compat: generic compat get/settimeofday

[linux-2.6-omap-h63xx.git] / arch / x86 / ia32 / ia32entry.S

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index e4bd1793a5e415bc90b5a39a5e77f2182e01be60..256b00b61892b2e3049ef8ff65a672df701efc77 100644 (file)
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -39,11 +39,11 @@
        .endm 
 
        /* clobbers %eax */     
-       .macro  CLEAR_RREGS
+       .macro  CLEAR_RREGS _r9=rax
        xorl    %eax,%eax
        movq    %rax,R11(%rsp)
        movq    %rax,R10(%rsp)
-       movq    %rax,R9(%rsp)
+       movq    %\_r9,R9(%rsp)
        movq    %rax,R8(%rsp)
        .endm
 
@@ -52,11 +52,10 @@
         * We don't reload %eax because syscall_trace_enter() returned
         * the value it wants us to use in the table lookup.
         */
-       .macro LOAD_ARGS32 offset
-       movl \offset(%rsp),%r11d
-       movl \offset+8(%rsp),%r10d
+       .macro LOAD_ARGS32 offset, _r9=0
+       .if \_r9
        movl \offset+16(%rsp),%r9d
-       movl \offset+24(%rsp),%r8d
+       .endif
        movl \offset+40(%rsp),%ecx
        movl \offset+48(%rsp),%edx
        movl \offset+56(%rsp),%esi
@@ -145,7 +144,7 @@ ENTRY(ia32_sysenter_target)
        SAVE_ARGS 0,0,1
        /* no need to do an access_ok check here because rbp has been
           32bit zero extended */ 
-1:     movl    (%rbp),%r9d
+1:     movl    (%rbp),%ebp
        .section __ex_table,"a"
        .quad 1b,ia32_badarg
        .previous       
@@ -157,7 +156,7 @@ ENTRY(ia32_sysenter_target)
        cmpl    $(IA32_NR_syscalls-1),%eax
        ja      ia32_badsys
 sysenter_do_call:
-       IA32_ARG_FIXUP 1
+       IA32_ARG_FIXUP
 sysenter_dispatch:
        call    *ia32_sys_call_table(,%rax,8)
        movq    %rax,RAX-ARGOFFSET(%rsp)
@@ -201,7 +200,7 @@ sysexit_from_sys_call:
        movl RDI-ARGOFFSET(%rsp),%r8d   /* reload 5th syscall arg */
        .endm
 
-       .macro auditsys_exit exit
+       .macro auditsys_exit exit,ebpsave=RBP
        testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r10)
        jnz int_ret_from_sys_call
        TRACE_IRQS_ON
@@ -214,7 +213,7 @@ sysexit_from_sys_call:
        call audit_syscall_exit
        GET_THREAD_INFO(%r10)
        movl RAX-ARGOFFSET(%rsp),%eax   /* reload syscall return value */
-       movl RBP-ARGOFFSET(%rsp),%ebp   /* reload user register value */
+       movl \ebpsave-ARGOFFSET(%rsp),%ebp /* reload user register value */
        movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
        cli
        TRACE_IRQS_OFF
@@ -234,20 +233,17 @@ sysexit_audit:
 #endif
 
 sysenter_tracesys:
-       xchgl   %r9d,%ebp
 #ifdef CONFIG_AUDITSYSCALL
        testl   $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r10)
        jz      sysenter_auditsys
 #endif
        SAVE_REST
        CLEAR_RREGS
-       movq    %r9,R9(%rsp)
        movq    $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */
        movq    %rsp,%rdi        /* &pt_regs -> arg1 */
        call    syscall_trace_enter
        LOAD_ARGS32 ARGOFFSET  /* reload args from stack in case ptrace changed it */
        RESTORE_REST
-       xchgl   %ebp,%r9d
        cmpl    $(IA32_NR_syscalls-1),%eax
        ja      int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
        jmp     sysenter_do_call
@@ -314,9 +310,9 @@ ENTRY(ia32_cstar_target)
        testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
        CFI_REMEMBER_STATE
        jnz   cstar_tracesys
-cstar_do_call: 
        cmpl $IA32_NR_syscalls-1,%eax
        ja  ia32_badsys
+cstar_do_call:
        IA32_ARG_FIXUP 1
 cstar_dispatch:
        call *ia32_sys_call_table(,%rax,8)
@@ -347,7 +343,7 @@ cstar_auditsys:
        jmp cstar_dispatch
 
 sysretl_audit:
-       auditsys_exit sysretl_from_sys_call
+       auditsys_exit sysretl_from_sys_call, RCX /* user %ebp in RCX slot */
 #endif
 
 cstar_tracesys:
@@ -357,15 +353,13 @@ cstar_tracesys:
 #endif
        xchgl %r9d,%ebp
        SAVE_REST
-       CLEAR_RREGS
-       movq %r9,R9(%rsp)
+       CLEAR_RREGS r9
        movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
        movq %rsp,%rdi        /* &pt_regs -> arg1 */
        call syscall_trace_enter
-       LOAD_ARGS32 ARGOFFSET  /* reload args from stack in case ptrace changed it */
+       LOAD_ARGS32 ARGOFFSET, 1  /* reload args from stack in case ptrace changed it */
        RESTORE_REST
        xchgl %ebp,%r9d
-       movl RSP-ARGOFFSET(%rsp), %r8d
        cmpl $(IA32_NR_syscalls-1),%eax
        ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
        jmp cstar_do_call
@@ -577,8 +571,8 @@ ia32_sys_call_table:
        .quad compat_sys_setrlimit      /* 75 */
        .quad compat_sys_old_getrlimit  /* old_getrlimit */
        .quad compat_sys_getrusage
-       .quad sys32_gettimeofday
-       .quad sys32_settimeofday
+       .quad compat_sys_gettimeofday
+       .quad compat_sys_settimeofday
        .quad sys_getgroups16   /* 80 */
        .quad sys_setgroups16
        .quad sys32_old_select