", }; diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index 8d38ca9..b3f833a 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -2350,13 +2350,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) } while (++count < 16); } -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - static inline struct reg_window *kernel_stack_up(struct reg_window *rw) { unsigned long fp = rw->ins[6]; diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index 8410065f2..dbe119b 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -45,4 +45,3 @@ obj-y += iomap.o obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o obj-y += ksyms.o obj-$(CONFIG_SPARC64) += PeeCeeI.o -obj-y += usercopy.o diff --git a/arch/sparc/lib/usercopy.c b/arch/sparc/lib/usercopy.c deleted file mode 100644 index 5c4284c..0000000 --- a/arch/sparc/lib/usercopy.c +++ /dev/null @@ -1,9 +0,0 @@ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/bug.h> - -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 25877ae..0f712f4e 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -19,6 +19,7 @@ config TILE select HAVE_SYSCALL_WRAPPERS if TILEGX select VIRT_TO_BUS select SYS_HYPERVISOR + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA @@ -114,13 +115,6 @@ config STRICT_DEVMEM config SMP def_bool y -# Allow checking for compile-time determined overflow errors in -# copy_from_user(). There are still unprovable places in the -# generic code as of 2.6.34, so this option is not really compatible -# with -Werror, which is more useful in general. -config DEBUG_COPY_FROM_USER - def_bool n - config HVC_TILE depends on TTY select HVC_DRIVER diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h index 9ab078a..8a082bc 100644 --- a/arch/tile/include/asm/uaccess.h +++ b/arch/tile/include/asm/uaccess.h @@ -395,7 +395,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n) return n; } -#ifdef CONFIG_DEBUG_COPY_FROM_USER +#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS +/* + * There are still unprovable places in the generic code as of 2.6.34, so this + * option is not really compatible with -Werror, which is more useful in + * general. + */ extern void copy_from_user_overflow(void) __compiletime_warning("copy_from_user() size is not provably correct"); diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 80b2a18..8ac3044 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -573,8 +573,7 @@ void show_regs(struct pt_regs *regs) int i; pr_err("\n"); - pr_err(" Pid: %d, comm: %20s, CPU: %d\n", - tsk->pid, tsk->comm, smp_processor_id()); + show_regs_print_info(KERN_ERR); #ifdef __tilegx__ for (i = 0; i < 51; i += 3) pr_err(" r%-2d: "REGFMT" r%-2d: "REGFMT" r%-2d: "REGFMT"\n", diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c index f8d398c..030abe3 100644 --- a/arch/tile/lib/uaccess.c +++ b/arch/tile/lib/uaccess.c @@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size) is_arch_mappable_range(addr, size)); } EXPORT_SYMBOL(__range_ok); - -#ifdef CONFIG_DEBUG_COPY_FROM_USER -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); -#endif diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index e562ff8..7d101a2 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -35,18 +35,6 @@ void show_trace(struct task_struct *task, unsigned long * stack) } #endif -/* - * stack dumps generator - this is used by arch-independent code. - * And this is identical to i386 currently. - */ -void dump_stack(void) -{ - unsigned long stack; - - show_trace(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - /*Stolen from arch/i386/kernel/traps.c */ static const int kstack_depth_to_print = 24; diff --git a/arch/um/sys-ppc/sysrq.c b/arch/um/sys-ppc/sysrq.c index f889449..1ff1ad7 100644 --- a/arch/um/sys-ppc/sysrq.c +++ b/arch/um/sys-ppc/sysrq.c @@ -11,6 +11,8 @@ void show_regs(struct pt_regs_subarch *regs) { printk("\n"); + show_regs_print_info(KERN_DEFAULT); + printk("show_regs(): insert regs here.\n"); #if 0 printk("\n"); diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c index 7fab86d..c944769 100644 --- a/arch/unicore32/kernel/process.c +++ b/arch/unicore32/kernel/process.c @@ -144,11 +144,7 @@ void __show_regs(struct pt_regs *regs) unsigned long flags; char buf[64]; - printk(KERN_DEFAULT "CPU: %d %s (%s %.*s)\n", - raw_smp_processor_id(), print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("LR is at %s\n", regs->UCreg_lr); printk(KERN_DEFAULT "pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n" diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c index 0870b68..c54e324 100644 --- a/arch/unicore32/kernel/traps.c +++ b/arch/unicore32/kernel/traps.c @@ -170,12 +170,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) c_backtrace(fp, mode); } -void dump_stack(void) -{ - dump_backtrace(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *tsk, unsigned long *sp) { dump_backtrace(NULL, tsk); diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 05b057d..5db2117 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -20,6 +20,7 @@ config X86_64 ### Arch settings config X86 def_bool y + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select HAVE_AOUT if X86_32 select HAVE_UNSTABLE_SCHED_CLOCK select ARCH_SUPPORTS_NUMA_BALANCING diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 16f7383..c198b7e 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -292,20 +292,6 @@ config OPTIMIZE_INLINING If unsure, say N. -config DEBUG_STRICT_USER_COPY_CHECKS - bool "Strict copy size checks" - depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time failures. - - The copy_from_user() etc checks are there to help test if there - are sufficient security checks on the length argument of - the copy operation, by having gcc prove that the argument is - within bounds. - - If unsure, or if you run an older (pre 4.4) gcc, say N. - config DEBUG_NMI_SELFTEST bool "NMI Selftest" depends on DEBUG_KERNEL && X86_LOCAL_APIC diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 03abf9b..81e94d9 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -162,7 +162,6 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, fs = get_fs(); set_fs(KERNEL_DS); has_dumped = 1; - current->flags |= PF_DUMPCORE; strncpy(dump.u_comm, current->comm, sizeof(current->comm)); dump.u_ar0 = offsetof(struct user32, regs); dump.signal = signr; diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h index 11e1152..2f03ff0 100644 --- a/arch/x86/include/asm/bug.h +++ b/arch/x86/include/asm/bug.h @@ -37,7 +37,4 @@ do { \ #include <asm-generic/bug.h> - -extern void show_regs_common(void); - #endif /* _ASM_X86_BUG_H */ diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index c8797d5..deb6421 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -176,26 +176,20 @@ void show_trace(struct task_struct *task, struct pt_regs *regs, void show_stack(struct task_struct *task, unsigned long *sp) { - show_stack_log_lvl(task, NULL, sp, 0, ""); -} - -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - unsigned long bp; + unsigned long bp = 0; unsigned long stack; - bp = stack_frame(current, NULL); - printk("Pid: %d, comm: %.20s %s %s %.*s\n", - current->pid, current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); - show_trace(NULL, NULL, &stack, bp); + /* + * Stack frames below this one aren't interesting. Don't show them + * if we're printing for %current. + */ + if (!sp && (!task || task == current)) { + sp = &stack; + bp = stack_frame(current, NULL); + } + + show_stack_log_lvl(task, NULL, sp, bp, ""); } -EXPORT_SYMBOL(dump_stack); static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED; static int die_owner = -1; diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 1038a41..f2a1770 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -86,11 +86,9 @@ void show_regs(struct pt_regs *regs) { int i; + show_regs_print_info(KERN_EMERG); __show_regs(regs, !user_mode_vm(regs)); - pr_emerg("Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n", - TASK_COMM_LEN, current->comm, task_pid_nr(current), - current_thread_info(), current, task_thread_info(current)); /* * When in-kernel, we also print out the stack and code at the * time of the fault.. diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c index b653675..addb207 100644 --- a/arch/x86/kernel/dumpstack_64.c +++ b/arch/x86/kernel/dumpstack_64.c @@ -249,14 +249,10 @@ void show_regs(struct pt_regs *regs) { int i; unsigned long sp; - const int cpu = smp_processor_id(); - struct task_struct *cur = current; sp = regs->sp; - printk("CPU %d ", cpu); + show_regs_print_info(KERN_DEFAULT); __show_regs(regs, 1); - printk(KERN_DEFAULT "Process %s (pid: %d, threadinfo %p, task %p)\n", - cur->comm, cur->pid, task_thread_info(cur), cur); /* * When in-kernel, we also print out the stack and code at the diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 14fcf55..607af0d 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -121,30 +121,6 @@ void exit_thread(void) drop_fpu(me); } -void show_regs_common(void) -{ - const char *vendor, *product, *board; - - vendor = dmi_get_system_info(DMI_SYS_VENDOR); - if (!vendor) - vendor = ""; - product = dmi_get_system_info(DMI_PRODUCT_NAME); - if (!product) - product = ""; - - /* Board Name is optional */ - board = dmi_get_system_info(DMI_BOARD_NAME); - - printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s %s%s%s\n", - current->pid, current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version, - vendor, product, - board ? "/" : "", - board ? board : ""); -} - void flush_thread(void) { struct task_struct *tsk = current; diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index b5a8905..7305f7d 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -84,8 +84,6 @@ void __show_regs(struct pt_regs *regs, int all) savesegment(gs, gs); } - show_regs_common(); - printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n", (u16)regs->cs, regs->ip, regs->flags, smp_processor_id()); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 0f49677..355ae06 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -62,7 +62,6 @@ void __show_regs(struct pt_regs *regs, int all) unsigned int fsindex, gsindex; unsigned int ds, cs, es; - show_regs_common(); printk(KERN_DEFAULT "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip); printk_address(regs->ip, 1); printk(KERN_DEFAULT "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 4689855..56f7fcf 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -996,6 +996,7 @@ void __init setup_arch(char **cmdline_p) efi_init(); dmi_scan_machine(); + dmi_set_dump_stack_arch_desc(); /* * VMware detection requires dmi to be available, so this diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c index f0312d7..3eb18ac 100644 --- a/arch/x86/lib/usercopy_32.c +++ b/arch/x86/lib/usercopy_32.c @@ -689,9 +689,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n) return n; } EXPORT_SYMBOL(_copy_from_user); - -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index 923db5c..458186d 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -383,6 +383,8 @@ void show_regs(struct pt_regs * regs) { int i, wmask; + show_regs_print_info(KERN_DEFAULT); + wmask = regs->wmask & ~1; for (i = 0; i < 16; i++) { @@ -481,14 +483,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) show_trace(task, stack); } -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - - void show_code(unsigned int *pc) { long i; |
