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-rw-r--r--libffi/src/pa/hpux32.S368
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diff --git a/libffi/src/pa/hpux32.S b/libffi/src/pa/hpux32.S
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+/* -----------------------------------------------------------------------
+ hpux32.S - Copyright (c) 2006 Free Software Foundation, Inc.
+ (c) 2008 Red Hat, Inc.
+ based on src/pa/linux.S
+
+ HP-UX PA 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 AUTHOR 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>
+
+ .LEVEL 1.1
+ .SPACE $PRIVATE$
+ .IMPORT $global$,DATA
+ .IMPORT $$dyncall,MILLICODE
+ .SUBSPA $DATA$
+ .align 4
+
+ /* void ffi_call_pa32(void (*)(char *, extended_cif *),
+ extended_cif *ecif,
+ unsigned bytes,
+ unsigned flags,
+ unsigned *rvalue,
+ void (*fn)(void));
+ */
+
+ .export ffi_call_pa32,ENTRY,PRIV_LEV=3
+ .import ffi_prep_args_pa32,CODE
+
+ .SPACE $TEXT$
+ .SUBSPA $CODE$
+ .align 4
+
+L$FB1
+ffi_call_pa32
+ .proc
+ .callinfo FRAME=64,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=4
+ .entry
+ stw %rp, -20(%sp)
+ copy %r3, %r1
+L$CFI11
+ copy %sp, %r3
+L$CFI12
+
+ /* Setup the stack for calling prep_args...
+ We want the stack to look like this:
+
+ [ Previous stack ] <- %r3
+
+ [ 64-bytes register save area ] <- %r4
+
+ [ Stack space for actual call, passed as ] <- %arg0
+ [ arg0 to ffi_prep_args_pa32 ]
+
+ [ Stack for calling prep_args ] <- %sp
+ */
+
+ stwm %r1, 64(%sp)
+ stw %r4, 12(%r3)
+L$CFI13
+ copy %sp, %r4
+
+ addl %arg2, %r4, %arg0 ; arg stack
+ stw %arg3, -48(%r3) ; save flags we need it later
+
+ /* Call prep_args:
+ %arg0(stack) -- set up above
+ %arg1(ecif) -- same as incoming param
+ %arg2(bytes) -- same as incoming param */
+ bl ffi_prep_args_pa32,%r2
+ ldo 64(%arg0), %sp
+ ldo -64(%sp), %sp
+
+ /* now %sp should point where %arg0 was pointing. */
+
+ /* Load the arguments that should be passed in registers
+ The fp args are loaded by the prep_args function. */
+ ldw -36(%sp), %arg0
+ ldw -40(%sp), %arg1
+ ldw -44(%sp), %arg2
+ ldw -48(%sp), %arg3
+
+ /* in case the function is going to return a structure
+ we need to give it a place to put the result. */
+ ldw -52(%r3), %ret0 ; %ret0 <- rvalue
+ ldw -56(%r3), %r22 ; %r22 <- function to call
+ bl $$dyncall, %r31 ; Call the user function
+ copy %r31, %rp
+
+ /* Prepare to store the result; we need to recover flags and rvalue. */
+ ldw -48(%r3), %r21 ; r21 <- flags
+ ldw -52(%r3), %r20 ; r20 <- rvalue
+
+ /* Store the result according to the return type. The most
+ likely types should come first. */
+
+L$checkint
+ comib,<>,n FFI_TYPE_INT, %r21, L$checkint8
+ b L$done
+ stw %ret0, 0(%r20)
+
+L$checkint8
+ comib,<>,n FFI_TYPE_UINT8, %r21, L$checkint16
+ b L$done
+ stb %ret0, 0(%r20)
+
+L$checkint16
+ comib,<>,n FFI_TYPE_UINT16, %r21, L$checkdbl
+ b L$done
+ sth %ret0, 0(%r20)
+
+L$checkdbl
+ comib,<>,n FFI_TYPE_DOUBLE, %r21, L$checkfloat
+ b L$done
+ fstd %fr4,0(%r20)
+
+L$checkfloat
+ comib,<>,n FFI_TYPE_FLOAT, %r21, L$checkll
+ b L$done
+ fstw %fr4L,0(%r20)
+
+L$checkll
+ comib,<>,n FFI_TYPE_UINT64, %r21, L$checksmst2
+ stw %ret0, 0(%r20)
+ b L$done
+ stw %ret1, 4(%r20)
+
+L$checksmst2
+ comib,<>,n FFI_TYPE_SMALL_STRUCT2, %r21, L$checksmst3
+ /* 2-byte structs are returned in ret0 as ????xxyy. */
+ extru %ret0, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ b L$done
+ stb %ret0, 0(%r20)
+
+L$checksmst3
+ comib,<>,n FFI_TYPE_SMALL_STRUCT3, %r21, L$checksmst4
+ /* 3-byte structs are returned in ret0 as ??xxyyzz. */
+ extru %ret0, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret0, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ b L$done
+ stb %ret0, 0(%r20)
+
+L$checksmst4
+ comib,<>,n FFI_TYPE_SMALL_STRUCT4, %r21, L$checksmst5
+ /* 4-byte structs are returned in ret0 as wwxxyyzz. */
+ extru %ret0, 7, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret0, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret0, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ b L$done
+ stb %ret0, 0(%r20)
+
+L$checksmst5
+ comib,<>,n FFI_TYPE_SMALL_STRUCT5, %r21, L$checksmst6
+ /* 5 byte values are returned right justified:
+ ret0 ret1
+ 5: ??????aa bbccddee */
+ stbs,ma %ret0, 1(%r20)
+ extru %ret1, 7, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ b L$done
+ stb %ret1, 0(%r20)
+
+L$checksmst6
+ comib,<>,n FFI_TYPE_SMALL_STRUCT6, %r21, L$checksmst7
+ /* 6 byte values are returned right justified:
+ ret0 ret1
+ 6: ????aabb ccddeeff */
+ extru %ret0, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ stbs,ma %ret0, 1(%r20)
+ extru %ret1, 7, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ b L$done
+ stb %ret1, 0(%r20)
+
+L$checksmst7
+ comib,<>,n FFI_TYPE_SMALL_STRUCT7, %r21, L$checksmst8
+ /* 7 byte values are returned right justified:
+ ret0 ret1
+ 7: ??aabbcc ddeeffgg */
+ extru %ret0, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret0, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ stbs,ma %ret0, 1(%r20)
+ extru %ret1, 7, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ b L$done
+ stb %ret1, 0(%r20)
+
+L$checksmst8
+ comib,<>,n FFI_TYPE_SMALL_STRUCT8, %r21, L$done
+ /* 8 byte values are returned right justified:
+ ret0 ret1
+ 8: aabbccdd eeffgghh */
+ extru %ret0, 7, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret0, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret0, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ stbs,ma %ret0, 1(%r20)
+ extru %ret1, 7, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 15, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ extru %ret1, 23, 8, %r22
+ stbs,ma %r22, 1(%r20)
+ stb %ret1, 0(%r20)
+
+L$done
+ /* all done, return */
+ copy %r4, %sp ; pop arg stack
+ ldw 12(%r3), %r4
+ ldwm -64(%sp), %r3 ; .. and pop stack
+ ldw -20(%sp), %rp
+ bv %r0(%rp)
+ nop
+ .exit
+ .procend
+L$FE1
+
+ /* void ffi_closure_pa32(void);
+ Called with closure argument in %r21 */
+
+ .SPACE $TEXT$
+ .SUBSPA $CODE$
+ .export ffi_closure_pa32,ENTRY,PRIV_LEV=3,RTNVAL=GR
+ .import ffi_closure_inner_pa32,CODE
+ .align 4
+L$FB2
+ffi_closure_pa32
+ .proc
+ .callinfo FRAME=64,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=3
+ .entry
+
+ stw %rp, -20(%sp)
+ copy %r3, %r1
+L$CFI21
+ copy %sp, %r3
+L$CFI22
+ stwm %r1, 64(%sp)
+
+ /* Put arguments onto the stack and call ffi_closure_inner. */
+ stw %arg0, -36(%r3)
+ stw %arg1, -40(%r3)
+ stw %arg2, -44(%r3)
+ stw %arg3, -48(%r3)
+
+ copy %r21, %arg0
+ bl ffi_closure_inner_pa32, %r2
+ copy %r3, %arg1
+ ldwm -64(%sp), %r3
+ ldw -20(%sp), %rp
+ ldw -36(%sp), %ret0
+ bv %r0(%rp)
+ ldw -40(%sp), %ret1
+ .exit
+ .procend
+L$FE2:
+
+ .SPACE $PRIVATE$
+ .SUBSPA $DATA$
+
+ .align 4
+ .EXPORT _GLOBAL__F_ffi_call_pa32,DATA
+_GLOBAL__F_ffi_call_pa32
+L$frame1:
+ .word L$ECIE1-L$SCIE1 ;# Length of Common Information Entry
+L$SCIE1:
+ .word 0x0 ;# CIE Identifier Tag
+ .byte 0x1 ;# CIE Version
+ .ascii "\0" ;# CIE Augmentation
+ .uleb128 0x1 ;# CIE Code Alignment Factor
+ .sleb128 4 ;# CIE Data Alignment Factor
+ .byte 0x2 ;# CIE RA Column
+ .byte 0xc ;# DW_CFA_def_cfa
+ .uleb128 0x1e
+ .uleb128 0x0
+ .align 4
+L$ECIE1:
+L$SFDE1:
+ .word L$EFDE1-L$ASFDE1 ;# FDE Length
+L$ASFDE1:
+ .word L$ASFDE1-L$frame1 ;# FDE CIE offset
+ .word L$FB1 ;# FDE initial location
+ .word L$FE1-L$FB1 ;# FDE address range
+
+ .byte 0x4 ;# DW_CFA_advance_loc4
+ .word L$CFI11-L$FB1
+ .byte 0x83 ;# DW_CFA_offset, column 0x3
+ .uleb128 0x0
+ .byte 0x11 ;# DW_CFA_offset_extended_sf; save r2 at [r30-20]
+ .uleb128 0x2
+ .sleb128 -5
+
+ .byte 0x4 ;# DW_CFA_advance_loc4
+ .word L$CFI12-L$CFI11
+ .byte 0xd ;# DW_CFA_def_cfa_register = r3
+ .uleb128 0x3
+
+ .byte 0x4 ;# DW_CFA_advance_loc4
+ .word L$CFI13-L$CFI12
+ .byte 0x84 ;# DW_CFA_offset, column 0x4
+ .uleb128 0x3
+
+ .align 4
+L$EFDE1:
+
+L$SFDE2:
+ .word L$EFDE2-L$ASFDE2 ;# FDE Length
+L$ASFDE2:
+ .word L$ASFDE2-L$frame1 ;# FDE CIE offset
+ .word L$FB2 ;# FDE initial location
+ .word L$FE2-L$FB2 ;# FDE address range
+ .byte 0x4 ;# DW_CFA_advance_loc4
+ .word L$CFI21-L$FB2
+ .byte 0x83 ;# DW_CFA_offset, column 0x3
+ .uleb128 0x0
+ .byte 0x11 ;# DW_CFA_offset_extended_sf
+ .uleb128 0x2
+ .sleb128 -5
+
+ .byte 0x4 ;# DW_CFA_advance_loc4
+ .word L$CFI22-L$CFI21
+ .byte 0xd ;# DW_CFA_def_cfa_register = r3
+ .uleb128 0x3
+
+ .align 4
+L$EFDE2:
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