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Retro68/gcc/libitm/config/powerpc/sjlj.S
Wolfgang Thaller 449227a01f upgrade to gcc 4.9.1
2014-09-21 19:33:12 +02:00

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/* Copyright (C) 2012-2014 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU Transactional Memory Library (libitm).
Libitm is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
.text
#include "asmcfi.h"
#if defined(__powerpc64__) && _CALL_ELF == 2
.macro FUNC name
.globl \name
.type \name, @function
\name:
0: addis 2,12,(.TOC.-0b)@ha
addi 2,2,(.TOC.-0b)@l
.localentry \name, . - \name
.endm
.macro END name
.size \name, . - \name
.endm
.macro HIDDEN name
.hidden \name
.endm
.macro CALL name
bl \name
nop
.endm
#elif defined(__powerpc64__) && defined(__ELF__)
.macro FUNC name
.globl \name, .\name
.section ".opd","aw"
.align 3
\name:
.quad .\name, .TOC.@tocbase, 0
.size \name, 24
.type .\name, @function
.text
.\name:
.endm
.macro END name
.size .\name, . - .\name
.endm
.macro HIDDEN name
.hidden \name, .\name
.endm
.macro CALL name
bl \name
nop
.endm
#elif defined(__ELF__)
.macro FUNC name
.globl \name
.type \name, @function
\name:
.endm
.macro END name
.size \name, . - \name
.endm
.macro HIDDEN name
.hidden \name
.endm
.macro CALL name
bl \name
.endm
#elif defined(_CALL_DARWIN)
.macro FUNC name
.globl _$0
_$0:
.endmacro
.macro END name
.endmacro
.macro HIDDEN name
.private_extern _$0
.endmacro
.macro CALL name
bl _$0
.endmacro
# ifdef __ppc64__
.machine ppc64
# else
.machine ppc7400
# endif
#else
#error "unsupported system"
#endif
/* Parameterize the naming of registers. */
#if defined(__ELF__)
# define r(N) %r##N
# define f(N) %f##N
# define v(N) %v##N
#elif defined(__MACH__)
# define r(N) r##N
# define f(N) f##N
# define v(N) v##N
#else
# define r(N) N
# define f(N) N
# define v(N) N
#endif
/* Parameterize the code for 32-bit vs 64-bit. */
#if defined(__powerpc64__) || defined(__ppc64__)
#define ldreg ld
#define streg std
#define stregu stdu
#define WS 8
#else
#define ldreg lwz
#define streg stw
#define stregu stwu
#define WS 4
#endif
/* Parameterize the code for call frame constants. */
#if defined(_CALL_AIXDESC)
# define BASE 6*WS
# define LR_SAVE 2*WS
#elif _CALL_ELF == 2
# define BASE 6*WS
# define LR_SAVE 2*WS
#elif defined(_CALL_SYSV)
# define BASE 2*WS
# define LR_SAVE 1*WS
#elif defined(_CALL_DARWIN)
# define BASE (6*WS + 2*WS)
# define LR_SAVE 2*WS
#else
# error "unsupported system"
#endif
#if defined(__ALTIVEC__) || defined(__VSX__)
# define OFS_VR 0
# define OFS_VSCR 12*16
# define OFS_VR_END OFS_VSCR + 8
#else
# define OFS_VR_END 0
#endif
#ifndef _SOFT_FLOAT
# define OFS_FR OFS_VR_END
# define OFS_FPSCR OFS_FR + 18*8
# define OFS_FR_END OFS_FPSCR + 8
#else
# define OFS_FR_END OFS_VR_END
#endif
#define OFS_GR OFS_FR_END
#define OFS_CFA OFS_GR + 18*WS
#define OFS_LR OFS_CFA + WS
#define OFS_TOC OFS_LR + WS
#define OFS_CR OFS_TOC + WS
#define OFS_END (((OFS_CR + WS + 15) / 16) * 16)
#define FRAME (((BASE + OFS_END + 15) / 16) * 16)
#define VRSAVE 256
.align 4
FUNC _ITM_beginTransaction
cfi_startproc
mflr r(0)
mfcr r(5)
addi r(4), r(1), -OFS_END
mr r(6), r(1)
streg r(0), LR_SAVE(r(1))
stregu r(1), -FRAME(r(1))
cfi_def_cfa_offset(FRAME)
cfi_offset(65, LR_SAVE)
streg r(6), OFS_CFA(r(4))
streg r(0), OFS_LR(r(4))
#ifdef _CALL_DARWIN
streg r(13), OFS_TOC(r(4))
#else
streg r(2), OFS_TOC(r(4))
#endif
streg r(5), OFS_CR(r(4))
streg r(14), 0*WS+OFS_GR(r(4))
streg r(15), 1*WS+OFS_GR(r(4))
streg r(16), 2*WS+OFS_GR(r(4))
streg r(17), 3*WS+OFS_GR(r(4))
streg r(18), 4*WS+OFS_GR(r(4))
streg r(19), 5*WS+OFS_GR(r(4))
streg r(20), 6*WS+OFS_GR(r(4))
streg r(21), 7*WS+OFS_GR(r(4))
streg r(22), 8*WS+OFS_GR(r(4))
streg r(23), 9*WS+OFS_GR(r(4))
streg r(24), 10*WS+OFS_GR(r(4))
streg r(25), 11*WS+OFS_GR(r(4))
streg r(26), 12*WS+OFS_GR(r(4))
streg r(27), 13*WS+OFS_GR(r(4))
streg r(28), 14*WS+OFS_GR(r(4))
streg r(29), 15*WS+OFS_GR(r(4))
streg r(30), 16*WS+OFS_GR(r(4))
streg r(31), 17*WS+OFS_GR(r(4))
#ifndef _SOFT_FLOAT
/* ??? Determine when FPRs not present. */
/* ??? Test r(3) for pr_hasNoFloatUpdate and skip the fp save.
This is not yet set by the compiler. */
mffs f(0)
stfd f(14), 0+OFS_FR(r(4))
stfd f(15), 8+OFS_FR(r(4))
stfd f(16), 16+OFS_FR(r(4))
stfd f(17), 24+OFS_FR(r(4))
stfd f(18), 32+OFS_FR(r(4))
stfd f(19), 40+OFS_FR(r(4))
stfd f(20), 48+OFS_FR(r(4))
stfd f(21), 56+OFS_FR(r(4))
stfd f(22), 64+OFS_FR(r(4))
stfd f(23), 72+OFS_FR(r(4))
stfd f(24), 80+OFS_FR(r(4))
stfd f(25), 88+OFS_FR(r(4))
stfd f(26), 96+OFS_FR(r(4))
stfd f(27),104+OFS_FR(r(4))
stfd f(28),112+OFS_FR(r(4))
stfd f(29),120+OFS_FR(r(4))
stfd f(30),128+OFS_FR(r(4))
stfd f(31),136+OFS_FR(r(4))
stfd f(0), OFS_FPSCR(r(4))
#endif
#if defined(__ALTIVEC__)
/* ??? Determine when VRs not present. */
/* ??? Test r(3) for pr_hasNoVectorUpdate and skip the vr save.
This is not yet set by the compiler. */
addi r(5), r(4), OFS_VR
addi r(6), r(4), OFS_VR+16
mfspr r(0), VRSAVE
stvx v(20), 0, r(5)
addi r(5), r(5), 32
stvx v(21), 0, r(6)
addi r(6), r(6), 32
stvx v(22), 0, r(5)
addi r(5), r(5), 32
stvx v(23), 0, r(6)
addi r(6), r(6), 32
stvx v(25), 0, r(5)
addi r(5), r(5), 32
stvx v(26), 0, r(6)
addi r(6), r(6), 32
stvx v(26), 0, r(5)
addi r(5), r(5), 32
stvx v(27), 0, r(6)
addi r(6), r(6), 32
stvx v(28), 0, r(5)
addi r(5), r(5), 32
stvx v(29), 0, r(6)
addi r(6), r(6), 32
stvx v(30), 0, r(5)
stvx v(31), 0, r(6)
streg r(0), OFS_VSCR(r(4))
#endif
CALL GTM_begin_transaction
ldreg r(0), LR_SAVE+FRAME(r(1))
mtlr r(0)
addi r(1), r(1), FRAME
cfi_def_cfa_offset(0)
cfi_restore(65)
blr
cfi_endproc
END _ITM_beginTransaction
.align 4
HIDDEN GTM_longjmp
FUNC GTM_longjmp
cfi_startproc
#if defined(__ALTIVEC__) || defined(__VSX__)
/* ??? Determine when VRs not present. */
/* ??? Test r(5) for pr_hasNoVectorUpdate and skip the vr restore.
This is not yet set by the compiler. */
addi r(6), r(4), OFS_VR
addi r(7), r(4), OFS_VR+16
ldreg r(0), OFS_VSCR(r(4))
cfi_undefined(v(20))
cfi_undefined(v(21))
cfi_undefined(v(22))
cfi_undefined(v(23))
cfi_undefined(v(24))
cfi_undefined(v(25))
cfi_undefined(v(26))
cfi_undefined(v(27))
cfi_undefined(v(28))
cfi_undefined(v(29))
cfi_undefined(v(30))
cfi_undefined(v(31))
lvx v(20), 0, r(6)
addi r(6), r(6), 32
lvx v(21), 0, r(7)
addi r(7), r(7), 32
lvx v(22), 0, r(6)
addi r(6), r(6), 32
lvx v(23), 0, r(7)
addi r(7), r(7), 32
lvx v(24), 0, r(6)
addi r(6), r(6), 32
lvx v(25), 0, r(7)
addi r(7), r(7), 32
lvx v(26), 0, r(6)
addi r(6), r(6), 32
lvx v(27), 0, r(7)
addi r(7), r(7), 32
lvx v(28), 0, r(6)
addi r(6), r(6), 32
lvx v(29), 0, r(7)
addi r(7), r(7), 32
lvx v(30), 0, r(6)
lvx v(31), 0, r(7)
mtspr VRSAVE, r(0)
#endif
#ifndef _SOFT_FLOAT
/* ??? Determine when FPRs not present. */
/* ??? Test r(5) for pr_hasNoFloatUpdate and skip the fp load.
This is not yet set by the compiler. */
lfd f(0), OFS_FPSCR(r(4))
cfi_undefined(f(14))
cfi_undefined(f(15))
cfi_undefined(f(16))
cfi_undefined(f(17))
cfi_undefined(f(18))
cfi_undefined(f(19))
cfi_undefined(f(20))
cfi_undefined(f(21))
cfi_undefined(f(22))
cfi_undefined(f(23))
cfi_undefined(f(24))
cfi_undefined(f(25))
cfi_undefined(f(26))
cfi_undefined(f(27))
cfi_undefined(f(28))
cfi_undefined(f(29))
cfi_undefined(f(30))
cfi_undefined(f(31))
lfd f(14), 0+OFS_FR(r(4))
lfd f(15), 8+OFS_FR(r(4))
lfd f(16), 16+OFS_FR(r(4))
lfd f(17), 24+OFS_FR(r(4))
lfd f(18), 32+OFS_FR(r(4))
lfd f(19), 40+OFS_FR(r(4))
lfd f(20), 48+OFS_FR(r(4))
lfd f(21), 56+OFS_FR(r(4))
lfd f(22), 64+OFS_FR(r(4))
lfd f(23), 72+OFS_FR(r(4))
lfd f(24), 80+OFS_FR(r(4))
lfd f(25), 88+OFS_FR(r(4))
lfd f(26), 96+OFS_FR(r(4))
lfd f(27),104+OFS_FR(r(4))
lfd f(28),112+OFS_FR(r(4))
lfd f(29),120+OFS_FR(r(4))
lfd f(30),128+OFS_FR(r(4))
lfd f(31),136+OFS_FR(r(4))
mtfsf 0xff, f(0)
#endif
ldreg r(6), OFS_CFA(r(4))
ldreg r(0), OFS_LR(r(4))
#ifdef _CALL_DARWIN
ldreg r(13), OFS_TOC(r(4))
#else
ldreg r(2), OFS_TOC(r(4))
#endif
ldreg r(7), OFS_CR(r(4))
/* At the instant we restore the LR, the only coherent view of
the world we have is into the new stack frame. Define the
CFA in terms of the not-yet-restored stack pointer. This will
last until the end of the function. */
mtlr r(0)
cfi_def_cfa(r(6), 0)
cfi_undefined(r(14))
cfi_undefined(r(15))
cfi_undefined(r(16))
cfi_undefined(r(17))
cfi_undefined(r(18))
cfi_undefined(r(19))
cfi_undefined(r(20))
cfi_undefined(r(21))
cfi_undefined(r(22))
cfi_undefined(r(23))
cfi_undefined(r(24))
cfi_undefined(r(25))
cfi_undefined(r(26))
cfi_undefined(r(27))
cfi_undefined(r(28))
cfi_undefined(r(29))
cfi_undefined(r(30))
cfi_undefined(r(31))
mtcr r(7)
ldreg r(14), 0*WS+OFS_GR(r(4))
ldreg r(15), 1*WS+OFS_GR(r(4))
ldreg r(16), 2*WS+OFS_GR(r(4))
ldreg r(17), 3*WS+OFS_GR(r(4))
ldreg r(18), 4*WS+OFS_GR(r(4))
ldreg r(19), 5*WS+OFS_GR(r(4))
ldreg r(20), 6*WS+OFS_GR(r(4))
ldreg r(21), 7*WS+OFS_GR(r(4))
ldreg r(22), 8*WS+OFS_GR(r(4))
ldreg r(23), 9*WS+OFS_GR(r(4))
ldreg r(24), 10*WS+OFS_GR(r(4))
ldreg r(25), 11*WS+OFS_GR(r(4))
ldreg r(26), 12*WS+OFS_GR(r(4))
ldreg r(27), 13*WS+OFS_GR(r(4))
ldreg r(28), 14*WS+OFS_GR(r(4))
ldreg r(29), 15*WS+OFS_GR(r(4))
ldreg r(30), 16*WS+OFS_GR(r(4))
ldreg r(31), 17*WS+OFS_GR(r(4))
mr r(1), r(6)
blr
cfi_endproc
END GTM_longjmp
#ifdef __linux__
.section .note.GNU-stack, "", @progbits
#endif
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