#include <asm/vsyscall32.h>
#include <linux/linkage.h>
+#define IA32_NR_syscalls ((ia32_syscall_end - ia32_sys_call_table)/8)
+
.macro IA32_ARG_FIXUP noebp=0
movl %edi,%r8d
.if \noebp
CFI_REMEMBER_STATE
jnz sysenter_tracesys
sysenter_do_call:
- cmpl $(IA32_NR_syscalls),%eax
- jae ia32_badsys
+ cmpl $(IA32_NR_syscalls-1),%eax
+ ja ia32_badsys
IA32_ARG_FIXUP 1
call *ia32_sys_call_table(,%rax,8)
movq %rax,RAX-ARGOFFSET(%rsp)
.previous
jmp sysenter_do_call
CFI_ENDPROC
+ENDPROC(ia32_sysenter_target)
/*
* 32bit SYSCALL instruction entry.
*/
ENTRY(ia32_cstar_target)
CFI_STARTPROC32 simple
- CFI_DEF_CFA rsp,0
+ CFI_DEF_CFA rsp,PDA_STACKOFFSET
CFI_REGISTER rip,rcx
/*CFI_REGISTER rflags,r11*/
swapgs
CFI_REMEMBER_STATE
jnz cstar_tracesys
cstar_do_call:
- cmpl $IA32_NR_syscalls,%eax
- jae ia32_badsys
+ cmpl $IA32_NR_syscalls-1,%eax
+ ja ia32_badsys
IA32_ARG_FIXUP 1
call *ia32_sys_call_table(,%rax,8)
movq %rax,RAX-ARGOFFSET(%rsp)
.quad 1b,ia32_badarg
.previous
jmp cstar_do_call
+END(ia32_cstar_target)
ia32_badarg:
movq $-EFAULT,%rax
testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP),threadinfo_flags(%r10)
jnz ia32_tracesys
ia32_do_syscall:
- cmpl $(IA32_NR_syscalls),%eax
- jae ia32_badsys
+ cmpl $(IA32_NR_syscalls-1),%eax
+ ja ia32_badsys
IA32_ARG_FIXUP
call *ia32_sys_call_table(,%rax,8) # xxx: rip relative
ia32_sysret:
LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
jmp ia32_do_syscall
+END(ia32_syscall)
ia32_badsys:
movq $0,ORIG_RAX-ARGOFFSET(%rsp)
movq $-ENOSYS,RAX-ARGOFFSET(%rsp)
jmp int_ret_from_sys_call
-ni_syscall:
- movq %rax,%rdi
- jmp sys32_ni_syscall
-
quiet_ni_syscall:
movq $-ENOSYS,%rax
ret
RESTORE_REST
jmp ia32_sysret /* misbalances the return cache */
CFI_ENDPROC
+END(ia32_ptregs_common)
.section .rodata,"a"
.align 8
- .globl ia32_sys_call_table
ia32_sys_call_table:
.quad sys_restart_syscall
.quad sys_exit
.quad sys_readlinkat /* 305 */
.quad sys_fchmodat
.quad sys_faccessat
- .quad sys_ni_syscall /* pselect6 for now */
- .quad sys_ni_syscall /* ppoll for now */
+ .quad quiet_ni_syscall /* pselect6 for now */
+ .quad quiet_ni_syscall /* ppoll for now */
.quad sys_unshare /* 310 */
.quad compat_sys_set_robust_list
.quad compat_sys_get_robust_list
+ .quad sys_splice
+ .quad sys_sync_file_range
+ .quad sys_tee
+ .quad compat_sys_vmsplice
+ .quad compat_sys_move_pages
ia32_syscall_end:
- .rept IA32_NR_syscalls-(ia32_syscall_end-ia32_sys_call_table)/8
- .quad ni_syscall
- .endr