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jeremybenn |
/* -----------------------------------------------------------------------
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linux.S - (c) 2003-2004 Randolph Chung
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(c) 2008 Red Hat, Inc.
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HPPA Foreign Function Interface
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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``Software''), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL RENESAS TECHNOLOGY BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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----------------------------------------------------------------------- */
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#define LIBFFI_ASM
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#include
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#include
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.text
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.level 1.1
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.align 4
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/* void ffi_call_pa32(void (*)(char *, extended_cif *),
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extended_cif *ecif,
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unsigned bytes,
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unsigned flags,
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unsigned *rvalue,
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void (*fn)(void));
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*/
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.export ffi_call_pa32,code
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.import ffi_prep_args_pa32,code
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.type ffi_call_pa32, @function
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.LFB1:
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ffi_call_pa32:
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.proc
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.callinfo FRAME=64,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=4
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.entry
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stw %rp, -20(%sp)
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copy %r3, %r1
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.LCFI11:
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copy %sp, %r3
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.LCFI12:
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/* Setup the stack for calling prep_args...
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We want the stack to look like this:
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[ Previous stack ] <- %r3
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[ 64-bytes register save area ] <- %r4
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[ Stack space for actual call, passed as ] <- %arg0
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[ arg0 to ffi_prep_args_pa32 ]
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[ Stack for calling prep_args ] <- %sp
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*/
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stwm %r1, 64(%sp)
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stw %r4, 12(%r3)
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.LCFI13:
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copy %sp, %r4
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addl %arg2, %r4, %arg0 /* arg stack */
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stw %arg3, -48(%r3) /* save flags; we need it later */
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/* Call prep_args:
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%arg0(stack) -- set up above
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%arg1(ecif) -- same as incoming param
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%arg2(bytes) -- same as incoming param */
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bl ffi_prep_args_pa32,%r2
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ldo 64(%arg0), %sp
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ldo -64(%sp), %sp
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/* now %sp should point where %arg0 was pointing. */
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/* Load the arguments that should be passed in registers
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The fp args were loaded by the prep_args function. */
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ldw -36(%sp), %arg0
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ldw -40(%sp), %arg1
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ldw -44(%sp), %arg2
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ldw -48(%sp), %arg3
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/* in case the function is going to return a structure
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we need to give it a place to put the result. */
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ldw -52(%r3), %ret0 /* %ret0 <- rvalue */
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ldw -56(%r3), %r22 /* %r22 <- function to call */
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bl $$dyncall, %r31 /* Call the user function */
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copy %r31, %rp
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/* Prepare to store the result; we need to recover flags and rvalue. */
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ldw -48(%r3), %r21 /* r21 <- flags */
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ldw -52(%r3), %r20 /* r20 <- rvalue */
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/* Store the result according to the return type. */
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.Lcheckint:
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comib,<>,n FFI_TYPE_INT, %r21, .Lcheckint8
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b .Ldone
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stw %ret0, 0(%r20)
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.Lcheckint8:
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comib,<>,n FFI_TYPE_UINT8, %r21, .Lcheckint16
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b .Ldone
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stb %ret0, 0(%r20)
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.Lcheckint16:
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comib,<>,n FFI_TYPE_UINT16, %r21, .Lcheckdbl
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b .Ldone
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sth %ret0, 0(%r20)
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.Lcheckdbl:
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comib,<>,n FFI_TYPE_DOUBLE, %r21, .Lcheckfloat
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b .Ldone
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fstd %fr4,0(%r20)
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.Lcheckfloat:
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comib,<>,n FFI_TYPE_FLOAT, %r21, .Lcheckll
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b .Ldone
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fstw %fr4L,0(%r20)
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.Lcheckll:
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comib,<>,n FFI_TYPE_UINT64, %r21, .Lchecksmst2
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stw %ret0, 0(%r20)
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b .Ldone
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stw %ret1, 4(%r20)
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.Lchecksmst2:
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comib,<>,n FFI_TYPE_SMALL_STRUCT2, %r21, .Lchecksmst3
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/* 2-byte structs are returned in ret0 as ????xxyy. */
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extru %ret0, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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b .Ldone
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stb %ret0, 0(%r20)
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.Lchecksmst3:
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comib,<>,n FFI_TYPE_SMALL_STRUCT3, %r21, .Lchecksmst4
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/* 3-byte structs are returned in ret0 as ??xxyyzz. */
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extru %ret0, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret0, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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b .Ldone
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stb %ret0, 0(%r20)
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.Lchecksmst4:
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comib,<>,n FFI_TYPE_SMALL_STRUCT4, %r21, .Lchecksmst5
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/* 4-byte structs are returned in ret0 as wwxxyyzz. */
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extru %ret0, 7, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret0, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret0, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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b .Ldone
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stb %ret0, 0(%r20)
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.Lchecksmst5:
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comib,<>,n FFI_TYPE_SMALL_STRUCT5, %r21, .Lchecksmst6
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/* 5 byte values are returned right justified:
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ret0 ret1
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5: ??????aa bbccddee */
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stbs,ma %ret0, 1(%r20)
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extru %ret1, 7, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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b .Ldone
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stb %ret1, 0(%r20)
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.Lchecksmst6:
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comib,<>,n FFI_TYPE_SMALL_STRUCT6, %r21, .Lchecksmst7
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/* 6 byte values are returned right justified:
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ret0 ret1
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6: ????aabb ccddeeff */
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extru %ret0, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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stbs,ma %ret0, 1(%r20)
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extru %ret1, 7, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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b .Ldone
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stb %ret1, 0(%r20)
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.Lchecksmst7:
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comib,<>,n FFI_TYPE_SMALL_STRUCT7, %r21, .Lchecksmst8
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/* 7 byte values are returned right justified:
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ret0 ret1
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7: ??aabbcc ddeeffgg */
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extru %ret0, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret0, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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stbs,ma %ret0, 1(%r20)
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extru %ret1, 7, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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b .Ldone
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stb %ret1, 0(%r20)
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.Lchecksmst8:
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comib,<>,n FFI_TYPE_SMALL_STRUCT8, %r21, .Ldone
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/* 8 byte values are returned right justified:
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ret0 ret1
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8: aabbccdd eeffgghh */
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extru %ret0, 7, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret0, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret0, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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stbs,ma %ret0, 1(%r20)
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extru %ret1, 7, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 15, 8, %r22
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stbs,ma %r22, 1(%r20)
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extru %ret1, 23, 8, %r22
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stbs,ma %r22, 1(%r20)
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stb %ret1, 0(%r20)
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.Ldone:
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/* all done, return */
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copy %r4, %sp /* pop arg stack */
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ldw 12(%r3), %r4
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ldwm -64(%sp), %r3 /* .. and pop stack */
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ldw -20(%sp), %rp
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| 248 |
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bv %r0(%rp)
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nop
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.exit
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.procend
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.LFE1:
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| 253 |
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| 254 |
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/* void ffi_closure_pa32(void);
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| 255 |
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Called with closure argument in %r21 */
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| 256 |
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.export ffi_closure_pa32,code
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| 257 |
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.import ffi_closure_inner_pa32,code
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| 258 |
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| 259 |
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.type ffi_closure_pa32, @function
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| 260 |
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.LFB2:
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| 261 |
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ffi_closure_pa32:
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| 262 |
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.proc
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| 263 |
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.callinfo FRAME=64,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=3
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| 264 |
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.entry
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| 265 |
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| 266 |
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stw %rp, -20(%sp)
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| 267 |
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.LCFI20:
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| 268 |
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copy %r3, %r1
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| 269 |
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.LCFI21:
|
| 270 |
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copy %sp, %r3
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| 271 |
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.LCFI22:
|
| 272 |
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stwm %r1, 64(%sp)
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| 273 |
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| 274 |
|
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/* Put arguments onto the stack and call ffi_closure_inner. */
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| 275 |
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stw %arg0, -36(%r3)
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| 276 |
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stw %arg1, -40(%r3)
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| 277 |
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stw %arg2, -44(%r3)
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| 278 |
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stw %arg3, -48(%r3)
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| 279 |
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| 280 |
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copy %r21, %arg0
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| 281 |
|
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bl ffi_closure_inner_pa32, %r2
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| 282 |
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copy %r3, %arg1
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| 283 |
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| 284 |
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ldwm -64(%sp), %r3
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| 285 |
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ldw -20(%sp), %rp
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| 286 |
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ldw -36(%sp), %ret0
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| 287 |
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bv %r0(%r2)
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| 288 |
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ldw -40(%sp), %ret1
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| 289 |
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| 290 |
|
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.exit
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| 291 |
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.procend
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| 292 |
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.LFE2:
|
| 293 |
|
|
|
| 294 |
|
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.section ".eh_frame",EH_FRAME_FLAGS,@progbits
|
| 295 |
|
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.Lframe1:
|
| 296 |
|
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.word .LECIE1-.LSCIE1 ;# Length of Common Information Entry
|
| 297 |
|
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.LSCIE1:
|
| 298 |
|
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.word 0x0 ;# CIE Identifier Tag
|
| 299 |
|
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.byte 0x1 ;# CIE Version
|
| 300 |
|
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.ascii "\0" ;# CIE Augmentation
|
| 301 |
|
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.uleb128 0x1 ;# CIE Code Alignment Factor
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| 302 |
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.sleb128 4 ;# CIE Data Alignment Factor
|
| 303 |
|
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.byte 0x2 ;# CIE RA Column
|
| 304 |
|
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.byte 0xc ;# DW_CFA_def_cfa
|
| 305 |
|
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.uleb128 0x1e
|
| 306 |
|
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.uleb128 0x0
|
| 307 |
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.align 4
|
| 308 |
|
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.LECIE1:
|
| 309 |
|
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.LSFDE1:
|
| 310 |
|
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.word .LEFDE1-.LASFDE1 ;# FDE Length
|
| 311 |
|
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.LASFDE1:
|
| 312 |
|
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.word .LASFDE1-.Lframe1 ;# FDE CIE offset
|
| 313 |
|
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.word .LFB1 ;# FDE initial location
|
| 314 |
|
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.word .LFE1-.LFB1 ;# FDE address range
|
| 315 |
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|
| 316 |
|
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.byte 0x4 ;# DW_CFA_advance_loc4
|
| 317 |
|
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.word .LCFI11-.LFB1
|
| 318 |
|
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.byte 0x83 ;# DW_CFA_offset, column 0x3
|
| 319 |
|
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.uleb128 0x0
|
| 320 |
|
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.byte 0x11 ;# DW_CFA_offset_extended_sf; save r2 at [r30-20]
|
| 321 |
|
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.uleb128 0x2
|
| 322 |
|
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.sleb128 -5
|
| 323 |
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|
| 324 |
|
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.byte 0x4 ;# DW_CFA_advance_loc4
|
| 325 |
|
|
.word .LCFI12-.LCFI11
|
| 326 |
|
|
.byte 0xd ;# DW_CFA_def_cfa_register = r3
|
| 327 |
|
|
.uleb128 0x3
|
| 328 |
|
|
|
| 329 |
|
|
.byte 0x4 ;# DW_CFA_advance_loc4
|
| 330 |
|
|
.word .LCFI13-.LCFI12
|
| 331 |
|
|
.byte 0x84 ;# DW_CFA_offset, column 0x4
|
| 332 |
|
|
.uleb128 0x3
|
| 333 |
|
|
|
| 334 |
|
|
.align 4
|
| 335 |
|
|
.LEFDE1:
|
| 336 |
|
|
|
| 337 |
|
|
.LSFDE2:
|
| 338 |
|
|
.word .LEFDE2-.LASFDE2 ;# FDE Length
|
| 339 |
|
|
.LASFDE2:
|
| 340 |
|
|
.word .LASFDE2-.Lframe1 ;# FDE CIE offset
|
| 341 |
|
|
.word .LFB2 ;# FDE initial location
|
| 342 |
|
|
.word .LFE2-.LFB2 ;# FDE address range
|
| 343 |
|
|
.byte 0x4 ;# DW_CFA_advance_loc4
|
| 344 |
|
|
.word .LCFI21-.LFB2
|
| 345 |
|
|
.byte 0x83 ;# DW_CFA_offset, column 0x3
|
| 346 |
|
|
.uleb128 0x0
|
| 347 |
|
|
.byte 0x11 ;# DW_CFA_offset_extended_sf
|
| 348 |
|
|
.uleb128 0x2
|
| 349 |
|
|
.sleb128 -5
|
| 350 |
|
|
|
| 351 |
|
|
.byte 0x4 ;# DW_CFA_advance_loc4
|
| 352 |
|
|
.word .LCFI22-.LCFI21
|
| 353 |
|
|
.byte 0xd ;# DW_CFA_def_cfa_register = r3
|
| 354 |
|
|
.uleb128 0x3
|
| 355 |
|
|
|
| 356 |
|
|
.align 4
|
| 357 |
|
|
.LEFDE2:
|
