automatic import of libjpeg-turboopeneuler24.03_LTS

1 files changed, 1250 insertions, 0 deletions

diff --git a/libjpeg-turbo-CET.patch b/libjpeg-turbo-CET.patch
new file mode 100644
index 0000000..5cb4107
--- /dev/null
+++ b/libjpeg-turbo-CET.patch
@@ -0,0 +1,1250 @@
+From a4f0a1781a96968c5d2db63e5f123b72dbce1876 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Nikola=20Forr=C3=B3?= <nforro@redhat.com>
+Date: Thu, 3 Dec 2020 18:19:33 +0100
+Subject: [PATCH] x86 SIMD: Add endbr32/endbr64 instructions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Allow for indirect branch tracking with Intel CET (Control-Flow
+Enforcement Technology) [1], by making all exported routines a possible
+target for an indirect jump.
+
+Signed-off-by: Nikola Forró <nforro@redhat.com>
+
+[1] https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf
+---
+ simd/i386/jccolext-avx2.asm   | 1 +
+ simd/i386/jccolext-mmx.asm    | 1 +
+ simd/i386/jccolext-sse2.asm   | 1 +
+ simd/i386/jcgryext-avx2.asm   | 1 +
+ simd/i386/jcgryext-mmx.asm    | 1 +
+ simd/i386/jcgryext-sse2.asm   | 1 +
+ simd/i386/jchuff-sse2.asm     | 1 +
+ simd/i386/jcphuff-sse2.asm    | 2 ++
+ simd/i386/jcsample-avx2.asm   | 2 ++
+ simd/i386/jcsample-mmx.asm    | 2 ++
+ simd/i386/jcsample-sse2.asm   | 2 ++
+ simd/i386/jdcolext-avx2.asm   | 1 +
+ simd/i386/jdcolext-mmx.asm    | 1 +
+ simd/i386/jdcolext-sse2.asm   | 1 +
+ simd/i386/jdmrgext-avx2.asm   | 2 ++
+ simd/i386/jdmrgext-mmx.asm    | 2 ++
+ simd/i386/jdmrgext-sse2.asm   | 2 ++
+ simd/i386/jdsample-avx2.asm   | 4 ++++
+ simd/i386/jdsample-mmx.asm    | 4 ++++
+ simd/i386/jdsample-sse2.asm   | 4 ++++
+ simd/i386/jfdctflt-3dn.asm    | 1 +
+ simd/i386/jfdctflt-sse.asm    | 1 +
+ simd/i386/jfdctfst-mmx.asm    | 1 +
+ simd/i386/jfdctfst-sse2.asm   | 1 +
+ simd/i386/jfdctint-avx2.asm   | 1 +
+ simd/i386/jfdctint-mmx.asm    | 1 +
+ simd/i386/jfdctint-sse2.asm   | 1 +
+ simd/i386/jidctflt-3dn.asm    | 1 +
+ simd/i386/jidctflt-sse.asm    | 1 +
+ simd/i386/jidctflt-sse2.asm   | 1 +
+ simd/i386/jidctfst-mmx.asm    | 1 +
+ simd/i386/jidctfst-sse2.asm   | 1 +
+ simd/i386/jidctint-avx2.asm   | 1 +
+ simd/i386/jidctint-mmx.asm    | 1 +
+ simd/i386/jidctint-sse2.asm   | 1 +
+ simd/i386/jidctred-mmx.asm    | 2 ++
+ simd/i386/jidctred-sse2.asm   | 2 ++
+ simd/i386/jquant-3dn.asm      | 2 ++
+ simd/i386/jquant-mmx.asm      | 2 ++
+ simd/i386/jquant-sse.asm      | 2 ++
+ simd/i386/jquantf-sse2.asm    | 2 ++
+ simd/i386/jquanti-avx2.asm    | 2 ++
+ simd/i386/jquanti-sse2.asm    | 2 ++
+ simd/nasm/jsimdext.inc        | 8 ++++++++
+ simd/x86_64/jccolext-avx2.asm | 1 +
+ simd/x86_64/jccolext-sse2.asm | 1 +
+ simd/x86_64/jcgryext-avx2.asm | 1 +
+ simd/x86_64/jcgryext-sse2.asm | 1 +
+ simd/x86_64/jchuff-sse2.asm   | 1 +
+ simd/x86_64/jcphuff-sse2.asm  | 2 ++
+ simd/x86_64/jcsample-avx2.asm | 2 ++
+ simd/x86_64/jcsample-sse2.asm | 2 ++
+ simd/x86_64/jdcolext-avx2.asm | 1 +
+ simd/x86_64/jdcolext-sse2.asm | 1 +
+ simd/x86_64/jdmrgext-avx2.asm | 2 ++
+ simd/x86_64/jdmrgext-sse2.asm | 2 ++
+ simd/x86_64/jdsample-avx2.asm | 4 ++++
+ simd/x86_64/jdsample-sse2.asm | 4 ++++
+ simd/x86_64/jfdctflt-sse.asm  | 1 +
+ simd/x86_64/jfdctfst-sse2.asm | 1 +
+ simd/x86_64/jfdctint-avx2.asm | 1 +
+ simd/x86_64/jfdctint-sse2.asm | 1 +
+ simd/x86_64/jidctflt-sse2.asm | 1 +
+ simd/x86_64/jidctfst-sse2.asm | 1 +
+ simd/x86_64/jidctint-avx2.asm | 1 +
+ simd/x86_64/jidctint-sse2.asm | 1 +
+ simd/x86_64/jidctred-sse2.asm | 2 ++
+ simd/x86_64/jquantf-sse2.asm  | 2 ++
+ simd/x86_64/jquanti-avx2.asm  | 2 ++
+ simd/x86_64/jquanti-sse2.asm  | 2 ++
+ 70 files changed, 116 insertions(+)
+
+diff --git a/simd/i386/jccolext-avx2.asm b/simd/i386/jccolext-avx2.asm
+index c46d684..7dc6e08 100644
+--- a/simd/i386/jccolext-avx2.asm
++++ b/simd/i386/jccolext-avx2.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_ycc_convert_avx2)
+ 
+ EXTN(jsimd_rgb_ycc_convert_avx2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jccolext-mmx.asm b/simd/i386/jccolext-mmx.asm
+index 6357a42..8048abb 100644
+--- a/simd/i386/jccolext-mmx.asm
++++ b/simd/i386/jccolext-mmx.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_ycc_convert_mmx)
+ 
+ EXTN(jsimd_rgb_ycc_convert_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jccolext-sse2.asm b/simd/i386/jccolext-sse2.asm
+index c6c8085..5307ddc 100644
+--- a/simd/i386/jccolext-sse2.asm
++++ b/simd/i386/jccolext-sse2.asm
+@@ -41,6 +41,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_ycc_convert_sse2)
+ 
+ EXTN(jsimd_rgb_ycc_convert_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jcgryext-avx2.asm b/simd/i386/jcgryext-avx2.asm
+index 3fa7973..27a0e11 100644
+--- a/simd/i386/jcgryext-avx2.asm
++++ b/simd/i386/jcgryext-avx2.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_gray_convert_avx2)
+ 
+ EXTN(jsimd_rgb_gray_convert_avx2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jcgryext-mmx.asm b/simd/i386/jcgryext-mmx.asm
+index 8af42e5..dda0e05 100644
+--- a/simd/i386/jcgryext-mmx.asm
++++ b/simd/i386/jcgryext-mmx.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_gray_convert_mmx)
+ 
+ EXTN(jsimd_rgb_gray_convert_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jcgryext-sse2.asm b/simd/i386/jcgryext-sse2.asm
+index c9d6ff1..f8835bb 100644
+--- a/simd/i386/jcgryext-sse2.asm
++++ b/simd/i386/jcgryext-sse2.asm
+@@ -41,6 +41,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_gray_convert_sse2)
+ 
+ EXTN(jsimd_rgb_gray_convert_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jchuff-sse2.asm b/simd/i386/jchuff-sse2.asm
+index 278cf5e..b16b974 100644
+--- a/simd/i386/jchuff-sse2.asm
++++ b/simd/i386/jchuff-sse2.asm
+@@ -349,6 +349,7 @@ times 1 << 14 db 15
+     GLOBAL_FUNCTION(jsimd_huff_encode_one_block_sse2)
+ 
+ EXTN(jsimd_huff_encode_one_block_sse2):
++    _endbr32
+ 
+ %assign stack_offset      0
+ %define arg_state         4 + stack_offset
+diff --git a/simd/i386/jcphuff-sse2.asm b/simd/i386/jcphuff-sse2.asm
+index 8b73178..87190d1 100644
+--- a/simd/i386/jcphuff-sse2.asm
++++ b/simd/i386/jcphuff-sse2.asm
+@@ -281,6 +281,7 @@
+     GLOBAL_FUNCTION(jsimd_encode_mcu_AC_first_prepare_sse2)
+ 
+ EXTN(jsimd_encode_mcu_AC_first_prepare_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+@@ -460,6 +461,7 @@ EXTN(jsimd_encode_mcu_AC_first_prepare_sse2):
+     GLOBAL_FUNCTION(jsimd_encode_mcu_AC_refine_prepare_sse2)
+ 
+ EXTN(jsimd_encode_mcu_AC_refine_prepare_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jcsample-avx2.asm b/simd/i386/jcsample-avx2.asm
+index 0a20802..46eba8c 100644
+--- a/simd/i386/jcsample-avx2.asm
++++ b/simd/i386/jcsample-avx2.asm
+@@ -43,6 +43,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_downsample_avx2)
+ 
+ EXTN(jsimd_h2v1_downsample_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+@@ -216,6 +217,7 @@ EXTN(jsimd_h2v1_downsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_downsample_avx2)
+ 
+ EXTN(jsimd_h2v2_downsample_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jcsample-mmx.asm b/simd/i386/jcsample-mmx.asm
+index 2c223ee..b2b8ded 100644
+--- a/simd/i386/jcsample-mmx.asm
++++ b/simd/i386/jcsample-mmx.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_downsample_mmx)
+ 
+ EXTN(jsimd_h2v1_downsample_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+@@ -185,6 +186,7 @@ EXTN(jsimd_h2v1_downsample_mmx):
+     GLOBAL_FUNCTION(jsimd_h2v2_downsample_mmx)
+ 
+ EXTN(jsimd_h2v2_downsample_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jcsample-sse2.asm b/simd/i386/jcsample-sse2.asm
+index 4fea60d..4c22b40 100644
+--- a/simd/i386/jcsample-sse2.asm
++++ b/simd/i386/jcsample-sse2.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_downsample_sse2)
+ 
+ EXTN(jsimd_h2v1_downsample_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+@@ -198,6 +199,7 @@ EXTN(jsimd_h2v1_downsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_downsample_sse2)
+ 
+ EXTN(jsimd_h2v2_downsample_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jdcolext-avx2.asm b/simd/i386/jdcolext-avx2.asm
+index 015be04..b076765 100644
+--- a/simd/i386/jdcolext-avx2.asm
++++ b/simd/i386/jdcolext-avx2.asm
+@@ -43,6 +43,7 @@
+     GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_avx2)
+ 
+ EXTN(jsimd_ycc_rgb_convert_avx2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jdcolext-mmx.asm b/simd/i386/jdcolext-mmx.asm
+index 5813cfc..150f5b6 100644
+--- a/simd/i386/jdcolext-mmx.asm
++++ b/simd/i386/jdcolext-mmx.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_mmx)
+ 
+ EXTN(jsimd_ycc_rgb_convert_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jdcolext-sse2.asm b/simd/i386/jdcolext-sse2.asm
+index d5572b3..cd3ac70 100644
+--- a/simd/i386/jdcolext-sse2.asm
++++ b/simd/i386/jdcolext-sse2.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_sse2)
+ 
+ EXTN(jsimd_ycc_rgb_convert_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jdmrgext-avx2.asm b/simd/i386/jdmrgext-avx2.asm
+index e35f728..0db0aa4 100644
+--- a/simd/i386/jdmrgext-avx2.asm
++++ b/simd/i386/jdmrgext-avx2.asm
+@@ -43,6 +43,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_merged_upsample_avx2)
+ 
+ EXTN(jsimd_h2v1_merged_upsample_avx2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+@@ -523,6 +524,7 @@ EXTN(jsimd_h2v1_merged_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_merged_upsample_avx2)
+ 
+ EXTN(jsimd_h2v2_merged_upsample_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jdmrgext-mmx.asm b/simd/i386/jdmrgext-mmx.asm
+index eb3e36b..6427a1a 100644
+--- a/simd/i386/jdmrgext-mmx.asm
++++ b/simd/i386/jdmrgext-mmx.asm
+@@ -40,6 +40,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_merged_upsample_mmx)
+ 
+ EXTN(jsimd_h2v1_merged_upsample_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+@@ -408,6 +409,7 @@ EXTN(jsimd_h2v1_merged_upsample_mmx):
+     GLOBAL_FUNCTION(jsimd_h2v2_merged_upsample_mmx)
+ 
+ EXTN(jsimd_h2v2_merged_upsample_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jdmrgext-sse2.asm b/simd/i386/jdmrgext-sse2.asm
+index c113dc4..6897fa1 100644
+--- a/simd/i386/jdmrgext-sse2.asm
++++ b/simd/i386/jdmrgext-sse2.asm
+@@ -42,6 +42,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_merged_upsample_sse2)
+ 
+ EXTN(jsimd_h2v1_merged_upsample_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+@@ -465,6 +466,7 @@ EXTN(jsimd_h2v1_merged_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_merged_upsample_sse2)
+ 
+ EXTN(jsimd_h2v2_merged_upsample_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jdsample-avx2.asm b/simd/i386/jdsample-avx2.asm
+index a800c35..7d52708 100644
+--- a/simd/i386/jdsample-avx2.asm
++++ b/simd/i386/jdsample-avx2.asm
+@@ -60,6 +60,7 @@ PW_EIGHT times 16 dw 8
+     GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_avx2)
+ 
+ EXTN(jsimd_h2v1_fancy_upsample_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     pushpic     ebx
+@@ -227,6 +228,7 @@ EXTN(jsimd_h2v1_fancy_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_avx2)
+ 
+ EXTN(jsimd_h2v2_fancy_upsample_avx2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+@@ -570,6 +572,7 @@ EXTN(jsimd_h2v2_fancy_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v1_upsample_avx2)
+ 
+ EXTN(jsimd_h2v1_upsample_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+@@ -669,6 +672,7 @@ EXTN(jsimd_h2v1_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_upsample_avx2)
+ 
+ EXTN(jsimd_h2v2_upsample_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jdsample-mmx.asm b/simd/i386/jdsample-mmx.asm
+index 12c49f0..7f2ab40 100644
+--- a/simd/i386/jdsample-mmx.asm
++++ b/simd/i386/jdsample-mmx.asm
+@@ -59,6 +59,7 @@ PW_EIGHT times 4 dw 8
+     GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_mmx)
+ 
+ EXTN(jsimd_h2v1_fancy_upsample_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     pushpic     ebx
+@@ -217,6 +218,7 @@ EXTN(jsimd_h2v1_fancy_upsample_mmx):
+     GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_mmx)
+ 
+ EXTN(jsimd_h2v2_fancy_upsample_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+@@ -541,6 +543,7 @@ EXTN(jsimd_h2v2_fancy_upsample_mmx):
+     GLOBAL_FUNCTION(jsimd_h2v1_upsample_mmx)
+ 
+ EXTN(jsimd_h2v1_upsample_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+@@ -640,6 +643,7 @@ EXTN(jsimd_h2v1_upsample_mmx):
+     GLOBAL_FUNCTION(jsimd_h2v2_upsample_mmx)
+ 
+ EXTN(jsimd_h2v2_upsample_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jdsample-sse2.asm b/simd/i386/jdsample-sse2.asm
+index 4e28d2f..3311b25 100644
+--- a/simd/i386/jdsample-sse2.asm
++++ b/simd/i386/jdsample-sse2.asm
+@@ -59,6 +59,7 @@ PW_EIGHT times 8 dw 8
+     GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_sse2)
+ 
+ EXTN(jsimd_h2v1_fancy_upsample_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     pushpic     ebx
+@@ -216,6 +217,7 @@ EXTN(jsimd_h2v1_fancy_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_sse2)
+ 
+ EXTN(jsimd_h2v2_fancy_upsample_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+@@ -538,6 +540,7 @@ EXTN(jsimd_h2v2_fancy_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v1_upsample_sse2)
+ 
+ EXTN(jsimd_h2v1_upsample_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+@@ -635,6 +638,7 @@ EXTN(jsimd_h2v1_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_upsample_sse2)
+ 
+ EXTN(jsimd_h2v2_upsample_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jfdctflt-3dn.asm b/simd/i386/jfdctflt-3dn.asm
+index 322ab16..109e36e 100644
+--- a/simd/i386/jfdctflt-3dn.asm
++++ b/simd/i386/jfdctflt-3dn.asm
+@@ -56,6 +56,7 @@ PD_1_306 times 2 dd 1.306562964876376527856643
+     GLOBAL_FUNCTION(jsimd_fdct_float_3dnow)
+ 
+ EXTN(jsimd_fdct_float_3dnow):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jfdctflt-sse.asm b/simd/i386/jfdctflt-sse.asm
+index 86952c6..b1e0576 100644
+--- a/simd/i386/jfdctflt-sse.asm
++++ b/simd/i386/jfdctflt-sse.asm
+@@ -67,6 +67,7 @@ PD_1_306 times 4 dd 1.306562964876376527856643
+     GLOBAL_FUNCTION(jsimd_fdct_float_sse)
+ 
+ EXTN(jsimd_fdct_float_sse):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jfdctfst-mmx.asm b/simd/i386/jfdctfst-mmx.asm
+index 80645a5..be84fdb 100644
+--- a/simd/i386/jfdctfst-mmx.asm
++++ b/simd/i386/jfdctfst-mmx.asm
+@@ -81,6 +81,7 @@ PW_F1306 times 4 dw F_1_306 << CONST_SHIFT
+     GLOBAL_FUNCTION(jsimd_fdct_ifast_mmx)
+ 
+ EXTN(jsimd_fdct_ifast_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jfdctfst-sse2.asm b/simd/i386/jfdctfst-sse2.asm
+index 446fa7a..945f9cf 100644
+--- a/simd/i386/jfdctfst-sse2.asm
++++ b/simd/i386/jfdctfst-sse2.asm
+@@ -82,6 +82,7 @@ PW_F1306 times 8 dw F_1_306 << CONST_SHIFT
+     GLOBAL_FUNCTION(jsimd_fdct_ifast_sse2)
+ 
+ EXTN(jsimd_fdct_ifast_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jfdctint-avx2.asm b/simd/i386/jfdctint-avx2.asm
+index 23cf733..56acb63 100644
+--- a/simd/i386/jfdctint-avx2.asm
++++ b/simd/i386/jfdctint-avx2.asm
+@@ -260,6 +260,7 @@ PW_1_NEG1                  times 8  dw  1
+     GLOBAL_FUNCTION(jsimd_fdct_islow_avx2)
+ 
+ EXTN(jsimd_fdct_islow_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     pushpic     ebx
+diff --git a/simd/i386/jfdctint-mmx.asm b/simd/i386/jfdctint-mmx.asm
+index 34a43b9..4d1e773 100644
+--- a/simd/i386/jfdctint-mmx.asm
++++ b/simd/i386/jfdctint-mmx.asm
+@@ -102,6 +102,7 @@ PW_DESCALE_P2X times 4 dw  1 << (PASS1_BITS - 1)
+     GLOBAL_FUNCTION(jsimd_fdct_islow_mmx)
+ 
+ EXTN(jsimd_fdct_islow_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jfdctint-sse2.asm b/simd/i386/jfdctint-sse2.asm
+index 6f8e18c..3954c8f 100644
+--- a/simd/i386/jfdctint-sse2.asm
++++ b/simd/i386/jfdctint-sse2.asm
+@@ -103,6 +103,7 @@ PW_DESCALE_P2X times 8 dw  1 << (PASS1_BITS - 1)
+     GLOBAL_FUNCTION(jsimd_fdct_islow_sse2)
+ 
+ EXTN(jsimd_fdct_islow_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctflt-3dn.asm b/simd/i386/jidctflt-3dn.asm
+index 8795191..eb49902 100644
+--- a/simd/i386/jidctflt-3dn.asm
++++ b/simd/i386/jidctflt-3dn.asm
+@@ -65,6 +65,7 @@ PB_CENTERJSAMP  times 8 db CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_float_3dnow)
+ 
+ EXTN(jsimd_idct_float_3dnow):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctflt-sse.asm b/simd/i386/jidctflt-sse.asm
+index b27ecfd..ffe54f8 100644
+--- a/simd/i386/jidctflt-sse.asm
++++ b/simd/i386/jidctflt-sse.asm
+@@ -75,6 +75,7 @@ PB_CENTERJSAMP times 8 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_float_sse)
+ 
+ EXTN(jsimd_idct_float_sse):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctflt-sse2.asm b/simd/i386/jidctflt-sse2.asm
+index c646eae..fd1fe35 100644
+--- a/simd/i386/jidctflt-sse2.asm
++++ b/simd/i386/jidctflt-sse2.asm
+@@ -75,6 +75,7 @@ PB_CENTERJSAMP  times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_float_sse2)
+ 
+ EXTN(jsimd_idct_float_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctfst-mmx.asm b/simd/i386/jidctfst-mmx.asm
+index 24622d4..00940b8 100644
+--- a/simd/i386/jidctfst-mmx.asm
++++ b/simd/i386/jidctfst-mmx.asm
+@@ -96,6 +96,7 @@ PB_CENTERJSAMP times 8 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_ifast_mmx)
+ 
+ EXTN(jsimd_idct_ifast_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctfst-sse2.asm b/simd/i386/jidctfst-sse2.asm
+index 19704ff..1f4af33 100644
+--- a/simd/i386/jidctfst-sse2.asm
++++ b/simd/i386/jidctfst-sse2.asm
+@@ -94,6 +94,7 @@ PB_CENTERJSAMP times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_ifast_sse2)
+ 
+ EXTN(jsimd_idct_ifast_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctint-avx2.asm b/simd/i386/jidctint-avx2.asm
+index 199c7df..2eb606a 100644
+--- a/simd/i386/jidctint-avx2.asm
++++ b/simd/i386/jidctint-avx2.asm
+@@ -296,6 +296,7 @@ PW_1_NEG1                  times 8  dw  1
+     GLOBAL_FUNCTION(jsimd_idct_islow_avx2)
+ 
+ EXTN(jsimd_idct_islow_avx2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctint-mmx.asm b/simd/i386/jidctint-mmx.asm
+index f15c8d3..2d91b7e 100644
+--- a/simd/i386/jidctint-mmx.asm
++++ b/simd/i386/jidctint-mmx.asm
+@@ -109,6 +109,7 @@ PB_CENTERJSAMP times 8 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_islow_mmx)
+ 
+ EXTN(jsimd_idct_islow_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctint-sse2.asm b/simd/i386/jidctint-sse2.asm
+index 43e3201..804be19 100644
+--- a/simd/i386/jidctint-sse2.asm
++++ b/simd/i386/jidctint-sse2.asm
+@@ -107,6 +107,7 @@ PB_CENTERJSAMP times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_islow_sse2)
+ 
+ EXTN(jsimd_idct_islow_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+diff --git a/simd/i386/jidctred-mmx.asm b/simd/i386/jidctred-mmx.asm
+index e2307e1..cb43106 100644
+--- a/simd/i386/jidctred-mmx.asm
++++ b/simd/i386/jidctred-mmx.asm
+@@ -117,6 +117,7 @@ PB_CENTERJSAMP  times 8 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_4x4_mmx)
+ 
+ EXTN(jsimd_idct_4x4_mmx):
++    _endbr32
+     push        ebp
+     mov         eax, esp                    ; eax = original ebp
+     sub         esp, byte 4
+@@ -504,6 +505,7 @@ EXTN(jsimd_idct_4x4_mmx):
+     GLOBAL_FUNCTION(jsimd_idct_2x2_mmx)
+ 
+ EXTN(jsimd_idct_2x2_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jidctred-sse2.asm b/simd/i386/jidctred-sse2.asm
+index 6e56494..2a61b9e 100644
+--- a/simd/i386/jidctred-sse2.asm
++++ b/simd/i386/jidctred-sse2.asm
+@@ -115,6 +115,7 @@ PB_CENTERJSAMP  times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_4x4_sse2)
+ 
+ EXTN(jsimd_idct_4x4_sse2):
++    _endbr32
+     push        ebp
+     mov         eax, esp                     ; eax = original ebp
+     sub         esp, byte 4
+@@ -425,6 +426,7 @@ EXTN(jsimd_idct_4x4_sse2):
+     GLOBAL_FUNCTION(jsimd_idct_2x2_sse2)
+ 
+ EXTN(jsimd_idct_2x2_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+diff --git a/simd/i386/jquant-3dn.asm b/simd/i386/jquant-3dn.asm
+index 5cb60ca..a0599eb 100644
+--- a/simd/i386/jquant-3dn.asm
++++ b/simd/i386/jquant-3dn.asm
+@@ -36,6 +36,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_float_3dnow)
+ 
+ EXTN(jsimd_convsamp_float_3dnow):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+@@ -138,6 +139,7 @@ EXTN(jsimd_convsamp_float_3dnow):
+     GLOBAL_FUNCTION(jsimd_quantize_float_3dnow)
+ 
+ EXTN(jsimd_quantize_float_3dnow):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jquant-mmx.asm b/simd/i386/jquant-mmx.asm
+index 61305c6..080021b 100644
+--- a/simd/i386/jquant-mmx.asm
++++ b/simd/i386/jquant-mmx.asm
+@@ -36,6 +36,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_mmx)
+ 
+ EXTN(jsimd_convsamp_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+@@ -145,6 +146,7 @@ EXTN(jsimd_convsamp_mmx):
+     GLOBAL_FUNCTION(jsimd_quantize_mmx)
+ 
+ EXTN(jsimd_quantize_mmx):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jquant-sse.asm b/simd/i386/jquant-sse.asm
+index 218adc9..cacd2a9 100644
+--- a/simd/i386/jquant-sse.asm
++++ b/simd/i386/jquant-sse.asm
+@@ -36,6 +36,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_float_sse)
+ 
+ EXTN(jsimd_convsamp_float_sse):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+@@ -138,6 +139,7 @@ EXTN(jsimd_convsamp_float_sse):
+     GLOBAL_FUNCTION(jsimd_quantize_float_sse)
+ 
+ EXTN(jsimd_quantize_float_sse):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jquantf-sse2.asm b/simd/i386/jquantf-sse2.asm
+index a881ab5..6f4789c 100644
+--- a/simd/i386/jquantf-sse2.asm
++++ b/simd/i386/jquantf-sse2.asm
+@@ -36,6 +36,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_float_sse2)
+ 
+ EXTN(jsimd_convsamp_float_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+@@ -115,6 +116,7 @@ EXTN(jsimd_convsamp_float_sse2):
+     GLOBAL_FUNCTION(jsimd_quantize_float_sse2)
+ 
+ EXTN(jsimd_quantize_float_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jquanti-avx2.asm b/simd/i386/jquanti-avx2.asm
+index 5ed6bec..efcddd2 100644
+--- a/simd/i386/jquanti-avx2.asm
++++ b/simd/i386/jquanti-avx2.asm
+@@ -37,6 +37,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_avx2)
+ 
+ EXTN(jsimd_convsamp_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+@@ -130,6 +131,7 @@ EXTN(jsimd_convsamp_avx2):
+     GLOBAL_FUNCTION(jsimd_quantize_avx2)
+ 
+ EXTN(jsimd_quantize_avx2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/i386/jquanti-sse2.asm b/simd/i386/jquanti-sse2.asm
+index 0a50940..98d39e0 100644
+--- a/simd/i386/jquanti-sse2.asm
++++ b/simd/i386/jquanti-sse2.asm
+@@ -36,6 +36,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_sse2)
+ 
+ EXTN(jsimd_convsamp_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+     push        ebx
+@@ -121,6 +122,7 @@ EXTN(jsimd_convsamp_sse2):
+     GLOBAL_FUNCTION(jsimd_quantize_sse2)
+ 
+ EXTN(jsimd_quantize_sse2):
++    _endbr32
+     push        ebp
+     mov         ebp, esp
+ ;   push        ebx                     ; unused
+diff --git a/simd/nasm/jsimdext.inc b/simd/nasm/jsimdext.inc
+index e8d50b0..f140d4d 100644
+--- a/simd/nasm/jsimdext.inc
++++ b/simd/nasm/jsimdext.inc
+@@ -512,6 +512,14 @@ const_base:
+ 
+ %endif
+ 
++%imacro _endbr32 0
++    dd 0xfb1e0ff3
++%endmacro
++
++%imacro _endbr64 0
++    dd 0xfa1e0ff3
++%endmacro
++
+ ; --------------------------------------------------------------------------
+ ;  Defines picked up from the C headers
+ ;
+diff --git a/simd/x86_64/jccolext-avx2.asm b/simd/x86_64/jccolext-avx2.asm
+index ffb527d..5c01670 100644
+--- a/simd/x86_64/jccolext-avx2.asm
++++ b/simd/x86_64/jccolext-avx2.asm
+@@ -40,6 +40,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_ycc_convert_avx2)
+ 
+ EXTN(jsimd_rgb_ycc_convert_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jccolext-sse2.asm b/simd/x86_64/jccolext-sse2.asm
+index af70ed6..99c1889 100644
+--- a/simd/x86_64/jccolext-sse2.asm
++++ b/simd/x86_64/jccolext-sse2.asm
+@@ -39,6 +39,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_ycc_convert_sse2)
+ 
+ EXTN(jsimd_rgb_ycc_convert_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jcgryext-avx2.asm b/simd/x86_64/jcgryext-avx2.asm
+index ddcc2c0..a5b9619 100644
+--- a/simd/x86_64/jcgryext-avx2.asm
++++ b/simd/x86_64/jcgryext-avx2.asm
+@@ -40,6 +40,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_gray_convert_avx2)
+ 
+ EXTN(jsimd_rgb_gray_convert_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jcgryext-sse2.asm b/simd/x86_64/jcgryext-sse2.asm
+index f1d399a..550fc2f 100644
+--- a/simd/x86_64/jcgryext-sse2.asm
++++ b/simd/x86_64/jcgryext-sse2.asm
+@@ -39,6 +39,7 @@
+     GLOBAL_FUNCTION(jsimd_rgb_gray_convert_sse2)
+ 
+ EXTN(jsimd_rgb_gray_convert_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jchuff-sse2.asm b/simd/x86_64/jchuff-sse2.asm
+index 0072028..1770a84 100644
+--- a/simd/x86_64/jchuff-sse2.asm
++++ b/simd/x86_64/jchuff-sse2.asm
+@@ -258,6 +258,7 @@ times 1 << 14 db 15
+     GLOBAL_FUNCTION(jsimd_huff_encode_one_block_sse2)
+ 
+ EXTN(jsimd_huff_encode_one_block_sse2):
++    _endbr64
+ 
+ %ifdef WIN64
+ 
+diff --git a/simd/x86_64/jcphuff-sse2.asm b/simd/x86_64/jcphuff-sse2.asm
+index 8ed4472..f316b27 100644
+--- a/simd/x86_64/jcphuff-sse2.asm
++++ b/simd/x86_64/jcphuff-sse2.asm
+@@ -281,6 +281,7 @@
+     GLOBAL_FUNCTION(jsimd_encode_mcu_AC_first_prepare_sse2)
+ 
+ EXTN(jsimd_encode_mcu_AC_first_prepare_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+@@ -449,6 +450,7 @@ EXTN(jsimd_encode_mcu_AC_first_prepare_sse2):
+     GLOBAL_FUNCTION(jsimd_encode_mcu_AC_refine_prepare_sse2)
+ 
+ EXTN(jsimd_encode_mcu_AC_refine_prepare_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jcsample-avx2.asm b/simd/x86_64/jcsample-avx2.asm
+index b32527a..28bf70a 100644
+--- a/simd/x86_64/jcsample-avx2.asm
++++ b/simd/x86_64/jcsample-avx2.asm
+@@ -44,6 +44,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_downsample_avx2)
+ 
+ EXTN(jsimd_h2v1_downsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -206,6 +207,7 @@ EXTN(jsimd_h2v1_downsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_downsample_avx2)
+ 
+ EXTN(jsimd_h2v2_downsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jcsample-sse2.asm b/simd/x86_64/jcsample-sse2.asm
+index 2fcfe45..2093090 100644
+--- a/simd/x86_64/jcsample-sse2.asm
++++ b/simd/x86_64/jcsample-sse2.asm
+@@ -43,6 +43,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_downsample_sse2)
+ 
+ EXTN(jsimd_h2v1_downsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -188,6 +189,7 @@ EXTN(jsimd_h2v1_downsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_downsample_sse2)
+ 
+ EXTN(jsimd_h2v2_downsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jdcolext-avx2.asm b/simd/x86_64/jdcolext-avx2.asm
+index 2370fda..406fc01 100644
+--- a/simd/x86_64/jdcolext-avx2.asm
++++ b/simd/x86_64/jdcolext-avx2.asm
+@@ -41,6 +41,7 @@
+     GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_avx2)
+ 
+ EXTN(jsimd_ycc_rgb_convert_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jdcolext-sse2.asm b/simd/x86_64/jdcolext-sse2.asm
+index e07c8d7..84acb50 100644
+--- a/simd/x86_64/jdcolext-sse2.asm
++++ b/simd/x86_64/jdcolext-sse2.asm
+@@ -40,6 +40,7 @@
+     GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_sse2)
+ 
+ EXTN(jsimd_ycc_rgb_convert_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jdmrgext-avx2.asm b/simd/x86_64/jdmrgext-avx2.asm
+index 8b264b4..c42f395 100644
+--- a/simd/x86_64/jdmrgext-avx2.asm
++++ b/simd/x86_64/jdmrgext-avx2.asm
+@@ -41,6 +41,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_merged_upsample_avx2)
+ 
+ EXTN(jsimd_h2v1_merged_upsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+@@ -505,6 +506,7 @@ EXTN(jsimd_h2v1_merged_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_merged_upsample_avx2)
+ 
+ EXTN(jsimd_h2v2_merged_upsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jdmrgext-sse2.asm b/simd/x86_64/jdmrgext-sse2.asm
+index eb3ab9d..8347620 100644
+--- a/simd/x86_64/jdmrgext-sse2.asm
++++ b/simd/x86_64/jdmrgext-sse2.asm
+@@ -40,6 +40,7 @@
+     GLOBAL_FUNCTION(jsimd_h2v1_merged_upsample_sse2)
+ 
+ EXTN(jsimd_h2v1_merged_upsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+@@ -447,6 +448,7 @@ EXTN(jsimd_h2v1_merged_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_merged_upsample_sse2)
+ 
+ EXTN(jsimd_h2v2_merged_upsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jdsample-avx2.asm b/simd/x86_64/jdsample-avx2.asm
+index 1e4979f..b80d607 100644
+--- a/simd/x86_64/jdsample-avx2.asm
++++ b/simd/x86_64/jdsample-avx2.asm
+@@ -61,6 +61,7 @@ PW_EIGHT times 16 dw 8
+     GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_avx2)
+ 
+ EXTN(jsimd_h2v1_fancy_upsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -215,6 +216,7 @@ EXTN(jsimd_h2v1_fancy_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_avx2)
+ 
+ EXTN(jsimd_h2v2_fancy_upsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+@@ -524,6 +526,7 @@ EXTN(jsimd_h2v2_fancy_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v1_upsample_avx2)
+ 
+ EXTN(jsimd_h2v1_upsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -613,6 +616,7 @@ EXTN(jsimd_h2v1_upsample_avx2):
+     GLOBAL_FUNCTION(jsimd_h2v2_upsample_avx2)
+ 
+ EXTN(jsimd_h2v2_upsample_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jdsample-sse2.asm b/simd/x86_64/jdsample-sse2.asm
+index 38dbcee..6a1e012 100644
+--- a/simd/x86_64/jdsample-sse2.asm
++++ b/simd/x86_64/jdsample-sse2.asm
+@@ -60,6 +60,7 @@ PW_EIGHT times 8 dw 8
+     GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_sse2)
+ 
+ EXTN(jsimd_h2v1_fancy_upsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -202,6 +203,7 @@ EXTN(jsimd_h2v1_fancy_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_sse2)
+ 
+ EXTN(jsimd_h2v2_fancy_upsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+@@ -497,6 +499,7 @@ EXTN(jsimd_h2v2_fancy_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v1_upsample_sse2)
+ 
+ EXTN(jsimd_h2v1_upsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -584,6 +587,7 @@ EXTN(jsimd_h2v1_upsample_sse2):
+     GLOBAL_FUNCTION(jsimd_h2v2_upsample_sse2)
+ 
+ EXTN(jsimd_h2v2_upsample_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jfdctflt-sse.asm b/simd/x86_64/jfdctflt-sse.asm
+index ef27966..90d06eb 100644
+--- a/simd/x86_64/jfdctflt-sse.asm
++++ b/simd/x86_64/jfdctflt-sse.asm
+@@ -65,6 +65,7 @@ PD_1_306 times 4 dd 1.306562964876376527856643
+     GLOBAL_FUNCTION(jsimd_fdct_float_sse)
+ 
+ EXTN(jsimd_fdct_float_sse):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jfdctfst-sse2.asm b/simd/x86_64/jfdctfst-sse2.asm
+index 2e1bfe6..5a74aaf 100644
+--- a/simd/x86_64/jfdctfst-sse2.asm
++++ b/simd/x86_64/jfdctfst-sse2.asm
+@@ -80,6 +80,7 @@ PW_F1306 times 8 dw F_1_306 << CONST_SHIFT
+     GLOBAL_FUNCTION(jsimd_fdct_ifast_sse2)
+ 
+ EXTN(jsimd_fdct_ifast_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jfdctint-avx2.asm b/simd/x86_64/jfdctint-avx2.asm
+index e56258b..2ac6d4f 100644
+--- a/simd/x86_64/jfdctint-avx2.asm
++++ b/simd/x86_64/jfdctint-avx2.asm
+@@ -260,6 +260,7 @@ PW_1_NEG1                  times 8  dw  1
+     GLOBAL_FUNCTION(jsimd_fdct_islow_avx2)
+ 
+ EXTN(jsimd_fdct_islow_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jfdctint-sse2.asm b/simd/x86_64/jfdctint-sse2.asm
+index ec1f383..0950825 100644
+--- a/simd/x86_64/jfdctint-sse2.asm
++++ b/simd/x86_64/jfdctint-sse2.asm
+@@ -101,6 +101,7 @@ PW_DESCALE_P2X times 8 dw  1 << (PASS1_BITS - 1)
+     GLOBAL_FUNCTION(jsimd_fdct_islow_sse2)
+ 
+ EXTN(jsimd_fdct_islow_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jidctflt-sse2.asm b/simd/x86_64/jidctflt-sse2.asm
+index 60bf961..f04902a 100644
+--- a/simd/x86_64/jidctflt-sse2.asm
++++ b/simd/x86_64/jidctflt-sse2.asm
+@@ -76,6 +76,7 @@ PB_CENTERJSAMP  times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_float_sse2)
+ 
+ EXTN(jsimd_idct_float_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jidctfst-sse2.asm b/simd/x86_64/jidctfst-sse2.asm
+index cb97fdf..d004da9 100644
+--- a/simd/x86_64/jidctfst-sse2.asm
++++ b/simd/x86_64/jidctfst-sse2.asm
+@@ -95,6 +95,7 @@ PB_CENTERJSAMP times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_ifast_sse2)
+ 
+ EXTN(jsimd_idct_ifast_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jidctint-avx2.asm b/simd/x86_64/jidctint-avx2.asm
+index ca7e317..5c65fa7 100644
+--- a/simd/x86_64/jidctint-avx2.asm
++++ b/simd/x86_64/jidctint-avx2.asm
+@@ -282,6 +282,7 @@ PW_1_NEG1                  times 8  dw  1
+     GLOBAL_FUNCTION(jsimd_idct_islow_avx2)
+ 
+ EXTN(jsimd_idct_islow_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     mov         rbp, rsp                     ; rbp = aligned rbp
+diff --git a/simd/x86_64/jidctint-sse2.asm b/simd/x86_64/jidctint-sse2.asm
+index 7aa869b..a428c9e 100644
+--- a/simd/x86_64/jidctint-sse2.asm
++++ b/simd/x86_64/jidctint-sse2.asm
+@@ -108,6 +108,7 @@ PB_CENTERJSAMP times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_islow_sse2)
+ 
+ EXTN(jsimd_idct_islow_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+diff --git a/simd/x86_64/jidctred-sse2.asm b/simd/x86_64/jidctred-sse2.asm
+index 4ece9d8..5fac624 100644
+--- a/simd/x86_64/jidctred-sse2.asm
++++ b/simd/x86_64/jidctred-sse2.asm
+@@ -116,6 +116,7 @@ PB_CENTERJSAMP  times 16 db  CENTERJSAMPLE
+     GLOBAL_FUNCTION(jsimd_idct_4x4_sse2)
+ 
+ EXTN(jsimd_idct_4x4_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp                     ; rax = original rbp
+     sub         rsp, byte 4
+@@ -414,6 +415,7 @@ EXTN(jsimd_idct_4x4_sse2):
+     GLOBAL_FUNCTION(jsimd_idct_2x2_sse2)
+ 
+ EXTN(jsimd_idct_2x2_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jquantf-sse2.asm b/simd/x86_64/jquantf-sse2.asm
+index ab2e395..a260e32 100644
+--- a/simd/x86_64/jquantf-sse2.asm
++++ b/simd/x86_64/jquantf-sse2.asm
+@@ -37,6 +37,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_float_sse2)
+ 
+ EXTN(jsimd_convsamp_float_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -110,6 +111,7 @@ EXTN(jsimd_convsamp_float_sse2):
+     GLOBAL_FUNCTION(jsimd_quantize_float_sse2)
+ 
+ EXTN(jsimd_quantize_float_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jquanti-avx2.asm b/simd/x86_64/jquanti-avx2.asm
+index 70fe811..c48c73f 100644
+--- a/simd/x86_64/jquanti-avx2.asm
++++ b/simd/x86_64/jquanti-avx2.asm
+@@ -38,6 +38,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_avx2)
+ 
+ EXTN(jsimd_convsamp_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -116,6 +117,7 @@ EXTN(jsimd_convsamp_avx2):
+     GLOBAL_FUNCTION(jsimd_quantize_avx2)
+ 
+ EXTN(jsimd_quantize_avx2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+diff --git a/simd/x86_64/jquanti-sse2.asm b/simd/x86_64/jquanti-sse2.asm
+index 3ee4420..fb1b4ae 100644
+--- a/simd/x86_64/jquanti-sse2.asm
++++ b/simd/x86_64/jquanti-sse2.asm
+@@ -37,6 +37,7 @@
+     GLOBAL_FUNCTION(jsimd_convsamp_sse2)
+ 
+ EXTN(jsimd_convsamp_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+@@ -116,6 +117,7 @@ EXTN(jsimd_convsamp_sse2):
+     GLOBAL_FUNCTION(jsimd_quantize_sse2)
+ 
+ EXTN(jsimd_quantize_sse2):
++    _endbr64
+     push        rbp
+     mov         rax, rsp
+     mov         rbp, rsp
+-- 
+2.26.2
+