[cmake] refactor: Use CPM over submodules (#143)

Transfers the majority of submodules and large externals to CPM, using source archives rather than full Git clones. Not only does this save massive amounts of clone and configure time, but dependencies are grabbed on-demand rather than being required by default. Additionally, CPM will (generally) automatically search for system dependencies, though certain dependencies have options to control this.

Testing shows gains ranging from 5x to 10x in terms of overall clone/configure time.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/143
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

1 files changed, 0 insertions, 645 deletions

diff --git a/externals/breakpad/src/common/linux/breakpad_getcontext.S b/externals/breakpad/src/common/linux/breakpad_getcontext.S
deleted file mode 100644
index 286047bf5a..0000000000
--- a/externals/breakpad/src/common/linux/breakpad_getcontext.S
+++ /dev/null
@@ -1,645 +0,0 @@
-// Copyright 2012 Google LLC
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google LLC nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// A minimalistic implementation of getcontext() to be used by
-// Google Breakpad when getcontext() is not available in libc.
-
-#include "common/linux/ucontext_constants.h"
-
-/* int getcontext (ucontext_t* ucp) */
-
-#if defined(__arm__)
-
-  .text
-  .global breakpad_getcontext
-  .hidden breakpad_getcontext
-  .type breakpad_getcontext, #function
-  .align 0
-  .fnstart
-breakpad_getcontext:
-
-  /* First, save r4-r11 */
-  add   r1, r0, #(MCONTEXT_GREGS_OFFSET + 4*4)
-  stm   r1, {r4-r11}
-
-  /* r12 is a scratch register, don't save it */
-
-  /* Save sp and lr explicitly. */
-  /* - sp can't be stored with stmia in Thumb-2 */
-  /* - STM instructions that store sp and pc are deprecated in ARM */
-  str   sp, [r0, #(MCONTEXT_GREGS_OFFSET + 13*4)]
-  str   lr, [r0, #(MCONTEXT_GREGS_OFFSET + 14*4)]
-
-  /* Save the caller's address in 'pc' */
-  str   lr, [r0, #(MCONTEXT_GREGS_OFFSET + 15*4)]
-
-  /* Save ucontext_t* pointer across next call */
-  mov   r4, r0
-
-  /* Call sigprocmask(SIG_BLOCK, NULL, &(ucontext->uc_sigmask)) */
-  mov   r0, #0  /* SIG_BLOCK */
-  mov   r1, #0  /* NULL */
-  add   r2, r4, #UCONTEXT_SIGMASK_OFFSET
-  bl    sigprocmask(PLT)
-
-  /* Intentionally do not save the FPU state here. This is because on
-   * Linux/ARM, one should instead use ptrace(PTRACE_GETFPREGS) or
-   * ptrace(PTRACE_GETVFPREGS) to get it.
-   *
-   * Note that a real implementation of getcontext() would need to save
-   * this here to allow setcontext()/swapcontext() to work correctly.
-   */
-
-  /* Restore the values of r4 and lr */
-  mov   r0, r4
-  ldr   lr, [r0, #(MCONTEXT_GREGS_OFFSET + 14*4)]
-  ldr   r4, [r0, #(MCONTEXT_GREGS_OFFSET +  4*4)]
-
-  /* Return 0 */
-  mov   r0, #0
-  bx    lr
-
-  .fnend
-  .size breakpad_getcontext, . - breakpad_getcontext
-
-#elif defined(__aarch64__)
-
-#if defined(__ARM_FEATURE_PAC_DEFAULT) && __ARM_FEATURE_PAC_DEFAULT
-    // ENABLE_PAUTH must be defined to 1 since this value will be used in
-    // bitwise-shift later!
-    #define ENABLE_PAUTH 1
-
-    #if ((__ARM_FEATURE_PAC_DEFAULT&((1<<0)|(1<<1)))==0)
-        #error Pointer authentication defines no valid key!
-    #endif
-#else
-    #define ENABLE_PAUTH 0
-#endif
-
-#if defined(__ARM_FEATURE_BTI_DEFAULT) && (__ARM_FEATURE_BTI_DEFAULT==1)
-    // ENABLE_BTI must be defined to 1 since this value will be used in
-    // bitwise-shift later!
-    #define ENABLE_BTI 1
-#else
-    #define ENABLE_BTI 0
-#endif
-
-
-// Although Pointer Authentication and Branch Target Instructions are technically
-// seperate features they work together, i.e. the paciasp and pacibsp instructions
-// serve as BTI landing pads.
-// Therefore PA-instructions are enabled when PA _or_ BTI is enabled!
-#if ENABLE_PAUTH || ENABLE_BTI
-    // See section "Pointer Authentication" of
-    // https://developer.arm.com/documentation/101028/0012/5--Feature-test-macros
-    // for details how to interpret __ARM_FEATURE_PAC_DEFAULT
-    #if (__ARM_FEATURE_PAC_DEFAULT & (1<<0))
-        #define PAUTH_SIGN_SP paciasp
-        #define PAUTH_AUTH_SP autiasp
-    #else
-        #define PAUTH_SIGN_SP pacibsp
-        #define PAUTH_AUTH_SP autibsp
-    #endif
-#else
-    #define PAUTH_SIGN_SP
-    #define PAUTH_AUTH_SP
-#endif
-
-#define  _NSIG                       64
-#define  __NR_rt_sigprocmask         135
-
-  .text
-  .global breakpad_getcontext
-  .hidden breakpad_getcontext
-  .type breakpad_getcontext, #function
-  .align 4
-  .cfi_startproc
-breakpad_getcontext:
-
-  PAUTH_SIGN_SP
-
-  /* The saved context will return to the getcontext() call point
-     with a return value of 0 */
-  str     xzr,      [x0, MCONTEXT_GREGS_OFFSET +  0 * REGISTER_SIZE]
-
-  stp     x18, x19, [x0, MCONTEXT_GREGS_OFFSET + 18 * REGISTER_SIZE]
-  stp     x20, x21, [x0, MCONTEXT_GREGS_OFFSET + 20 * REGISTER_SIZE]
-  stp     x22, x23, [x0, MCONTEXT_GREGS_OFFSET + 22 * REGISTER_SIZE]
-  stp     x24, x25, [x0, MCONTEXT_GREGS_OFFSET + 24 * REGISTER_SIZE]
-  stp     x26, x27, [x0, MCONTEXT_GREGS_OFFSET + 26 * REGISTER_SIZE]
-  stp     x28, x29, [x0, MCONTEXT_GREGS_OFFSET + 28 * REGISTER_SIZE]
-  str     x30,      [x0, MCONTEXT_GREGS_OFFSET + 30 * REGISTER_SIZE]
-
-  /* Place LR into the saved PC, this will ensure that when
-     switching to this saved context with setcontext() control
-     will pass back to the caller of getcontext(), we have
-     already arranged to return the appropriate return value in x0
-     above.  */
-  str     x30, [x0, MCONTEXT_PC_OFFSET]
-
-  /* Save the current SP */
-  mov     x2, sp
-  str     x2, [x0, MCONTEXT_SP_OFFSET]
-
-  /* Initialize the pstate.  */
-  str     xzr, [x0, MCONTEXT_PSTATE_OFFSET]
-
-  /* Figure out where to place the first context extension
-     block.  */
-  add     x2, x0, #MCONTEXT_EXTENSION_OFFSET
-
-  /* Write the context extension fpsimd header.  */
-  mov     w3, #(FPSIMD_MAGIC & 0xffff)
-  movk    w3, #(FPSIMD_MAGIC >> 16), lsl #16
-  str     w3, [x2, #FPSIMD_CONTEXT_MAGIC_OFFSET]
-  mov     w3, #FPSIMD_CONTEXT_SIZE
-  str     w3, [x2, #FPSIMD_CONTEXT_SIZE_OFFSET]
-
-  /* Fill in the FP SIMD context.  */
-  add     x3, x2, #(FPSIMD_CONTEXT_VREGS_OFFSET + 8 * SIMD_REGISTER_SIZE)
-  stp     d8,  d9, [x3], #(2 * SIMD_REGISTER_SIZE)
-  stp     d10, d11, [x3], #(2 * SIMD_REGISTER_SIZE)
-  stp     d12, d13, [x3], #(2 * SIMD_REGISTER_SIZE)
-  stp     d14, d15, [x3], #(2 * SIMD_REGISTER_SIZE)
-
-  add     x3, x2, FPSIMD_CONTEXT_FPSR_OFFSET
-
-  mrs     x4, fpsr
-  str     w4, [x3]
-
-  mrs     x4, fpcr
-  str     w4, [x3, FPSIMD_CONTEXT_FPCR_OFFSET - FPSIMD_CONTEXT_FPSR_OFFSET]
-
-  /* Write the termination context extension header.  */
-  add     x2, x2, #FPSIMD_CONTEXT_SIZE
-
-  str     xzr, [x2, #FPSIMD_CONTEXT_MAGIC_OFFSET]
-  str     xzr, [x2, #FPSIMD_CONTEXT_SIZE_OFFSET]
-
-  /* Grab the signal mask */
-  /* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
-  add     x2, x0, #UCONTEXT_SIGMASK_OFFSET
-  mov     x0, #0  /* SIG_BLOCK */
-  mov     x1, #0  /* NULL */
-  mov     x3, #(_NSIG / 8)
-  mov     x8, #__NR_rt_sigprocmask
-  svc     0
-
-  /* Return x0 for success */
-  mov     x0, 0
-
-  PAUTH_AUTH_SP
-
-  ret
-
-  .cfi_endproc
-  .size breakpad_getcontext, . - breakpad_getcontext
-
-#elif defined(__i386__)
-
-  .text
-  .global breakpad_getcontext
-  .hidden breakpad_getcontext
-  .align 4
-  .type breakpad_getcontext, @function
-
-breakpad_getcontext:
-
-  movl 4(%esp), %eax   /* eax = uc */
-
-  /* Save register values */
-  movl %ecx, MCONTEXT_ECX_OFFSET(%eax)
-  movl %edx, MCONTEXT_EDX_OFFSET(%eax)
-  movl %ebx, MCONTEXT_EBX_OFFSET(%eax)
-  movl %edi, MCONTEXT_EDI_OFFSET(%eax)
-  movl %esi, MCONTEXT_ESI_OFFSET(%eax)
-  movl %ebp, MCONTEXT_EBP_OFFSET(%eax)
-
-  movl (%esp), %edx   /* return address */
-  lea  4(%esp), %ecx  /* exclude return address from stack */
-  mov  %edx, MCONTEXT_EIP_OFFSET(%eax)
-  mov  %ecx, MCONTEXT_ESP_OFFSET(%eax)
-
-  xorl %ecx, %ecx
-  movw %fs, %cx
-  mov  %ecx, MCONTEXT_FS_OFFSET(%eax)
-
-  movl $0, MCONTEXT_EAX_OFFSET(%eax)
-
-  /* Save floating point state to fpregstate, then update
-   * the fpregs pointer to point to it */
-  leal UCONTEXT_FPREGS_MEM_OFFSET(%eax), %ecx
-  fnstenv (%ecx)
-  fldenv  (%ecx)
-  mov %ecx, UCONTEXT_FPREGS_OFFSET(%eax)
-
-  /* Save signal mask: sigprocmask(SIGBLOCK, NULL, &uc->uc_sigmask) */
-  leal UCONTEXT_SIGMASK_OFFSET(%eax), %edx
-  xorl %ecx, %ecx
-  push %edx   /* &uc->uc_sigmask */
-  push %ecx   /* NULL */
-  push %ecx   /* SIGBLOCK == 0 on i386 */
-  call sigprocmask@PLT
-  addl $12, %esp
-
-  movl $0, %eax
-  ret
-
-  .size breakpad_getcontext, . - breakpad_getcontext
-
-#elif defined(__mips__)
-
-// This implementation is inspired by implementation of getcontext in glibc.
-#include <asm-mips/asm.h>
-#include <asm-mips/regdef.h>
-#if _MIPS_SIM == _ABIO32
-#include <asm-mips/fpregdef.h>
-#endif
-
-// from asm-mips/asm.h
-#if _MIPS_SIM == _ABIO32
-#define ALSZ 7
-#define ALMASK ~7
-#define SZREG 4
-#else // _MIPS_SIM != _ABIO32
-#define ALSZ 15
-#define ALMASK ~15
-#define SZREG 8
-#endif
-
-#include <asm/unistd.h> // for __NR_rt_sigprocmask
-
-#define _NSIG8 128 / 8
-#define SIG_BLOCK 1
-
-
-  .text
-LOCALS_NUM = 1 // save gp on stack
-FRAME_SIZE = ((LOCALS_NUM * SZREG) + ALSZ) & ALMASK
-
-GP_FRAME_OFFSET = FRAME_SIZE - (1 * SZREG)
-MCONTEXT_REG_SIZE = 8
-
-#if _MIPS_SIM == _ABIO32
-
-NESTED (breakpad_getcontext, FRAME_SIZE, ra)
-  .mask	0x00000000, 0
-  .fmask 0x00000000, 0
-
-  .set noreorder
-  .cpload t9
-  .set reorder
-
-  move a2, sp
-#define _SP a2
-
-  addiu sp, -FRAME_SIZE
-  .cprestore GP_FRAME_OFFSET
-
-  sw s0, (16 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s1, (17 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s2, (18 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s3, (19 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s4, (20 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s5, (21 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s6, (22 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw s7, (23 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw _SP, (29 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw fp, (30 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw ra, (31 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sw ra, MCONTEXT_PC_OFFSET(a0)
-
-#ifdef __mips_hard_float
-  s.d fs0, (20 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d fs1, (22 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d fs2, (24 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d fs3, (26 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d fs4, (28 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d fs5, (30 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-
-  cfc1 v1, fcr31
-  sw v1, MCONTEXT_FPC_CSR(a0)
-#endif  // __mips_hard_float
-
-  /* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
-  li a3, _NSIG8
-  addu a2, a0, UCONTEXT_SIGMASK_OFFSET
-  move a1, zero
-  li a0, SIG_BLOCK
-  li v0, __NR_rt_sigprocmask
-  syscall
-
-  addiu sp, FRAME_SIZE
-  jr ra
-
-END (breakpad_getcontext)
-#else
-
-#ifndef NESTED
-/*
- * NESTED - declare nested routine entry point
- */
-#define NESTED(symbol, framesize, rpc)  \
-    .globl  symbol;                     \
-    .align  2;                          \
-    .type symbol,@function;             \
-    .ent  symbol,0;                     \
-symbol:   .frame  sp, framesize, rpc;
-#endif
-
-/*
- * END - mark end of function
- */
-#ifndef END
-# define END(function)                  \
-    .end  function;                     \
-    .size function,.-function
-#endif
-
-/* int getcontext (ucontext_t* ucp) */
-
-NESTED (breakpad_getcontext, FRAME_SIZE, ra)
-  .mask   0x10000000, 0
-  .fmask  0x00000000, 0
-
-  move  a2, sp
-#define _SP a2
-  move  a3, gp
-#define _GP a3
-
-  daddiu sp, -FRAME_SIZE
-  .cpsetup $25, GP_FRAME_OFFSET, breakpad_getcontext
-
-  /* Store a magic flag.  */
-  li  v1, 1
-  sd v1, (0 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)  /* zero */
-
-  sd s0, (16 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s1, (17 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s2, (18 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s3, (19 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s4, (20 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s5, (21 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s6, (22 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s7, (23 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd _GP, (28 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd _SP, (29 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd s8, (30 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd ra, (31 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
-  sd ra, MCONTEXT_PC_OFFSET(a0)
-
-#ifdef __mips_hard_float
-  s.d $f24, (24 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f25, (25 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f26, (26 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f27, (27 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f28, (28 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f29, (29 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f30, (30 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-  s.d $f31, (31 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
-
-  cfc1  v1, $31
-  sw  v1, MCONTEXT_FPC_CSR(a0)
-#endif /* __mips_hard_float */
-
-/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
-  li  a3, _NSIG8
-  daddu a2, a0, UCONTEXT_SIGMASK_OFFSET
-  move  a1, zero
-  li  a0, SIG_BLOCK
-
-  li  v0, __NR_rt_sigprocmask
-  syscall
-
-  .cpreturn
-  daddiu sp, FRAME_SIZE
-  move  v0, zero
-  jr  ra
-
-END (breakpad_getcontext)
-#endif // _MIPS_SIM == _ABIO32
-
-#elif defined(__x86_64__)
-/* The x64 implementation of breakpad_getcontext was derived in part
-   from the implementation of libunwind which requires the following
-   notice. */
-/* libunwind - a platform-independent unwind library
-   Copyright (C) 2008 Google, Inc
-	Contributed by Paul Pluzhnikov <ppluzhnikov@google.com>
-   Copyright (C) 2010 Konstantin Belousov <kib@freebsd.org>
-
-This file is part of libunwind.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
-
-  .text
-  .global breakpad_getcontext
-  .hidden breakpad_getcontext
-  .align 4
-  .type breakpad_getcontext, @function
-
-breakpad_getcontext:
-  .cfi_startproc
-
-  /* Callee saved: RBX, RBP, R12-R15  */
-  movq %r12, MCONTEXT_GREGS_R12(%rdi)
-  movq %r13, MCONTEXT_GREGS_R13(%rdi)
-  movq %r14, MCONTEXT_GREGS_R14(%rdi)
-  movq %r15, MCONTEXT_GREGS_R15(%rdi)
-  movq %rbp, MCONTEXT_GREGS_RBP(%rdi)
-  movq %rbx, MCONTEXT_GREGS_RBX(%rdi)
-
-  /* Save argument registers (not strictly needed, but setcontext
-     restores them, so don't restore garbage).  */
-  movq %r8,  MCONTEXT_GREGS_R8(%rdi)
-  movq %r9,  MCONTEXT_GREGS_R9(%rdi)
-  movq %rdi, MCONTEXT_GREGS_RDI(%rdi)
-  movq %rsi, MCONTEXT_GREGS_RSI(%rdi)
-  movq %rdx, MCONTEXT_GREGS_RDX(%rdi)
-  movq %rax, MCONTEXT_GREGS_RAX(%rdi)
-  movq %rcx, MCONTEXT_GREGS_RCX(%rdi)
-
-  /* Save fp state (not needed, except for setcontext not
-     restoring garbage).  */
-  leaq MCONTEXT_FPREGS_MEM(%rdi),%r8
-  movq %r8, MCONTEXT_FPREGS_PTR(%rdi)
-  fnstenv (%r8)
-  stmxcsr FPREGS_OFFSET_MXCSR(%r8)
-
-  leaq 8(%rsp), %rax /* exclude this call.  */
-  movq %rax, MCONTEXT_GREGS_RSP(%rdi)
-
-  movq 0(%rsp), %rax
-  movq %rax, MCONTEXT_GREGS_RIP(%rdi)
-
-  /* Save signal mask: sigprocmask(SIGBLOCK, NULL, &uc->uc_sigmask) */
-  leaq UCONTEXT_SIGMASK_OFFSET(%rdi), %rdx  // arg3
-  xorq %rsi, %rsi  // arg2 NULL
-  xorq %rdi, %rdi  // arg1 SIGBLOCK == 0
-  call sigprocmask@PLT
-
-  /* Always return 0 for success, even if sigprocmask failed. */
-  xorl %eax, %eax
-  ret
-  .cfi_endproc
-  .size breakpad_getcontext, . - breakpad_getcontext
-
-#elif defined(__riscv)
-
-# define SIG_BLOCK                     0
-# define _NSIG8                        8
-# define __NR_rt_sigprocmask         135
-
-  .text
-  .globl breakpad_getcontext
-  .type breakpad_getcontext, @function
-  .align 0
-  .cfi_startproc
-breakpad_getcontext:
-  REG_S ra,  MCONTEXT_GREGS_PC(a0)
-  REG_S ra,  MCONTEXT_GREGS_RA(a0)
-  REG_S sp,  MCONTEXT_GREGS_SP(a0)
-  REG_S gp,  MCONTEXT_GREGS_SP(a0)
-  REG_S tp,  MCONTEXT_GREGS_TP(a0)
-  REG_S t0,  MCONTEXT_GREGS_T0(a0)
-  REG_S t1,  MCONTEXT_GREGS_T1(a0)
-  REG_S t2,  MCONTEXT_GREGS_T2(a0)
-  REG_S s0,  MCONTEXT_GREGS_S0(a0)
-  REG_S s1,  MCONTEXT_GREGS_S1(a0)
-  REG_S a0,  MCONTEXT_GREGS_A0(a0)
-  REG_S a1,  MCONTEXT_GREGS_A1(a0)
-  REG_S a2,  MCONTEXT_GREGS_A2(a0)
-  REG_S a3,  MCONTEXT_GREGS_A3(a0)
-  REG_S a4,  MCONTEXT_GREGS_A4(a0)
-  REG_S a5,  MCONTEXT_GREGS_A5(a0)
-  REG_S a6,  MCONTEXT_GREGS_A6(a0)
-  REG_S a7,  MCONTEXT_GREGS_A7(a0)
-  REG_S s2,  MCONTEXT_GREGS_S2(a0)
-  REG_S s3,  MCONTEXT_GREGS_S3(a0)
-  REG_S s4,  MCONTEXT_GREGS_S4(a0)
-  REG_S s5,  MCONTEXT_GREGS_S5(a0)
-  REG_S s6,  MCONTEXT_GREGS_S6(a0)
-  REG_S s7,  MCONTEXT_GREGS_S7(a0)
-  REG_S s8,  MCONTEXT_GREGS_S8(a0)
-  REG_S s9,  MCONTEXT_GREGS_S9(a0)
-  REG_S s10, MCONTEXT_GREGS_S10(a0)
-  REG_S s11, MCONTEXT_GREGS_S11(a0)
-  REG_S t3,  MCONTEXT_GREGS_T3(a0)
-  REG_S t4,  MCONTEXT_GREGS_T4(a0)
-  REG_S t5,  MCONTEXT_GREGS_T5(a0)
-  REG_S t6 , MCONTEXT_GREGS_T6(a0)
-# ifndef __riscv_float_abi_soft
-  frsr a1
-
-  FREG_S ft0,  MCONTEXT_FPREGS_FT0(a0)
-  FREG_S ft1,  MCONTEXT_FPREGS_FT1(a0)
-  FREG_S ft2,  MCONTEXT_FPREGS_FT2(a0)
-  FREG_S ft3,  MCONTEXT_FPREGS_FT3(a0)
-  FREG_S ft4,  MCONTEXT_FPREGS_FT4(a0)
-  FREG_S ft5,  MCONTEXT_FPREGS_FT5(a0)
-  FREG_S ft6,  MCONTEXT_FPREGS_FT6(a0)
-  FREG_S ft7,  MCONTEXT_FPREGS_FT7(a0)
-  FREG_S fs0,  MCONTEXT_FPREGS_FS0(a0)
-  FREG_S fs1,  MCONTEXT_FPREGS_FS1(a0)
-  FREG_S fa0,  MCONTEXT_FPREGS_FA0(a0)
-  FREG_S fa1,  MCONTEXT_FPREGS_FA1(a0)
-  FREG_S fa2,  MCONTEXT_FPREGS_FA2(a0)
-  FREG_S fa3,  MCONTEXT_FPREGS_FA3(a0)
-  FREG_S fa4,  MCONTEXT_FPREGS_FA4(a0)
-  FREG_S fa5,  MCONTEXT_FPREGS_FA5(a0)
-  FREG_S fa6,  MCONTEXT_FPREGS_FA6(a0)
-  FREG_S fa7,  MCONTEXT_FPREGS_FA7(a0)
-  FREG_S fs2,  MCONTEXT_FPREGS_FS2(a0)
-  FREG_S fs3,  MCONTEXT_FPREGS_FS3(a0)
-  FREG_S fs4,  MCONTEXT_FPREGS_FS4(a0)
-  FREG_S fs5,  MCONTEXT_FPREGS_FS5(a0)
-  FREG_S fs6,  MCONTEXT_FPREGS_FS6(a0)
-  FREG_S fs7,  MCONTEXT_FPREGS_FS7(a0)
-  FREG_S fs8,  MCONTEXT_FPREGS_FS8(a0)
-  FREG_S fs9,  MCONTEXT_FPREGS_FS9(a0)
-  FREG_S fs10, MCONTEXT_FPREGS_FS10(a0)
-  FREG_S fs11, MCONTEXT_FPREGS_FS11(a0)
-  FREG_S ft8,  MCONTEXT_FPREGS_FT8(a0)
-  FREG_S ft9,  MCONTEXT_FPREGS_FT9(a0)
-  FREG_S ft10, MCONTEXT_FPREGS_FT10(a0)
-  FREG_S ft11, MCONTEXT_FPREGS_FT11(a0)
-
-  sw a1, MCONTEXT_FPC_CSR(a0)
-# endif // __riscv_float_abi_soft
-  mv a1, zero
-  add a2, a0, UCONTEXT_SIGMASK_OFFSET
-  li a3, _NSIG8
-  mv a0, zero
-  li a7, __NR_rt_sigprocmask
-  ecall
-  mv a0, zero
-  ret
-
-  .cfi_endproc
-  .size breakpad_getcontext, . - breakpad_getcontext
-
-#else
-# error "This file has not been ported for your CPU!"
-#endif
-
-#if defined(__aarch64__)
-// ENABLE_PAUTH and ENABLE_BTI would be enabled at the definition
-//  of AArch64 specific breakpad_getcontext function
-#if ENABLE_PAUTH || ENABLE_BTI
-// for further information on the .note.gnu.property section see
-// https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst#program-property
-.pushsection .note.gnu.property, "a";
-    .balign 8
-    .long 4
-    .long 0x10
-    .long 0x5
-    .asciz "GNU"
-    .long 0xc0000000 /* GNU_PROPERTY_AARCH64_FEATURE_1_AND */
-    .long 4
-    .long ((ENABLE_PAUTH)<<1) | ((ENABLE_BTI)<<0) /* PAuth and BTI */
-    .long 0
-.popsection
-#endif
-#endif