kc3-lang/libffi/src/powerpc/linux64_closure.S

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  Commit

• Author : Sergei Trofimovich
  Date : 2022-06-02 18:43:53
  Hash : 000ecd01
  Message : powerpc64: fix build on gcc-12 (assembly requires AltiVec) (#719) Without the change build fails on powerpc64-gcc-12 as: src/powerpc/linux64_closure.S: Assembler messages: src/powerpc/linux64_closure.S:363: Error: unrecognized opcode: `lvx' It's a 90205f67 "rs6000: Fix bootstrap (libffi)" patch by Segher Boessenkool from gcc upstream repository. It's enough to get libffi build on powerpc64.

• src/powerpc/linux64_closure.S

• /* -----------------------------------------------------------------------
     sysv.h - Copyright (c) 2003 Jakub Jelinek <jakub@redhat.com>
  	    Copyright (c) 2008 Red Hat, Inc.
  
     PowerPC64 Assembly glue.
  
     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>
  
  	.file	"linux64_closure.S"
  
  	.machine altivec
  
  #ifdef POWERPC64
  	FFI_HIDDEN (ffi_closure_LINUX64)
  	.globl  ffi_closure_LINUX64
  	.text
  	.cfi_startproc
  # if _CALL_ELF == 2
  ffi_closure_LINUX64:
  #  ifndef __PCREL__
  	addis	%r2, %r12, .TOC.-ffi_closure_LINUX64@ha
  	addi	%r2, %r2, .TOC.-ffi_closure_LINUX64@l
  #  endif
  	.localentry ffi_closure_LINUX64, . - ffi_closure_LINUX64
  # else
  	.section        ".opd","aw"
  	.align  3
  ffi_closure_LINUX64:
  #  ifdef _CALL_LINUX
  	.quad   .L.ffi_closure_LINUX64,.TOC.@tocbase,0
  	.type   ffi_closure_LINUX64,@function
  	.text
  .L.ffi_closure_LINUX64:
  #  else
  	FFI_HIDDEN (.ffi_closure_LINUX64)
  	.globl  .ffi_closure_LINUX64
  	.quad   .ffi_closure_LINUX64,.TOC.@tocbase,0
  	.size   ffi_closure_LINUX64,24
  	.type   .ffi_closure_LINUX64,@function
  	.text
  .ffi_closure_LINUX64:
  #  endif
  # endif
  
  # if _CALL_ELF == 2
  #  ifdef __VEC__
  #   32 byte special reg save area + 64 byte parm save area
  #   + 128 byte retval area + 13*8 fpr save area + 12*16 vec save area + round to 16
  #   define STACKFRAME 528
  #  else
  #   32 byte special reg save area + 64 byte parm save area
  #   + 64 byte retval area + 13*8 fpr save area + round to 16
  #   define STACKFRAME 272
  #  endif
  #  define PARMSAVE 32
  #  define RETVAL PARMSAVE+64
  # else
  #  48 bytes special reg save area + 64 bytes parm save area
  #  + 16 bytes retval area + 13*8 bytes fpr save area + round to 16
  #  define STACKFRAME 240
  #  define PARMSAVE 48
  #  define RETVAL PARMSAVE+64
  # endif
  
  # if _CALL_ELF == 2
  	ld	%r12, FFI_TRAMPOLINE_SIZE(%r11)		# closure->cif
  	mflr	%r0
  	lwz	%r12, 28(%r12)				# cif->flags
  	mtcrf	0x40, %r12
  	addi	%r12, %r1, PARMSAVE
  	bt	7, 0f
  	# Our caller has not allocated a parameter save area.
  	# We need to allocate one here and use it to pass gprs to
  	# ffi_closure_helper_LINUX64.
  	addi	%r12, %r1, -STACKFRAME+PARMSAVE
  0:
  	# Save general regs into parm save area
  	std	%r3, 0(%r12)
  	std	%r4, 8(%r12)
  	std	%r5, 16(%r12)
  	std	%r6, 24(%r12)
  	std	%r7, 32(%r12)
  	std	%r8, 40(%r12)
  	std	%r9, 48(%r12)
  	std	%r10, 56(%r12)
  
  	# load up the pointer to the parm save area
  	mr	%r7, %r12
  # else
  	# copy r2 to r11 and load TOC into r2
  	mr	%r11, %r2
  	ld	%r2, 16(%r2)
  
  	mflr	%r0
  	# Save general regs into parm save area
  	# This is the parameter save area set up by our caller.
  	std	%r3, PARMSAVE+0(%r1)
  	std	%r4, PARMSAVE+8(%r1)
  	std	%r5, PARMSAVE+16(%r1)
  	std	%r6, PARMSAVE+24(%r1)
  	std	%r7, PARMSAVE+32(%r1)
  	std	%r8, PARMSAVE+40(%r1)
  	std	%r9, PARMSAVE+48(%r1)
  	std	%r10, PARMSAVE+56(%r1)
  
  	# load up the pointer to the parm save area
  	addi	%r7, %r1, PARMSAVE
  # endif
  	std	%r0, 16(%r1)
  
  	# closure->cif
  	ld	%r3, FFI_TRAMPOLINE_SIZE(%r11)
  	# closure->fun
  	ld	%r4, FFI_TRAMPOLINE_SIZE+8(%r11)
  	# closure->user_data
  	ld	%r5, FFI_TRAMPOLINE_SIZE+16(%r11)
  
  .Ldoclosure:
  	# next save fpr 1 to fpr 13
  	stfd	%f1, -104+(0*8)(%r1)
  	stfd	%f2, -104+(1*8)(%r1)
  	stfd	%f3, -104+(2*8)(%r1)
  	stfd	%f4, -104+(3*8)(%r1)
  	stfd	%f5, -104+(4*8)(%r1)
  	stfd	%f6, -104+(5*8)(%r1)
  	stfd	%f7, -104+(6*8)(%r1)
  	stfd	%f8, -104+(7*8)(%r1)
  	stfd	%f9, -104+(8*8)(%r1)
  	stfd	%f10, -104+(9*8)(%r1)
  	stfd	%f11, -104+(10*8)(%r1)
  	stfd	%f12, -104+(11*8)(%r1)
  	stfd	%f13, -104+(12*8)(%r1)
  
  	# load up the pointer to the saved fpr registers
  	addi	%r8, %r1, -104
  
  # ifdef __VEC__
  	# load up the pointer to the saved vector registers
  	# 8 bytes padding for 16-byte alignment at -112(%r1)
  	addi	%r9, %r8, -24
  	stvx	%v13, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v12, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v11, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v10, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v9, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v8, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v7, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v6, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v5, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v4, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v3, 0, %r9
  	addi	%r9, %r9, -16
  	stvx	%v2, 0, %r9
  # endif
  
  	# load up the pointer to the result storage
  	addi	%r6, %r1, -STACKFRAME+RETVAL
  
  	stdu	%r1, -STACKFRAME(%r1)
  	.cfi_def_cfa_offset STACKFRAME
  	.cfi_offset 65, 16
  
  	# make the call
  # if defined _CALL_LINUX || _CALL_ELF == 2
  #  ifdef __PCREL__
  	bl ffi_closure_helper_LINUX64@notoc
  .Lret:
  #  else
  	bl ffi_closure_helper_LINUX64
  .Lret:
  	nop
  #  endif
  # else
  	bl .ffi_closure_helper_LINUX64
  .Lret:
  	nop
  # endif
  
  	# now r3 contains the return type
  	# so use it to look up in a table
  	# so we know how to deal with each type
  
  	# look up the proper starting point in table
  	# by using return type as offset
  	ld %r0, STACKFRAME+16(%r1)
  	cmpldi %r3, FFI_V2_TYPE_SMALL_STRUCT
  	bge .Lsmall
  	mflr %r4		# move address of .Lret to r4
  	sldi %r3, %r3, 4	# now multiply return type by 16
  	addi %r4, %r4, .Lret_type0 - .Lret
  	add %r3, %r3, %r4	# add contents of table to table address
  	mtctr %r3
  	bctr			# jump to it
  
  # Each of the ret_typeX code fragments has to be exactly 16 bytes long
  # (4 instructions). For cache effectiveness we align to a 16 byte boundary
  # first.
  	.align 4
  
  .Lret_type0:
  # case FFI_TYPE_VOID
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  	nop
  # case FFI_TYPE_INT
  # ifdef __LITTLE_ENDIAN__
  	lwa %r3, RETVAL+0(%r1)
  # else
  	lwa %r3, RETVAL+4(%r1)
  # endif
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_FLOAT
  	lfs %f1, RETVAL+0(%r1)
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_DOUBLE
  	lfd %f1, RETVAL+0(%r1)
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_LONGDOUBLE
  	lfd %f1, RETVAL+0(%r1)
  	mtlr %r0
  	lfd %f2, RETVAL+8(%r1)
  	b .Lfinish
  # case FFI_TYPE_UINT8
  # ifdef __LITTLE_ENDIAN__
  	lbz %r3, RETVAL+0(%r1)
  # else
  	lbz %r3, RETVAL+7(%r1)
  # endif
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_SINT8
  # ifdef __LITTLE_ENDIAN__
  	lbz %r3, RETVAL+0(%r1)
  # else
  	lbz %r3, RETVAL+7(%r1)
  # endif
  	extsb %r3,%r3
  	mtlr %r0
  	b .Lfinish
  # case FFI_TYPE_UINT16
  # ifdef __LITTLE_ENDIAN__
  	lhz %r3, RETVAL+0(%r1)
  # else
  	lhz %r3, RETVAL+6(%r1)
  # endif
  	mtlr %r0
  .Lfinish:
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_SINT16
  # ifdef __LITTLE_ENDIAN__
  	lha %r3, RETVAL+0(%r1)
  # else
  	lha %r3, RETVAL+6(%r1)
  # endif
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_UINT32
  # ifdef __LITTLE_ENDIAN__
  	lwz %r3, RETVAL+0(%r1)
  # else
  	lwz %r3, RETVAL+4(%r1)
  # endif
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_SINT32
  # ifdef __LITTLE_ENDIAN__
  	lwa %r3, RETVAL+0(%r1)
  # else
  	lwa %r3, RETVAL+4(%r1)
  # endif
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_UINT64
  	ld %r3, RETVAL+0(%r1)
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_SINT64
  	ld %r3, RETVAL+0(%r1)
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_TYPE_STRUCT
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  	nop
  # case FFI_TYPE_POINTER
  	ld %r3, RETVAL+0(%r1)
  	mtlr %r0
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  # case FFI_V2_TYPE_VECTOR
  	addi %r3, %r1, RETVAL
  	lvx %v2, 0, %r3
  	mtlr %r0
  	b .Lfinish
  # case FFI_V2_TYPE_VECTOR_HOMOG
  	addi %r3, %r1, RETVAL
  	lvx %v2, 0, %r3
  	addi %r3, %r3, 16
  	b .Lmorevector
  # case FFI_V2_TYPE_FLOAT_HOMOG
  	lfs %f1, RETVAL+0(%r1)
  	lfs %f2, RETVAL+4(%r1)
  	lfs %f3, RETVAL+8(%r1)
  	b .Lmorefloat
  # case FFI_V2_TYPE_DOUBLE_HOMOG
  	lfd %f1, RETVAL+0(%r1)
  	lfd %f2, RETVAL+8(%r1)
  	lfd %f3, RETVAL+16(%r1)
  	lfd %f4, RETVAL+24(%r1)
  	mtlr %r0
  	lfd %f5, RETVAL+32(%r1)
  	lfd %f6, RETVAL+40(%r1)
  	lfd %f7, RETVAL+48(%r1)
  	lfd %f8, RETVAL+56(%r1)
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  .Lmorevector:
  	lvx %v3, 0, %r3
  	addi %r3, %r3, 16
  	lvx %v4, 0, %r3
  	addi %r3, %r3, 16
  	lvx %v5, 0, %r3
  	mtlr %r0
  	addi %r3, %r3, 16
  	lvx %v6, 0, %r3
  	addi %r3, %r3, 16
  	lvx %v7, 0, %r3
  	addi %r3, %r3, 16
  	lvx %v8, 0, %r3
  	addi %r3, %r3, 16
  	lvx %v9, 0, %r3
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  .Lmorefloat:
  	lfs %f4, RETVAL+12(%r1)
  	mtlr %r0
  	lfs %f5, RETVAL+16(%r1)
  	lfs %f6, RETVAL+20(%r1)
  	lfs %f7, RETVAL+24(%r1)
  	lfs %f8, RETVAL+28(%r1)
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  .Lsmall:
  # ifdef __LITTLE_ENDIAN__
  	ld %r3,RETVAL+0(%r1)
  	mtlr %r0
  	ld %r4,RETVAL+8(%r1)
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  # else
  	# A struct smaller than a dword is returned in the low bits of r3
  	# ie. right justified.  Larger structs are passed left justified
  	# in r3 and r4.  The return value area on the stack will have
  	# the structs as they are usually stored in memory.
  	cmpldi %r3, FFI_V2_TYPE_SMALL_STRUCT + 7 # size 8 bytes?
  	neg %r5, %r3
  	ld %r3,RETVAL+0(%r1)
  	blt .Lsmalldown
  	mtlr %r0
  	ld %r4,RETVAL+8(%r1)
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	blr
  	.cfi_def_cfa_offset STACKFRAME
  .Lsmalldown:
  	addi %r5, %r5, FFI_V2_TYPE_SMALL_STRUCT + 7
  	mtlr %r0
  	sldi %r5, %r5, 3
  	addi %r1, %r1, STACKFRAME
  	.cfi_def_cfa_offset 0
  	srd %r3, %r3, %r5
  	blr
  # endif
  
  	.cfi_endproc
  # if _CALL_ELF == 2
  	.size	ffi_closure_LINUX64,.-ffi_closure_LINUX64
  # else
  #  ifdef _CALL_LINUX
  	.size	ffi_closure_LINUX64,.-.L.ffi_closure_LINUX64
  #  else
  	.long	0
  	.byte	0,12,0,1,128,0,0,0
  	.size	.ffi_closure_LINUX64,.-.ffi_closure_LINUX64
  #  endif
  # endif
  
  
  	FFI_HIDDEN (ffi_go_closure_linux64)
  	.globl  ffi_go_closure_linux64
  	.text
  	.cfi_startproc
  # if _CALL_ELF == 2
  ffi_go_closure_linux64:
  #  ifndef __PCREL__
  	addis	%r2, %r12, .TOC.-ffi_go_closure_linux64@ha
  	addi	%r2, %r2, .TOC.-ffi_go_closure_linux64@l
  #  endif
  	.localentry ffi_go_closure_linux64, . - ffi_go_closure_linux64
  # else
  	.section        ".opd","aw"
  	.align  3
  ffi_go_closure_linux64:
  #  ifdef _CALL_LINUX
  	.quad   .L.ffi_go_closure_linux64,.TOC.@tocbase,0
  	.type   ffi_go_closure_linux64,@function
  	.text
  .L.ffi_go_closure_linux64:
  #  else
  	FFI_HIDDEN (.ffi_go_closure_linux64)
  	.globl  .ffi_go_closure_linux64
  	.quad   .ffi_go_closure_linux64,.TOC.@tocbase,0
  	.size   ffi_go_closure_linux64,24
  	.type   .ffi_go_closure_linux64,@function
  	.text
  .ffi_go_closure_linux64:
  #  endif
  # endif
  
  # if _CALL_ELF == 2
  	ld	%r12, 8(%r11)				# closure->cif
  	mflr	%r0
  	lwz	%r12, 28(%r12)				# cif->flags
  	mtcrf	0x40, %r12
  	addi	%r12, %r1, PARMSAVE
  	bt	7, 0f
  	# Our caller has not allocated a parameter save area.
  	# We need to allocate one here and use it to pass gprs to
  	# ffi_closure_helper_LINUX64.
  	addi	%r12, %r1, -STACKFRAME+PARMSAVE
  0:
  	# Save general regs into parm save area
  	std	%r3, 0(%r12)
  	std	%r4, 8(%r12)
  	std	%r5, 16(%r12)
  	std	%r6, 24(%r12)
  	std	%r7, 32(%r12)
  	std	%r8, 40(%r12)
  	std	%r9, 48(%r12)
  	std	%r10, 56(%r12)
  
  	# load up the pointer to the parm save area
  	mr	%r7, %r12
  # else
  	mflr	%r0
  	# Save general regs into parm save area
  	# This is the parameter save area set up by our caller.
  	std	%r3, PARMSAVE+0(%r1)
  	std	%r4, PARMSAVE+8(%r1)
  	std	%r5, PARMSAVE+16(%r1)
  	std	%r6, PARMSAVE+24(%r1)
  	std	%r7, PARMSAVE+32(%r1)
  	std	%r8, PARMSAVE+40(%r1)
  	std	%r9, PARMSAVE+48(%r1)
  	std	%r10, PARMSAVE+56(%r1)
  
  	# load up the pointer to the parm save area
  	addi	%r7, %r1, PARMSAVE
  # endif
  	std	%r0, 16(%r1)
  
  	# closure->cif
  	ld	%r3, 8(%r11)
  	# closure->fun
  	ld	%r4, 16(%r11)
  	# user_data
  	mr	%r5, %r11
  	b	.Ldoclosure
  
  	.cfi_endproc
  # if _CALL_ELF == 2
  	.size	ffi_go_closure_linux64,.-ffi_go_closure_linux64
  # else
  #  ifdef _CALL_LINUX
  	.size	ffi_go_closure_linux64,.-.L.ffi_go_closure_linux64
  #  else
  	.long	0
  	.byte	0,12,0,1,128,0,0,0
  	.size	.ffi_go_closure_linux64,.-.ffi_go_closure_linux64
  #  endif
  # endif
  #endif
  
  #if (defined __ELF__ && defined __linux__) || _CALL_ELF == 2
  	.section	.note.GNU-stack,"",@progbits
  #endif