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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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6e6d74cfac
This patch fixes some missing ptrace bits on x86_64. PTRACE_ARCH_PRCTL is hooked up and implemented. This required generalizing arch_prctl_skas slightly to take a task_struct to modify. Previously, it always operated on current. Reading and writing the debug registers is also enabled by un-ifdefing the code that implements that. It turns out that x86_64 is identical to i386, so the same code can be used. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/*
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* Copyright 2003 PathScale, Inc.
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*
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* Licensed under the GPL
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*/
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#ifndef __UM_PTRACE_X86_64_H
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#define __UM_PTRACE_X86_64_H
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#include "linux/compiler.h"
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#include "asm/errno.h"
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#include "asm/host_ldt.h"
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#define __FRAME_OFFSETS /* Needed to get the R* macros */
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#include "asm/ptrace-generic.h"
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#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64
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/* Also defined in sysdep/ptrace.h, so may already be defined. */
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#ifndef FS_BASE
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#define FS_BASE (21 * sizeof(unsigned long))
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#define GS_BASE (22 * sizeof(unsigned long))
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#define DS (23 * sizeof(unsigned long))
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#define ES (24 * sizeof(unsigned long))
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#define FS (25 * sizeof(unsigned long))
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#define GS (26 * sizeof(unsigned long))
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#endif
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#define PT_REGS_RBX(r) UPT_RBX(&(r)->regs)
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#define PT_REGS_RCX(r) UPT_RCX(&(r)->regs)
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#define PT_REGS_RDX(r) UPT_RDX(&(r)->regs)
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#define PT_REGS_RSI(r) UPT_RSI(&(r)->regs)
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#define PT_REGS_RDI(r) UPT_RDI(&(r)->regs)
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#define PT_REGS_RBP(r) UPT_RBP(&(r)->regs)
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#define PT_REGS_RAX(r) UPT_RAX(&(r)->regs)
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#define PT_REGS_R8(r) UPT_R8(&(r)->regs)
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#define PT_REGS_R9(r) UPT_R9(&(r)->regs)
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#define PT_REGS_R10(r) UPT_R10(&(r)->regs)
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#define PT_REGS_R11(r) UPT_R11(&(r)->regs)
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#define PT_REGS_R12(r) UPT_R12(&(r)->regs)
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#define PT_REGS_R13(r) UPT_R13(&(r)->regs)
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#define PT_REGS_R14(r) UPT_R14(&(r)->regs)
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#define PT_REGS_R15(r) UPT_R15(&(r)->regs)
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#define PT_REGS_FS(r) UPT_FS(&(r)->regs)
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#define PT_REGS_GS(r) UPT_GS(&(r)->regs)
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#define PT_REGS_DS(r) UPT_DS(&(r)->regs)
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#define PT_REGS_ES(r) UPT_ES(&(r)->regs)
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#define PT_REGS_SS(r) UPT_SS(&(r)->regs)
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#define PT_REGS_CS(r) UPT_CS(&(r)->regs)
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#define PT_REGS_ORIG_RAX(r) UPT_ORIG_RAX(&(r)->regs)
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#define PT_REGS_RIP(r) UPT_IP(&(r)->regs)
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#define PT_REGS_RSP(r) UPT_SP(&(r)->regs)
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#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
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/* XXX */
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#define user_mode(r) UPT_IS_USER(&(r)->regs)
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#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_RAX(r)
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#define PT_REGS_SYSCALL_RET(r) PT_REGS_RAX(r)
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#define PT_FIX_EXEC_STACK(sp) do ; while(0)
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#define profile_pc(regs) PT_REGS_IP(regs)
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static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
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struct user_desc __user *user_desc)
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{
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return -ENOSYS;
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}
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static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
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struct user_desc __user *user_desc)
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{
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return -ENOSYS;
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}
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static inline void arch_switch_to_tt(struct task_struct *from,
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struct task_struct *to)
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{
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}
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extern void arch_switch_to_skas(struct task_struct *from,
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struct task_struct *to);
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extern long arch_prctl_skas(struct task_struct *task, int code,
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unsigned long __user *addr);
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#endif
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