diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/Kconfig | 4 | ||||
| -rw-r--r-- | arch/sh/kernel/traps.c | 54 | ||||
| -rw-r--r-- | arch/sh/kernel/vmlinux.lds.S | 47 |
3 files changed, 34 insertions, 71 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 2715834f72b..51d9d0ab39c 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -22,6 +22,10 @@ config RWSEM_GENERIC_SPINLOCK config RWSEM_XCHGADD_ALGORITHM bool +config GENERIC_BUG + def_bool y + depends on BUG + config GENERIC_FIND_NEXT_BIT bool default y diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index e9f168f60f9..77107838271 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -18,6 +18,7 @@ #include <linux/module.h> #include <linux/kallsyms.h> #include <linux/io.h> +#include <linux/bug.h> #include <linux/debug_locks.h> #include <linux/limits.h> #include <asm/system.h> @@ -130,40 +131,6 @@ static int die_if_no_fixup(const char * str, struct pt_regs * regs, long err) return -EFAULT; } -#ifdef CONFIG_BUG -#ifdef CONFIG_DEBUG_BUGVERBOSE -static inline void do_bug_verbose(struct pt_regs *regs) -{ - struct bug_frame f; - long len; - - if (__copy_from_user(&f, (const void __user *)regs->pc, - sizeof(struct bug_frame))) - return; - - len = __strnlen_user(f.file, PATH_MAX) - 1; - if (unlikely(len < 0 || len >= PATH_MAX)) - f.file = "<bad filename>"; - len = __strnlen_user(f.func, PATH_MAX) - 1; - if (unlikely(len < 0 || len >= PATH_MAX)) - f.func = "<bad function>"; - - printk(KERN_ALERT "kernel BUG in %s() at %s:%d!\n", - f.func, f.file, f.line); -} -#else -static inline void do_bug_verbose(struct pt_regs *regs) -{ -} -#endif /* CONFIG_DEBUG_BUGVERBOSE */ - -void handle_BUG(struct pt_regs *regs) -{ - do_bug_verbose(regs); - die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff); -} -#endif /* CONFIG_BUG */ - /* * handle an instruction that does an unaligned memory access by emulating the * desired behaviour @@ -888,6 +855,25 @@ void __init trap_init(void) per_cpu_trap_init(); } +#ifdef CONFIG_BUG +void handle_BUG(struct pt_regs *regs) +{ + enum bug_trap_type tt; + tt = report_bug(regs->pc); + if (tt == BUG_TRAP_TYPE_WARN) { + regs->pc += 2; + return; + } + + die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff); +} + +int is_valid_bugaddr(unsigned long addr) +{ + return addr >= PAGE_OFFSET; +} +#endif + void show_trace(struct task_struct *tsk, unsigned long *sp, struct pt_regs *regs) { diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 2f606d0ce1f..d83143cc5ca 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -34,9 +34,11 @@ SECTIONS __ex_table : { *(__ex_table) } __stop___ex_table = .; + _etext = .; /* End of text section */ + RODATA - _etext = .; /* End of text section */ + BUG_TABLE .data : { /* Data */ *(.data) @@ -53,6 +55,10 @@ SECTIONS . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.page_aligned) } + __nosave_begin = .; + .data_nosave : { *(.data.nosave) } + . = ALIGN(PAGE_SIZE); + __nosave_end = .; . = ALIGN(PAGE_SIZE); __per_cpu_start = .; @@ -110,43 +116,10 @@ SECTIONS * it's a module. */ /DISCARD/ : { - *(.exit.text) - *(.exit.data) *(.exitcall.exit) } - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - /* DWARF debug sections. - Symbols in the DWARF debugging section are relative to the beginning - of the section so we begin .debug at 0. */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .debug_info 0 : { *(.debug_info) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ + STABS_DEBUG + + DWARF_DEBUG } |