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authorDominik Brodowski <linux@dominikbrodowski.net>2018-04-05 05:53:04 -0400
committerIngo Molnar <mingo@kernel.org>2018-04-05 10:59:38 -0400
commitebeb8c82ffaf94435806ff0b686fffd41dd410b5 (patch)
tree27e14910bb529a9e146949a9ea0563012bca2ea0
parent7303e30ec1d8fb5ca1f07c92d069241c32b2ee1b (diff)
syscalls/x86: Use 'struct pt_regs' based syscall calling for IA32_EMULATION and x32
Extend ARCH_HAS_SYSCALL_WRAPPER for i386 emulation and for x32 on 64-bit x86. For x32, all we need to do is to create an additional stub for each compat syscall which decodes the parameters in x86-64 ordering, e.g.: asmlinkage long __compat_sys_x32_xyzzy(struct pt_regs *regs) { return c_SyS_xyzzy(regs->di, regs->si, regs->dx); } For i386 emulation, we need to teach compat_sys_*() to take struct pt_regs as its only argument, e.g.: asmlinkage long __compat_sys_ia32_xyzzy(struct pt_regs *regs) { return c_SyS_xyzzy(regs->bx, regs->cx, regs->dx); } In addition, we need to create additional stubs for common syscalls (that is, for syscalls which have the same parameters on 32-bit and 64-bit), e.g.: asmlinkage long __sys_ia32_xyzzy(struct pt_regs *regs) { return c_sys_xyzzy(regs->bx, regs->cx, regs->dx); } This approach avoids leaking random user-provided register content down the call chain. This patch is based on an original proof-of-concept | From: Linus Torvalds <torvalds@linux-foundation.org> | Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> and was split up and heavily modified by me, in particular to base it on ARCH_HAS_SYSCALL_WRAPPER. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180405095307.3730-6-linux@dominikbrodowski.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat
-rw-r--r--arch/x86/Kconfig2
-rw-r--r--arch/x86/entry/common.c4
-rw-r--r--arch/x86/entry/syscall_32.c15
-rw-r--r--arch/x86/entry/syscalls/syscall_32.tbl677
-rw-r--r--arch/x86/entry/syscalls/syscall_64.tbl74
-rw-r--r--arch/x86/include/asm/syscall_wrapper.h117
6 files changed, 509 insertions, 380 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 67348efc2540..7bbd6a174722 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2957,5 +2957,5 @@ source "lib/Kconfig"
2957 2957
2958config SYSCALL_PTREGS 2958config SYSCALL_PTREGS
2959 def_bool y 2959 def_bool y
2960 depends on X86_64 && !COMPAT 2960 depends on X86_64
2961 select ARCH_HAS_SYSCALL_WRAPPER 2961 select ARCH_HAS_SYSCALL_WRAPPER
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index e1b91bffa988..425f798b39e3 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -325,6 +325,9 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs)
325 325
326 if (likely(nr < IA32_NR_syscalls)) { 326 if (likely(nr < IA32_NR_syscalls)) {
327 nr = array_index_nospec(nr, IA32_NR_syscalls); 327 nr = array_index_nospec(nr, IA32_NR_syscalls);
328#ifdef CONFIG_SYSCALL_PTREGS
329 regs->ax = ia32_sys_call_table[nr](regs);
330#else
328 /* 331 /*
329 * It's possible that a 32-bit syscall implementation 332 * It's possible that a 32-bit syscall implementation
330 * takes a 64-bit parameter but nonetheless assumes that 333 * takes a 64-bit parameter but nonetheless assumes that
@@ -335,6 +338,7 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs)
335 (unsigned int)regs->bx, (unsigned int)regs->cx, 338 (unsigned int)regs->bx, (unsigned int)regs->cx,
336 (unsigned int)regs->dx, (unsigned int)regs->si, 339 (unsigned int)regs->dx, (unsigned int)regs->si,
337 (unsigned int)regs->di, (unsigned int)regs->bp); 340 (unsigned int)regs->di, (unsigned int)regs->bp);
341#endif /* CONFIG_SYSCALL_PTREGS */
338 } 342 }
339 343
340 syscall_return_slowpath(regs); 344 syscall_return_slowpath(regs);
diff --git a/arch/x86/entry/syscall_32.c b/arch/x86/entry/syscall_32.c
index 95c294963612..47060dd8efb1 100644
--- a/arch/x86/entry/syscall_32.c
+++ b/arch/x86/entry/syscall_32.c
@@ -7,14 +7,23 @@
7#include <asm/asm-offsets.h> 7#include <asm/asm-offsets.h>
8#include <asm/syscall.h> 8#include <asm/syscall.h>
9 9
10#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; 10#ifdef CONFIG_SYSCALL_PTREGS
11/* On X86_64, we use struct pt_regs * to pass parameters to syscalls */
12#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
13
14/* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
15extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
16
17#else /* CONFIG_SYSCALL_PTREGS */
18#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
19extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
20#endif /* CONFIG_SYSCALL_PTREGS */
21
11#include <asm/syscalls_32.h> 22#include <asm/syscalls_32.h>
12#undef __SYSCALL_I386 23#undef __SYSCALL_I386
13 24
14#define __SYSCALL_I386(nr, sym, qual) [nr] = sym, 25#define __SYSCALL_I386(nr, sym, qual) [nr] = sym,
15 26
16extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
17
18__visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = { 27__visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = {
19 /* 28 /*
20 * Smells like a compiler bug -- it doesn't work 29 * Smells like a compiler bug -- it doesn't work
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index c58f75b088c5..7f09a3da0b3d 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -4,390 +4,395 @@
4# The format is: 4# The format is:
5# <number> <abi> <name> <entry point> <compat entry point> 5# <number> <abi> <name> <entry point> <compat entry point>
6# 6#
7# The __sys_ia32 and __compat_sys_ia32 stubs are created on-the-fly for
8# sys_*() system calls and compat_sys_*() compat system calls if
9# IA32_EMULATION is defined, and expect struct pt_regs *regs as their only
10# parameter.
11#
7# The abi is always "i386" for this file. 12# The abi is always "i386" for this file.
8# 13#
90 i386 restart_syscall sys_restart_syscall 140 i386 restart_syscall sys_restart_syscall
101 i386 exit sys_exit 151 i386 exit sys_exit __sys_ia32_exit
112 i386 fork sys_fork 162 i386 fork sys_fork
123 i386 read sys_read 173 i386 read sys_read __sys_ia32_read
134 i386 write sys_write 184 i386 write sys_write __sys_ia32_write
145 i386 open sys_open compat_sys_open 195 i386 open sys_open __compat_sys_ia32_open
156 i386 close sys_close 206 i386 close sys_close __sys_ia32_close
167 i386 waitpid sys_waitpid 217 i386 waitpid sys_waitpid __sys_ia32_waitpid
178 i386 creat sys_creat 228 i386 creat sys_creat __sys_ia32_creat
189 i386 link sys_link 239 i386 link sys_link __sys_ia32_link
1910 i386 unlink sys_unlink 2410 i386 unlink sys_unlink __sys_ia32_unlink
2011 i386 execve sys_execve compat_sys_execve 2511 i386 execve sys_execve __compat_sys_ia32_execve
2112 i386 chdir sys_chdir 2612 i386 chdir sys_chdir __sys_ia32_chdir
2213 i386 time sys_time compat_sys_time 2713 i386 time sys_time __compat_sys_ia32_time
2314 i386 mknod sys_mknod 2814 i386 mknod sys_mknod __sys_ia32_mknod
2415 i386 chmod sys_chmod 2915 i386 chmod sys_chmod __sys_ia32_chmod
2516 i386 lchown sys_lchown16 3016 i386 lchown sys_lchown16 __sys_ia32_lchown16
2617 i386 break 3117 i386 break
2718 i386 oldstat sys_stat 3218 i386 oldstat sys_stat __sys_ia32_stat
2819 i386 lseek sys_lseek compat_sys_lseek 3319 i386 lseek sys_lseek __compat_sys_ia32_lseek
2920 i386 getpid sys_getpid 3420 i386 getpid sys_getpid
3021 i386 mount sys_mount compat_sys_mount 3521 i386 mount sys_mount __compat_sys_ia32_mount
3122 i386 umount sys_oldumount 3622 i386 umount sys_oldumount __sys_ia32_oldumount
3223 i386 setuid sys_setuid16 3723 i386 setuid sys_setuid16 __sys_ia32_setuid16
3324 i386 getuid sys_getuid16 3824 i386 getuid sys_getuid16
3425 i386 stime sys_stime compat_sys_stime 3925 i386 stime sys_stime __compat_sys_ia32_stime
3526 i386 ptrace sys_ptrace compat_sys_ptrace 4026 i386 ptrace sys_ptrace __compat_sys_ia32_ptrace
3627 i386 alarm sys_alarm 4127 i386 alarm sys_alarm __sys_ia32_alarm
3728 i386 oldfstat sys_fstat 4228 i386 oldfstat sys_fstat __sys_ia32_fstat
3829 i386 pause sys_pause 4329 i386 pause sys_pause
3930 i386 utime sys_utime compat_sys_utime 4430 i386 utime sys_utime __compat_sys_ia32_utime
4031 i386 stty 4531 i386 stty
4132 i386 gtty 4632 i386 gtty
4233 i386 access sys_access 4733 i386 access sys_access __sys_ia32_access
4334 i386 nice sys_nice 4834 i386 nice sys_nice __sys_ia32_nice
4435 i386 ftime 4935 i386 ftime
4536 i386 sync sys_sync 5036 i386 sync sys_sync
4637 i386 kill sys_kill 5137 i386 kill sys_kill __sys_ia32_kill
4738 i386 rename sys_rename 5238 i386 rename sys_rename __sys_ia32_rename
4839 i386 mkdir sys_mkdir 5339 i386 mkdir sys_mkdir __sys_ia32_mkdir
4940 i386 rmdir sys_rmdir 5440 i386 rmdir sys_rmdir __sys_ia32_rmdir
5041 i386 dup sys_dup 5541 i386 dup sys_dup __sys_ia32_dup
5142 i386 pipe sys_pipe 5642 i386 pipe sys_pipe __sys_ia32_pipe
5243 i386 times sys_times compat_sys_times 5743 i386 times sys_times __compat_sys_ia32_times
5344 i386 prof 5844 i386 prof
5445 i386 brk sys_brk 5945 i386 brk sys_brk __sys_ia32_brk
5546 i386 setgid sys_setgid16 6046 i386 setgid sys_setgid16 __sys_ia32_setgid16
5647 i386 getgid sys_getgid16 6147 i386 getgid sys_getgid16
5748 i386 signal sys_signal 6248 i386 signal sys_signal __sys_ia32_signal
5849 i386 geteuid sys_geteuid16 6349 i386 geteuid sys_geteuid16
5950 i386 getegid sys_getegid16 6450 i386 getegid sys_getegid16
6051 i386 acct sys_acct 6551 i386 acct sys_acct __sys_ia32_acct
6152 i386 umount2 sys_umount 6652 i386 umount2 sys_umount __sys_ia32_umount
6253 i386 lock 6753 i386 lock
6354 i386 ioctl sys_ioctl compat_sys_ioctl 6854 i386 ioctl sys_ioctl __compat_sys_ia32_ioctl
6455 i386 fcntl sys_fcntl compat_sys_fcntl64 6955 i386 fcntl sys_fcntl __compat_sys_ia32_fcntl64
6556 i386 mpx 7056 i386 mpx
6657 i386 setpgid sys_setpgid 7157 i386 setpgid sys_setpgid __sys_ia32_setpgid
6758 i386 ulimit 7258 i386 ulimit
6859 i386 oldolduname sys_olduname 7359 i386 oldolduname sys_olduname __sys_ia32_olduname
6960 i386 umask sys_umask 7460 i386 umask sys_umask __sys_ia32_umask
7061 i386 chroot sys_chroot 7561 i386 chroot sys_chroot __sys_ia32_chroot
7162 i386 ustat sys_ustat compat_sys_ustat 7662 i386 ustat sys_ustat __compat_sys_ia32_ustat
7263 i386 dup2 sys_dup2 7763 i386 dup2 sys_dup2 __sys_ia32_dup2
7364 i386 getppid sys_getppid 7864 i386 getppid sys_getppid
7465 i386 getpgrp sys_getpgrp 7965 i386 getpgrp sys_getpgrp
7566 i386 setsid sys_setsid 8066 i386 setsid sys_setsid
7667 i386 sigaction sys_sigaction compat_sys_sigaction 8167 i386 sigaction sys_sigaction __compat_sys_ia32_sigaction
7768 i386 sgetmask sys_sgetmask 8268 i386 sgetmask sys_sgetmask
7869 i386 ssetmask sys_ssetmask 8369 i386 ssetmask sys_ssetmask __sys_ia32_ssetmask
7970 i386 setreuid sys_setreuid16 8470 i386 setreuid sys_setreuid16 __sys_ia32_setreuid16
8071 i386 setregid sys_setregid16 8571 i386 setregid sys_setregid16 __sys_ia32_setregid16
8172 i386 sigsuspend sys_sigsuspend 8672 i386 sigsuspend sys_sigsuspend __sys_ia32_sigsuspend
8273 i386 sigpending sys_sigpending compat_sys_sigpending 8773 i386 sigpending sys_sigpending __compat_sys_ia32_sigpending
8374 i386 sethostname sys_sethostname 8874 i386 sethostname sys_sethostname __sys_ia32_sethostname
8475 i386 setrlimit sys_setrlimit compat_sys_setrlimit 8975 i386 setrlimit sys_setrlimit __compat_sys_ia32_setrlimit
8576 i386 getrlimit sys_old_getrlimit compat_sys_old_getrlimit 9076 i386 getrlimit sys_old_getrlimit __compat_sys_ia32_old_getrlimit
8677 i386 getrusage sys_getrusage compat_sys_getrusage 9177 i386 getrusage sys_getrusage __compat_sys_ia32_getrusage
8778 i386 gettimeofday sys_gettimeofday compat_sys_gettimeofday 9278 i386 gettimeofday sys_gettimeofday __compat_sys_ia32_gettimeofday
8879 i386 settimeofday sys_settimeofday compat_sys_settimeofday 9379 i386 settimeofday sys_settimeofday __compat_sys_ia32_settimeofday
8980 i386 getgroups sys_getgroups16 9480 i386 getgroups sys_getgroups16 __sys_ia32_getgroups16
9081 i386 setgroups sys_setgroups16 9581 i386 setgroups sys_setgroups16 __sys_ia32_setgroups16
9182 i386 select sys_old_select compat_sys_old_select 9682 i386 select sys_old_select __compat_sys_ia32_old_select
9283 i386 symlink sys_symlink 9783 i386 symlink sys_symlink __sys_ia32_symlink
9384 i386 oldlstat sys_lstat 9884 i386 oldlstat sys_lstat __sys_ia32_lstat
9485 i386 readlink sys_readlink 9985 i386 readlink sys_readlink __sys_ia32_readlink
9586 i386 uselib sys_uselib 10086 i386 uselib sys_uselib __sys_ia32_uselib
9687 i386 swapon sys_swapon 10187 i386 swapon sys_swapon __sys_ia32_swapon
9788 i386 reboot sys_reboot 10288 i386 reboot sys_reboot __sys_ia32_reboot
9889 i386 readdir sys_old_readdir compat_sys_old_readdir 10389 i386 readdir sys_old_readdir __compat_sys_ia32_old_readdir
9990 i386 mmap sys_old_mmap compat_sys_x86_mmap 10490 i386 mmap sys_old_mmap __compat_sys_ia32_x86_mmap
10091 i386 munmap sys_munmap 10591 i386 munmap sys_munmap __sys_ia32_munmap
10192 i386 truncate sys_truncate compat_sys_truncate 10692 i386 truncate sys_truncate __compat_sys_ia32_truncate
10293 i386 ftruncate sys_ftruncate compat_sys_ftruncate 10793 i386 ftruncate sys_ftruncate __compat_sys_ia32_ftruncate
10394 i386 fchmod sys_fchmod 10894 i386 fchmod sys_fchmod __sys_ia32_fchmod
10495 i386 fchown sys_fchown16 10995 i386 fchown sys_fchown16 __sys_ia32_fchown16
10596 i386 getpriority sys_getpriority 11096 i386 getpriority sys_getpriority __sys_ia32_getpriority
10697 i386 setpriority sys_setpriority 11197 i386 setpriority sys_setpriority __sys_ia32_setpriority
10798 i386 profil 11298 i386 profil
10899 i386 statfs sys_statfs compat_sys_statfs 11399 i386 statfs sys_statfs __compat_sys_ia32_statfs
109100 i386 fstatfs sys_fstatfs compat_sys_fstatfs 114100 i386 fstatfs sys_fstatfs __compat_sys_ia32_fstatfs
110101 i386 ioperm sys_ioperm 115101 i386 ioperm sys_ioperm __sys_ia32_ioperm
111102 i386 socketcall sys_socketcall compat_sys_socketcall 116102 i386 socketcall sys_socketcall __compat_sys_ia32_socketcall
112103 i386 syslog sys_syslog 117103 i386 syslog sys_syslog __sys_ia32_syslog
113104 i386 setitimer sys_setitimer compat_sys_setitimer 118104 i386 setitimer sys_setitimer __compat_sys_ia32_setitimer
114105 i386 getitimer sys_getitimer compat_sys_getitimer 119105 i386 getitimer sys_getitimer __compat_sys_ia32_getitimer
115106 i386 stat sys_newstat compat_sys_newstat 120106 i386 stat sys_newstat __compat_sys_ia32_newstat
116107 i386 lstat sys_newlstat compat_sys_newlstat 121107 i386 lstat sys_newlstat __compat_sys_ia32_newlstat
117108 i386 fstat sys_newfstat compat_sys_newfstat 122108 i386 fstat sys_newfstat __compat_sys_ia32_newfstat
118109 i386 olduname sys_uname 123109 i386 olduname sys_uname __sys_ia32_uname
119110 i386 iopl sys_iopl 124110 i386 iopl sys_iopl __sys_ia32_iopl
120111 i386 vhangup sys_vhangup 125111 i386 vhangup sys_vhangup
121112 i386 idle 126112 i386 idle
122113 i386 vm86old sys_vm86old sys_ni_syscall 127113 i386 vm86old sys_vm86old sys_ni_syscall
123114 i386 wait4 sys_wait4 compat_sys_wait4 128114 i386 wait4 sys_wait4 __compat_sys_ia32_wait4
124115 i386 swapoff sys_swapoff 129115 i386 swapoff sys_swapoff __sys_ia32_swapoff
125116 i386 sysinfo sys_sysinfo compat_sys_sysinfo 130116 i386 sysinfo sys_sysinfo __compat_sys_ia32_sysinfo
126117 i386 ipc sys_ipc compat_sys_ipc 131117 i386 ipc sys_ipc __compat_sys_ia32_ipc
127118 i386 fsync sys_fsync 132118 i386 fsync sys_fsync __sys_ia32_fsync
128119 i386 sigreturn sys_sigreturn sys32_sigreturn 133119 i386 sigreturn sys_sigreturn sys32_sigreturn
129120 i386 clone sys_clone compat_sys_x86_clone 134120 i386 clone sys_clone __compat_sys_ia32_x86_clone
130121 i386 setdomainname sys_setdomainname 135121 i386 setdomainname sys_setdomainname __sys_ia32_setdomainname
131122 i386 uname sys_newuname 136122 i386 uname sys_newuname __sys_ia32_newuname
132123 i386 modify_ldt sys_modify_ldt 137123 i386 modify_ldt sys_modify_ldt __sys_ia32_modify_ldt
133124 i386 adjtimex sys_adjtimex compat_sys_adjtimex 138124 i386 adjtimex sys_adjtimex __compat_sys_ia32_adjtimex
134125 i386 mprotect sys_mprotect 139125 i386 mprotect sys_mprotect __sys_ia32_mprotect
135126 i386 sigprocmask sys_sigprocmask compat_sys_sigprocmask 140126 i386 sigprocmask sys_sigprocmask __compat_sys_ia32_sigprocmask
136127 i386 create_module 141127 i386 create_module
137128 i386 init_module sys_init_module 142128 i386 init_module sys_init_module __sys_ia32_init_module
138129 i386 delete_module sys_delete_module 143129 i386 delete_module sys_delete_module __sys_ia32_delete_module
139130 i386 get_kernel_syms 144130 i386 get_kernel_syms
140131 i386 quotactl sys_quotactl compat_sys_quotactl32 145131 i386 quotactl sys_quotactl __compat_sys_ia32_quotactl32
141132 i386 getpgid sys_getpgid 146132 i386 getpgid sys_getpgid __sys_ia32_getpgid
142133 i386 fchdir sys_fchdir 147133 i386 fchdir sys_fchdir __sys_ia32_fchdir
143134 i386 bdflush sys_bdflush 148134 i386 bdflush sys_bdflush __sys_ia32_bdflush
144135 i386 sysfs sys_sysfs 149135 i386 sysfs sys_sysfs __sys_ia32_sysfs
145136 i386 personality sys_personality 150136 i386 personality sys_personality __sys_ia32_personality
146137 i386 afs_syscall 151137 i386 afs_syscall
147138 i386 setfsuid sys_setfsuid16 152138 i386 setfsuid sys_setfsuid16 __sys_ia32_setfsuid16
148139 i386 setfsgid sys_setfsgid16 153139 i386 setfsgid sys_setfsgid16 __sys_ia32_setfsgid16
149140 i386 _llseek sys_llseek 154140 i386 _llseek sys_llseek __sys_ia32_llseek
150141 i386 getdents sys_getdents compat_sys_getdents 155141 i386 getdents sys_getdents __compat_sys_ia32_getdents
151142 i386 _newselect sys_select compat_sys_select 156142 i386 _newselect sys_select __compat_sys_ia32_select
152143 i386 flock sys_flock 157143 i386 flock sys_flock __sys_ia32_flock
153144 i386 msync sys_msync 158144 i386 msync sys_msync __sys_ia32_msync
154145 i386 readv sys_readv compat_sys_readv 159145 i386 readv sys_readv __compat_sys_ia32_readv
155146 i386 writev sys_writev compat_sys_writev 160146 i386 writev sys_writev __compat_sys_ia32_writev
156147 i386 getsid sys_getsid 161147 i386 getsid sys_getsid __sys_ia32_getsid
157148 i386 fdatasync sys_fdatasync 162148 i386 fdatasync sys_fdatasync __sys_ia32_fdatasync
158149 i386 _sysctl sys_sysctl compat_sys_sysctl 163149 i386 _sysctl sys_sysctl __compat_sys_ia32_sysctl
159150 i386 mlock sys_mlock 164150 i386 mlock sys_mlock __sys_ia32_mlock
160151 i386 munlock sys_munlock 165151 i386 munlock sys_munlock __sys_ia32_munlock
161152 i386 mlockall sys_mlockall 166152 i386 mlockall sys_mlockall __sys_ia32_mlockall
162153 i386 munlockall sys_munlockall 167153 i386 munlockall sys_munlockall
163154 i386 sched_setparam sys_sched_setparam 168154 i386 sched_setparam sys_sched_setparam __sys_ia32_sched_setparam
164155 i386 sched_getparam sys_sched_getparam 169155 i386 sched_getparam sys_sched_getparam __sys_ia32_sched_getparam
165156 i386 sched_setscheduler sys_sched_setscheduler 170156 i386 sched_setscheduler sys_sched_setscheduler __sys_ia32_sched_setscheduler
166157 i386 sched_getscheduler sys_sched_getscheduler 171157 i386 sched_getscheduler sys_sched_getscheduler __sys_ia32_sched_getscheduler
167158 i386 sched_yield sys_sched_yield 172158 i386 sched_yield sys_sched_yield
168159 i386 sched_get_priority_max sys_sched_get_priority_max 173159 i386 sched_get_priority_max sys_sched_get_priority_max __sys_ia32_sched_get_priority_max
169160 i386 sched_get_priority_min sys_sched_get_priority_min 174160 i386 sched_get_priority_min sys_sched_get_priority_min __sys_ia32_sched_get_priority_min
170161 i386 sched_rr_get_interval sys_sched_rr_get_interval compat_sys_sched_rr_get_interval 175161 i386 sched_rr_get_interval sys_sched_rr_get_interval __compat_sys_ia32_sched_rr_get_interval
171162 i386 nanosleep sys_nanosleep compat_sys_nanosleep 176162 i386 nanosleep sys_nanosleep __compat_sys_ia32_nanosleep
172163 i386 mremap sys_mremap 177163 i386 mremap sys_mremap __sys_ia32_mremap
173164 i386 setresuid sys_setresuid16 178164 i386 setresuid sys_setresuid16 __sys_ia32_setresuid16
174165 i386 getresuid sys_getresuid16 179165 i386 getresuid sys_getresuid16 __sys_ia32_getresuid16
175166 i386 vm86 sys_vm86 sys_ni_syscall 180166 i386 vm86 sys_vm86 sys_ni_syscall
176167 i386 query_module 181167 i386 query_module
177168 i386 poll sys_poll 182168 i386 poll sys_poll __sys_ia32_poll
178169 i386 nfsservctl 183169 i386 nfsservctl
179170 i386 setresgid sys_setresgid16 184170 i386 setresgid sys_setresgid16 __sys_ia32_setresgid16
180171 i386 getresgid sys_getresgid16 185171 i386 getresgid sys_getresgid16 __sys_ia32_getresgid16
181172 i386 prctl sys_prctl 186172 i386 prctl sys_prctl __sys_ia32_prctl
182173 i386 rt_sigreturn sys_rt_sigreturn sys32_rt_sigreturn 187173 i386 rt_sigreturn sys_rt_sigreturn sys32_rt_sigreturn
183174 i386 rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction 188174 i386 rt_sigaction sys_rt_sigaction __compat_sys_ia32_rt_sigaction
184175 i386 rt_sigprocmask sys_rt_sigprocmask 189175 i386 rt_sigprocmask sys_rt_sigprocmask __sys_ia32_rt_sigprocmask
185176 i386 rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending 190176 i386 rt_sigpending sys_rt_sigpending __compat_sys_ia32_rt_sigpending
186177 i386 rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait 191177 i386 rt_sigtimedwait sys_rt_sigtimedwait __compat_sys_ia32_rt_sigtimedwait
187178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo 192178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo __compat_sys_ia32_rt_sigqueueinfo
188179 i386 rt_sigsuspend sys_rt_sigsuspend 193179 i386 rt_sigsuspend sys_rt_sigsuspend __sys_ia32_rt_sigsuspend
189180 i386 pread64 sys_pread64 compat_sys_x86_pread 194180 i386 pread64 sys_pread64 __compat_sys_ia32_x86_pread
190181 i386 pwrite64 sys_pwrite64 compat_sys_x86_pwrite 195181 i386 pwrite64 sys_pwrite64 __compat_sys_ia32_x86_pwrite
191182 i386 chown sys_chown16 196182 i386 chown sys_chown16 __sys_ia32_chown16
192183 i386 getcwd sys_getcwd 197183 i386 getcwd sys_getcwd __sys_ia32_getcwd
193184 i386 capget sys_capget 198184 i386 capget sys_capget __sys_ia32_capget
194185 i386 capset sys_capset 199185 i386 capset sys_capset __sys_ia32_capset
195186 i386 sigaltstack sys_sigaltstack compat_sys_sigaltstack 200186 i386 sigaltstack sys_sigaltstack __compat_sys_ia32_sigaltstack
196187 i386 sendfile sys_sendfile compat_sys_sendfile 201187 i386 sendfile sys_sendfile __compat_sys_ia32_sendfile
197188 i386 getpmsg 202188 i386 getpmsg
198189 i386 putpmsg 203189 i386 putpmsg
199190 i386 vfork sys_vfork 204190 i386 vfork sys_vfork
200191 i386 ugetrlimit sys_getrlimit compat_sys_getrlimit 205191 i386 ugetrlimit sys_getrlimit __compat_sys_ia32_getrlimit
201192 i386 mmap2 sys_mmap_pgoff 206192 i386 mmap2 sys_mmap_pgoff __sys_ia32_mmap_pgoff
202193 i386 truncate64 sys_truncate64 compat_sys_x86_truncate64 207193 i386 truncate64 sys_truncate64 __compat_sys_ia32_x86_truncate64
203194 i386 ftruncate64 sys_ftruncate64 compat_sys_x86_ftruncate64 208194 i386 ftruncate64 sys_ftruncate64 __compat_sys_ia32_x86_ftruncate64
204195 i386 stat64 sys_stat64 compat_sys_x86_stat64 209195 i386 stat64 sys_stat64 __compat_sys_ia32_x86_stat64
205196 i386 lstat64 sys_lstat64 compat_sys_x86_lstat64 210196 i386 lstat64 sys_lstat64 __compat_sys_ia32_x86_lstat64
206197 i386 fstat64 sys_fstat64 compat_sys_x86_fstat64 211197 i386 fstat64 sys_fstat64 __compat_sys_ia32_x86_fstat64
207198 i386 lchown32 sys_lchown 212198 i386 lchown32 sys_lchown __sys_ia32_lchown
208199 i386 getuid32 sys_getuid 213199 i386 getuid32 sys_getuid
209200 i386 getgid32 sys_getgid 214200 i386 getgid32 sys_getgid
210201 i386 geteuid32 sys_geteuid 215201 i386 geteuid32 sys_geteuid
211202 i386 getegid32 sys_getegid 216202 i386 getegid32 sys_getegid
212203 i386 setreuid32 sys_setreuid 217203 i386 setreuid32 sys_setreuid __sys_ia32_setreuid
213204 i386 setregid32 sys_setregid 218204 i386 setregid32 sys_setregid __sys_ia32_setregid
214205 i386 getgroups32 sys_getgroups 219205 i386 getgroups32 sys_getgroups __sys_ia32_getgroups
215206 i386 setgroups32 sys_setgroups 220206 i386 setgroups32 sys_setgroups __sys_ia32_setgroups
216207 i386 fchown32 sys_fchown 221207 i386 fchown32 sys_fchown __sys_ia32_fchown
217208 i386 setresuid32 sys_setresuid 222208 i386 setresuid32 sys_setresuid __sys_ia32_setresuid
218209 i386 getresuid32 sys_getresuid 223209 i386 getresuid32 sys_getresuid __sys_ia32_getresuid
219210 i386 setresgid32 sys_setresgid 224210 i386 setresgid32 sys_setresgid __sys_ia32_setresgid
220211 i386 getresgid32 sys_getresgid 225211 i386 getresgid32 sys_getresgid __sys_ia32_getresgid
221212 i386 chown32 sys_chown 226212 i386 chown32 sys_chown __sys_ia32_chown
222213 i386 setuid32 sys_setuid 227213 i386 setuid32 sys_setuid __sys_ia32_setuid
223214 i386 setgid32 sys_setgid 228214 i386 setgid32 sys_setgid __sys_ia32_setgid
224215 i386 setfsuid32 sys_setfsuid 229215 i386 setfsuid32 sys_setfsuid __sys_ia32_setfsuid
225216 i386 setfsgid32 sys_setfsgid 230216 i386 setfsgid32 sys_setfsgid __sys_ia32_setfsgid
226217 i386 pivot_root sys_pivot_root 231217 i386 pivot_root sys_pivot_root __sys_ia32_pivot_root
227218 i386 mincore sys_mincore 232218 i386 mincore sys_mincore __sys_ia32_mincore
228219 i386 madvise sys_madvise 233219 i386 madvise sys_madvise __sys_ia32_madvise
229220 i386 getdents64 sys_getdents64 234220 i386 getdents64 sys_getdents64 __sys_ia32_getdents64
230221 i386 fcntl64 sys_fcntl64 compat_sys_fcntl64 235221 i386 fcntl64 sys_fcntl64 __compat_sys_ia32_fcntl64
231# 222 is unused 236# 222 is unused
232# 223 is unused 237# 223 is unused
233224 i386 gettid sys_gettid 238224 i386 gettid sys_gettid
234225 i386 readahead sys_readahead compat_sys_x86_readahead 239225 i386 readahead sys_readahead __compat_sys_ia32_x86_readahead
235226 i386 setxattr sys_setxattr 240226 i386 setxattr sys_setxattr __sys_ia32_setxattr
236227 i386 lsetxattr sys_lsetxattr 241227 i386 lsetxattr sys_lsetxattr __sys_ia32_lsetxattr
237228 i386 fsetxattr sys_fsetxattr 242228 i386 fsetxattr sys_fsetxattr __sys_ia32_fsetxattr
238229 i386 getxattr sys_getxattr 243229 i386 getxattr sys_getxattr __sys_ia32_getxattr
239230 i386 lgetxattr sys_lgetxattr 244230 i386 lgetxattr sys_lgetxattr __sys_ia32_lgetxattr
240231 i386 fgetxattr sys_fgetxattr 245231 i386 fgetxattr sys_fgetxattr __sys_ia32_fgetxattr
241232 i386 listxattr sys_listxattr 246232 i386 listxattr sys_listxattr __sys_ia32_listxattr
242233 i386 llistxattr sys_llistxattr 247233 i386 llistxattr sys_llistxattr __sys_ia32_llistxattr
243234 i386 flistxattr sys_flistxattr 248234 i386 flistxattr sys_flistxattr __sys_ia32_flistxattr
244235 i386 removexattr sys_removexattr 249235 i386 removexattr sys_removexattr __sys_ia32_removexattr
245236 i386 lremovexattr sys_lremovexattr 250236 i386 lremovexattr sys_lremovexattr __sys_ia32_lremovexattr
246237 i386 fremovexattr sys_fremovexattr 251237 i386 fremovexattr sys_fremovexattr __sys_ia32_fremovexattr
247238 i386 tkill sys_tkill 252238 i386 tkill sys_tkill __sys_ia32_tkill
248239 i386 sendfile64 sys_sendfile64 253239 i386 sendfile64 sys_sendfile64 __sys_ia32_sendfile64
249240 i386 futex sys_futex compat_sys_futex 254240 i386 futex sys_futex __compat_sys_ia32_futex
250241 i386 sched_setaffinity sys_sched_setaffinity compat_sys_sched_setaffinity 255241 i386 sched_setaffinity sys_sched_setaffinity __compat_sys_ia32_sched_setaffinity
251242 i386 sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity 256242 i386 sched_getaffinity sys_sched_getaffinity __compat_sys_ia32_sched_getaffinity
252243 i386 set_thread_area sys_set_thread_area 257243 i386 set_thread_area sys_set_thread_area __sys_ia32_set_thread_area
253244 i386 get_thread_area sys_get_thread_area 258244 i386 get_thread_area sys_get_thread_area __sys_ia32_get_thread_area
254245 i386 io_setup sys_io_setup compat_sys_io_setup 259245 i386 io_setup sys_io_setup __compat_sys_ia32_io_setup
255246 i386 io_destroy sys_io_destroy 260246 i386 io_destroy sys_io_destroy __sys_ia32_io_destroy
256247 i386 io_getevents sys_io_getevents compat_sys_io_getevents 261247 i386 io_getevents sys_io_getevents __compat_sys_ia32_io_getevents
257248 i386 io_submit sys_io_submit compat_sys_io_submit 262248 i386 io_submit sys_io_submit __compat_sys_ia32_io_submit
258249 i386 io_cancel sys_io_cancel 263249 i386 io_cancel sys_io_cancel __sys_ia32_io_cancel
259250 i386 fadvise64 sys_fadvise64 compat_sys_x86_fadvise64 264250 i386 fadvise64 sys_fadvise64 __compat_sys_ia32_x86_fadvise64
260# 251 is available for reuse (was briefly sys_set_zone_reclaim) 265# 251 is available for reuse (was briefly sys_set_zone_reclaim)
261252 i386 exit_group sys_exit_group 266252 i386 exit_group sys_exit_group __sys_ia32_exit_group
262253 i386 lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie 267253 i386 lookup_dcookie sys_lookup_dcookie __compat_sys_ia32_lookup_dcookie
263254 i386 epoll_create sys_epoll_create 268254 i386 epoll_create sys_epoll_create __sys_ia32_epoll_create
264255 i386 epoll_ctl sys_epoll_ctl 269255 i386 epoll_ctl sys_epoll_ctl __sys_ia32_epoll_ctl
265256 i386 epoll_wait sys_epoll_wait 270256 i386 epoll_wait sys_epoll_wait __sys_ia32_epoll_wait
266257 i386 remap_file_pages sys_remap_file_pages 271257 i386 remap_file_pages sys_remap_file_pages __sys_ia32_remap_file_pages
267258 i386 set_tid_address sys_set_tid_address 272258 i386 set_tid_address sys_set_tid_address __sys_ia32_set_tid_address
268259 i386 timer_create sys_timer_create compat_sys_timer_create 273259 i386 timer_create sys_timer_create __compat_sys_ia32_timer_create
269260 i386 timer_settime sys_timer_settime compat_sys_timer_settime 274260 i386 timer_settime sys_timer_settime __compat_sys_ia32_timer_settime
270261 i386 timer_gettime sys_timer_gettime compat_sys_timer_gettime 275261 i386 timer_gettime sys_timer_gettime __compat_sys_ia32_timer_gettime
271262 i386 timer_getoverrun sys_timer_getoverrun 276262 i386 timer_getoverrun sys_timer_getoverrun __sys_ia32_timer_getoverrun
272263 i386 timer_delete sys_timer_delete 277263 i386 timer_delete sys_timer_delete __sys_ia32_timer_delete
273264 i386 clock_settime sys_clock_settime compat_sys_clock_settime 278264 i386 clock_settime sys_clock_settime __compat_sys_ia32_clock_settime
274265 i386 clock_gettime sys_clock_gettime compat_sys_clock_gettime 279265 i386 clock_gettime sys_clock_gettime __compat_sys_ia32_clock_gettime
275266 i386 clock_getres sys_clock_getres compat_sys_clock_getres 280266 i386 clock_getres sys_clock_getres __compat_sys_ia32_clock_getres
276267 i386 clock_nanosleep sys_clock_nanosleep compat_sys_clock_nanosleep 281267 i386 clock_nanosleep sys_clock_nanosleep __compat_sys_ia32_clock_nanosleep
277268 i386 statfs64 sys_statfs64 compat_sys_statfs64 282268 i386 statfs64 sys_statfs64 __compat_sys_ia32_statfs64
278269 i386 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64 283269 i386 fstatfs64 sys_fstatfs64 __compat_sys_ia32_fstatfs64
279270 i386 tgkill sys_tgkill 284270 i386 tgkill sys_tgkill __sys_ia32_tgkill
280271 i386 utimes sys_utimes compat_sys_utimes 285271 i386 utimes sys_utimes __compat_sys_ia32_utimes
281272 i386 fadvise64_64 sys_fadvise64_64 compat_sys_x86_fadvise64_64 286272 i386 fadvise64_64 sys_fadvise64_64 __compat_sys_ia32_x86_fadvise64_64
282273 i386 vserver 287273 i386 vserver
283274 i386 mbind sys_mbind 288274 i386 mbind sys_mbind __sys_ia32_mbind
284275 i386 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy 289275 i386 get_mempolicy sys_get_mempolicy __compat_sys_ia32_get_mempolicy
285276 i386 set_mempolicy sys_set_mempolicy 290276 i386 set_mempolicy sys_set_mempolicy __sys_ia32_set_mempolicy
286277 i386 mq_open sys_mq_open compat_sys_mq_open 291277 i386 mq_open sys_mq_open __compat_sys_ia32_mq_open
287278 i386 mq_unlink sys_mq_unlink 292278 i386 mq_unlink sys_mq_unlink __sys_ia32_mq_unlink
288279 i386 mq_timedsend sys_mq_timedsend compat_sys_mq_timedsend 293279 i386 mq_timedsend sys_mq_timedsend __compat_sys_ia32_mq_timedsend
289280 i386 mq_timedreceive sys_mq_timedreceive compat_sys_mq_timedreceive 294280 i386 mq_timedreceive sys_mq_timedreceive __compat_sys_ia32_mq_timedreceive
290281 i386 mq_notify sys_mq_notify compat_sys_mq_notify 295281 i386 mq_notify sys_mq_notify __compat_sys_ia32_mq_notify
291282 i386 mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr 296282 i386 mq_getsetattr sys_mq_getsetattr __compat_sys_ia32_mq_getsetattr
292283 i386 kexec_load sys_kexec_load compat_sys_kexec_load 297283 i386 kexec_load sys_kexec_load __compat_sys_ia32_kexec_load
293284 i386 waitid sys_waitid compat_sys_waitid 298284 i386 waitid sys_waitid __compat_sys_ia32_waitid
294# 285 sys_setaltroot 299# 285 sys_setaltroot
295286 i386 add_key sys_add_key 300286 i386 add_key sys_add_key __sys_ia32_add_key
296287 i386 request_key sys_request_key 301287 i386 request_key sys_request_key __sys_ia32_request_key
297288 i386 keyctl sys_keyctl compat_sys_keyctl 302288 i386 keyctl sys_keyctl __compat_sys_ia32_keyctl
298289 i386 ioprio_set sys_ioprio_set 303289 i386 ioprio_set sys_ioprio_set __sys_ia32_ioprio_set
299290 i386 ioprio_get sys_ioprio_get 304290 i386 ioprio_get sys_ioprio_get __sys_ia32_ioprio_get
300291 i386 inotify_init sys_inotify_init 305291 i386 inotify_init sys_inotify_init
301292 i386 inotify_add_watch sys_inotify_add_watch 306292 i386 inotify_add_watch sys_inotify_add_watch __sys_ia32_inotify_add_watch
302293 i386 inotify_rm_watch sys_inotify_rm_watch 307293 i386 inotify_rm_watch sys_inotify_rm_watch __sys_ia32_inotify_rm_watch
303294 i386 migrate_pages sys_migrate_pages 308294 i386 migrate_pages sys_migrate_pages __sys_ia32_migrate_pages
304295 i386 openat sys_openat compat_sys_openat 309295 i386 openat sys_openat __compat_sys_ia32_openat
305296 i386 mkdirat sys_mkdirat 310296 i386 mkdirat sys_mkdirat __sys_ia32_mkdirat
306297 i386 mknodat sys_mknodat 311297 i386 mknodat sys_mknodat __sys_ia32_mknodat
307298 i386 fchownat sys_fchownat 312298 i386 fchownat sys_fchownat __sys_ia32_fchownat
308299 i386 futimesat sys_futimesat compat_sys_futimesat 313299 i386 futimesat sys_futimesat __compat_sys_ia32_futimesat
309300 i386 fstatat64 sys_fstatat64 compat_sys_x86_fstatat 314300 i386 fstatat64 sys_fstatat64 __compat_sys_ia32_x86_fstatat
310301 i386 unlinkat sys_unlinkat 315301 i386 unlinkat sys_unlinkat __sys_ia32_unlinkat
311302 i386 renameat sys_renameat 316302 i386 renameat sys_renameat __sys_ia32_renameat
312303 i386 linkat sys_linkat 317303 i386 linkat sys_linkat __sys_ia32_linkat
313304 i386 symlinkat sys_symlinkat 318304 i386 symlinkat sys_symlinkat __sys_ia32_symlinkat
314305 i386 readlinkat sys_readlinkat 319305 i386 readlinkat sys_readlinkat __sys_ia32_readlinkat
315306 i386 fchmodat sys_fchmodat 320306 i386 fchmodat sys_fchmodat __sys_ia32_fchmodat
316307 i386 faccessat sys_faccessat 321307 i386 faccessat sys_faccessat __sys_ia32_faccessat
317308 i386 pselect6 sys_pselect6 compat_sys_pselect6 322308 i386 pselect6 sys_pselect6 __compat_sys_ia32_pselect6
318309 i386 ppoll sys_ppoll compat_sys_ppoll 323309 i386 ppoll sys_ppoll __compat_sys_ia32_ppoll
319310 i386 unshare sys_unshare 324310 i386 unshare sys_unshare __sys_ia32_unshare
320311 i386 set_robust_list sys_set_robust_list compat_sys_set_robust_list 325311 i386 set_robust_list sys_set_robust_list __compat_sys_ia32_set_robust_list
321312 i386 get_robust_list sys_get_robust_list compat_sys_get_robust_list 326312 i386 get_robust_list sys_get_robust_list __compat_sys_ia32_get_robust_list
322313 i386 splice sys_splice 327313 i386 splice sys_splice __sys_ia32_splice
323314 i386 sync_file_range sys_sync_file_range compat_sys_x86_sync_file_range 328314 i386 sync_file_range sys_sync_file_range __compat_sys_ia32_x86_sync_file_range
324315 i386 tee sys_tee 329315 i386 tee sys_tee __sys_ia32_tee
325316 i386 vmsplice sys_vmsplice compat_sys_vmsplice 330316 i386 vmsplice sys_vmsplice __compat_sys_ia32_vmsplice
326317 i386 move_pages sys_move_pages compat_sys_move_pages 331317 i386 move_pages sys_move_pages __compat_sys_ia32_move_pages
327318 i386 getcpu sys_getcpu 332318 i386 getcpu sys_getcpu __sys_ia32_getcpu
328319 i386 epoll_pwait sys_epoll_pwait 333319 i386 epoll_pwait sys_epoll_pwait __sys_ia32_epoll_pwait
329320 i386 utimensat sys_utimensat compat_sys_utimensat 334320 i386 utimensat sys_utimensat __compat_sys_ia32_utimensat
330321 i386 signalfd sys_signalfd compat_sys_signalfd 335321 i386 signalfd sys_signalfd __compat_sys_ia32_signalfd
331322 i386 timerfd_create sys_timerfd_create 336322 i386 timerfd_create sys_timerfd_create __sys_ia32_timerfd_create
332323 i386 eventfd sys_eventfd 337323 i386 eventfd sys_eventfd __sys_ia32_eventfd
333324 i386 fallocate sys_fallocate compat_sys_x86_fallocate 338324 i386 fallocate sys_fallocate __compat_sys_ia32_x86_fallocate
334325 i386 timerfd_settime sys_timerfd_settime compat_sys_timerfd_settime 339325 i386 timerfd_settime sys_timerfd_settime __compat_sys_ia32_timerfd_settime
335326 i386 timerfd_gettime sys_timerfd_gettime compat_sys_timerfd_gettime 340326 i386 timerfd_gettime sys_timerfd_gettime __compat_sys_ia32_timerfd_gettime
336327 i386 signalfd4 sys_signalfd4 compat_sys_signalfd4 341327 i386 signalfd4 sys_signalfd4 __compat_sys_ia32_signalfd4
337328 i386 eventfd2 sys_eventfd2 342328 i386 eventfd2 sys_eventfd2 __sys_ia32_eventfd2
338329 i386 epoll_create1 sys_epoll_create1 343329 i386 epoll_create1 sys_epoll_create1 __sys_ia32_epoll_create1
339330 i386 dup3 sys_dup3 344330 i386 dup3 sys_dup3 __sys_ia32_dup3
340331 i386 pipe2 sys_pipe2 345331 i386 pipe2 sys_pipe2 __sys_ia32_pipe2
341332 i386 inotify_init1 sys_inotify_init1 346332 i386 inotify_init1 sys_inotify_init1 __sys_ia32_inotify_init1
342333 i386 preadv sys_preadv compat_sys_preadv 347333 i386 preadv sys_preadv __compat_sys_ia32_preadv
343334 i386 pwritev sys_pwritev compat_sys_pwritev 348334 i386 pwritev sys_pwritev __compat_sys_ia32_pwritev
344335 i386 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo 349335 i386 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo __compat_sys_ia32_rt_tgsigqueueinfo
345336 i386 perf_event_open sys_perf_event_open 350336 i386 perf_event_open sys_perf_event_open __sys_ia32_perf_event_open
346337 i386 recvmmsg sys_recvmmsg compat_sys_recvmmsg 351337 i386 recvmmsg sys_recvmmsg __compat_sys_ia32_recvmmsg
347338 i386 fanotify_init sys_fanotify_init 352338 i386 fanotify_init sys_fanotify_init __sys_ia32_fanotify_init
348339 i386 fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark 353339 i386 fanotify_mark sys_fanotify_mark __compat_sys_ia32_fanotify_mark
349340 i386 prlimit64 sys_prlimit64 354340 i386 prlimit64 sys_prlimit64 __sys_ia32_prlimit64
350341 i386 name_to_handle_at sys_name_to_handle_at 355341 i386 name_to_handle_at sys_name_to_handle_at __sys_ia32_name_to_handle_at
351342 i386 open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at 356342 i386 open_by_handle_at sys_open_by_handle_at __compat_sys_ia32_open_by_handle_at
352343 i386 clock_adjtime sys_clock_adjtime compat_sys_clock_adjtime 357343 i386 clock_adjtime sys_clock_adjtime __compat_sys_ia32_clock_adjtime
353344 i386 syncfs sys_syncfs 358344 i386 syncfs sys_syncfs __sys_ia32_syncfs
354345 i386 sendmmsg sys_sendmmsg compat_sys_sendmmsg 359345 i386 sendmmsg sys_sendmmsg __compat_sys_ia32_sendmmsg
355346 i386 setns sys_setns 360346 i386 setns sys_setns __sys_ia32_setns
356347 i386 process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv 361347 i386 process_vm_readv sys_process_vm_readv __compat_sys_ia32_process_vm_readv
357348 i386 process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev 362348 i386 process_vm_writev sys_process_vm_writev __compat_sys_ia32_process_vm_writev
358349 i386 kcmp sys_kcmp 363349 i386 kcmp sys_kcmp __sys_ia32_kcmp
359350 i386 finit_module sys_finit_module 364350 i386 finit_module sys_finit_module __sys_ia32_finit_module
360351 i386 sched_setattr sys_sched_setattr 365351 i386 sched_setattr sys_sched_setattr __sys_ia32_sched_setattr
361352 i386 sched_getattr sys_sched_getattr 366352 i386 sched_getattr sys_sched_getattr __sys_ia32_sched_getattr
362353 i386 renameat2 sys_renameat2 367353 i386 renameat2 sys_renameat2 __sys_ia32_renameat2
363354 i386 seccomp sys_seccomp 368354 i386 seccomp sys_seccomp __sys_ia32_seccomp
364355 i386 getrandom sys_getrandom 369355 i386 getrandom sys_getrandom __sys_ia32_getrandom
365356 i386 memfd_create sys_memfd_create 370356 i386 memfd_create sys_memfd_create __sys_ia32_memfd_create
366357 i386 bpf sys_bpf 371357 i386 bpf sys_bpf __sys_ia32_bpf
367358 i386 execveat sys_execveat compat_sys_execveat 372358 i386 execveat sys_execveat __compat_sys_ia32_execveat
368359 i386 socket sys_socket 373359 i386 socket sys_socket __sys_ia32_socket
369360 i386 socketpair sys_socketpair 374360 i386 socketpair sys_socketpair __sys_ia32_socketpair
370361 i386 bind sys_bind 375361 i386 bind sys_bind __sys_ia32_bind
371362 i386 connect sys_connect 376362 i386 connect sys_connect __sys_ia32_connect
372363 i386 listen sys_listen 377363 i386 listen sys_listen __sys_ia32_listen
373364 i386 accept4 sys_accept4 378364 i386 accept4 sys_accept4 __sys_ia32_accept4
374365 i386 getsockopt sys_getsockopt compat_sys_getsockopt 379365 i386 getsockopt sys_getsockopt __compat_sys_ia32_getsockopt
375366 i386 setsockopt sys_setsockopt compat_sys_setsockopt 380366 i386 setsockopt sys_setsockopt __compat_sys_ia32_setsockopt
376367 i386 getsockname sys_getsockname 381367 i386 getsockname sys_getsockname __sys_ia32_getsockname
377368 i386 getpeername sys_getpeername 382368 i386 getpeername sys_getpeername __sys_ia32_getpeername
378369 i386 sendto sys_sendto 383369 i386 sendto sys_sendto __sys_ia32_sendto
379370 i386 sendmsg sys_sendmsg compat_sys_sendmsg 384370 i386 sendmsg sys_sendmsg __compat_sys_ia32_sendmsg
380371 i386 recvfrom sys_recvfrom compat_sys_recvfrom 385371 i386 recvfrom sys_recvfrom __compat_sys_ia32_recvfrom
381372 i386 recvmsg sys_recvmsg compat_sys_recvmsg 386372 i386 recvmsg sys_recvmsg __compat_sys_ia32_recvmsg
382373 i386 shutdown sys_shutdown 387373 i386 shutdown sys_shutdown __sys_ia32_shutdown
383374 i386 userfaultfd sys_userfaultfd 388374 i386 userfaultfd sys_userfaultfd __sys_ia32_userfaultfd
384375 i386 membarrier sys_membarrier 389375 i386 membarrier sys_membarrier __sys_ia32_membarrier
385376 i386 mlock2 sys_mlock2 390376 i386 mlock2 sys_mlock2 __sys_ia32_mlock2
386377 i386 copy_file_range sys_copy_file_range 391377 i386 copy_file_range sys_copy_file_range __sys_ia32_copy_file_range
387378 i386 preadv2 sys_preadv2 compat_sys_preadv2 392378 i386 preadv2 sys_preadv2 __compat_sys_ia32_preadv2
388379 i386 pwritev2 sys_pwritev2 compat_sys_pwritev2 393379 i386 pwritev2 sys_pwritev2 __compat_sys_ia32_pwritev2
389380 i386 pkey_mprotect sys_pkey_mprotect 394380 i386 pkey_mprotect sys_pkey_mprotect __sys_ia32_pkey_mprotect
390381 i386 pkey_alloc sys_pkey_alloc 395381 i386 pkey_alloc sys_pkey_alloc __sys_ia32_pkey_alloc
391382 i386 pkey_free sys_pkey_free 396382 i386 pkey_free sys_pkey_free __sys_ia32_pkey_free
392383 i386 statx sys_statx 397383 i386 statx sys_statx __sys_ia32_statx
393384 i386 arch_prctl sys_arch_prctl compat_sys_arch_prctl 398384 i386 arch_prctl sys_arch_prctl __compat_sys_ia32_arch_prctl
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 5aef183e2f85..a83c0f7f462f 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -342,41 +342,43 @@
342 342
343# 343#
344# x32-specific system call numbers start at 512 to avoid cache impact 344# x32-specific system call numbers start at 512 to avoid cache impact
345# for native 64-bit operation. 345# for native 64-bit operation. The __compat_sys_x32 stubs are created
346# on-the-fly for compat_sys_*() compatibility system calls if X86_X32
347# is defined.
346# 348#
347512 x32 rt_sigaction compat_sys_rt_sigaction 349512 x32 rt_sigaction __compat_sys_x32_rt_sigaction
348513 x32 rt_sigreturn sys32_x32_rt_sigreturn 350513 x32 rt_sigreturn sys32_x32_rt_sigreturn
349514 x32 ioctl compat_sys_ioctl 351514 x32 ioctl __compat_sys_x32_ioctl
350515 x32 readv compat_sys_readv 352515 x32 readv __compat_sys_x32_readv
351516 x32 writev compat_sys_writev 353516 x32 writev __compat_sys_x32_writev
352517 x32 recvfrom compat_sys_recvfrom 354517 x32 recvfrom __compat_sys_x32_recvfrom
353518 x32 sendmsg compat_sys_sendmsg 355518 x32 sendmsg __compat_sys_x32_sendmsg
354519 x32 recvmsg compat_sys_recvmsg 356519 x32 recvmsg __compat_sys_x32_recvmsg
355520 x32 execve compat_sys_execve/ptregs 357520 x32 execve __compat_sys_x32_execve/ptregs
356521 x32 ptrace compat_sys_ptrace 358521 x32 ptrace __compat_sys_x32_ptrace
357522 x32 rt_sigpending compat_sys_rt_sigpending 359522 x32 rt_sigpending __compat_sys_x32_rt_sigpending
358523 x32 rt_sigtimedwait compat_sys_rt_sigtimedwait 360523 x32 rt_sigtimedwait __compat_sys_x32_rt_sigtimedwait
359524 x32 rt_sigqueueinfo compat_sys_rt_sigqueueinfo 361524 x32 rt_sigqueueinfo __compat_sys_x32_rt_sigqueueinfo
360525 x32 sigaltstack compat_sys_sigaltstack 362525 x32 sigaltstack __compat_sys_x32_sigaltstack
361526 x32 timer_create compat_sys_timer_create 363526 x32 timer_create __compat_sys_x32_timer_create
362527 x32 mq_notify compat_sys_mq_notify 364527 x32 mq_notify __compat_sys_x32_mq_notify
363528 x32 kexec_load compat_sys_kexec_load 365528 x32 kexec_load __compat_sys_x32_kexec_load
364529 x32 waitid compat_sys_waitid 366529 x32 waitid __compat_sys_x32_waitid
365530 x32 set_robust_list compat_sys_set_robust_list 367530 x32 set_robust_list __compat_sys_x32_set_robust_list
366531 x32 get_robust_list compat_sys_get_robust_list 368531 x32 get_robust_list __compat_sys_x32_get_robust_list
367532 x32 vmsplice compat_sys_vmsplice 369532 x32 vmsplice __compat_sys_x32_vmsplice
368533 x32 move_pages compat_sys_move_pages 370533 x32 move_pages __compat_sys_x32_move_pages
369534 x32 preadv compat_sys_preadv64 371534 x32 preadv __compat_sys_x32_preadv64
370535 x32 pwritev compat_sys_pwritev64 372535 x32 pwritev __compat_sys_x32_pwritev64
371536 x32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo 373536 x32 rt_tgsigqueueinfo __compat_sys_x32_rt_tgsigqueueinfo
372537 x32 recvmmsg compat_sys_recvmmsg 374537 x32 recvmmsg __compat_sys_x32_recvmmsg
373538 x32 sendmmsg compat_sys_sendmmsg 375538 x32 sendmmsg __compat_sys_x32_sendmmsg
374539 x32 process_vm_readv compat_sys_process_vm_readv 376539 x32 process_vm_readv __compat_sys_x32_process_vm_readv
375540 x32 process_vm_writev compat_sys_process_vm_writev 377540 x32 process_vm_writev __compat_sys_x32_process_vm_writev
376541 x32 setsockopt compat_sys_setsockopt 378541 x32 setsockopt __compat_sys_x32_setsockopt
377542 x32 getsockopt compat_sys_getsockopt 379542 x32 getsockopt __compat_sys_x32_getsockopt
378543 x32 io_setup compat_sys_io_setup 380543 x32 io_setup __compat_sys_x32_io_setup
379544 x32 io_submit compat_sys_io_submit 381544 x32 io_submit __compat_sys_x32_io_submit
380545 x32 execveat compat_sys_execveat/ptregs 382545 x32 execveat __compat_sys_x32_execveat/ptregs
381546 x32 preadv2 compat_sys_preadv64v2 383546 x32 preadv2 __compat_sys_x32_preadv64v2
382547 x32 pwritev2 compat_sys_pwritev64v2 384547 x32 pwritev2 __compat_sys_x32_pwritev64v2
diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h
index 702bdee377af..49d7e4970110 100644
--- a/arch/x86/include/asm/syscall_wrapper.h
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -6,6 +6,111 @@
6#ifndef _ASM_X86_SYSCALL_WRAPPER_H 6#ifndef _ASM_X86_SYSCALL_WRAPPER_H
7#define _ASM_X86_SYSCALL_WRAPPER_H 7#define _ASM_X86_SYSCALL_WRAPPER_H
8 8
9/* Mapping of registers to parameters for syscalls on x86-64 and x32 */
10#define SC_X86_64_REGS_TO_ARGS(x, ...) \
11 __MAP(x,__SC_ARGS \
12 ,,regs->di,,regs->si,,regs->dx \
13 ,,regs->r10,,regs->r8,,regs->r9) \
14
15/* Mapping of registers to parameters for syscalls on i386 */
16#define SC_IA32_REGS_TO_ARGS(x, ...) \
17 __MAP(x,__SC_ARGS \
18 ,,(unsigned int)regs->bx,,(unsigned int)regs->cx \
19 ,,(unsigned int)regs->dx,,(unsigned int)regs->si \
20 ,,(unsigned int)regs->di,,(unsigned int)regs->bp)
21
22#ifdef CONFIG_IA32_EMULATION
23/*
24 * For IA32 emulation, we need to handle "compat" syscalls *and* create
25 * additional wrappers (aptly named __sys_ia32_sys_xyzzy) which decode the
26 * ia32 regs in the proper order for shared or "common" syscalls. As some
27 * syscalls may not be implemented, we need to expand COND_SYSCALL in
28 * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this
29 * case as well.
30 */
31#define COMPAT_SC_IA32_STUBx(x, name, ...) \
32 asmlinkage long __compat_sys_ia32##name(const struct pt_regs *regs);\
33 ALLOW_ERROR_INJECTION(__compat_sys_ia32##name, ERRNO); \
34 asmlinkage long __compat_sys_ia32##name(const struct pt_regs *regs)\
35 { \
36 return c_SyS##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__));\
37 } \
38
39#define SC_IA32_WRAPPERx(x, name, ...) \
40 asmlinkage long __sys_ia32##name(const struct pt_regs *regs); \
41 ALLOW_ERROR_INJECTION(__sys_ia32##name, ERRNO); \
42 asmlinkage long __sys_ia32##name(const struct pt_regs *regs) \
43 { \
44 return SyS##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__)); \
45 }
46
47#define COND_SYSCALL(name) \
48 cond_syscall(sys_##name); \
49 cond_syscall(__sys_ia32_##name)
50
51#define SYS_NI(name) \
52 SYSCALL_ALIAS(sys_##name, sys_ni_posix_timers); \
53 SYSCALL_ALIAS(__sys_ia32_##name, sys_ni_posix_timers)
54
55#else /* CONFIG_IA32_EMULATION */
56#define COMPAT_SC_IA32_STUBx(x, name, ...)
57#define SC_IA32_WRAPPERx(x, fullname, name, ...)
58#endif /* CONFIG_IA32_EMULATION */
59
60
61#ifdef CONFIG_X86_X32
62/*
63 * For the x32 ABI, we need to create a stub for compat_sys_*() which is aware
64 * of the x86-64-style parameter ordering of x32 syscalls. The syscalls common
65 * with x86_64 obviously do not need such care.
66 */
67#define COMPAT_SC_X32_STUBx(x, name, ...) \
68 asmlinkage long __compat_sys_x32##name(const struct pt_regs *regs);\
69 ALLOW_ERROR_INJECTION(__compat_sys_x32##name, ERRNO); \
70 asmlinkage long __compat_sys_x32##name(const struct pt_regs *regs)\
71 { \
72 return c_SyS##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\
73 } \
74
75#else /* CONFIG_X86_X32 */
76#define COMPAT_SC_X32_STUBx(x, name, ...)
77#endif /* CONFIG_X86_X32 */
78
79
80#ifdef CONFIG_COMPAT
81/*
82 * Compat means IA32_EMULATION and/or X86_X32. As they use a different
83 * mapping of registers to parameters, we need to generate stubs for each
84 * of them. There is no need to implement COMPAT_SYSCALL_DEFINE0, as it is
85 * unused on x86.
86 */
87#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
88 static long c_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
89 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
90 COMPAT_SC_IA32_STUBx(x, name, __VA_ARGS__) \
91 COMPAT_SC_X32_STUBx(x, name, __VA_ARGS__) \
92 static long c_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
93 { \
94 return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
95 } \
96 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
97
98/*
99 * As some compat syscalls may not be implemented, we need to expand
100 * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
101 * kernel/time/posix-stubs.c to cover this case as well.
102 */
103#define COND_SYSCALL_COMPAT(name) \
104 cond_syscall(__compat_sys_ia32_##name); \
105 cond_syscall(__compat_sys_x32_##name)
106
107#define COMPAT_SYS_NI(name) \
108 SYSCALL_ALIAS(__compat_sys_ia32_##name, sys_ni_posix_timers); \
109 SYSCALL_ALIAS(__compat_sys_x32_##name, sys_ni_posix_timers)
110
111#endif /* CONFIG_COMPAT */
112
113
9/* 114/*
10 * Instead of the generic __SYSCALL_DEFINEx() definition, this macro takes 115 * Instead of the generic __SYSCALL_DEFINEx() definition, this macro takes
11 * struct pt_regs *regs as the only argument of the syscall stub named 116 * struct pt_regs *regs as the only argument of the syscall stub named
@@ -34,9 +139,14 @@
34 * This approach avoids leaking random user-provided register content down 139 * This approach avoids leaking random user-provided register content down
35 * the call chain. 140 * the call chain.
36 * 141 *
142 * If IA32_EMULATION is enabled, this macro generates an additional wrapper
143 * named __sys_ia32_*() which decodes the struct pt_regs *regs according
144 * to the i386 calling convention (bx, cx, dx, si, di, bp).
145 *
37 * As the generic SYSCALL_DEFINE0() macro does not decode any parameters for 146 * As the generic SYSCALL_DEFINE0() macro does not decode any parameters for
38 * obvious reasons, and passing struct pt_regs *regs to it in %rdi does not 147 * obvious reasons, and passing struct pt_regs *regs to it in %rdi does not
39 * hurt, there is no need to override it. 148 * hurt, there is no need to override it, or to define it differently for
149 * IA32_EMULATION.
40 */ 150 */
41#define __SYSCALL_DEFINEx(x, name, ...) \ 151#define __SYSCALL_DEFINEx(x, name, ...) \
42 asmlinkage long sys##name(const struct pt_regs *regs); \ 152 asmlinkage long sys##name(const struct pt_regs *regs); \
@@ -45,10 +155,9 @@
45 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ 155 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
46 asmlinkage long sys##name(const struct pt_regs *regs) \ 156 asmlinkage long sys##name(const struct pt_regs *regs) \
47 { \ 157 { \
48 return SyS##name(__MAP(x,__SC_ARGS \ 158 return SyS##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\
49 ,,regs->di,,regs->si,,regs->dx \
50 ,,regs->r10,,regs->r8,,regs->r9)); \
51 } \ 159 } \
160 SC_IA32_WRAPPERx(x, name, __VA_ARGS__) \
52 static long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 161 static long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
53 { \ 162 { \
54 long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ 163 long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-29 03:01:26 -0500