diff options
Diffstat (limited to 'arch/v850/kernel/asm-offsets.c')
-rw-r--r-- | arch/v850/kernel/asm-offsets.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/v850/kernel/asm-offsets.c b/arch/v850/kernel/asm-offsets.c new file mode 100644 index 0000000..24f2913 --- /dev/null +++ b/arch/v850/kernel/asm-offsets.c @@ -0,0 +1,61 @@ +/* + * This program is used to generate definitions needed by + * assembly language modules. + * + * We use the technique used in the OSF Mach kernel code: + * generate asm statements containing #defines, + * compile this file to assembler, and then extract the + * #defines from the assembly-language output. + */ + +#include <linux/stddef.h> +#include <linux/sched.h> +#include <linux/kernel_stat.h> +#include <linux/ptrace.h> +#include <linux/hardirq.h> +#include <asm/irq.h> +#include <asm/errno.h> + +#define DEFINE(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + +#define BLANK() asm volatile("\n->" : : ) + +int main (void) +{ + /* offsets into the task struct */ + DEFINE (TASK_STATE, offsetof (struct task_struct, state)); + DEFINE (TASK_FLAGS, offsetof (struct task_struct, flags)); + DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace)); + DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked)); + DEFINE (TASK_THREAD, offsetof (struct task_struct, thread)); + DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, thread_info)); + DEFINE (TASK_MM, offsetof (struct task_struct, mm)); + DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm)); + DEFINE (TASK_PID, offsetof (struct task_struct, pid)); + + /* offsets into the kernel_stat struct */ + DEFINE (STAT_IRQ, offsetof (struct kernel_stat, irqs)); + + + /* signal defines */ + DEFINE (SIGSEGV, SIGSEGV); + DEFINE (SEGV_MAPERR, SEGV_MAPERR); + DEFINE (SIGTRAP, SIGTRAP); + DEFINE (SIGCHLD, SIGCHLD); + DEFINE (SIGILL, SIGILL); + DEFINE (TRAP_TRACE, TRAP_TRACE); + + /* ptrace flag bits */ + DEFINE (PT_PTRACED, PT_PTRACED); + DEFINE (PT_DTRACE, PT_DTRACE); + + /* error values */ + DEFINE (ENOSYS, ENOSYS); + + /* clone flag bits */ + DEFINE (CLONE_VFORK, CLONE_VFORK); + DEFINE (CLONE_VM, CLONE_VM); + + return 0; +} |