diff options
Diffstat (limited to 'arch/ia64/include/asm/ptrace.h')
| -rw-r--r-- | arch/ia64/include/asm/ptrace.h | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h deleted file mode 100644 index 7ff574d56429..000000000000 --- a/arch/ia64/include/asm/ptrace.h +++ /dev/null @@ -1,152 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 1998-2004 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * Stephane Eranian <eranian@hpl.hp.com> - * Copyright (C) 2003 Intel Co - * Suresh Siddha <suresh.b.siddha@intel.com> - * Fenghua Yu <fenghua.yu@intel.com> - * Arun Sharma <arun.sharma@intel.com> - * - * 12/07/98 S. Eranian added pt_regs & switch_stack - * 12/21/98 D. Mosberger updated to match latest code - * 6/17/99 D. Mosberger added second unat member to "struct switch_stack" - * - */ -#ifndef _ASM_IA64_PTRACE_H -#define _ASM_IA64_PTRACE_H - -#ifndef ASM_OFFSETS_C -#include <asm/asm-offsets.h> -#endif -#include <uapi/asm/ptrace.h> - -/* - * Base-2 logarithm of number of pages to allocate per task structure - * (including register backing store and memory stack): - */ -#if defined(CONFIG_IA64_PAGE_SIZE_4KB) -# define KERNEL_STACK_SIZE_ORDER 3 -#elif defined(CONFIG_IA64_PAGE_SIZE_8KB) -# define KERNEL_STACK_SIZE_ORDER 2 -#elif defined(CONFIG_IA64_PAGE_SIZE_16KB) -# define KERNEL_STACK_SIZE_ORDER 1 -#else -# define KERNEL_STACK_SIZE_ORDER 0 -#endif - -#define IA64_RBS_OFFSET ((IA64_TASK_SIZE + IA64_THREAD_INFO_SIZE + 31) & ~31) -#define IA64_STK_OFFSET ((1 << KERNEL_STACK_SIZE_ORDER)*PAGE_SIZE) - -#define KERNEL_STACK_SIZE IA64_STK_OFFSET - -#ifndef __ASSEMBLY__ - -#include <asm/current.h> -#include <asm/page.h> - -/* - * We use the ia64_psr(regs)->ri to determine which of the three - * instructions in bundle (16 bytes) took the sample. Generate - * the canonical representation by adding to instruction pointer. - */ -# define instruction_pointer(regs) ((regs)->cr_iip + ia64_psr(regs)->ri) - -static inline unsigned long user_stack_pointer(struct pt_regs *regs) -{ - /* FIXME: should this be bspstore + nr_dirty regs? */ - return regs->ar_bspstore; -} - -static inline int is_syscall_success(struct pt_regs *regs) -{ - return regs->r10 != -1; -} - -static inline long regs_return_value(struct pt_regs *regs) -{ - if (is_syscall_success(regs)) - return regs->r8; - else - return -regs->r8; -} - -/* Conserve space in histogram by encoding slot bits in address - * bits 2 and 3 rather than bits 0 and 1. - */ -#define profile_pc(regs) \ -({ \ - unsigned long __ip = instruction_pointer(regs); \ - (__ip & ~3UL) + ((__ip & 3UL) << 2); \ -}) -/* - * Why not default? Because user_stack_pointer() on ia64 gives register - * stack backing store instead... - */ -#define current_user_stack_pointer() (current_pt_regs()->r12) - - /* given a pointer to a task_struct, return the user's pt_regs */ -# define task_pt_regs(t) (((struct pt_regs *) ((char *) (t) + IA64_STK_OFFSET)) - 1) -# define ia64_psr(regs) ((struct ia64_psr *) &(regs)->cr_ipsr) -# define user_mode(regs) (((struct ia64_psr *) &(regs)->cr_ipsr)->cpl != 0) -# define user_stack(task,regs) ((long) regs - (long) task == IA64_STK_OFFSET - sizeof(*regs)) -# define fsys_mode(task,regs) \ - ({ \ - struct task_struct *_task = (task); \ - struct pt_regs *_regs = (regs); \ - !user_mode(_regs) && user_stack(_task, _regs); \ - }) - - /* - * System call handlers that, upon successful completion, need to return a negative value - * should call force_successful_syscall_return() right before returning. On architectures - * where the syscall convention provides for a separate error flag (e.g., alpha, ia64, - * ppc{,64}, sparc{,64}, possibly others), this macro can be used to ensure that the error - * flag will not get set. On architectures which do not support a separate error flag, - * the macro is a no-op and the spurious error condition needs to be filtered out by some - * other means (e.g., in user-level, by passing an extra argument to the syscall handler, - * or something along those lines). - * - * On ia64, we can clear the user's pt_regs->r8 to force a successful syscall. - */ -# define force_successful_syscall_return() (task_pt_regs(current)->r8 = 0) - - struct task_struct; /* forward decl */ - struct unw_frame_info; /* forward decl */ - - extern void ia64_do_show_stack (struct unw_frame_info *, void *); - extern unsigned long ia64_get_user_rbs_end (struct task_struct *, struct pt_regs *, - unsigned long *); - extern long ia64_peek (struct task_struct *, struct switch_stack *, unsigned long, - unsigned long, long *); - extern long ia64_poke (struct task_struct *, struct switch_stack *, unsigned long, - unsigned long, long); - extern void ia64_flush_fph (struct task_struct *); - extern void ia64_sync_fph (struct task_struct *); - extern void ia64_sync_krbs(void); - extern long ia64_sync_user_rbs (struct task_struct *, struct switch_stack *, - unsigned long, unsigned long); - - /* get nat bits for scratch registers such that bit N==1 iff scratch register rN is a NaT */ - extern unsigned long ia64_get_scratch_nat_bits (struct pt_regs *pt, unsigned long scratch_unat); - /* put nat bits for scratch registers such that scratch register rN is a NaT iff bit N==1 */ - extern unsigned long ia64_put_scratch_nat_bits (struct pt_regs *pt, unsigned long nat); - - extern void ia64_increment_ip (struct pt_regs *pt); - extern void ia64_decrement_ip (struct pt_regs *pt); - - extern void ia64_ptrace_stop(void); - #define arch_ptrace_stop(code, info) \ - ia64_ptrace_stop() - #define arch_ptrace_stop_needed(code, info) \ - (!test_thread_flag(TIF_RESTORE_RSE)) - - extern void ptrace_attach_sync_user_rbs (struct task_struct *); - #define arch_ptrace_attach(child) \ - ptrace_attach_sync_user_rbs(child) - - #define arch_has_single_step() (1) - #define arch_has_block_step() (1) - -#endif /* !__ASSEMBLY__ */ -#endif /* _ASM_IA64_PTRACE_H */ |