renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 11:44:01 +08:00
Code

asm-generic: remove ptrace.h

Browse Source 
The asm-generic changes for 5.3 consist of a cleanup series from
 Christoph Hellwig, who explains:
 
 "asm-generic/ptrace.h is a little weird in that it doesn't actually
 implement any functionality, but it provided multiple layers of macros
 that just implement trivial inline functions.  We implement those
 directly in the few architectures and be off with a much simpler
 design."
 
 Link: https://lore.kernel.org/lkml/20190624054728.30966-1-hch@lst.de/
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJdKPURAAoJEJpsee/mABjZalgP/idFZKlL9jb32p9eVacW1ngm
 CzwKk+49UBpLlimTh3ZtpiSJEHQyXP/QYlJ0/kV65YJriq5FsqlBrkPnWgsgMG9x
 HBhJEEfVtXolXK3yNEsFIt/0j0Xh7+uCyBNZNuJrIRy/9x2z2nhBgDAenWPpZNuT
 qjpArBAVEWQMsWgmgZUlCKOT7ziSx5+w1bfqiiUZDjwjqimPhLUBfoZmUWHtO49M
 4/95RVOIMoLlIcaCUfqsvfkf7v6mfFAADhTrB/FZWVNX839fnpifqQL9BmOlgrEM
 kxn5wM/dxRDwRT8+mVRyB8ax4/rIgMIFoaA7Hrv+hoUsiOVD7AkNXynZKQh1hhjl
 449j68esoA6vlfdFIhagpKKTiQcWXJDbEgAoSJcM0WIl3JAjc+3nVWShTAAEW65r
 Z+Bgy1OczoCsRXbYR/TwpThHj3197xMRQEluzaLnd5Zx5feUDUKuDcxhPpev/ceO
 qmV5FeGqxRlZhJjVK8lmcHNZP0e4pkodwrNKC/2NIlIp6EKmMNI0nCjVqINigHGC
 97Kc7N94WHdQ3tA7GB8YaUfd8w86W5ZOgRh+uuZ0brPziL1MR5lD/NvzjVSfyvVp
 7UHNP7stNbavg20vDhlWGIsWiwoDlJf0YLUA6kXHryb9i/fh8sqWjz99QFu6QIfs
 BTgeLtNP8hKhMkgew2XL
 =jkfI
 -----END PGP SIGNATURE-----

Merge tag 'asm-generic-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "The asm-generic changes for 5.3 consist of a cleanup series to remove
  ptrace.h from Christoph Hellwig, who explains:

    'asm-generic/ptrace.h is a little weird in that it doesn't actually
     implement any functionality, but it provided multiple layers of
     macros that just implement trivial inline functions. We implement
     those directly in the few architectures and be off with a much
     simpler design.'

  at https://lore.kernel.org/lkml/20190624054728.30966-1-hch@lst.de/"

* tag 'asm-generic-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  asm-generic: remove ptrace.h
  x86: don't use asm-generic/ptrace.h
  sh: don't use asm-generic/ptrace.h
  powerpc: don't use asm-generic/ptrace.h
  arm64: don't use asm-generic/ptrace.h
This commit is contained in:
Linus Torvalds 2019-07-12 15:41:33 -07:00
commit 5f26f11436
7 changed files with 91 additions and 107 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
MAINTAINERS
View File

@ -12930,7 +12930,6 @@ F: include/linux/regset.h
F: include/linux/tracehook.h F: include/linux/tracehook.h
F: include/uapi/linux/ptrace.h F: include/uapi/linux/ptrace.h
F: include/uapi/linux/ptrace.h F: include/uapi/linux/ptrace.h
F: include/asm-generic/ptrace.h
F: kernel/ptrace.c F: kernel/ptrace.c
F: arch/*/ptrace*.c F: arch/*/ptrace*.c
F: arch/*/*/ptrace*.c F: arch/*/*/ptrace*.c

31
arch/arm64/include/asm/ptrace.h
View File

@ -223,11 +223,12 @@ static inline void forget_syscall(struct pt_regs *regs)
#define fast_interrupts_enabled(regs) \ #define fast_interrupts_enabled(regs) \
(!((regs)->pstate & PSR_F_BIT)) (!((regs)->pstate & PSR_F_BIT))
#define GET_USP(regs) \ static inline unsigned long user_stack_pointer(struct pt_regs *regs)
(!compat_user_mode(regs) ? (regs)->sp : (regs)->compat_sp) {
if (compat_user_mode(regs))
#define SET_USP(ptregs, value) \ return regs->compat_sp;
(!compat_user_mode(regs) ? ((regs)->sp = value) : ((regs)->compat_sp = value)) return regs->sp;
}
extern int regs_query_register_offset(const char *name); extern int regs_query_register_offset(const char *name);
extern unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, extern unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
@ -326,13 +327,20 @@ static inline unsigned long regs_get_kernel_argument(struct pt_regs *regs,
struct task_struct; struct task_struct;
int valid_user_regs(struct user_pt_regs *regs, struct task_struct *task); int valid_user_regs(struct user_pt_regs *regs, struct task_struct *task);
#define GET_IP(regs) ((unsigned long)(regs)->pc) static inline unsigned long instruction_pointer(struct pt_regs *regs)
#define SET_IP(regs, value) ((regs)->pc = ((u64) (value))) {
return regs->pc;
}
static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->pc = val;
}
#define GET_FP(ptregs) ((unsigned long)(ptregs)->regs[29]) static inline unsigned long frame_pointer(struct pt_regs *regs)
#define SET_FP(ptregs, value) ((ptregs)->regs[29] = ((u64) (value))) {
return regs->regs[29];
#include <asm-generic/ptrace.h> }
#define procedure_link_pointer(regs) ((regs)->regs[30]) #define procedure_link_pointer(regs) ((regs)->regs[30])
@ -342,7 +350,6 @@ static inline void procedure_link_pointer_set(struct pt_regs *regs,
procedure_link_pointer(regs) = val; procedure_link_pointer(regs) = val;
} }
#undef profile_pc
extern unsigned long profile_pc(struct pt_regs *regs); extern unsigned long profile_pc(struct pt_regs *regs);
#endif /* __ASSEMBLY__ */ #endif /* __ASSEMBLY__ */

5
arch/mips/include/asm/ptrace.h
View File

@ -56,11 +56,6 @@ static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
return regs->regs[31]; return regs->regs[31];
} }
/*
* Don't use asm-generic/ptrace.h it defines FP accessors that don't make
* sense on MIPS. We rather want an error if they get invoked.
*/
static inline void instruction_pointer_set(struct pt_regs *regs, static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val) unsigned long val)
{ {

29
arch/powerpc/include/asm/ptrace.h
View File

@ -111,18 +111,33 @@ struct pt_regs
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
#define GET_IP(regs) ((regs)->nip) static inline unsigned long instruction_pointer(struct pt_regs *regs)
#define GET_USP(regs) ((regs)->gpr[1]) {
#define GET_FP(regs) (0) return regs->nip;
#define SET_FP(regs, val) }
static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->nip = val;
}
static inline unsigned long user_stack_pointer(struct pt_regs *regs)
{
return regs->gpr[1];
}
static inline unsigned long frame_pointer(struct pt_regs *regs)
{
return 0;
}
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
extern unsigned long profile_pc(struct pt_regs *regs); extern unsigned long profile_pc(struct pt_regs *regs);
#define profile_pc profile_pc #else
#define profile_pc(regs) instruction_pointer(regs)
#endif #endif
#include <asm-generic/ptrace.h>
#define kernel_stack_pointer(regs) ((regs)->gpr[1]) #define kernel_stack_pointer(regs) ((regs)->gpr[1])
static inline int is_syscall_success(struct pt_regs *regs) static inline int is_syscall_success(struct pt_regs *regs)
{ {

29
arch/sh/include/asm/ptrace.h
View File

@ -16,8 +16,31 @@
#define user_mode(regs) (((regs)->sr & 0x40000000)==0) #define user_mode(regs) (((regs)->sr & 0x40000000)==0)
#define kernel_stack_pointer(_regs) ((unsigned long)(_regs)->regs[15]) #define kernel_stack_pointer(_regs) ((unsigned long)(_regs)->regs[15])
#define GET_FP(regs) ((regs)->regs[14]) static inline unsigned long instruction_pointer(struct pt_regs *regs)
#define GET_USP(regs) ((regs)->regs[15]) {
return regs->pc;
}
static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->pc = val;
}
static inline unsigned long frame_pointer(struct pt_regs *regs)
{
return regs->regs[14];
}
static inline unsigned long user_stack_pointer(struct pt_regs *regs)
{
return regs->regs[15];
}
static inline void user_stack_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->regs[15] = val;
}
#define arch_has_single_step() (1) #define arch_has_single_step() (1)
@ -112,7 +135,5 @@ static inline unsigned long profile_pc(struct pt_regs *regs)
return pc; return pc;
} }
#define profile_pc profile_pc
#include <asm-generic/ptrace.h>
#endif /* __ASM_SH_PTRACE_H */ #endif /* __ASM_SH_PTRACE_H */

30
arch/x86/include/asm/ptrace.h
View File

@ -98,7 +98,6 @@ struct cpuinfo_x86;
struct task_struct; struct task_struct;
extern unsigned long profile_pc(struct pt_regs *regs); extern unsigned long profile_pc(struct pt_regs *regs);
#define profile_pc profile_pc
extern unsigned long extern unsigned long
convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs); convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
@ -170,11 +169,32 @@ static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
return regs->sp; return regs->sp;
} }
#define GET_IP(regs) ((regs)->ip) static inline unsigned long instruction_pointer(struct pt_regs *regs)
#define GET_FP(regs) ((regs)->bp) {
#define GET_USP(regs) ((regs)->sp) return regs->ip;
}
#include <asm-generic/ptrace.h> static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->ip = val;
}
static inline unsigned long frame_pointer(struct pt_regs *regs)
{
return regs->bp;
}
static inline unsigned long user_stack_pointer(struct pt_regs *regs)
{
return regs->sp;
}
static inline void user_stack_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->sp = val;
}
/* Query offset/name of register from its name/offset */ /* Query offset/name of register from its name/offset */
extern int regs_query_register_offset(const char *name); extern int regs_query_register_offset(const char *name);

73
include/asm-generic/ptrace.h
View File

@ -1,73 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Common low level (register) ptrace helpers
*
* Copyright 2004-2011 Analog Devices Inc.
*/
#ifndef __ASM_GENERIC_PTRACE_H__
#define __ASM_GENERIC_PTRACE_H__
#ifndef __ASSEMBLY__
/* Helpers for working with the instruction pointer */
#ifndef GET_IP
#define GET_IP(regs) ((regs)->pc)
#endif
#ifndef SET_IP
#define SET_IP(regs, val) (GET_IP(regs) = (val))
#endif
static inline unsigned long instruction_pointer(struct pt_regs *regs)
{
return GET_IP(regs);
}
static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
SET_IP(regs, val);
}
#ifndef profile_pc
#define profile_pc(regs) instruction_pointer(regs)
#endif
/* Helpers for working with the user stack pointer */
#ifndef GET_USP
#define GET_USP(regs) ((regs)->usp)
#endif
#ifndef SET_USP
#define SET_USP(regs, val) (GET_USP(regs) = (val))
#endif
static inline unsigned long user_stack_pointer(struct pt_regs *regs)
{
return GET_USP(regs);
}
static inline void user_stack_pointer_set(struct pt_regs *regs,
unsigned long val)
{
SET_USP(regs, val);
}
/* Helpers for working with the frame pointer */
#ifndef GET_FP
#define GET_FP(regs) ((regs)->fp)
#endif
#ifndef SET_FP
#define SET_FP(regs, val) (GET_FP(regs) = (val))
#endif
static inline unsigned long frame_pointer(struct pt_regs *regs)
{
return GET_FP(regs);
}
static inline void frame_pointer_set(struct pt_regs *regs,
unsigned long val)
{
SET_FP(regs, val);
}
#endif /* __ASSEMBLY__ */
#endif