aa33c8cbba
Move the program interruption code and the translation exception identifier to the pt_regs structure as 'int_code' and 'int_parm_long' and make the first level interrupt handler in entry[64].S store the two values. That makes it possible to drop 'prot_addr' and 'trap_no' from the thread_struct and to reduce the number of arguments to a lot of functions. Finally un-inline do_trap. Overall this saves 5812 bytes in the .text section of the 64 bit kernel. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
#ifndef _ENTRY_H
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#define _ENTRY_H
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#include <linux/types.h>
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#include <linux/signal.h>
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#include <asm/ptrace.h>
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extern void (*pgm_check_table[128])(struct pt_regs *);
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extern void *restart_stack;
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asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
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asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
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void do_protection_exception(struct pt_regs *regs);
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void do_dat_exception(struct pt_regs *regs);
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void do_asce_exception(struct pt_regs *regs);
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void do_per_trap(struct pt_regs *regs);
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void syscall_trace(struct pt_regs *regs, int entryexit);
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void kernel_stack_overflow(struct pt_regs * regs);
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void do_signal(struct pt_regs *regs);
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int handle_signal32(unsigned long sig, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *oldset, struct pt_regs *regs);
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void do_notify_resume(struct pt_regs *regs);
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void do_extint(struct pt_regs *regs, unsigned int, unsigned int, unsigned long);
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void do_restart(void);
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int __cpuinit start_secondary(void *cpuvoid);
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void __init startup_init(void);
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void die(struct pt_regs *regs, const char *str);
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void __init time_init(void);
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struct s390_mmap_arg_struct;
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struct fadvise64_64_args;
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struct old_sigaction;
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long sys_mmap2(struct s390_mmap_arg_struct __user *arg);
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long sys_s390_ipc(uint call, int first, unsigned long second,
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unsigned long third, void __user *ptr);
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long sys_s390_personality(unsigned int personality);
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long sys_s390_fadvise64(int fd, u32 offset_high, u32 offset_low,
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size_t len, int advice);
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long sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
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long sys_s390_fallocate(int fd, int mode, loff_t offset, u32 len_high,
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u32 len_low);
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long sys_fork(void);
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long sys_clone(unsigned long newsp, unsigned long clone_flags,
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int __user *parent_tidptr, int __user *child_tidptr);
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long sys_vfork(void);
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void execve_tail(void);
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long sys_execve(const char __user *name, const char __user *const __user *argv,
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const char __user *const __user *envp);
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long sys_sigsuspend(int history0, int history1, old_sigset_t mask);
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long sys_sigaction(int sig, const struct old_sigaction __user *act,
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struct old_sigaction __user *oact);
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long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss);
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long sys_sigreturn(void);
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long sys_rt_sigreturn(void);
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long sys32_sigreturn(void);
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long sys32_rt_sigreturn(void);
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#endif /* _ENTRY_H */
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