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From bbcc1a69f787881f16156f3c789052942a564103 Mon Sep 17 00:00:00 2001
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From: "H.J. Lu" <hjl.tools@gmail.com>
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Date: Thu, 20 Jan 2022 05:35:49 -0800
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Subject: [PATCH] isa-l/CET: Add CET marker to x86-64 crc32 assembly codes
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Add .note.gnu.property section to x86-64 crc32 assembly codes to mark
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for IBT and SHSTK compatibility.
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---
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crc/crc32_gzip_refl_by16_10.asm | 9 +++++++++
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crc/crc32_gzip_refl_by8.asm | 9 +++++++++
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crc/crc32_gzip_refl_by8_02.asm | 9 +++++++++
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crc/crc32_ieee_01.asm | 8 ++++++++
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crc/crc32_ieee_02.asm | 9 +++++++++
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crc/crc32_ieee_by16_10.asm | 9 +++++++++
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crc/crc32_ieee_by4.asm | 9 +++++++++
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crc/crc32_iscsi_00.asm | 8 ++++++++
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crc/crc32_iscsi_01.asm | 8 ++++++++
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9 files changed, 78 insertions(+)
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diff --git a/src/isa-l/crc/crc32_gzip_refl_by16_10.asm b/src/isa-l/crc/crc32_gzip_refl_by16_10.asm
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index 40236f6..b16874d 100644
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--- a/src/isa-l/crc/crc32_gzip_refl_by16_10.asm
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+++ b/src/isa-l/crc/crc32_gzip_refl_by16_10.asm
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@@ -566,3 +566,12 @@ global no_ %+ FUNCTION_NAME
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no_ %+ FUNCTION_NAME %+ :
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%endif
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%endif ; (AS_FEATURE_LEVEL) >= 10
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+
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_gzip_refl_by8.asm b/src/isa-l/crc/crc32_gzip_refl_by8.asm
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index 62f7e7d..97b0c4a 100644
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--- a/src/isa-l/crc/crc32_gzip_refl_by8.asm
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+++ b/src/isa-l/crc/crc32_gzip_refl_by8.asm
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@@ -622,3 +622,12 @@ dq 0x0706050403020100, 0x000e0d0c0b0a0908
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;;; func core, ver, snum
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slversion crc32_gzip_refl_by8, 01, 00, 002c
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+
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_gzip_refl_by8_02.asm b/src/isa-l/crc/crc32_gzip_refl_by8_02.asm
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index 80d849e..1d5a75f 100644
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--- a/src/isa-l/crc/crc32_gzip_refl_by8_02.asm
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+++ b/src/isa-l/crc/crc32_gzip_refl_by8_02.asm
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@@ -553,3 +553,12 @@ pshufb_shf_table:
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; dq 0x060504030201008f, 0x0e0d0c0b0a090807 ; shl 1 (16-15) / shr15
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dq 0x8786858483828100, 0x8f8e8d8c8b8a8988
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dq 0x0706050403020100, 0x000e0d0c0b0a0908
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+
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_ieee_01.asm b/src/isa-l/crc/crc32_ieee_01.asm
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index 32495ed..cfc443b 100644
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--- a/src/isa-l/crc/crc32_ieee_01.asm
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+++ b/src/isa-l/crc/crc32_ieee_01.asm
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@@ -653,3 +653,11 @@ dq 0x0706050403020100, 0x000e0d0c0b0a0908
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;;; func core, ver, snum
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slversion crc32_ieee_01, 01, 06, 0011
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_ieee_02.asm b/src/isa-l/crc/crc32_ieee_02.asm
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index 8a472b0..dd7096a 100644
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--- a/src/isa-l/crc/crc32_ieee_02.asm
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+++ b/src/isa-l/crc/crc32_ieee_02.asm
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@@ -649,3 +649,12 @@ pshufb_shf_table:
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; dq 0x060504030201008f, 0x0e0d0c0b0a090807 ; shl 1 (16-15) / shr15
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dq 0x8786858483828100, 0x8f8e8d8c8b8a8988
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dq 0x0706050403020100, 0x000e0d0c0b0a0908
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+
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_ieee_by16_10.asm b/src/isa-l/crc/crc32_ieee_by16_10.asm
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index 200fd93..2afd597 100644
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--- a/src/isa-l/crc/crc32_ieee_by16_10.asm
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+++ b/src/isa-l/crc/crc32_ieee_by16_10.asm
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@@ -582,3 +582,12 @@ global no_ %+ FUNCTION_NAME
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no_ %+ FUNCTION_NAME %+ :
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%endif
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%endif ; (AS_FEATURE_LEVEL) >= 10
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+
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_ieee_by4.asm b/src/isa-l/crc/crc32_ieee_by4.asm
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index 39bed5a..847d0bd 100644
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--- a/src/isa-l/crc/crc32_ieee_by4.asm
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+++ b/src/isa-l/crc/crc32_ieee_by4.asm
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@@ -563,3 +563,12 @@ SHUF_MASK dq 0x08090A0B0C0D0E0F, 0x0001020304050607
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;;; func core, ver, snum
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slversion crc32_ieee_by4, 05, 02, 0017
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+
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_iscsi_00.asm b/src/isa-l/crc/crc32_iscsi_00.asm
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index 4f81e3a..3d6b2d1 100644
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--- a/src/isa-l/crc/crc32_iscsi_00.asm
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+++ b/src/isa-l/crc/crc32_iscsi_00.asm
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@@ -669,3 +669,11 @@ DD 0x54851c7f,0x89e3d7c4,0xeba4fdf8,0x36c23643
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;;; func core, ver, snum
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slversion crc32_iscsi_00, 00, 04, 0014
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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diff --git a/src/isa-l/crc/crc32_iscsi_01.asm b/src/isa-l/crc/crc32_iscsi_01.asm
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index 2a81517..c048413 100644
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--- a/src/isa-l/crc/crc32_iscsi_01.asm
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+++ b/src/isa-l/crc/crc32_iscsi_01.asm
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@@ -588,3 +588,11 @@ K_table:
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;;; func core, ver, snum
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slversion crc32_iscsi_01, 01, 04, 0015
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+%ifidn __OUTPUT_FORMAT__, elf64
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+; inform linker that this doesn't require executable stack
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+section .note.GNU-stack noalloc noexec nowrite progbits
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+; inform linker that this is compatible with IBT and SHSTK
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+section .note.gnu.property note alloc noexec align=8
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+DD 0x00000004,0x00000010,0x00000005,0x00554e47
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+DD 0xc0000002,0x00000004,0x00000003,0x00000000
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+%endif
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--
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2.34.1
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