/* ----------------------------------------------------------------------- sysv.S - Copyright (c) 2000 Software AG 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 CYGNUS SOLUTIONS 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