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a053e87849
GCC 9 dropped support for the SPE extensions to PowerPC, which means
powerpc*-*-*gnuspe* configurations are no longer buildable with that
compiler. This ISA extension was peculiar to the “e500” line of
embedded PowerPC chips, which, as far as I can tell, are no longer
being manufactured, so I think we should follow suit.
This patch was developed by grepping for “e500”, “__SPE__”, and
“__NO_FPRS__”, and may not eliminate every vestige of SPE support.
Most uses of __NO_FPRS__ are left alone, as they are relevant to
normal embedded PowerPC with soft-float.
* sysdeps/powerpc/preconfigure: Error out on powerpc-*-*gnuspe*
host type.
* scripts/build-many-glibcs.py: Remove powerpc-*-linux-gnuspe
and powerpc-*-linux-gnuspe-e500v1 from list of build configurations.
* sysdeps/powerpc/powerpc32/e500: Recursively delete.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/e500: Recursively delete.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h:
Delete.
* sysdeps/powerpc/fpu_control.h: Remove SPE variant.
Issue an #error if used with a compiler in SPE-float mode.
* sysdeps/powerpc/powerpc32/__longjmp_common.S
* sysdeps/powerpc/powerpc32/setjmp_common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
Remove code to preserve SPE register state.
* sysdeps/unix/sysv/linux/powerpc/elision-lock.c
* sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
Remove __SPE__ ifndefs.
77 lines
2.2 KiB
ArmAsm
77 lines
2.2 KiB
ArmAsm
/* longjmp for PowerPC.
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Copyright (C) 1995-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <stap-probe.h>
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#define _ASM
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#ifdef __NO_VMX__
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# include <novmxsetjmp.h>
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#else
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# include <jmpbuf-offsets.h>
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#endif
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ENTRY (__longjmp_symbol)
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#if defined PTR_DEMANGLE || defined CHECK_SP
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lwz r24,(JB_GPR1*4)(r3)
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# ifdef CHECK_SP
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# ifdef PTR_DEMANGLE
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PTR_DEMANGLE3 (r24, r24, r25)
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# endif
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CHECK_SP (r24)
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mr r1,r24
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# endif
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#else
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lwz r1,(JB_GPR1*4)(r3)
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#endif
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lwz r0,(JB_LR*4)(r3)
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lwz r14,((JB_GPRS+14-14)*4)(r3)
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lwz r15,((JB_GPRS+15-14)*4)(r3)
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lwz r16,((JB_GPRS+16-14)*4)(r3)
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lwz r17,((JB_GPRS+17-14)*4)(r3)
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lwz r18,((JB_GPRS+18-14)*4)(r3)
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lwz r19,((JB_GPRS+19-14)*4)(r3)
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lwz r20,((JB_GPRS+20-14)*4)(r3)
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#ifdef PTR_DEMANGLE
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# ifndef CHECK_SP
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PTR_DEMANGLE3 (r1, r24, r25)
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# endif
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PTR_DEMANGLE2 (r0, r25)
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#endif
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/* longjmp/longjmp_target probe expects longjmp first argument (4@3),
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second argument (-4@4), and target address (4@0), respectively. */
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LIBC_PROBE (longjmp, 3, 4@3, -4@4, 4@0)
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mtlr r0
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lwz r21,((JB_GPRS+21-14)*4)(r3)
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lwz r22,((JB_GPRS+22-14)*4)(r3)
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lwz r5,(JB_CR*4)(r3)
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lwz r23,((JB_GPRS+23-14)*4)(r3)
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lwz r24,((JB_GPRS+24-14)*4)(r3)
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lwz r25,((JB_GPRS+25-14)*4)(r3)
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mtcrf 0xFF,r5
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lwz r26,((JB_GPRS+26-14)*4)(r3)
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lwz r27,((JB_GPRS+27-14)*4)(r3)
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lwz r28,((JB_GPRS+28-14)*4)(r3)
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lwz r29,((JB_GPRS+29-14)*4)(r3)
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lwz r30,((JB_GPRS+30-14)*4)(r3)
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lwz r31,((JB_GPRS+31-14)*4)(r3)
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LIBC_PROBE (longjmp_target, 3, 4@3, -4@4, 4@0)
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mr r3,r4
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blr
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END (__longjmp_symbol)
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