Update contrib/restricted/boost/context to 1.87.0

commit_hash:9a410907c80c2195a53579cb7946b3ffaa07d579

63 files changed, 549 insertions, 51 deletions

diff --git a/contrib/restricted/boost/context/.yandex_meta/devtools.copyrights.report b/contrib/restricted/boost/context/.yandex_meta/devtools.copyrights.report
index bc3f7ce474..32f11fe362 100644
--- a/contrib/restricted/boost/context/.yandex_meta/devtools.copyrights.report
+++ b/contrib/restricted/boost/context/.yandex_meta/devtools.copyrights.report
@@ -47,12 +47,15 @@ BELONGS ya.make
         src/asm/jump_arm64_aapcs_elf_gas.S [2:4]
         src/asm/jump_arm64_aapcs_macho_gas.S [2:4]
         src/asm/jump_arm64_aapcs_pe_armasm.masm [1:3]
+        src/asm/jump_arm64_aapcs_pe_armclang.S [2:4]
         src/asm/make_arm64_aapcs_elf_gas.S [2:4]
         src/asm/make_arm64_aapcs_macho_gas.S [2:4]
         src/asm/make_arm64_aapcs_pe_armasm.masm [1:3]
+        src/asm/make_arm64_aapcs_pe_armclang.S [2:4]
         src/asm/ontop_arm64_aapcs_elf_gas.S [2:4]
         src/asm/ontop_arm64_aapcs_macho_gas.S [2:4]
         src/asm/ontop_arm64_aapcs_pe_armasm.masm [1:3]
+        src/asm/ontop_arm64_aapcs_pe_armclang.S [2:4]
 
 KEEP     COPYRIGHT_SERVICE_LABEL 48ce97ba62fc10cee11a213ab0560d6d
 BELONGS ya.make
@@ -144,6 +147,16 @@ BELONGS ya.make
         src/asm/tail_ontop_ppc32_sysv.cpp [2:4]
         src/untested.cpp [2:4]
 
+KEEP     COPYRIGHT_SERVICE_LABEL 9ed7b7468c684d33492a4176e9cf31b1
+BELONGS ya.make
+    Note: matched license text is too long. Read it in the source files.
+    Scancode info:
+        Original SPDX id: COPYRIGHT_SERVICE_LABEL
+        Score           : 100.00
+        Match type      : COPYRIGHT
+    Files with this license:
+        src/fcontext.cpp [1:3]
+
 KEEP     COPYRIGHT_SERVICE_LABEL b56e68f168b25ead2610488b3af94842
 BELONGS ya.make
     License text:
diff --git a/contrib/restricted/boost/context/.yandex_meta/devtools.licenses.report b/contrib/restricted/boost/context/.yandex_meta/devtools.licenses.report
index 2f7dd7780d..92e42b3404 100644
--- a/contrib/restricted/boost/context/.yandex_meta/devtools.licenses.report
+++ b/contrib/restricted/boost/context/.yandex_meta/devtools.licenses.report
@@ -68,6 +68,22 @@ BELONGS ya.make
         src/asm/make_arm_aapcs_pe_armasm.masm [3:5]
         src/asm/ontop_arm_aapcs_pe_armasm.masm [3:5]
 
+KEEP     BSL-1.0              321a164a9126e96f909fc36bc3ae6dda
+BELONGS ya.make
+    License text:
+          Distributed under the Boost Software License, Version 1.0.
+             (See accompanying file LICENSE_1_0.txt or copy at
+                 http://www.boost.org/LICENSE_1_0.txt)
+    Scancode info:
+        Original SPDX id: BSL-1.0
+        Score           : 100.00
+        Match type      : NOTICE
+        Links           : http://www.boost.org/LICENSE_1_0.txt, http://www.boost.org/users/license.html, https://spdx.org/licenses/BSL-1.0
+    Files with this license:
+        src/asm/jump_arm64_aapcs_pe_armclang.S [3:5]
+        src/asm/make_arm64_aapcs_pe_armclang.S [3:5]
+        src/asm/ontop_arm64_aapcs_pe_armclang.S [3:5]
+
 KEEP     BSL-1.0              45dafc5af311668ee8f059b952891651
 BELONGS ya.make
     License text:
@@ -127,6 +143,7 @@ BELONGS ya.make
         include/boost/context/stack_traits.hpp [3:5]
         include/boost/context/windows/protected_fixedsize_stack.hpp [3:5]
         src/continuation.cpp [3:5]
+        src/fcontext.cpp [2:4]
         src/fiber.cpp [3:5]
         src/posix/stack_traits.cpp [3:5]
         src/untested.cpp [3:5]
diff --git a/contrib/restricted/boost/context/.yandex_meta/licenses.list.txt b/contrib/restricted/boost/context/.yandex_meta/licenses.list.txt
index 6b4897d488..7ab7afd143 100644
--- a/contrib/restricted/boost/context/.yandex_meta/licenses.list.txt
+++ b/contrib/restricted/boost/context/.yandex_meta/licenses.list.txt
@@ -17,6 +17,12 @@
 
 
 ====================BSL-1.0====================
+  Distributed under the Boost Software License, Version 1.0.
+     (See accompanying file LICENSE_1_0.txt or copy at
+         http://www.boost.org/LICENSE_1_0.txt)
+
+
+====================BSL-1.0====================
 // Distributed under the Boost Software License, Version 1.0.
 //    (See accompanying file LICENSE_1_0.txt or copy at
 //          http://www.boost.org/LICENSE_1_0.txt)
@@ -93,3 +99,9 @@
 //          Copyright Oliver Kowalke 2017.
 // Distributed under the Boost Software License, Version 1.0.
 //    (See accompanying file LICENSE_1_0.txt or copy at
+
+
+====================COPYRIGHT====================
+// SPDX-FileCopyrightText: Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
diff --git a/contrib/restricted/boost/context/fcontext_impl/ya.make b/contrib/restricted/boost/context/fcontext_impl/ya.make
index 830a53b844..fc4f78a0e4 100644
--- a/contrib/restricted/boost/context/fcontext_impl/ya.make
+++ b/contrib/restricted/boost/context/fcontext_impl/ya.make
@@ -4,9 +4,9 @@ LIBRARY()
 
 WITHOUT_LICENSE_TEXTS()
 
-VERSION(1.86.0)
+VERSION(1.87.0)
 
-ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.86.0.tar.gz)
+ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.87.0.tar.gz)
 
 LICENSE(BSL-1.0)
 
@@ -70,6 +70,7 @@ SRCS(
     asm/jump_${BOOST_CONTEXT_ASM_SUFFIX}
     asm/make_${BOOST_CONTEXT_ASM_SUFFIX}
     asm/ontop_${BOOST_CONTEXT_ASM_SUFFIX}
+    fcontext.cpp
 )
 
 END()
diff --git a/contrib/restricted/boost/context/impl_common/ya.make b/contrib/restricted/boost/context/impl_common/ya.make
index 61f7516118..3a9a118a9c 100644
--- a/contrib/restricted/boost/context/impl_common/ya.make
+++ b/contrib/restricted/boost/context/impl_common/ya.make
@@ -4,9 +4,9 @@ LIBRARY()
 
 WITHOUT_LICENSE_TEXTS()
 
-VERSION(1.86.0)
+VERSION(1.87.0)
 
-ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.86.0.tar.gz)
+ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.87.0.tar.gz)
 
 LICENSE(BSL-1.0)
 
diff --git a/contrib/restricted/boost/context/include/boost/context/detail/fcontext.hpp b/contrib/restricted/boost/context/include/boost/context/detail/fcontext.hpp
index 00cb24d941..52be6083af 100644
--- a/contrib/restricted/boost/context/include/boost/context/detail/fcontext.hpp
+++ b/contrib/restricted/boost/context/include/boost/context/detail/fcontext.hpp
@@ -27,14 +27,11 @@ struct transfer_t {
     void    *   data;
 };
 
-extern "C" BOOST_CONTEXT_DECL
-transfer_t BOOST_CONTEXT_CALLDECL jump_fcontext( fcontext_t const to, void * vp);
-extern "C" BOOST_CONTEXT_DECL
-fcontext_t BOOST_CONTEXT_CALLDECL make_fcontext( void * sp, std::size_t size, void (* fn)( transfer_t) );
+BOOST_CONTEXT_DECL transfer_t jump_fcontext( fcontext_t const to, void * vp);
+BOOST_CONTEXT_DECL fcontext_t make_fcontext( void * sp, std::size_t size, void (* fn)( transfer_t) );
 
 // based on an idea of Giovanni Derreta
-extern "C" BOOST_CONTEXT_DECL
-transfer_t BOOST_CONTEXT_CALLDECL ontop_fcontext( fcontext_t const to, void * vp, transfer_t (* fn)( transfer_t) );
+BOOST_CONTEXT_DECL transfer_t ontop_fcontext( fcontext_t const to, void * vp, transfer_t (* fn)( transfer_t) );
 
 }}}
 
diff --git a/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_elf_gas.S
index cefd1830d7..7c1f075355 100644
--- a/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_elf_gas.S
@@ -55,6 +55,7 @@
 .text
 .align  2
 .global jump_fcontext
+.hidden jump_fcontext
 .type   jump_fcontext, %function
 jump_fcontext:
     # prepare stack for GP + FPU
diff --git a/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_macho_gas.S b/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_macho_gas.S
index 31738f7453..12cc021586 100644
--- a/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_macho_gas.S
@@ -52,6 +52,7 @@
  *******************************************************/
 
 .text
+.private_extern _jump_fcontext
 .globl _jump_fcontext
 .balign 16
 _jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_pe_armclang.S b/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_pe_armclang.S
new file mode 100644
index 0000000000..0ad7ac1f8f
--- /dev/null
+++ b/contrib/restricted/boost/context/src/asm/jump_arm64_aapcs_pe_armclang.S
@@ -0,0 +1,141 @@
+/*
+      Copyright Edward Nevill + Oliver Kowalke 2015
+  Distributed under the Boost Software License, Version 1.0.
+     (See accompanying file LICENSE_1_0.txt or copy at
+         http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/******************************************************
+*                                                     *
+*  -------------------------------------------------  *
+*  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
+*  -------------------------------------------------  *
+*  | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c|  *
+*  -------------------------------------------------  *
+*  |    d8     |    d9     |    d10    |    d11    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
+*  -------------------------------------------------  *
+*  | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c|  *
+*  -------------------------------------------------  *
+*  |    d12    |    d13    |    d14    |    d15    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
+*  -------------------------------------------------  *
+*  | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c|  *
+*  -------------------------------------------------  *
+*  |    x19    |    x20    |    x21    |    x22    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
+*  -------------------------------------------------  *
+*  | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c|  *
+*  -------------------------------------------------  *
+*  |    x23    |    x24    |    x25    |    x26    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
+*  -------------------------------------------------  *
+*  | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c|  *
+*  -------------------------------------------------  *
+*  |    x27    |    x28    |    FP     |     LR    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
+*  -------------------------------------------------  *
+*  | 0xa0| 0xa4| 0xa8| 0xac| 0xb0| 0xb4| 0xb8| 0xbc|  *
+*  -------------------------------------------------  *
+*  | fiber data|   base    |   limit   |  dealloc  |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  48 |  49 |  50 | 51  |           |           |  *
+*  -------------------------------------------------  *
+*  | 0xc0| 0xc4| 0xc8| 0xcc|           |           |  *
+*  -------------------------------------------------  *
+*  |     PC    |   align   |           |           |  *
+*  -------------------------------------------------  *
+*                                                     *
+*******************************************************/
+
+.file	"jump_arm64_aapcs_pe_armclang.S"
+.text
+.balign 4
+
+.def	jump_fcontext;	.scl	2;	.type	32;	.endef
+.seh_proc	jump_fcontext
+jump_fcontext:
+.seh_endprologue
+    // prepare stack for GP + FPU
+    sub  sp, sp, #0xd0
+
+    // save d8 - d15
+    stp  d8,  d9,  [sp, #0x00]
+    stp  d10, d11, [sp, #0x10]
+    stp  d12, d13, [sp, #0x20]
+    stp  d14, d15, [sp, #0x30]
+
+    // save x19-x30
+    stp  x19, x20, [sp, #0x40]
+    stp  x21, x22, [sp, #0x50]
+    stp  x23, x24, [sp, #0x60]
+    stp  x25, x26, [sp, #0x70]
+    stp  x27, x28, [sp, #0x80]
+    stp  x29, x30, [sp, #0x90]
+
+    // save LR as PC
+    str  x30, [sp, #0xc0]
+
+    // save current stack base and limit
+    ldp  x5,  x6,  [x18, #0x08] // TeStackBase and TeStackLimit at ksarm64.h
+    stp  x5,  x6,  [sp, #0xa0]
+    // save current fiber data and deallocation stack
+    ldr  x5, [x18, #0x1478] // TeDeallocationStack at ksarm64.h
+    ldr  x6, [x18, #0x20] // TeFiberData at ksarm64.h
+    stp  x5,  x6,  [sp, #0xb0]
+
+    // store RSP (pointing to context-data) in X0
+    mov  x4, sp
+
+    // restore RSP (pointing to context-data) from X1
+    mov  sp, x0
+
+    // restore stack base and limit
+    ldp  x5,  x6,  [sp, #0xa0]
+    stp  x5,  x6,  [x18, #0x08] // TeStackBase and TeStackLimit at ksarm64.h
+    // restore fiber data and deallocation stack
+    ldp  x5,  x6,  [sp, #0xb0]
+    str  x5, [x18, #0x1478] // TeDeallocationStack at ksarm64.h
+    str  x6, [x18, #0x20] // TeFiberData at ksarm64.h
+
+    // load d8 - d15
+    ldp  d8,  d9,  [sp, #0x00]
+    ldp  d10, d11, [sp, #0x10]
+    ldp  d12, d13, [sp, #0x20]
+    ldp  d14, d15, [sp, #0x30]
+
+    // load x19-x30
+    ldp  x19, x20, [sp, #0x40]
+    ldp  x21, x22, [sp, #0x50]
+    ldp  x23, x24, [sp, #0x60]
+    ldp  x25, x26, [sp, #0x70]
+    ldp  x27, x28, [sp, #0x80]
+    ldp  x29, x30, [sp, #0x90]
+
+    // return transfer_t from jump
+    // pass transfer_t as first arg in context function
+    // X0 == FCTX, X1 == DATA
+    mov x0, x4
+
+    // load pc
+    ldr  x4, [sp, #0xc0]
+
+    // restore stack from GP + FPU
+    add  sp, sp, #0xd0
+
+    ret x4
+.seh_endproc
+
+.section .drectve
+.ascii " -export:\"jump_fcontext\""
diff --git a/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_elf_gas.S
index 86efe9d821..9934c0897c 100644
--- a/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_elf_gas.S
@@ -41,6 +41,7 @@
 .file "jump_arm_aapcs_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .align 2
 .type jump_fcontext,%function
 .syntax unified
diff --git a/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_macho_gas.S b/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_macho_gas.S
index 077c36409e..44e7f2a422 100644
--- a/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_arm_aapcs_macho_gas.S
@@ -39,6 +39,7 @@
  *******************************************************/
 
 .text
+.private_extern _jump_fcontext
 .globl _jump_fcontext
 .align 2
 _jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_i386_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_i386_sysv_elf_gas.S
index ed83717ce2..d00ac4fffd 100644
--- a/contrib/restricted/boost/context/src/asm/jump_i386_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_i386_sysv_elf_gas.S
@@ -31,6 +31,7 @@
 .file "jump_i386_sysv_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .align 2
 .type jump_fcontext,@function
 jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_i386_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/jump_i386_sysv_macho_gas.S
index 8ab7c6f29c..12aa702be9 100644
--- a/contrib/restricted/boost/context/src/asm/jump_i386_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_i386_sysv_macho_gas.S
@@ -25,6 +25,7 @@
  ****************************************************************************************/
 
 .text
+.private_extern _jump_fcontext
 .globl _jump_fcontext
 .align 2
 _jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_loongarch64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_loongarch64_sysv_elf_gas.S
index 74c081e07f..6f99e719ec 100644
--- a/contrib/restricted/boost/context/src/asm/jump_loongarch64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_loongarch64_sysv_elf_gas.S
@@ -41,6 +41,7 @@
 .file "jump_loongarch64_sysv_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .align 2
 .type jump_fcontext,@function
 jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_mips32_o32_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_mips32_o32_elf_gas.S
index f2b8034d8c..df0676b604 100644
--- a/contrib/restricted/boost/context/src/asm/jump_mips32_o32_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_mips32_o32_elf_gas.S
@@ -41,6 +41,7 @@
 .file "jump_mips32_o32_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .align 2
 .type jump_fcontext,@function
 .ent jump_fcontext
diff --git a/contrib/restricted/boost/context/src/asm/jump_mips64_n64_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_mips64_n64_elf_gas.S
index e338912bb6..60027fe617 100644
--- a/contrib/restricted/boost/context/src/asm/jump_mips64_n64_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_mips64_n64_elf_gas.S
@@ -48,6 +48,7 @@
 .file "jump_mips64_n64_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .align 3
 .type jump_fcontext,@function
 .ent jump_fcontext
diff --git a/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_elf_gas.S
index 48e09c935e..e313366400 100644
--- a/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_elf_gas.S
@@ -53,6 +53,7 @@
 .file "jump_ppc32_sysv_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .align 2
 .type jump_fcontext,@function
 jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_macho_gas.S
index fef90c295f..10e6113639 100644
--- a/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_ppc32_sysv_macho_gas.S
@@ -74,6 +74,7 @@
  *******************************************************/
 
 .text
+.private_extern _jump_fcontext
 .globl _jump_fcontext
 .align 2
 _jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_elf_gas.S
index 28907db32b..fc3c6d63dc 100644
--- a/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_elf_gas.S
@@ -68,6 +68,7 @@
 
 .file "jump_ppc64_sysv_elf_gas.S"
 .globl jump_fcontext
+.hidden jump_fcontext
 #if _CALL_ELF == 2
 	.text
 	.align 2
diff --git a/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_macho_gas.S
index dcc6c645db..e4d8944b56 100644
--- a/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_ppc64_sysv_macho_gas.S
@@ -68,6 +68,7 @@
 
 .text
 .align 2
+.private_extern _jump_fcontext
 .globl _jump_fcontext
 
 _jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/jump_riscv64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_riscv64_sysv_elf_gas.S
index 5417e5d5e3..879eb7efee 100644
--- a/contrib/restricted/boost/context/src/asm/jump_riscv64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_riscv64_sysv_elf_gas.S
@@ -61,6 +61,7 @@
 .text
 .align  1
 .global jump_fcontext
+.hidden jump_fcontext
 .type   jump_fcontext, %function
 jump_fcontext:
     # prepare stack for GP + FPU
diff --git a/contrib/restricted/boost/context/src/asm/jump_s390x_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_s390x_sysv_elf_gas.S
index fa71467756..59bc58bf37 100644
--- a/contrib/restricted/boost/context/src/asm/jump_s390x_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_s390x_sysv_elf_gas.S
@@ -46,6 +46,7 @@
 .text
 .align	8
 .global	jump_fcontext
+.hidden jump_fcontext
 .type	jump_fcontext, @function
 
 #define ARG_OFFSET         0
diff --git a/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_elf_gas.S
index be264bdc2e..2eff59a380 100644
--- a/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_elf_gas.S
@@ -44,6 +44,7 @@
 .file "jump_x86_64_sysv_elf_gas.S"
 .text
 .globl jump_fcontext
+.hidden jump_fcontext
 .type jump_fcontext,@function
 .align 16
 jump_fcontext:
@@ -73,14 +74,6 @@ jump_fcontext:
     /* read the current SSP and store it */
     rdsspq  %rcx
     movq  %rcx, (%rsp)
-#endif
-
-#if BOOST_CONTEXT_SHADOW_STACK
-    /* grow the stack to reserve space for shadow stack pointer(SSP) */
-    leaq  -0x8(%rsp), %rsp
-    /* read the current SSP and store it */
-    rdsspq  %rcx
-    movq  %rcx, (%rsp)
 # endif
 
     /* store RSP (pointing to context-data) in RAX */
diff --git a/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_macho_gas.S
index afc3e5c126..673daa61df 100644
--- a/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/jump_x86_64_sysv_macho_gas.S
@@ -25,6 +25,7 @@
  ****************************************************************************************/
 
 .text
+.private_extern _jump_fcontext
 .globl _jump_fcontext
 .align 8
 _jump_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_elf_gas.S
index 66cfb2da17..8ac825bf54 100644
--- a/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_elf_gas.S
@@ -55,6 +55,7 @@
 .text
 .align  2
 .global make_fcontext
+.hidden make_fcontext
 .type   make_fcontext, %function
 make_fcontext:
     # shift address in x0 (allocated stack) to lower 16 byte boundary
diff --git a/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_macho_gas.S b/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_macho_gas.S
index b30b1e3e5b..a6a1314c0d 100644
--- a/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_macho_gas.S
@@ -52,6 +52,7 @@
  *******************************************************/
 
 .text
+.private_extern _make_fcontext
 .globl _make_fcontext
 .balign 16
 
diff --git a/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_pe_armclang.S b/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_pe_armclang.S
new file mode 100644
index 0000000000..cab00e922b
--- /dev/null
+++ b/contrib/restricted/boost/context/src/asm/make_arm64_aapcs_pe_armclang.S
@@ -0,0 +1,118 @@
+/*
+      Copyright Edward Nevill + Oliver Kowalke 2015
+  Distributed under the Boost Software License, Version 1.0.
+     (See accompanying file LICENSE_1_0.txt or copy at
+         http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/******************************************************
+*                                                     *
+*  -------------------------------------------------  *
+*  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
+*  -------------------------------------------------  *
+*  | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c|  *
+*  -------------------------------------------------  *
+*  |    d8     |    d9     |    d10    |    d11    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
+*  -------------------------------------------------  *
+*  | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c|  *
+*  -------------------------------------------------  *
+*  |    d12    |    d13    |    d14    |    d15    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
+*  -------------------------------------------------  *
+*  | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c|  *
+*  -------------------------------------------------  *
+*  |    x19    |    x20    |    x21    |    x22    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
+*  -------------------------------------------------  *
+*  | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c|  *
+*  -------------------------------------------------  *
+*  |    x23    |    x24    |    x25    |    x26    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
+*  -------------------------------------------------  *
+*  | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c|  *
+*  -------------------------------------------------  *
+*  |    x27    |    x28    |    FP     |     LR    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
+*  -------------------------------------------------  *
+*  | 0xa0| 0xa4| 0xa8| 0xac| 0xb0| 0xb4| 0xb8| 0xbc|  *
+*  -------------------------------------------------  *
+*  |   base    |   limit   |  dealloc  | fiber data|  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  48 |  49 |  50 | 51  |           |           |  *
+*  -------------------------------------------------  *
+*  | 0xc0| 0xc4| 0xc8| 0xcc|           |           |  *
+*  -------------------------------------------------  *
+*  |     PC    |   align   |           |           |  *
+*  -------------------------------------------------  *
+*                                                     *
+*******************************************************/
+
+.file	"make_arm64_aapcs_pe_armclang.S"
+.text
+.balign 4
+
+.globl	make_fcontext
+.def	make_fcontext;	.scl	2;	.type	32;	.endef
+.seh_proc	make_fcontext
+make_fcontext:
+.seh_endprologue
+    // save stack top address to x3
+    mov x3, x0
+
+    // shift address in x0 (allocated stack) to lower 16 byte boundary
+    and x0, x0, ~0xF
+
+    // reserve space for context-data on context-stack
+    sub  x0, x0, #0xd0
+
+    // save top address of context_stack as 'base'
+    str  x3, [x0, #0xa0]
+    // save bottom address of context-stack as 'limit' and 'dealloction stack'
+    sub  x3, x3, x1
+    stp  x3, x3, [x0, #0xa8]
+    // save 0 as 'fiber data'
+    str  xzr, [x0, #0xb8]
+
+    // third arg of make_fcontext() == address of context-function
+    // store address as x19 for trampoline
+    str  x2, [x0, #0x40]
+    // store trampoline address as pc
+    adr  x2, trampoline
+    str  x2, [x0, #0xc0]
+
+    // save address of finish as return-address for context-function
+    // will be entered after context-function returns (LR register)
+    adr  x1, finish
+    str  x1, [x0, #0x98]
+
+    ret  x30 // return pointer to context-data (x0)
+
+trampoline:
+    stp  fp, lr, [sp, #-0x10]!
+    mov  fp, sp
+    blr x19
+
+finish:
+    // exit code is zero
+    mov  x0, #0
+    // exit application
+    bl  _exit
+
+.seh_endproc
+
+.def	_exit;	.scl	2;	.type	32;	.endef  /* standard C library function */
+
+.section .drectve
+.ascii " -export:\"make_fcontext\""
diff --git a/contrib/restricted/boost/context/src/asm/make_arm_aapcs_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_arm_aapcs_elf_gas.S
index 98ae64b43f..9616e566af 100644
--- a/contrib/restricted/boost/context/src/asm/make_arm_aapcs_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_arm_aapcs_elf_gas.S
@@ -41,6 +41,7 @@
 .file "make_arm_aapcs_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .align 2
 .type make_fcontext,%function
 .syntax unified
diff --git a/contrib/restricted/boost/context/src/asm/make_arm_aapcs_macho_gas.S b/contrib/restricted/boost/context/src/asm/make_arm_aapcs_macho_gas.S
index c909ae9d43..de934075d2 100644
--- a/contrib/restricted/boost/context/src/asm/make_arm_aapcs_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_arm_aapcs_macho_gas.S
@@ -39,6 +39,7 @@
  *******************************************************/
 
 .text
+.private_extern _make_fcontext
 .globl _make_fcontext
 .align 2
 _make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_i386_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_i386_sysv_elf_gas.S
index c6e0b36558..992bae019a 100644
--- a/contrib/restricted/boost/context/src/asm/make_i386_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_i386_sysv_elf_gas.S
@@ -31,6 +31,7 @@
 .file "make_i386_sysv_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .align 2
 .type make_fcontext,@function
 make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_i386_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/make_i386_sysv_macho_gas.S
index 519e406248..a5890d75f6 100644
--- a/contrib/restricted/boost/context/src/asm/make_i386_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_i386_sysv_macho_gas.S
@@ -25,6 +25,7 @@
  ****************************************************************************************/
 
 .text
+.private_extern _make_fcontext
 .globl _make_fcontext
 .align 2
 _make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_loongarch64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_loongarch64_sysv_elf_gas.S
index 55062702f1..a067baded5 100644
--- a/contrib/restricted/boost/context/src/asm/make_loongarch64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_loongarch64_sysv_elf_gas.S
@@ -41,6 +41,7 @@
 .file "make_loongarch64_sysv_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .align 2
 .type make_fcontext,@function
 make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_mips32_o32_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_mips32_o32_elf_gas.S
index 4e11e3d058..54742f3a8b 100644
--- a/contrib/restricted/boost/context/src/asm/make_mips32_o32_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_mips32_o32_elf_gas.S
@@ -41,6 +41,7 @@
 .file "make_mips32_o32_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .align 2
 .type make_fcontext,@function
 .ent make_fcontext
diff --git a/contrib/restricted/boost/context/src/asm/make_mips64_n64_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_mips64_n64_elf_gas.S
index 7bb30b14de..40f29a55c2 100644
--- a/contrib/restricted/boost/context/src/asm/make_mips64_n64_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_mips64_n64_elf_gas.S
@@ -48,6 +48,7 @@
 .file "make_mips64_n64_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .align 3
 .type make_fcontext,@function
 .ent make_fcontext
diff --git a/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_elf_gas.S
index 9616c4ca9b..0dd7771935 100644
--- a/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_elf_gas.S
@@ -53,6 +53,7 @@
 .file "make_ppc32_sysv_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .align 2
 .type make_fcontext,@function
 make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_macho_gas.S
index 1102ee90ef..e7b0c7a2ae 100644
--- a/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_ppc32_sysv_macho_gas.S
@@ -74,6 +74,7 @@
  *******************************************************/
 
 .text
+.private_extern _make_fcontext
 .globl _make_fcontext
 .align 2
 _make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_elf_gas.S
index c4d7ee5982..f513d3639e 100644
--- a/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_elf_gas.S
@@ -68,6 +68,7 @@
 
 .file "make_ppc64_sysv_elf_gas.S"
 .globl make_fcontext
+.hidden make_fcontext
 #if _CALL_ELF == 2
 	.text
 	.align 2
diff --git a/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_macho_gas.S
index dd7bf2c5c0..d8cdd2d080 100644
--- a/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_ppc64_sysv_macho_gas.S
@@ -67,6 +67,7 @@
  *******************************************************/
 
 .text
+.private_extern _make_fcontext
 .globl _make_fcontext
 _make_fcontext:
     ; save return address into R6
diff --git a/contrib/restricted/boost/context/src/asm/make_riscv64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_riscv64_sysv_elf_gas.S
index 5322e0fdbd..6d97c59e87 100644
--- a/contrib/restricted/boost/context/src/asm/make_riscv64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_riscv64_sysv_elf_gas.S
@@ -61,6 +61,7 @@
 .text
 .align  1
 .global make_fcontext
+.hidden make_fcontext
 .type   make_fcontext, %function
 make_fcontext:
     # shift address in a0 (allocated stack) to lower 16 byte boundary
diff --git a/contrib/restricted/boost/context/src/asm/make_s390x_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_s390x_sysv_elf_gas.S
index 4dd423e2a4..4d6aa62c0a 100644
--- a/contrib/restricted/boost/context/src/asm/make_s390x_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_s390x_sysv_elf_gas.S
@@ -46,6 +46,7 @@
 .text
 .align	8
 .global	make_fcontext
+.hidden make_fcontext
 .type	make_fcontext, @function
 
 #define ARG_OFFSET         0
diff --git a/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_elf_gas.S
index b0d0c0341e..7561c0896b 100644
--- a/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_elf_gas.S
@@ -44,6 +44,7 @@
 .file "make_x86_64_sysv_elf_gas.S"
 .text
 .globl make_fcontext
+.hidden make_fcontext
 .type make_fcontext,@function
 .align 16
 make_fcontext:
@@ -92,35 +93,6 @@ make_fcontext:
     movq  %rcx, 0x38(%rax)
 
 #if BOOST_CONTEXT_SHADOW_STACK
-    /* Populate the shadow stack and normal stack */
-    /* get original SSP */
-    rdsspq  %r8
-    /* restore new shadow stack */
-    rstorssp  -0x8(%r9)
-    /* save the restore token on the original shadow stack */
-    saveprevssp
-    /* push the address of "jmp trampoline" to the new shadow stack */
-    /* as well as the stack */
-    call  1f
-    jmp  trampoline
-1:
-    /* save address of "jmp trampoline" as return-address */
-    /* for context-function */
-    pop 0x38(%rax)
-    /* Get the new SSP.  */
-    rdsspq  %r9
-    /* restore original shadow stack */
-    rstorssp  -0x8(%r8)
-    /* save the restore token on the new shadow stack.  */
-    saveprevssp
-
-    /* reserve space for the new SSP */
-    leaq  -0x8(%rax), %rax
-    /* save the new SSP to this fcontext */
-    movq  %r9, (%rax)
-#endif
-
-#if BOOST_CONTEXT_SHADOW_STACK
     /* Populate the shadow stack */
 
     /* get original SSP */
diff --git a/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_macho_gas.S
index 5d6c5431c5..06357f678a 100644
--- a/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/make_x86_64_sysv_macho_gas.S
@@ -25,6 +25,7 @@
  ****************************************************************************************/
 
 .text
+.private_extern _make_fcontext
 .globl _make_fcontext
 .align 8
 _make_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_elf_gas.S
index 665ca5a2c1..8e40fc7d36 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_elf_gas.S
@@ -55,6 +55,7 @@
 .text
 .align  2
 .global ontop_fcontext
+.hidden ontop_fcontext
 .type   ontop_fcontext, %function
 ontop_fcontext:
     # prepare stack for GP + FPU
diff --git a/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_macho_gas.S b/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_macho_gas.S
index a387d06dd2..8babe47023 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_macho_gas.S
@@ -52,6 +52,7 @@
  *******************************************************/
 
 .text
+.private_extern _ontop_fcontext
 .global _ontop_fcontext
 .balign 16
 _ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_pe_armclang.S b/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_pe_armclang.S
new file mode 100644
index 0000000000..bdf097b71c
--- /dev/null
+++ b/contrib/restricted/boost/context/src/asm/ontop_arm64_aapcs_pe_armclang.S
@@ -0,0 +1,140 @@
+/*
+      Copyright Edward Nevill + Oliver Kowalke 2015
+  Distributed under the Boost Software License, Version 1.0.
+     (See accompanying file LICENSE_1_0.txt or copy at
+         http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/******************************************************
+*                                                     *
+*  -------------------------------------------------  *
+*  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
+*  -------------------------------------------------  *
+*  | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c|  *
+*  -------------------------------------------------  *
+*  |    d8     |    d9     |    d10    |    d11    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
+*  -------------------------------------------------  *
+*  | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c|  *
+*  -------------------------------------------------  *
+*  |    d12    |    d13    |    d14    |    d15    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
+*  -------------------------------------------------  *
+*  | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c|  *
+*  -------------------------------------------------  *
+*  |    x19    |    x20    |    x21    |    x22    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
+*  -------------------------------------------------  *
+*  | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c|  *
+*  -------------------------------------------------  *
+*  |    x23    |    x24    |    x25    |    x26    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
+*  -------------------------------------------------  *
+*  | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c|  *
+*  -------------------------------------------------  *
+*  |    x27    |    x28    |    FP     |     LR    |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
+*  -------------------------------------------------  *
+*  | 0xa0| 0xa4| 0xa8| 0xac| 0xb0| 0xb4| 0xb8| 0xbc|  *
+*  -------------------------------------------------  *
+*  | fiber data|   base    |   limit   |  dealloc  |  *
+*  -------------------------------------------------  *
+*  -------------------------------------------------  *
+*  |  48 |  49 |  50 | 51  |           |           |  *
+*  -------------------------------------------------  *
+*  | 0xc0| 0xc4| 0xc8| 0xcc|           |           |  *
+*  -------------------------------------------------  *
+*  |     PC    |   align   |           |           |  *
+*  -------------------------------------------------  *
+*                                                     *
+*******************************************************/
+
+.file	"ontop_arm64_aapcs_pe_armclang.S"
+.text
+.balign 4
+
+.def	ontop_fcontext;	.scl	2;	.type	32;	.endef
+.seh_proc	ontop_fcontext
+ontop_fcontext:
+.seh_endprologue
+    // prepare stack for GP + FPU
+    sub  sp, sp, #0xd0
+
+    // save d8 - d15
+    stp  d8,  d9,  [sp, #0x00]
+    stp  d10, d11, [sp, #0x10]
+    stp  d12, d13, [sp, #0x20]
+    stp  d14, d15, [sp, #0x30]
+
+    // save x19-x30
+    stp  x19, x20, [sp, #0x40]
+    stp  x21, x22, [sp, #0x50]
+    stp  x23, x24, [sp, #0x60]
+    stp  x25, x26, [sp, #0x70]
+    stp  x27, x28, [sp, #0x80]
+    stp  x29, x30, [sp, #0x90]
+
+    // save LR as PC
+    str  x30, [sp, #0xc0]
+
+    // save current stack base and limit
+    ldp  x5,  x6,  [x18, #0x08] // TeStackBase and TeStackLimit at ksarm64.h
+    stp  x5,  x6,  [sp, #0xa0]
+    // save current fiber data and deallocation stack
+    ldr  x5, [x18, #0x1478] // TeDeallocationStack at ksarm64.h
+    ldr  x6, [x18, #0x20] // TeFiberData at ksarm64.h
+    stp  x5,  x6,  [sp, #0xb0]
+
+    // store RSP (pointing to context-data) in X5
+    mov  x4, sp
+
+    // restore RSP (pointing to context-data) from X1
+    mov  sp, x0
+
+    // restore stack base and limit
+    ldp  x5,  x6,  [sp, #0xa0]
+    stp  x5,  x6,  [x18, #0x08] // TeStackBase and TeStackLimit at ksarm64.h
+    // restore fiber data and deallocation stack
+    ldp  x5,  x6,  [sp, #0xb0]
+    str  x5, [x18, #0x1478] // TeDeallocationStack at ksarm64.h
+    str  x6, [x18, #0x20] // TeFiberData at ksarm64.h
+
+    // load d8 - d15
+    ldp  d8,  d9,  [sp, #0x00]
+    ldp  d10, d11, [sp, #0x10]
+    ldp  d12, d13, [sp, #0x20]
+    ldp  d14, d15, [sp, #0x30]
+
+    // load x19-x30
+    ldp  x19, x20, [sp, #0x40]
+    ldp  x21, x22, [sp, #0x50]
+    ldp  x23, x24, [sp, #0x60]
+    ldp  x25, x26, [sp, #0x70]
+    ldp  x27, x28, [sp, #0x80]
+    ldp  x29, x30, [sp, #0x90]
+
+    // return transfer_t from jump
+    // pass transfer_t as first arg in context function
+    // X0 == FCTX, X1 == DATA
+    mov x0, x4
+
+    // skip pc
+    // restore stack from GP + FPU
+    add  sp, sp, #0xc0
+
+    // jump to ontop-function
+    ret x2
+.seh_endproc
+
+.section .drectve
+.ascii " -export:\"ontop_fcontext\""
diff --git a/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_elf_gas.S
index 59ad5ca9ce..8c6c9020de 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_elf_gas.S
@@ -41,6 +41,7 @@
 .file "ontop_arm_aapcs_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .align 2
 .type ontop_fcontext,%function
 .syntax unified
diff --git a/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_macho_gas.S b/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_macho_gas.S
index 3633aca641..07e63fb24f 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_arm_aapcs_macho_gas.S
@@ -39,6 +39,7 @@
  *******************************************************/
 
 .text
+.private_extern _ontop_fcontext
 .globl _ontop_fcontext
 .align 2
 _ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_elf_gas.S
index 0cb6168fab..ea7a75b90f 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_elf_gas.S
@@ -24,9 +24,14 @@
  *                                                                                      *
  ****************************************************************************************/
 
+#ifdef __x86_64__
+#include "ontop_x86_64_sysv_elf_gas.S"
+#else
+
 .file "ontop_i386_sysv_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .align 2
 .type ontop_fcontext,@function
 ontop_fcontext:
@@ -98,3 +103,5 @@ ontop_fcontext:
 
 /* Mark that we don't need executable stack.  */
 .section .note.GNU-stack,"",%progbits
+
+#endif
diff --git a/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_macho_gas.S
index 3a88372b3a..c129e8e0c7 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_i386_sysv_macho_gas.S
@@ -25,6 +25,7 @@
  ****************************************************************************************/
 
 .text
+.private_extern _ontop_fcontext
 .globl _ontop_fcontext
 .align 2
 _ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_loongarch64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_loongarch64_sysv_elf_gas.S
index c6ea044857..ed392e8afa 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_loongarch64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_loongarch64_sysv_elf_gas.S
@@ -41,6 +41,7 @@
 .file "ontop_loongarch64_sysv_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .align 2
 .type ontop_fcontext,@function
 ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_mips32_o32_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_mips32_o32_elf_gas.S
index c69203c655..e6306cc375 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_mips32_o32_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_mips32_o32_elf_gas.S
@@ -41,6 +41,7 @@
 .file "ontop_mips32_o32_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .align 2
 .type ontop_fcontext,@function
 .ent ontop_fcontext
diff --git a/contrib/restricted/boost/context/src/asm/ontop_mips64_n64_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_mips64_n64_elf_gas.S
index 68087b0521..e73e0395b1 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_mips64_n64_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_mips64_n64_elf_gas.S
@@ -48,6 +48,7 @@
 .file "ontop_mips64_n64_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .align 3
 .type ontop_fcontext,@function
 .ent ontop_fcontext
diff --git a/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_elf_gas.S
index 464d99d59d..8aa350a4f8 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_elf_gas.S
@@ -53,6 +53,7 @@
 .file "ontop_ppc32_sysv_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .align 2
 .type ontop_fcontext,@function
 ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_macho_gas.S
index a74617172c..ee6f5b7228 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_ppc32_sysv_macho_gas.S
@@ -74,6 +74,7 @@
  *******************************************************/
 
 .text
+.private_extern _ontop_fcontext
 .globl _ontop_fcontext
 .align 2
 _ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_elf_gas.S
index cd97f45671..46cf30d8aa 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_elf_gas.S
@@ -68,6 +68,7 @@
 
 .file "ontop_ppc64_sysv_elf_gas.S"
 .globl ontop_fcontext
+.hidden ontop_fcontext
 #if _CALL_ELF == 2
 	.text
 	.align 2
diff --git a/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_macho_gas.S
index a9fe8cf5b8..5cd6359e31 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_ppc64_sysv_macho_gas.S
@@ -68,6 +68,7 @@
 
 .text
 .align 2
+.private_extern _ontop_fcontext
 .globl _ontop_fcontext
 
 _ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_riscv64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_riscv64_sysv_elf_gas.S
index 61ab46bcc6..f57d1f3996 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_riscv64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_riscv64_sysv_elf_gas.S
@@ -61,6 +61,7 @@
 .text
 .align  1
 .global ontop_fcontext
+.hidden ontop_fcontext
 .type   ontop_fcontext, %function
 ontop_fcontext:
     # prepare stack for GP + FPU
diff --git a/contrib/restricted/boost/context/src/asm/ontop_s390x_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_s390x_sysv_elf_gas.S
index 6a464aa3bf..3a0d864e9c 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_s390x_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_s390x_sysv_elf_gas.S
@@ -46,6 +46,7 @@
 .text
 .align  8
 .global ontop_fcontext
+.hidden ontop_fcontext
 .type   ontop_fcontext, @function
 
 #define ARG_OFFSET         0
diff --git a/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_elf_gas.S b/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_elf_gas.S
index c3892b8ba0..e3e4bdf870 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_elf_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_elf_gas.S
@@ -40,6 +40,7 @@
 .file "ontop_x86_64_sysv_elf_gas.S"
 .text
 .globl ontop_fcontext
+.hidden ontop_fcontext
 .type ontop_fcontext,@function
 .align 16
 ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_macho_gas.S b/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_macho_gas.S
index 49755c69b0..7d15b5ba24 100644
--- a/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_macho_gas.S
+++ b/contrib/restricted/boost/context/src/asm/ontop_x86_64_sysv_macho_gas.S
@@ -25,6 +25,7 @@
  ****************************************************************************************/
 
 .text
+.private_extern _ontop_fcontext
 .globl _ontop_fcontext
 .align 8
 _ontop_fcontext:
diff --git a/contrib/restricted/boost/context/src/fcontext.cpp b/contrib/restricted/boost/context/src/fcontext.cpp
new file mode 100644
index 0000000000..9fe0a4892d
--- /dev/null
+++ b/contrib/restricted/boost/context/src/fcontext.cpp
@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+// This code wraps the plain C asm symbols into properly
+// namespaced and mangled C++ symbols that are safe to
+// export from a library.
+
+#include <boost/context/detail/fcontext.hpp>
+
+extern "C"
+boost::context::detail::transfer_t BOOST_CONTEXT_CALLDECL jump_fcontext( boost::context::detail::fcontext_t const to, void * vp);
+extern "C"
+boost::context::detail::fcontext_t BOOST_CONTEXT_CALLDECL make_fcontext( void * sp, std::size_t size, void (* fn)( boost::context::detail::transfer_t) );
+
+// based on an idea of Giovanni Derreta
+extern "C"
+boost::context::detail::transfer_t BOOST_CONTEXT_CALLDECL ontop_fcontext( boost::context::detail::fcontext_t const to, void * vp, boost::context::detail::transfer_t (* fn)( boost::context::detail::transfer_t) );
+
+namespace boost {
+namespace context {
+namespace detail {
+
+transfer_t jump_fcontext( fcontext_t const to, void * vp)
+{
+    return ::jump_fcontext(to, vp);
+}
+
+fcontext_t make_fcontext( void * sp, std::size_t size, void (* fn)( transfer_t) )
+{
+    return ::make_fcontext(sp, size, fn);
+}
+
+transfer_t ontop_fcontext( fcontext_t const to, void * vp, transfer_t (* fn)( transfer_t) )
+{
+    return ::ontop_fcontext(to, vp, fn);
+}
+}}}
diff --git a/contrib/restricted/boost/context/ucontext_impl/ya.make b/contrib/restricted/boost/context/ucontext_impl/ya.make
index 61ba1464c0..8c9ce98e9b 100644
--- a/contrib/restricted/boost/context/ucontext_impl/ya.make
+++ b/contrib/restricted/boost/context/ucontext_impl/ya.make
@@ -4,9 +4,9 @@ LIBRARY()
 
 WITHOUT_LICENSE_TEXTS()
 
-VERSION(1.86.0)
+VERSION(1.87.0)
 
-ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.86.0.tar.gz)
+ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.87.0.tar.gz)
 
 LICENSE(BSL-1.0)
 
diff --git a/contrib/restricted/boost/context/ya.make b/contrib/restricted/boost/context/ya.make
index f70cdc034c..d3c74aa986 100644
--- a/contrib/restricted/boost/context/ya.make
+++ b/contrib/restricted/boost/context/ya.make
@@ -6,9 +6,9 @@ LICENSE(BSL-1.0)
 
 LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
 
-VERSION(1.86.0)
+VERSION(1.87.0)
 
-ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.86.0.tar.gz)
+ORIGINAL_SOURCE(https://github.com/boostorg/context/archive/boost-1.87.0.tar.gz)
 
 IF (SANITIZER_TYPE)
     PEERDIR(