ObjFW  Check-in [1fea22809b]

Overview
Comment:Fix forwarding on NetBSD/PowerPC
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 1fea22809b34bcbf4ffef32494f16c535fb7b3a2d12682d106b985a58d12960e
User & Date: js on 2020-07-08 00:03:40
Other Links: manifest | tags
Context
2020-07-09
00:16
.travis.yml: Remove devkitPro builds check-in: b9a4771366 user: js tags: trunk
2020-07-08
00:17
Merge trunk into branch "tagged-pointers" check-in: 3e57593e8d user: js tags: tagged-pointers
00:03
Fix forwarding on NetBSD/PowerPC check-in: 1fea22809b user: js tags: trunk
2020-07-06
19:10
Update PLATFORMS.md check-in: f87321ad31 user: js tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified PLATFORMS.md from [b932fb0b9a] to [90d4315b90].

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  * Runtimes: ObjFW
  * Notes: libnix and ixemul are both supported


NetBSD
------

  * OS Versions: 5.1-9.0
  * Architectures: ARM, ARM (big endian, BE8 mode), MIPS (O32), SPARC, SPARC64,
                   x86, x86_64
  * Compilers: Clang 3.0-3.2, GCC 4.1.3 & 4.5.3
  * Architectures: ARM, ARM (big endian, BE8 mode), MIPS (O32), PowerPC, SPARC,
                   SPARC64, x86, x86_64
  * Compilers: Clang 3.0-3.2, GCC 4.1.3 & 4.5.3 & 7.4.0
  * Runtimes: ObjFW


Nintendo 3DS
------------

  * OS Versions: 9.2.0-20E, 10.5.0-30E / Homebrew Channel 1.1.0
︙

Modified src/forwarding/forwarding-powerpc-elf.S from [02c7954cba] to [765ed4e505].

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.globl of_forward_stret

.section .text
of_forward:
	stwu	%r1, -112(%r1)
	mflr	%r0
	stw	%r0, 116(%r1)
	stw	%r30, 104(%r1)

	bl	0f
0:
	mflr	%r30
	addis	%r30, %r30, .Lbiased_got2-0b@ha
	addi	%r30, %r30, .Lbiased_got2-0b@l

	/* Save all arguments */
	stw	%r3, 8(%r1)
	stw	%r4, 12(%r1)
	stw	%r5, 16(%r1)
	stw	%r6, 20(%r1)
	stw	%r7, 24(%r1)
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	stfd	%f3, 56(%r1)
	stfd	%f4, 64(%r1)
	stfd	%f5, 72(%r1)
	stfd	%f6, 80(%r1)
	stfd	%f7, 88(%r1)
	stfd	%f8, 96(%r1)

	bl	object_getClass@plt
	bl	object_getClass+0x8000@plt

	lis	%r4, sel_forwardingTargetForSelector_@ha
	lwz	%r4, .Lgot_sel_forwardingTargetForSelector_-.Lbiased_got2(%r30)
	la	%r4, sel_forwardingTargetForSelector_@l(%r4)
	bl	class_respondsToSelector@plt
	bl	class_respondsToSelector+0x8000@plt

	cmpwi	%r3, 0
	beq-	0f

	lwz	%r3, 8(%r1)
	lis	%r4, sel_forwardingTargetForSelector_@ha
	lwz	%r4, .Lgot_sel_forwardingTargetForSelector_-.Lbiased_got2(%r30)
	la	%r4, sel_forwardingTargetForSelector_@l(%r4)
	bl	objc_msg_lookup@plt
	bl	objc_msg_lookup+0x8000@plt
	mtctr	%r3

	lwz	%r3, 8(%r1)
	lis	%r4, sel_forwardingTargetForSelector_@ha
	lwz	%r4, .Lgot_sel_forwardingTargetForSelector_-.Lbiased_got2(%r30)
	la	%r4, sel_forwardingTargetForSelector_@l(%r4)
	lwz	%r5, 12(%r1)
	bctrl

	cmpwi	%r3, 0
	beq-	0f
	lwz	%r4, 8(%r1)
	cmpw	%r3, %r4
	beq-	0f

	stw	%r3, 8(%r1)

	lwz	%r4, 12(%r1)
	bl	objc_msg_lookup@plt
	bl	objc_msg_lookup+0x8000@plt
	mtctr	%r3

	/* Restore all arguments */
	lwz	%r3, 8(%r1)
	lwz	%r4, 12(%r1)
	lwz	%r5, 16(%r1)
	lwz	%r6, 20(%r1)
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	lfd	%f3, 56(%r1)
	lfd	%f4, 64(%r1)
	lfd	%f5, 72(%r1)
	lfd	%f6, 80(%r1)
	lfd	%f7, 88(%r1)
	lfd	%f8, 96(%r1)

	lwz	%r30, 104(%r1)
	lwz	%r0, 116(%r1)
	mtlr	%r0
	addi	%r1, %r1, 112
	bctr

0:
	lwz	%r3, 8(%r1)
	lwz	%r4, 12(%r1)
	lwz	%r0, .Lgot_of_method_not_found-.Lbiased_got2(%r30)
	mtctr	%r0

	lwz	%r30, 104(%r1)
	lwz	%r0, 116(%r1)
	mtlr	%r0
	addi	%r1, %r1, 112

	b	of_method_not_found@plt
	bctr
.type of_forward, @function
.size of_forward, .-of_forward

of_forward_stret:
	stwu	%r1, -112(%r1)
	mflr	%r0
	stw	%r0, 116(%r1)
	stw	%r30, 104(%r1)

	bl	0f
0:
	mflr	%r30
	addis	%r30, %r30, .Lbiased_got2-0b@ha
	addi	%r30, %r30, .Lbiased_got2-0b@l

	/* Save all arguments */
	stw	%r3, 8(%r1)
	stw	%r4, 12(%r1)
	stw	%r5, 16(%r1)
	stw	%r6, 20(%r1)
	stw	%r7, 24(%r1)
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	stfd	%f4, 64(%r1)
	stfd	%f5, 72(%r1)
	stfd	%f6, 80(%r1)
	stfd	%f7, 88(%r1)
	stfd	%f8, 96(%r1)

	mr	%r3, %r4
	bl	object_getClass@plt
	bl	object_getClass+0x800@plt

	lis	%r4, sel_forwardingTargetForSelector_@ha
	lwz	%r4, .Lgot_sel_forwardingTargetForSelector_-.Lbiased_got2(%r30)
	la	%r4, sel_forwardingTargetForSelector_@l(%r4)
	bl	class_respondsToSelector@plt
	bl	class_respondsToSelector+0x8000@plt

	cmpwi	%r3, 0
	beq-	0f

	lwz	%r3, 12(%r1)
	lis	%r4, sel_forwardingTargetForSelector_@ha
	lwz	%r4, .Lgot_sel_forwardingTargetForSelector_-.Lbiased_got2(%r30)
	la	%r4, sel_forwardingTargetForSelector_@l(%r4)
	bl	objc_msg_lookup@plt
	bl	objc_msg_lookup+0x8000@plt
	mtctr	%r3

	lwz	%r3, 12(%r1)
	lis	%r4, sel_forwardingTargetForSelector_@ha
	lwz	%r4, .Lgot_sel_forwardingTargetForSelector_-.Lbiased_got2(%r30)
	la	%r4, sel_forwardingTargetForSelector_@l(%r4)
	lwz	%r5, 16(%r1)
	bctrl

	cmpwi	%r3, 0
	beq-	0f
	lwz	%r4, 12(%r1)
	cmpw	%r3, %r4
	beq-	0f

	stw	%r3, 12(%r1)

	lwz	%r4, 16(%r1)
	bl	objc_msg_lookup_stret@plt
	bl	objc_msg_lookup_stret+0x8000@plt
	mtctr	%r3

	/* Restore all arguments */
	lwz	%r3, 8(%r1)
	lwz	%r4, 12(%r1)
	lwz	%r5, 16(%r1)
	lwz	%r6, 20(%r1)
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	addi	%r1, %r1, 112
	bctr

0:
	lwz	%r3, 8(%r1)
	lwz	%r4, 12(%r1)
	lwz	%r5, 16(%r1)
	lwz	%r0, .Lgot_of_method_not_found_stret-.Lbiased_got2(%r30)
	mtctr	%r0

	lwz	%r30, 104(%r1)
	lwz	%r0, 116(%r1)
	mtlr	%r0
	addi	%r1, %r1, 112

	b	of_method_not_found_stret@plt
	bctr
.type of_forward_stret, @function
.size of_forward_stret, .-of_forward_stret

init:
	stwu	%r1, -16(%r1)
	mflr	%r0
	stw	%r0, 20(%r1)
	stw	%r30, 8(%r1)
	lis	%r3, module@ha
	la	%r3, module@l(%r3)
	b	__objc_exec_class@plt

	bl	0f
0:
	mflr	%r30
	addis	%r30, %r30, .Lbiased_got2-0b@ha
	addi	%r30, %r30, .Lbiased_got2-0b@l

	lwz	%r3, .Lgot_module-.Lbiased_got2(%r30)
	bl	__objc_exec_class+0x8000@plt

	lwz	%r30, 8(%r1)
	lwz	%r0, 20(%r1)
	addi	%r1, %r1, 16
	mtlr	%r0
	blr

.section .ctors, "aw", @progbits
	.long init

.section .rodata
str_forwardingTargetForSelector_:
	.asciz "forwardingTargetForSelector:"

.section .data
sel_forwardingTargetForSelector_:
	.long str_forwardingTargetForSelector_, 0
	.long 0, 0
symtab:
	.long 0, sel_forwardingTargetForSelector_
	.short 0, 0
	.long 0
	.long 0
module:
	.long 8, 16, 0, symtab

.section .got2, "aw"
.Lbiased_got2 = .+0x8000
.Lgot_module:
	.long module
.Lgot_sel_forwardingTargetForSelector_:
	.long sel_forwardingTargetForSelector_
.Lgot_of_method_not_found:
	.long of_method_not_found
.Lgot_of_method_not_found_stret:
	.long of_method_not_found_stret

#ifdef OF_LINUX
.section .note.GNU-stack, "", @progbits
#endif

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