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e500 port: getcontext / setcontext / swapcontext.

This commit is contained in:
Joseph Myers 2013-10-04 15:55:15 +00:00
parent afee9c1a25
commit cd78f7e767
9 changed files with 190 additions and 0 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2013-10-04 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
(__CONTEXT_FUNC_NAME) [__CONTEXT_ENABLE_E500]: Use
getcontext_e500.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
(__CONTEXT_FUNC_NAME) [__CONTEXT_ENABLE_E500]: Use
setcontext_e500.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
(__CONTEXT_FUNC_NAME) [__CONTEXT_ENABLE_E500]: Use getcontext_e500
and setcontext_e500.
2013-10-04 Chris Leonard <cjl@sugarlabs,.org>
* locale/iso-3166.def: Update iso-1366.def and related occurrences

11
ports/ChangeLog.powerpc
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@ -1,3 +1,14 @@
2013-10-04 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S:
Include <context-e500.h>.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S:
Likewise.
2013-08-30 Ondřej Bílka <neleai@seznam.cz>
* sysdeps/powerpc/powerpc32/405/memcpy.S: Fix typos.

144
ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h Normal file
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@ -0,0 +1,144 @@
/* getcontext/setcontext/makecontext support for e500 high parts of registers.
Copyright (C) 2006-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _CONTEXT_E500_H
#define _CONTEXT_E500_H 1
#if defined __SPE__ || (defined __NO_FPRS__ && !defined _SOFT_FLOAT)
# define __CONTEXT_ENABLE_E500 1
/* We follow the kernel's layout, which saves the high parts of the
SPE registers in the vregs area, immediately followed by the ACC
value (call-clobbered, not handled here) and the SPEFSCR value. */
.macro getcontext_e500
la r10,(_UC_VREGS)(r3)
evstwwe r0,(0*4)(r10)
evstwwe r1,(1*4)(r10)
evstwwe r2,(2*4)(r10)
evstwwe r3,(3*4)(r10)
evstwwe r4,(4*4)(r10)
evstwwe r5,(5*4)(r10)
evstwwe r6,(6*4)(r10)
evstwwe r7,(7*4)(r10)
evstwwe r8,(8*4)(r10)
evstwwe r9,(9*4)(r10)
evstwwe r10,(10*4)(r10)
evstwwe r11,(11*4)(r10)
evstwwe r12,(12*4)(r10)
evstwwe r13,(13*4)(r10)
evstwwe r14,(14*4)(r10)
evstwwe r15,(15*4)(r10)
evstwwe r16,(16*4)(r10)
evstwwe r17,(17*4)(r10)
evstwwe r18,(18*4)(r10)
evstwwe r19,(19*4)(r10)
evstwwe r20,(20*4)(r10)
evstwwe r21,(21*4)(r10)
evstwwe r22,(22*4)(r10)
evstwwe r23,(23*4)(r10)
evstwwe r24,(24*4)(r10)
evstwwe r25,(25*4)(r10)
evstwwe r26,(26*4)(r10)
evstwwe r27,(27*4)(r10)
evstwwe r28,(28*4)(r10)
evstwwe r29,(29*4)(r10)
evstwwe r30,(30*4)(r10)
evstwwe r31,(31*4)(r10)
mfspefscr r9
stw r9,(34*4)(r10)
.endm
.macro setcontext_e500
lwz r3,_UC_VREGS+(0*4)(r31)
evmergelo r0,r3,r0
lwz r3,_UC_VREGS+(1*4)(r31)
evmergelo r1,r3,r1
lwz r3,_UC_VREGS+(2*4)(r31)
evmergelo r2,r3,r2
lwz r3,_UC_VREGS+(1*4)(r31)
evmergelo r1,r3,r1
lwz r3,_UC_VREGS+(2*4)(r31)
evmergelo r2,r3,r2
lwz r3,_UC_VREGS+(3*4)(r31)
evmergelo r3,r3,r3
lwz r3,_UC_VREGS+(4*4)(r31)
evmergelo r4,r3,r4
lwz r3,_UC_VREGS+(5*4)(r31)
evmergelo r5,r3,r5
lwz r3,_UC_VREGS+(6*4)(r31)
evmergelo r6,r3,r6
lwz r3,_UC_VREGS+(7*4)(r31)
evmergelo r7,r3,r7
lwz r3,_UC_VREGS+(8*4)(r31)
evmergelo r8,r3,r8
lwz r3,_UC_VREGS+(9*4)(r31)
evmergelo r9,r3,r9
lwz r3,_UC_VREGS+(10*4)(r31)
evmergelo r10,r3,r10
lwz r3,_UC_VREGS+(11*4)(r31)
evmergelo r11,r3,r11
lwz r3,_UC_VREGS+(12*4)(r31)
evmergelo r12,r3,r12
lwz r3,_UC_VREGS+(13*4)(r31)
evmergelo r13,r3,r13
lwz r3,_UC_VREGS+(14*4)(r31)
evmergelo r14,r3,r14
lwz r3,_UC_VREGS+(15*4)(r31)
evmergelo r15,r3,r15
lwz r3,_UC_VREGS+(16*4)(r31)
evmergelo r16,r3,r16
lwz r3,_UC_VREGS+(17*4)(r31)
evmergelo r17,r3,r17
lwz r3,_UC_VREGS+(18*4)(r31)
evmergelo r18,r3,r18
lwz r3,_UC_VREGS+(19*4)(r31)
evmergelo r19,r3,r19
lwz r3,_UC_VREGS+(20*4)(r31)
evmergelo r20,r3,r20
lwz r3,_UC_VREGS+(21*4)(r31)
evmergelo r21,r3,r21
lwz r3,_UC_VREGS+(22*4)(r31)
evmergelo r22,r3,r22
lwz r3,_UC_VREGS+(23*4)(r31)
evmergelo r23,r3,r23
lwz r3,_UC_VREGS+(24*4)(r31)
evmergelo r24,r3,r24
lwz r3,_UC_VREGS+(25*4)(r31)
evmergelo r25,r3,r25
lwz r3,_UC_VREGS+(26*4)(r31)
evmergelo r26,r3,r26
lwz r3,_UC_VREGS+(27*4)(r31)
evmergelo r27,r3,r27
lwz r3,_UC_VREGS+(28*4)(r31)
evmergelo r28,r3,r28
lwz r3,_UC_VREGS+(29*4)(r31)
evmergelo r29,r3,r29
lwz r3,_UC_VREGS+(30*4)(r31)
evmergelo r30,r3,r30
lwz r3,_UC_VREGS+(31*4)(r31)
evmergelo r31,r3,r31
lwz r3,_UC_VREGS+(34*4)(r31)
mtspefscr r3
.endm
#else
# undef __CONTEXT_ENABLE_E500
#endif
#endif /* context-e500.h */

2
ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S
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@ -24,6 +24,8 @@
#include <asm/ptrace.h>
#include "ucontext_i.h"
#include <context-e500.h>
#define __CONTEXT_FUNC_NAME __getcontext
#undef __CONTEXT_ENABLE_FPRS
#undef __CONTEXT_ENABLE_VRS

2
ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S
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@ -24,6 +24,8 @@
#include <asm/ptrace.h>
#include "ucontext_i.h"
#include <context-e500.h>
#define __CONTEXT_FUNC_NAME __setcontext
#undef __CONTEXT_ENABLE_FPRS
#undef __CONTEXT_ENABLE_VRS

2
ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S
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@ -24,6 +24,8 @@
#include <asm/ptrace.h>
#include "ucontext_i.h"
#include <context-e500.h>
#define __CONTEXT_FUNC_NAME __swapcontext
#undef __CONTEXT_ENABLE_FPRS
#undef __CONTEXT_ENABLE_VRS

5
sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
View File

@ -261,6 +261,11 @@ ENTRY(__CONTEXT_FUNC_NAME)
2: /* L(no_vec): */
# endif
#endif
#ifdef __CONTEXT_ENABLE_E500
getcontext_e500
#endif
/* We need to set up parms and call sigprocmask which will clobber
volatile registers. So before the call we need to retrieve the
original ucontext ptr (parm1) from stack and store the UC_REGS_PTR

4
sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
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@ -243,6 +243,10 @@ ENTRY(__CONTEXT_FUNC_NAME)
lfd fp31,_UC_FREGS+(31*8)(r31)
#endif /* __CONTEXT_ENABLE_FPRS */
#ifdef __CONTEXT_ENABLE_E500
setcontext_e500
#endif
/* Restore LR and CCR, and set CTR to the NIP value */
lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
lwz r4,_UC_GREGS+(PT_NIP*4)(r31)

8
sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
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@ -265,6 +265,10 @@ ENTRY(__CONTEXT_FUNC_NAME)
# endif /* __CONTEXT_ENABLE_VRS */
#endif /* __CONTEXT_ENABLE_FPRS */
#ifdef __CONTEXT_ENABLE_E500
getcontext_e500
#endif
/* Restore ucontext (parm1) from stack. */
lwz r12,_FRAME_PARM_SAVE1(r1)
li r4,0
@ -468,6 +472,10 @@ ENTRY(__CONTEXT_FUNC_NAME)
lfd fp31,_UC_FREGS+(31*8)(r31)
#endif /* __CONTEXT_ENABLE_FPRS */
#ifdef __CONTEXT_ENABLE_E500
setcontext_e500
#endif
/* Restore LR and CCR, and set CTR to the NIP value */
lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
lwz r4,_UC_GREGS+(PT_NIP*4)(r31)