803b49c40b
binutils-2.39 enabed a few warning by default (https://sourceware.org/pipermail/binutils/2022-August/122246.html): > The ELF linker will now generate a warning message if the stack is made executable. Let's suppress the warnings in assembly files by adding non-executables stack markings. This fixes at least systemd build which uses '-Wl,--fatal-warnings': https://github.com/systemd/systemd/issues/24226
65 lines
1.5 KiB
ArmAsm
65 lines
1.5 KiB
ArmAsm
/*
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* Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
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* This program and the accompanying materials are licensed and made
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available
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* under the terms and conditions of the BSD License which accompanies
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this
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* distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php.
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
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BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED.
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*/
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.text
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.p2align 3
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#define GPR_LAYOUT \
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REG_PAIR (x19, x20, 0); \
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REG_PAIR (x21, x22, 16); \
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REG_PAIR (x23, x24, 32); \
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REG_PAIR (x25, x26, 48); \
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REG_PAIR (x27, x28, 64); \
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REG_PAIR (x29, x30, 80); \
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REG_ONE (x16, 96)
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#define FPR_LAYOUT \
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REG_PAIR(d8, d9, 112); \
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REG_PAIR(d10, d11, 128); \
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REG_PAIR(d12, d13, 144); \
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REG_PAIR(d14, d15, 160);
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#define REG_PAIR(REG1, REG2, OFFS) stp REG1, REG2, [x0, OFFS]
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#define REG_ONE(REG1, OFFS) str REG1, [x0, OFFS]
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.globl setjmp
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.type setjmp, @function
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setjmp:
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mov x16, sp
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GPR_LAYOUT
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FPR_LAYOUT
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mov w0, #0
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ret
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#undef REG_PAIR
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#undef REG_ONE
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#define REG_PAIR(REG1, REG2, OFFS) ldp REG1, REG2, [x0, OFFS]
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#define REG_ONE(REG1, OFFS) ldr REG1, [x0, OFFS]
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.globl longjmp
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.type longjmp, @function
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longjmp:
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GPR_LAYOUT
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FPR_LAYOUT
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mov sp, x16
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cmp w1, #0
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mov w0, #1
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csel w0, w1, w0, ne
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br x30
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#if defined(__ELF__) && defined(__linux__)
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.section .note.GNU-stack,"",%progbits
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#endif
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