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-rw-r--r--arch/x86/include/asm/Kbuild2
-rw-r--r--arch/x86/include/asm/compat.h49
-rw-r--r--arch/x86/include/asm/elf.h31
-rw-r--r--arch/x86/include/asm/ia32.h18
-rw-r--r--arch/x86/include/asm/mtrr.h28
-rw-r--r--arch/x86/include/asm/posix_types.h4
-rw-r--r--arch/x86/include/asm/posix_types_32.h75
-rw-r--r--arch/x86/include/asm/posix_types_64.h106
-rw-r--r--arch/x86/include/asm/posix_types_x32.h19
-rw-r--r--arch/x86/include/asm/processor.h10
-rw-r--r--arch/x86/include/asm/ptrace.h1
-rw-r--r--arch/x86/include/asm/sigcontext.h57
-rw-r--r--arch/x86/include/asm/sigframe.h13
-rw-r--r--arch/x86/include/asm/sighandling.h24
-rw-r--r--arch/x86/include/asm/sys_ia32.h7
-rw-r--r--arch/x86/include/asm/syscall.h5
-rw-r--r--arch/x86/include/asm/thread_info.h6
-rw-r--r--arch/x86/include/asm/unistd.h15
18 files changed, 244 insertions, 226 deletions
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index b57e6a43a37a..f9c0d3ba9e84 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -14,6 +14,7 @@ header-y += msr.h
14header-y += mtrr.h 14header-y += mtrr.h
15header-y += posix_types_32.h 15header-y += posix_types_32.h
16header-y += posix_types_64.h 16header-y += posix_types_64.h
17header-y += posix_types_x32.h
17header-y += prctl.h 18header-y += prctl.h
18header-y += processor-flags.h 19header-y += processor-flags.h
19header-y += ptrace-abi.h 20header-y += ptrace-abi.h
@@ -24,3 +25,4 @@ header-y += vsyscall.h
24 25
25genhdr-y += unistd_32.h 26genhdr-y += unistd_32.h
26genhdr-y += unistd_64.h 27genhdr-y += unistd_64.h
28genhdr-y += unistd_x32.h
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 30d737ef2a42..355edc091604 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -6,7 +6,9 @@
6 */ 6 */
7#include <linux/types.h> 7#include <linux/types.h>
8#include <linux/sched.h> 8#include <linux/sched.h>
9#include <asm/processor.h>
9#include <asm/user32.h> 10#include <asm/user32.h>
11#include <asm/unistd.h>
10 12
11#define COMPAT_USER_HZ 100 13#define COMPAT_USER_HZ 100
12#define COMPAT_UTS_MACHINE "i686\0\0" 14#define COMPAT_UTS_MACHINE "i686\0\0"
@@ -186,7 +188,20 @@ struct compat_shmid64_ds {
186/* 188/*
187 * The type of struct elf_prstatus.pr_reg in compatible core dumps. 189 * The type of struct elf_prstatus.pr_reg in compatible core dumps.
188 */ 190 */
191#ifdef CONFIG_X86_X32_ABI
192typedef struct user_regs_struct compat_elf_gregset_t;
193
194#define PR_REG_SIZE(S) (test_thread_flag(TIF_IA32) ? 68 : 216)
195#define PRSTATUS_SIZE(S) (test_thread_flag(TIF_IA32) ? 144 : 296)
196#define SET_PR_FPVALID(S,V) \
197 do { *(int *) (((void *) &((S)->pr_reg)) + PR_REG_SIZE(0)) = (V); } \
198 while (0)
199
200#define COMPAT_USE_64BIT_TIME \
201 (!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT))
202#else
189typedef struct user_regs_struct32 compat_elf_gregset_t; 203typedef struct user_regs_struct32 compat_elf_gregset_t;
204#endif
190 205
191/* 206/*
192 * A pointer passed in from user mode. This should not 207 * A pointer passed in from user mode. This should not
@@ -208,13 +223,39 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
208 223
209static inline void __user *arch_compat_alloc_user_space(long len) 224static inline void __user *arch_compat_alloc_user_space(long len)
210{ 225{
211 struct pt_regs *regs = task_pt_regs(current); 226 compat_uptr_t sp;
212 return (void __user *)regs->sp - len; 227
228 if (test_thread_flag(TIF_IA32)) {
229 sp = task_pt_regs(current)->sp;
230 } else {
231 /* -128 for the x32 ABI redzone */
232 sp = percpu_read(old_rsp) - 128;
233 }
234
235 return (void __user *)round_down(sp - len, 16);
236}
237
238static inline bool is_ia32_task(void)
239{
240#ifdef CONFIG_IA32_EMULATION
241 if (current_thread_info()->status & TS_COMPAT)
242 return true;
243#endif
244 return false;
245}
246
247static inline bool is_x32_task(void)
248{
249#ifdef CONFIG_X86_X32_ABI
250 if (task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT)
251 return true;
252#endif
253 return false;
213} 254}
214 255
215static inline int is_compat_task(void) 256static inline bool is_compat_task(void)
216{ 257{
217 return current_thread_info()->status & TS_COMPAT; 258 return is_ia32_task() || is_x32_task();
218} 259}
219 260
220#endif /* _ASM_X86_COMPAT_H */ 261#endif /* _ASM_X86_COMPAT_H */
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index f27f79abe021..5939f44fe0c0 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -155,7 +155,12 @@ do { \
155#define elf_check_arch(x) \ 155#define elf_check_arch(x) \
156 ((x)->e_machine == EM_X86_64) 156 ((x)->e_machine == EM_X86_64)
157 157
158#define compat_elf_check_arch(x) elf_check_arch_ia32(x) 158#define compat_elf_check_arch(x) \
159 (elf_check_arch_ia32(x) || (x)->e_machine == EM_X86_64)
160
161#if __USER32_DS != __USER_DS
162# error "The following code assumes __USER32_DS == __USER_DS"
163#endif
159 164
160static inline void elf_common_init(struct thread_struct *t, 165static inline void elf_common_init(struct thread_struct *t,
161 struct pt_regs *regs, const u16 ds) 166 struct pt_regs *regs, const u16 ds)
@@ -178,8 +183,9 @@ static inline void elf_common_init(struct thread_struct *t,
178void start_thread_ia32(struct pt_regs *regs, u32 new_ip, u32 new_sp); 183void start_thread_ia32(struct pt_regs *regs, u32 new_ip, u32 new_sp);
179#define compat_start_thread start_thread_ia32 184#define compat_start_thread start_thread_ia32
180 185
181void set_personality_ia32(void); 186void set_personality_ia32(bool);
182#define COMPAT_SET_PERSONALITY(ex) set_personality_ia32() 187#define COMPAT_SET_PERSONALITY(ex) \
188 set_personality_ia32((ex).e_machine == EM_X86_64)
183 189
184#define COMPAT_ELF_PLATFORM ("i686") 190#define COMPAT_ELF_PLATFORM ("i686")
185 191
@@ -286,7 +292,7 @@ do { \
286#define VDSO_HIGH_BASE 0xffffe000U /* CONFIG_COMPAT_VDSO address */ 292#define VDSO_HIGH_BASE 0xffffe000U /* CONFIG_COMPAT_VDSO address */
287 293
288/* 1GB for 64bit, 8MB for 32bit */ 294/* 1GB for 64bit, 8MB for 32bit */
289#define STACK_RND_MASK (test_thread_flag(TIF_IA32) ? 0x7ff : 0x3fffff) 295#define STACK_RND_MASK (test_thread_flag(TIF_ADDR32) ? 0x7ff : 0x3fffff)
290 296
291#define ARCH_DLINFO \ 297#define ARCH_DLINFO \
292do { \ 298do { \
@@ -295,9 +301,20 @@ do { \
295 (unsigned long)current->mm->context.vdso); \ 301 (unsigned long)current->mm->context.vdso); \
296} while (0) 302} while (0)
297 303
304#define ARCH_DLINFO_X32 \
305do { \
306 if (vdso_enabled) \
307 NEW_AUX_ENT(AT_SYSINFO_EHDR, \
308 (unsigned long)current->mm->context.vdso); \
309} while (0)
310
298#define AT_SYSINFO 32 311#define AT_SYSINFO 32
299 312
300#define COMPAT_ARCH_DLINFO ARCH_DLINFO_IA32(sysctl_vsyscall32) 313#define COMPAT_ARCH_DLINFO \
314if (test_thread_flag(TIF_X32)) \
315 ARCH_DLINFO_X32; \
316else \
317 ARCH_DLINFO_IA32(sysctl_vsyscall32)
301 318
302#define COMPAT_ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) 319#define COMPAT_ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
303 320
@@ -313,6 +330,8 @@ struct linux_binprm;
313#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 330#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
314extern int arch_setup_additional_pages(struct linux_binprm *bprm, 331extern int arch_setup_additional_pages(struct linux_binprm *bprm,
315 int uses_interp); 332 int uses_interp);
333extern int x32_setup_additional_pages(struct linux_binprm *bprm,
334 int uses_interp);
316 335
317extern int syscall32_setup_pages(struct linux_binprm *, int exstack); 336extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
318#define compat_arch_setup_additional_pages syscall32_setup_pages 337#define compat_arch_setup_additional_pages syscall32_setup_pages
@@ -329,7 +348,7 @@ static inline int mmap_is_ia32(void)
329 return 1; 348 return 1;
330#endif 349#endif
331#ifdef CONFIG_IA32_EMULATION 350#ifdef CONFIG_IA32_EMULATION
332 if (test_thread_flag(TIF_IA32)) 351 if (test_thread_flag(TIF_ADDR32))
333 return 1; 352 return 1;
334#endif 353#endif
335 return 0; 354 return 0;
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
index 1f7e62517284..ee52760549f0 100644
--- a/arch/x86/include/asm/ia32.h
+++ b/arch/x86/include/asm/ia32.h
@@ -43,6 +43,15 @@ struct ucontext_ia32 {
43 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 43 compat_sigset_t uc_sigmask; /* mask last for extensibility */
44}; 44};
45 45
46struct ucontext_x32 {
47 unsigned int uc_flags;
48 unsigned int uc_link;
49 stack_ia32_t uc_stack;
50 unsigned int uc__pad0; /* needed for alignment */
51 struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */
52 compat_sigset_t uc_sigmask; /* mask last for extensibility */
53};
54
46/* This matches struct stat64 in glibc2.2, hence the absolutely 55/* This matches struct stat64 in glibc2.2, hence the absolutely
47 * insane amounts of padding around dev_t's. 56 * insane amounts of padding around dev_t's.
48 */ 57 */
@@ -116,6 +125,15 @@ typedef struct compat_siginfo {
116 compat_clock_t _stime; 125 compat_clock_t _stime;
117 } _sigchld; 126 } _sigchld;
118 127
128 /* SIGCHLD (x32 version) */
129 struct {
130 unsigned int _pid; /* which child */
131 unsigned int _uid; /* sender's uid */
132 int _status; /* exit code */
133 compat_s64 _utime;
134 compat_s64 _stime;
135 } _sigchld_x32;
136
119 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 137 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
120 struct { 138 struct {
121 unsigned int _addr; /* faulting insn/memory ref. */ 139 unsigned int _addr; /* faulting insn/memory ref. */
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h
index 4365ffdb461f..7e3f17f92c66 100644
--- a/arch/x86/include/asm/mtrr.h
+++ b/arch/x86/include/asm/mtrr.h
@@ -29,18 +29,18 @@
29 29
30#define MTRR_IOCTL_BASE 'M' 30#define MTRR_IOCTL_BASE 'M'
31 31
32struct mtrr_sentry {
33 unsigned long base; /* Base address */
34 unsigned int size; /* Size of region */
35 unsigned int type; /* Type of region */
36};
37
38/* Warning: this structure has a different order from i386 32/* Warning: this structure has a different order from i386
39 on x86-64. The 32bit emulation code takes care of that. 33 on x86-64. The 32bit emulation code takes care of that.
40 But you need to use this for 64bit, otherwise your X server 34 But you need to use this for 64bit, otherwise your X server
41 will break. */ 35 will break. */
42 36
43#ifdef __i386__ 37#ifdef __i386__
38struct mtrr_sentry {
39 unsigned long base; /* Base address */
40 unsigned int size; /* Size of region */
41 unsigned int type; /* Type of region */
42};
43
44struct mtrr_gentry { 44struct mtrr_gentry {
45 unsigned int regnum; /* Register number */ 45 unsigned int regnum; /* Register number */
46 unsigned long base; /* Base address */ 46 unsigned long base; /* Base address */
@@ -50,12 +50,20 @@ struct mtrr_gentry {
50 50
51#else /* __i386__ */ 51#else /* __i386__ */
52 52
53struct mtrr_sentry {
54 __u64 base; /* Base address */
55 __u32 size; /* Size of region */
56 __u32 type; /* Type of region */
57};
58
53struct mtrr_gentry { 59struct mtrr_gentry {
54 unsigned long base; /* Base address */ 60 __u64 base; /* Base address */
55 unsigned int size; /* Size of region */ 61 __u32 size; /* Size of region */
56 unsigned int regnum; /* Register number */ 62 __u32 regnum; /* Register number */
57 unsigned int type; /* Type of region */ 63 __u32 type; /* Type of region */
64 __u32 _pad; /* Unused */
58}; 65};
66
59#endif /* !__i386__ */ 67#endif /* !__i386__ */
60 68
61struct mtrr_var_range { 69struct mtrr_var_range {
diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
index bb7133dc155d..3427b7798dbc 100644
--- a/arch/x86/include/asm/posix_types.h
+++ b/arch/x86/include/asm/posix_types.h
@@ -7,7 +7,9 @@
7#else 7#else
8# ifdef __i386__ 8# ifdef __i386__
9# include "posix_types_32.h" 9# include "posix_types_32.h"
10# else 10# elif defined(__LP64__)
11# include "posix_types_64.h" 11# include "posix_types_64.h"
12# else
13# include "posix_types_x32.h"
12# endif 14# endif
13#endif 15#endif
diff --git a/arch/x86/include/asm/posix_types_32.h b/arch/x86/include/asm/posix_types_32.h
index f7d9adf82e53..99f262e04b91 100644
--- a/arch/x86/include/asm/posix_types_32.h
+++ b/arch/x86/include/asm/posix_types_32.h
@@ -7,79 +7,22 @@
7 * assume GCC is being used. 7 * assume GCC is being used.
8 */ 8 */
9 9
10typedef unsigned long __kernel_ino_t;
11typedef unsigned short __kernel_mode_t; 10typedef unsigned short __kernel_mode_t;
11#define __kernel_mode_t __kernel_mode_t
12
12typedef unsigned short __kernel_nlink_t; 13typedef unsigned short __kernel_nlink_t;
13typedef long __kernel_off_t; 14#define __kernel_nlink_t __kernel_nlink_t
14typedef int __kernel_pid_t; 15
15typedef unsigned short __kernel_ipc_pid_t; 16typedef unsigned short __kernel_ipc_pid_t;
17#define __kernel_ipc_pid_t __kernel_ipc_pid_t
18
16typedef unsigned short __kernel_uid_t; 19typedef unsigned short __kernel_uid_t;
17typedef unsigned short __kernel_gid_t; 20typedef unsigned short __kernel_gid_t;
18typedef unsigned int __kernel_size_t; 21#define __kernel_uid_t __kernel_uid_t
19typedef int __kernel_ssize_t;
20typedef int __kernel_ptrdiff_t;
21typedef long __kernel_time_t;
22typedef long __kernel_suseconds_t;
23typedef long __kernel_clock_t;
24typedef int __kernel_timer_t;
25typedef int __kernel_clockid_t;
26typedef int __kernel_daddr_t;
27typedef char * __kernel_caddr_t;
28typedef unsigned short __kernel_uid16_t;
29typedef unsigned short __kernel_gid16_t;
30typedef unsigned int __kernel_uid32_t;
31typedef unsigned int __kernel_gid32_t;
32 22
33typedef unsigned short __kernel_old_uid_t;
34typedef unsigned short __kernel_old_gid_t;
35typedef unsigned short __kernel_old_dev_t; 23typedef unsigned short __kernel_old_dev_t;
24#define __kernel_old_dev_t __kernel_old_dev_t
36 25
37#ifdef __GNUC__ 26#include <asm-generic/posix_types.h>
38typedef long long __kernel_loff_t;
39#endif
40
41typedef struct {
42 int val[2];
43} __kernel_fsid_t;
44
45#if defined(__KERNEL__)
46
47#undef __FD_SET
48#define __FD_SET(fd,fdsetp) \
49 asm volatile("btsl %1,%0": \
50 "+m" (*(__kernel_fd_set *)(fdsetp)) \
51 : "r" ((int)(fd)))
52
53#undef __FD_CLR
54#define __FD_CLR(fd,fdsetp) \
55 asm volatile("btrl %1,%0": \
56 "+m" (*(__kernel_fd_set *)(fdsetp)) \
57 : "r" ((int) (fd)))
58
59#undef __FD_ISSET
60#define __FD_ISSET(fd,fdsetp) \
61 (__extension__ \
62 ({ \
63 unsigned char __result; \
64 asm volatile("btl %1,%2 ; setb %0" \
65 : "=q" (__result) \
66 : "r" ((int)(fd)), \
67 "m" (*(__kernel_fd_set *)(fdsetp))); \
68 __result; \
69}))
70
71#undef __FD_ZERO
72#define __FD_ZERO(fdsetp) \
73do { \
74 int __d0, __d1; \
75 asm volatile("cld ; rep ; stosl" \
76 : "=m" (*(__kernel_fd_set *)(fdsetp)), \
77 "=&c" (__d0), "=&D" (__d1) \
78 : "a" (0), "1" (__FDSET_LONGS), \
79 "2" ((__kernel_fd_set *)(fdsetp)) \
80 : "memory"); \
81} while (0)
82
83#endif /* defined(__KERNEL__) */
84 27
85#endif /* _ASM_X86_POSIX_TYPES_32_H */ 28#endif /* _ASM_X86_POSIX_TYPES_32_H */
diff --git a/arch/x86/include/asm/posix_types_64.h b/arch/x86/include/asm/posix_types_64.h
index eb8d2d92b63e..cba0c1ead162 100644
--- a/arch/x86/include/asm/posix_types_64.h
+++ b/arch/x86/include/asm/posix_types_64.h
@@ -7,113 +7,13 @@
7 * assume GCC is being used. 7 * assume GCC is being used.
8 */ 8 */
9 9
10typedef unsigned long __kernel_ino_t;
11typedef unsigned int __kernel_mode_t;
12typedef unsigned long __kernel_nlink_t;
13typedef long __kernel_off_t;
14typedef int __kernel_pid_t;
15typedef int __kernel_ipc_pid_t;
16typedef unsigned int __kernel_uid_t;
17typedef unsigned int __kernel_gid_t;
18typedef unsigned long __kernel_size_t;
19typedef long __kernel_ssize_t;
20typedef long __kernel_ptrdiff_t;
21typedef long __kernel_time_t;
22typedef long __kernel_suseconds_t;
23typedef long __kernel_clock_t;
24typedef int __kernel_timer_t;
25typedef int __kernel_clockid_t;
26typedef int __kernel_daddr_t;
27typedef char * __kernel_caddr_t;
28typedef unsigned short __kernel_uid16_t;
29typedef unsigned short __kernel_gid16_t;
30
31#ifdef __GNUC__
32typedef long long __kernel_loff_t;
33#endif
34
35typedef struct {
36 int val[2];
37} __kernel_fsid_t;
38
39typedef unsigned short __kernel_old_uid_t; 10typedef unsigned short __kernel_old_uid_t;
40typedef unsigned short __kernel_old_gid_t; 11typedef unsigned short __kernel_old_gid_t;
41typedef __kernel_uid_t __kernel_uid32_t; 12#define __kernel_old_uid_t __kernel_old_uid_t
42typedef __kernel_gid_t __kernel_gid32_t;
43 13
44typedef unsigned long __kernel_old_dev_t; 14typedef unsigned long __kernel_old_dev_t;
15#define __kernel_old_dev_t __kernel_old_dev_t
45 16
46#ifdef __KERNEL__ 17#include <asm-generic/posix_types.h>
47
48#undef __FD_SET
49static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
50{
51 unsigned long _tmp = fd / __NFDBITS;
52 unsigned long _rem = fd % __NFDBITS;
53 fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
54}
55
56#undef __FD_CLR
57static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
58{
59 unsigned long _tmp = fd / __NFDBITS;
60 unsigned long _rem = fd % __NFDBITS;
61 fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
62}
63
64#undef __FD_ISSET
65static inline int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p)
66{
67 unsigned long _tmp = fd / __NFDBITS;
68 unsigned long _rem = fd % __NFDBITS;
69 return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
70}
71
72/*
73 * This will unroll the loop for the normal constant cases (8 or 32 longs,
74 * for 256 and 1024-bit fd_sets respectively)
75 */
76#undef __FD_ZERO
77static inline void __FD_ZERO(__kernel_fd_set *p)
78{
79 unsigned long *tmp = p->fds_bits;
80 int i;
81
82 if (__builtin_constant_p(__FDSET_LONGS)) {
83 switch (__FDSET_LONGS) {
84 case 32:
85 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
86 tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
87 tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
88 tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
89 tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0;
90 tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0;
91 tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0;
92 tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0;
93 return;
94 case 16:
95 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
96 tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
97 tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
98 tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
99 return;
100 case 8:
101 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
102 tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
103 return;
104 case 4:
105 tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
106 return;
107 }
108 }
109 i = __FDSET_LONGS;
110 while (i) {
111 i--;
112 *tmp = 0;
113 tmp++;
114 }
115}
116
117#endif /* defined(__KERNEL__) */
118 18
119#endif /* _ASM_X86_POSIX_TYPES_64_H */ 19#endif /* _ASM_X86_POSIX_TYPES_64_H */
diff --git a/arch/x86/include/asm/posix_types_x32.h b/arch/x86/include/asm/posix_types_x32.h
new file mode 100644
index 000000000000..85f9bdafa93c
--- /dev/null
+++ b/arch/x86/include/asm/posix_types_x32.h
@@ -0,0 +1,19 @@
1#ifndef _ASM_X86_POSIX_TYPES_X32_H
2#define _ASM_X86_POSIX_TYPES_X32_H
3
4/*
5 * This file is only used by user-level software, so you need to
6 * be a little careful about namespace pollution etc. Also, we cannot
7 * assume GCC is being used.
8 *
9 * These types should generally match the ones used by the 64-bit kernel,
10 *
11 */
12
13typedef long long __kernel_long_t;
14typedef unsigned long long __kernel_ulong_t;
15#define __kernel_long_t __kernel_long_t
16
17#include <asm/posix_types_64.h>
18
19#endif /* _ASM_X86_POSIX_TYPES_X32_H */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index a19542c1685e..f302ef6bb200 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -873,9 +873,9 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
873#define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \ 873#define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
874 0xc0000000 : 0xFFFFe000) 874 0xc0000000 : 0xFFFFe000)
875 875
876#define TASK_SIZE (test_thread_flag(TIF_IA32) ? \ 876#define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
877 IA32_PAGE_OFFSET : TASK_SIZE_MAX) 877 IA32_PAGE_OFFSET : TASK_SIZE_MAX)
878#define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? \ 878#define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_ADDR32)) ? \
879 IA32_PAGE_OFFSET : TASK_SIZE_MAX) 879 IA32_PAGE_OFFSET : TASK_SIZE_MAX)
880 880
881#define STACK_TOP TASK_SIZE 881#define STACK_TOP TASK_SIZE
@@ -897,6 +897,12 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
897 897
898#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1) 898#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1)
899extern unsigned long KSTK_ESP(struct task_struct *task); 899extern unsigned long KSTK_ESP(struct task_struct *task);
900
901/*
902 * User space RSP while inside the SYSCALL fast path
903 */
904DECLARE_PER_CPU(unsigned long, old_rsp);
905
900#endif /* CONFIG_X86_64 */ 906#endif /* CONFIG_X86_64 */
901 907
902extern void start_thread(struct pt_regs *regs, unsigned long new_ip, 908extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 35664547125b..dcfde52979c3 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -145,7 +145,6 @@ extern unsigned long
145convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs); 145convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
146extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, 146extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
147 int error_code, int si_code); 147 int error_code, int si_code);
148void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
149 148
150extern long syscall_trace_enter(struct pt_regs *); 149extern long syscall_trace_enter(struct pt_regs *);
151extern void syscall_trace_leave(struct pt_regs *); 150extern void syscall_trace_leave(struct pt_regs *);
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index 04459d25e66e..4a085383af27 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -230,34 +230,37 @@ struct sigcontext {
230 * User-space might still rely on the old definition: 230 * User-space might still rely on the old definition:
231 */ 231 */
232struct sigcontext { 232struct sigcontext {
233 unsigned long r8; 233 __u64 r8;
234 unsigned long r9; 234 __u64 r9;
235 unsigned long r10; 235 __u64 r10;
236 unsigned long r11; 236 __u64 r11;
237 unsigned long r12; 237 __u64 r12;
238 unsigned long r13; 238 __u64 r13;
239 unsigned long r14; 239 __u64 r14;
240 unsigned long r15; 240 __u64 r15;
241 unsigned long rdi; 241 __u64 rdi;
242 unsigned long rsi; 242 __u64 rsi;
243 unsigned long rbp; 243 __u64 rbp;
244 unsigned long rbx; 244 __u64 rbx;
245 unsigned long rdx; 245 __u64 rdx;
246 unsigned long rax; 246 __u64 rax;
247 unsigned long rcx; 247 __u64 rcx;
248 unsigned long rsp; 248 __u64 rsp;
249 unsigned long rip; 249 __u64 rip;
250 unsigned long eflags; /* RFLAGS */ 250 __u64 eflags; /* RFLAGS */
251 unsigned short cs; 251 __u16 cs;
252 unsigned short gs; 252 __u16 gs;
253 unsigned short fs; 253 __u16 fs;
254 unsigned short __pad0; 254 __u16 __pad0;
255 unsigned long err; 255 __u64 err;
256 unsigned long trapno; 256 __u64 trapno;
257 unsigned long oldmask; 257 __u64 oldmask;
258 unsigned long cr2; 258 __u64 cr2;
259 struct _fpstate __user *fpstate; /* zero when no FPU context */ 259 struct _fpstate __user *fpstate; /* zero when no FPU context */
260 unsigned long reserved1[8]; 260#ifndef __LP64__
261 __u32 __fpstate_pad;
262#endif
263 __u64 reserved1[8];
261}; 264};
262#endif /* !__KERNEL__ */ 265#endif /* !__KERNEL__ */
263 266
diff --git a/arch/x86/include/asm/sigframe.h b/arch/x86/include/asm/sigframe.h
index 4e0fe26d27d3..7c7c27c97daa 100644
--- a/arch/x86/include/asm/sigframe.h
+++ b/arch/x86/include/asm/sigframe.h
@@ -59,12 +59,25 @@ struct rt_sigframe_ia32 {
59#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */ 59#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
60 60
61#ifdef CONFIG_X86_64 61#ifdef CONFIG_X86_64
62
62struct rt_sigframe { 63struct rt_sigframe {
63 char __user *pretcode; 64 char __user *pretcode;
64 struct ucontext uc; 65 struct ucontext uc;
65 struct siginfo info; 66 struct siginfo info;
66 /* fp state follows here */ 67 /* fp state follows here */
67}; 68};
69
70#ifdef CONFIG_X86_X32_ABI
71
72struct rt_sigframe_x32 {
73 u64 pretcode;
74 struct ucontext_x32 uc;
75 compat_siginfo_t info;
76 /* fp state follows here */
77};
78
79#endif /* CONFIG_X86_X32_ABI */
80
68#endif /* CONFIG_X86_64 */ 81#endif /* CONFIG_X86_64 */
69 82
70#endif /* _ASM_X86_SIGFRAME_H */ 83#endif /* _ASM_X86_SIGFRAME_H */
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
new file mode 100644
index 000000000000..ada93b3b8c66
--- /dev/null
+++ b/arch/x86/include/asm/sighandling.h
@@ -0,0 +1,24 @@
1#ifndef _ASM_X86_SIGHANDLING_H
2#define _ASM_X86_SIGHANDLING_H
3
4#include <linux/compiler.h>
5#include <linux/ptrace.h>
6#include <linux/signal.h>
7
8#include <asm/processor-flags.h>
9
10#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
11
12#define __FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
13 X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
14 X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
15 X86_EFLAGS_CF)
16
17void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
18
19int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
20 unsigned long *pax);
21int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
22 struct pt_regs *regs, unsigned long mask);
23
24#endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index cb238526a9f1..3fda9db48819 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -10,6 +10,8 @@
10#ifndef _ASM_X86_SYS_IA32_H 10#ifndef _ASM_X86_SYS_IA32_H
11#define _ASM_X86_SYS_IA32_H 11#define _ASM_X86_SYS_IA32_H
12 12
13#ifdef CONFIG_COMPAT
14
13#include <linux/compiler.h> 15#include <linux/compiler.h>
14#include <linux/linkage.h> 16#include <linux/linkage.h>
15#include <linux/types.h> 17#include <linux/types.h>
@@ -36,8 +38,6 @@ asmlinkage long sys32_rt_sigaction(int, struct sigaction32 __user *,
36 struct sigaction32 __user *, unsigned int); 38 struct sigaction32 __user *, unsigned int);
37asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *, 39asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *,
38 struct old_sigaction32 __user *); 40 struct old_sigaction32 __user *);
39asmlinkage long sys32_rt_sigprocmask(int, compat_sigset_t __user *,
40 compat_sigset_t __user *, unsigned int);
41asmlinkage long sys32_alarm(unsigned int); 41asmlinkage long sys32_alarm(unsigned int);
42 42
43asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int); 43asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int);
@@ -83,4 +83,7 @@ asmlinkage long sys32_ipc(u32, int, int, int, compat_uptr_t, u32);
83 83
84asmlinkage long sys32_fanotify_mark(int, unsigned int, u32, u32, int, 84asmlinkage long sys32_fanotify_mark(int, unsigned int, u32, u32, int,
85 const char __user *); 85 const char __user *);
86
87#endif /* CONFIG_COMPAT */
88
86#endif /* _ASM_X86_SYS_IA32_H */ 89#endif /* _ASM_X86_SYS_IA32_H */
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index d962e5652a73..386b78686c4d 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -16,6 +16,7 @@
16#include <linux/sched.h> 16#include <linux/sched.h>
17#include <linux/err.h> 17#include <linux/err.h>
18#include <asm/asm-offsets.h> /* For NR_syscalls */ 18#include <asm/asm-offsets.h> /* For NR_syscalls */
19#include <asm/unistd.h>
19 20
20extern const unsigned long sys_call_table[]; 21extern const unsigned long sys_call_table[];
21 22
@@ -26,13 +27,13 @@ extern const unsigned long sys_call_table[];
26 */ 27 */
27static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) 28static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
28{ 29{
29 return regs->orig_ax; 30 return regs->orig_ax & __SYSCALL_MASK;
30} 31}
31 32
32static inline void syscall_rollback(struct task_struct *task, 33static inline void syscall_rollback(struct task_struct *task,
33 struct pt_regs *regs) 34 struct pt_regs *regs)
34{ 35{
35 regs->ax = regs->orig_ax; 36 regs->ax = regs->orig_ax & __SYSCALL_MASK;
36} 37}
37 38
38static inline long syscall_get_error(struct task_struct *task, 39static inline long syscall_get_error(struct task_struct *task,
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index cfd8144d5527..af1db7e722f4 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -86,7 +86,7 @@ struct thread_info {
86#define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */ 86#define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */
87#define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */ 87#define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */
88#define TIF_NOTSC 16 /* TSC is not accessible in userland */ 88#define TIF_NOTSC 16 /* TSC is not accessible in userland */
89#define TIF_IA32 17 /* 32bit process */ 89#define TIF_IA32 17 /* IA32 compatibility process */
90#define TIF_FORK 18 /* ret_from_fork */ 90#define TIF_FORK 18 /* ret_from_fork */
91#define TIF_MEMDIE 20 /* is terminating due to OOM killer */ 91#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
92#define TIF_DEBUG 21 /* uses debug registers */ 92#define TIF_DEBUG 21 /* uses debug registers */
@@ -95,6 +95,8 @@ struct thread_info {
95#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */ 95#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
96#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */ 96#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
97#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */ 97#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
98#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
99#define TIF_X32 30 /* 32-bit native x86-64 binary */
98 100
99#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) 101#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
100#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) 102#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
@@ -116,6 +118,8 @@ struct thread_info {
116#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP) 118#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
117#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES) 119#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
118#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) 120#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
121#define _TIF_ADDR32 (1 << TIF_ADDR32)
122#define _TIF_X32 (1 << TIF_X32)
119 123
120/* work to do in syscall_trace_enter() */ 124/* work to do in syscall_trace_enter() */
121#define _TIF_WORK_SYSCALL_ENTRY \ 125#define _TIF_WORK_SYSCALL_ENTRY \
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 21f77b89e47a..37cdc9d99bb1 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -1,7 +1,17 @@
1#ifndef _ASM_X86_UNISTD_H 1#ifndef _ASM_X86_UNISTD_H
2#define _ASM_X86_UNISTD_H 1 2#define _ASM_X86_UNISTD_H 1
3 3
4/* x32 syscall flag bit */
5#define __X32_SYSCALL_BIT 0x40000000
6
4#ifdef __KERNEL__ 7#ifdef __KERNEL__
8
9# ifdef CONFIG_X86_X32_ABI
10# define __SYSCALL_MASK (~(__X32_SYSCALL_BIT))
11# else
12# define __SYSCALL_MASK (~0)
13# endif
14
5# ifdef CONFIG_X86_32 15# ifdef CONFIG_X86_32
6 16
7# include <asm/unistd_32.h> 17# include <asm/unistd_32.h>
@@ -14,6 +24,7 @@
14# else 24# else
15 25
16# include <asm/unistd_64.h> 26# include <asm/unistd_64.h>
27# include <asm/unistd_64_x32.h>
17# define __ARCH_WANT_COMPAT_SYS_TIME 28# define __ARCH_WANT_COMPAT_SYS_TIME
18 29
19# endif 30# endif
@@ -52,8 +63,10 @@
52#else 63#else
53# ifdef __i386__ 64# ifdef __i386__
54# include <asm/unistd_32.h> 65# include <asm/unistd_32.h>
55# else 66# elif defined(__LP64__)
56# include <asm/unistd_64.h> 67# include <asm/unistd_64.h>
68# else
69# include <asm/unistd_x32.h>
57# endif 70# endif
58#endif 71#endif
59 72
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 08:18:06 -0500