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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libffi/] [src/] [s390/] [sysv.S] - Rev 818

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/* -----------------------------------------------------------------------
   sysv.S - Copyright (c) 2000 Software AG
            Copyright (c) 2008 Red Hat, Inc.
 
   S390 Foreign Function Interface
 
   Permission is hereby granted, free of charge, to any person obtaining
   a copy of this software and associated documentation files (the
   ``Software''), to deal in the Software without restriction, including
   without limitation the rights to use, copy, modify, merge, publish,
   distribute, sublicense, and/or sell copies of the Software, and to
   permit persons to whom the Software is furnished to do so, subject to
   the following conditions:
 
   The above copyright notice and this permission notice shall be included
   in all copies or substantial portions of the Software.
 
   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   DEALINGS IN THE SOFTWARE.
   ----------------------------------------------------------------------- */

#define LIBFFI_ASM
#include <fficonfig.h>
#include <ffi.h>

#ifndef __s390x__
 
.text

        # r2:   cif->bytes
        # r3:   &ecif
        # r4:   ffi_prep_args
        # r5:   ret_type
        # r6:   ecif.rvalue
        # ov:   fn 
 
        # This assumes we are using gas.
        .globl  ffi_call_SYSV
        .type   ffi_call_SYSV,%function
ffi_call_SYSV:
.LFB1:
        stm     %r6,%r15,24(%r15)               # Save registers
.LCFI0:
        basr    %r13,0                          # Set up base register
.Lbase:
        lr      %r11,%r15                       # Set up frame pointer
.LCFI1:
        sr      %r15,%r2
        ahi     %r15,-96-48                     # Allocate stack
        lr      %r8,%r6                         # Save ecif.rvalue
        sr      %r9,%r9
        ic      %r9,.Ltable-.Lbase(%r13,%r5)    # Load epilog address
        l       %r7,96(%r11)                    # Load function address
        st      %r11,0(%r15)                    # Set up back chain
        ahi     %r11,-48                        # Register save area
.LCFI2:

        la      %r2,96(%r15)                    # Save area
                                                # r3 already holds &ecif
        basr    %r14,%r4                        # Call ffi_prep_args

        lm      %r2,%r6,0(%r11)                 # Load arguments
        ld      %f0,32(%r11)
        ld      %f2,40(%r11)
        la      %r14,0(%r13,%r9)                # Set return address
        br      %r7                             # ... and call function

.LretNone:                                      # Return void
        l       %r4,48+56(%r11)
        lm      %r6,%r15,48+24(%r11)
        br      %r4

.LretFloat:
        l       %r4,48+56(%r11)
        ste     %f0,0(%r8)                      # Return float
        lm      %r6,%r15,48+24(%r11)
        br      %r4
 
.LretDouble:
        l       %r4,48+56(%r11)
        std     %f0,0(%r8)                      # Return double
        lm      %r6,%r15,48+24(%r11)
        br      %r4

.LretInt32:
        l       %r4,48+56(%r11)
        st      %r2,0(%r8)                      # Return int
        lm      %r6,%r15,48+24(%r11)
        br      %r4
 
.LretInt64:
        l       %r4,48+56(%r11)
        stm     %r2,%r3,0(%r8)                  # Return long long
        lm      %r6,%r15,48+24(%r11)
        br      %r4
 
.Ltable:
        .byte   .LretNone-.Lbase                # FFI390_RET_VOID
        .byte   .LretNone-.Lbase                # FFI390_RET_STRUCT
        .byte   .LretFloat-.Lbase               # FFI390_RET_FLOAT
        .byte   .LretDouble-.Lbase              # FFI390_RET_DOUBLE
        .byte   .LretInt32-.Lbase               # FFI390_RET_INT32
        .byte   .LretInt64-.Lbase               # FFI390_RET_INT64

.LFE1: 
.ffi_call_SYSV_end:
        .size    ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV


        .globl  ffi_closure_SYSV
        .type   ffi_closure_SYSV,%function
ffi_closure_SYSV:
.LFB2:
        stm     %r12,%r15,48(%r15)              # Save registers
.LCFI10:
        basr    %r13,0                          # Set up base register
.Lcbase:
        stm     %r2,%r6,8(%r15)                 # Save arguments
        std     %f0,64(%r15)
        std     %f2,72(%r15)
        lr      %r1,%r15                        # Set up stack frame
        ahi     %r15,-96
.LCFI11:
        l       %r12,.Lchelper-.Lcbase(%r13)    # Get helper function
        lr      %r2,%r0                         # Closure
        la      %r3,8(%r1)                      # GPRs
        la      %r4,64(%r1)                     # FPRs
        la      %r5,96(%r1)                     # Overflow
        st      %r1,0(%r15)                     # Set up back chain

        bas     %r14,0(%r12,%r13)               # Call helper

        l       %r4,96+56(%r15)
        ld      %f0,96+64(%r15)                 # Load return registers
        lm      %r2,%r3,96+8(%r15)
        lm      %r12,%r15,96+48(%r15)
        br      %r4

        .align 4
.Lchelper:
        .long   ffi_closure_helper_SYSV-.Lcbase

.LFE2: 

.ffi_closure_SYSV_end:
        .size    ffi_closure_SYSV,.ffi_closure_SYSV_end-ffi_closure_SYSV


        .section        .eh_frame,EH_FRAME_FLAGS,@progbits
.Lframe1:
        .4byte  .LECIE1-.LSCIE1 # Length of Common Information Entry
.LSCIE1:
        .4byte  0x0     # CIE Identifier Tag
        .byte   0x1     # CIE Version
        .ascii "zR\0"   # CIE Augmentation
        .uleb128 0x1    # CIE Code Alignment Factor
        .sleb128 -4     # CIE Data Alignment Factor
        .byte   0xe     # CIE RA Column
        .uleb128 0x1    # Augmentation size
        .byte   0x1b    # FDE Encoding (pcrel sdata4)
        .byte   0xc     # DW_CFA_def_cfa
        .uleb128 0xf
        .uleb128 0x60
        .align  4
.LECIE1:
.LSFDE1:
        .4byte  .LEFDE1-.LASFDE1        # FDE Length
.LASFDE1:
        .4byte  .LASFDE1-.Lframe1       # FDE CIE offset
        .4byte  .LFB1-. # FDE initial location
        .4byte  .LFE1-.LFB1     # FDE address range
        .uleb128 0x0    # Augmentation size
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI0-.LFB1
        .byte   0x8f    # DW_CFA_offset, column 0xf
        .uleb128 0x9
        .byte   0x8e    # DW_CFA_offset, column 0xe
        .uleb128 0xa
        .byte   0x8d    # DW_CFA_offset, column 0xd
        .uleb128 0xb
        .byte   0x8c    # DW_CFA_offset, column 0xc
        .uleb128 0xc
        .byte   0x8b    # DW_CFA_offset, column 0xb
        .uleb128 0xd
        .byte   0x8a    # DW_CFA_offset, column 0xa
        .uleb128 0xe
        .byte   0x89    # DW_CFA_offset, column 0x9
        .uleb128 0xf
        .byte   0x88    # DW_CFA_offset, column 0x8
        .uleb128 0x10
        .byte   0x87    # DW_CFA_offset, column 0x7
        .uleb128 0x11
        .byte   0x86    # DW_CFA_offset, column 0x6
        .uleb128 0x12
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI1-.LCFI0
        .byte   0xd     # DW_CFA_def_cfa_register
        .uleb128 0xb
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI2-.LCFI1
        .byte   0xe     # DW_CFA_def_cfa_offset
        .uleb128 0x90
        .align  4
.LEFDE1:
.LSFDE2:
        .4byte  .LEFDE2-.LASFDE2        # FDE Length
.LASFDE2:
        .4byte  .LASFDE2-.Lframe1       # FDE CIE offset
        .4byte  .LFB2-. # FDE initial location
        .4byte  .LFE2-.LFB2     # FDE address range
        .uleb128 0x0    # Augmentation size
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI10-.LFB2
        .byte   0x8f    # DW_CFA_offset, column 0xf
        .uleb128 0x9
        .byte   0x8e    # DW_CFA_offset, column 0xe
        .uleb128 0xa
        .byte   0x8d    # DW_CFA_offset, column 0xd
        .uleb128 0xb
        .byte   0x8c    # DW_CFA_offset, column 0xc
        .uleb128 0xc
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI11-.LCFI10
        .byte   0xe     # DW_CFA_def_cfa_offset
        .uleb128 0xc0
        .align  4
.LEFDE2:

#else
 
.text
 
        # r2:   cif->bytes
        # r3:   &ecif
        # r4:   ffi_prep_args
        # r5:   ret_type
        # r6:   ecif.rvalue
        # ov:   fn 
 
        # This assumes we are using gas.
        .globl  ffi_call_SYSV
        .type   ffi_call_SYSV,%function
ffi_call_SYSV:
.LFB1:
        stmg    %r6,%r15,48(%r15)               # Save registers
.LCFI0:
        larl    %r13,.Lbase                     # Set up base register
        lgr     %r11,%r15                       # Set up frame pointer
.LCFI1:
        sgr     %r15,%r2
        aghi    %r15,-160-80                    # Allocate stack
        lgr     %r8,%r6                         # Save ecif.rvalue
        llgc    %r9,.Ltable-.Lbase(%r13,%r5)    # Load epilog address
        lg      %r7,160(%r11)                   # Load function address
        stg     %r11,0(%r15)                    # Set up back chain
        aghi    %r11,-80                        # Register save area
.LCFI2:

        la      %r2,160(%r15)                   # Save area
                                                # r3 already holds &ecif
        basr    %r14,%r4                        # Call ffi_prep_args

        lmg     %r2,%r6,0(%r11)                 # Load arguments
        ld      %f0,48(%r11)
        ld      %f2,56(%r11)
        ld      %f4,64(%r11)
        ld      %f6,72(%r11)
        la      %r14,0(%r13,%r9)                # Set return address
        br      %r7                             # ... and call function

.Lbase:
.LretNone:                                      # Return void
        lg      %r4,80+112(%r11)
        lmg     %r6,%r15,80+48(%r11)
        br      %r4

.LretFloat:
        lg      %r4,80+112(%r11)
        ste     %f0,0(%r8)                      # Return float
        lmg     %r6,%r15,80+48(%r11)
        br      %r4
 
.LretDouble:
        lg      %r4,80+112(%r11)
        std     %f0,0(%r8)                      # Return double
        lmg     %r6,%r15,80+48(%r11)
        br      %r4

.LretInt32:
        lg      %r4,80+112(%r11)
        st      %r2,0(%r8)                      # Return int
        lmg     %r6,%r15,80+48(%r11)
        br      %r4
 
.LretInt64:
        lg      %r4,80+112(%r11)
        stg     %r2,0(%r8)                      # Return long
        lmg     %r6,%r15,80+48(%r11)
        br      %r4
 
.Ltable:
        .byte   .LretNone-.Lbase                # FFI390_RET_VOID
        .byte   .LretNone-.Lbase                # FFI390_RET_STRUCT
        .byte   .LretFloat-.Lbase               # FFI390_RET_FLOAT
        .byte   .LretDouble-.Lbase              # FFI390_RET_DOUBLE
        .byte   .LretInt32-.Lbase               # FFI390_RET_INT32
        .byte   .LretInt64-.Lbase               # FFI390_RET_INT64

.LFE1: 
.ffi_call_SYSV_end:
        .size    ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV


        .globl  ffi_closure_SYSV
        .type   ffi_closure_SYSV,%function
ffi_closure_SYSV:
.LFB2:
        stmg    %r14,%r15,112(%r15)             # Save registers
.LCFI10:
        stmg    %r2,%r6,16(%r15)                # Save arguments
        std     %f0,128(%r15)
        std     %f2,136(%r15)
        std     %f4,144(%r15)
        std     %f6,152(%r15)
        lgr     %r1,%r15                        # Set up stack frame
        aghi    %r15,-160
.LCFI11:
        lgr     %r2,%r0                         # Closure
        la      %r3,16(%r1)                     # GPRs
        la      %r4,128(%r1)                    # FPRs
        la      %r5,160(%r1)                    # Overflow
        stg     %r1,0(%r15)                     # Set up back chain

        brasl   %r14,ffi_closure_helper_SYSV    # Call helper

        lg      %r14,160+112(%r15)
        ld      %f0,160+128(%r15)               # Load return registers
        lg      %r2,160+16(%r15)
        la      %r15,160(%r15)
        br      %r14
.LFE2: 

.ffi_closure_SYSV_end:
        .size    ffi_closure_SYSV,.ffi_closure_SYSV_end-ffi_closure_SYSV



        .section        .eh_frame,EH_FRAME_FLAGS,@progbits
.Lframe1:
        .4byte  .LECIE1-.LSCIE1 # Length of Common Information Entry
.LSCIE1:
        .4byte  0x0     # CIE Identifier Tag
        .byte   0x1     # CIE Version
        .ascii "zR\0"   # CIE Augmentation
        .uleb128 0x1    # CIE Code Alignment Factor
        .sleb128 -8     # CIE Data Alignment Factor
        .byte   0xe     # CIE RA Column
        .uleb128 0x1    # Augmentation size
        .byte   0x1b    # FDE Encoding (pcrel sdata4)
        .byte   0xc     # DW_CFA_def_cfa
        .uleb128 0xf
        .uleb128 0xa0
        .align  8
.LECIE1:
.LSFDE1:
        .4byte  .LEFDE1-.LASFDE1        # FDE Length
.LASFDE1:
        .4byte  .LASFDE1-.Lframe1       # FDE CIE offset
        .4byte  .LFB1-. # FDE initial location
        .4byte  .LFE1-.LFB1     # FDE address range
        .uleb128 0x0    # Augmentation size
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI0-.LFB1
        .byte   0x8f    # DW_CFA_offset, column 0xf
        .uleb128 0x5
        .byte   0x8e    # DW_CFA_offset, column 0xe
        .uleb128 0x6
        .byte   0x8d    # DW_CFA_offset, column 0xd
        .uleb128 0x7
        .byte   0x8c    # DW_CFA_offset, column 0xc
        .uleb128 0x8
        .byte   0x8b    # DW_CFA_offset, column 0xb
        .uleb128 0x9
        .byte   0x8a    # DW_CFA_offset, column 0xa
        .uleb128 0xa
        .byte   0x89    # DW_CFA_offset, column 0x9
        .uleb128 0xb
        .byte   0x88    # DW_CFA_offset, column 0x8
        .uleb128 0xc
        .byte   0x87    # DW_CFA_offset, column 0x7
        .uleb128 0xd
        .byte   0x86    # DW_CFA_offset, column 0x6
        .uleb128 0xe
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI1-.LCFI0
        .byte   0xd     # DW_CFA_def_cfa_register
        .uleb128 0xb
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI2-.LCFI1
        .byte   0xe     # DW_CFA_def_cfa_offset
        .uleb128 0xf0
        .align  8
.LEFDE1:
.LSFDE2:
        .4byte  .LEFDE2-.LASFDE2        # FDE Length
.LASFDE2:
        .4byte  .LASFDE2-.Lframe1       # FDE CIE offset
        .4byte  .LFB2-. # FDE initial location
        .4byte  .LFE2-.LFB2     # FDE address range
        .uleb128 0x0    # Augmentation size
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI10-.LFB2
        .byte   0x8f    # DW_CFA_offset, column 0xf
        .uleb128 0x5
        .byte   0x8e    # DW_CFA_offset, column 0xe
        .uleb128 0x6
        .byte   0x4     # DW_CFA_advance_loc4
        .4byte  .LCFI11-.LCFI10
        .byte   0xe     # DW_CFA_def_cfa_offset
        .uleb128 0x140
        .align  8
.LEFDE2:

#endif

#if defined __ELF__ && defined __linux__
        .section        .note.GNU-stack,"",@progbits
#endif

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