mirror of
https://github.com/nim-lang/Nim.git
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373e667dbc
* ucontext backend (default on unix)
* setjmp backend
* fibers backend (default and required on windows)
* Fixed coroutine loop timing issues
* Fixed saving of xmm registers on x64 windows
* Fixed alignment issues
* Updated coroutine sample with cooperative fibonacci calculation.
* Disable glibc security features only when platform jump functions are used
* Removed dependency on fasm.
* Using fiber api on windows.
* Other platforms and compilers will use built in assembler and .S files or API provided by platform libc.
* Replaced stack switching procs with `coroExecWithStack()` which never returns. This makes compiler always generate proper code.
65 lines
1.5 KiB
ArmAsm
65 lines
1.5 KiB
ArmAsm
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2015 Rokas Kupstys
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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# Partially based on code from musl libc Copyright © 2005-2014 Rich Felker, et al.
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.globl narch_coroExecWithStack
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.globl narch_setjmp
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.globl narch_longjmp
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#if defined(__MINGW32__) || defined(__MINGW64__)
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.globl @narch_coroExecWithStack@8
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.globl @narch_setjmp@4
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.globl @narch_longjmp@8
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#endif
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.text
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#if defined(__MINGW32__) || defined(__MINGW64__)
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@narch_coroExecWithStack@8:
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#endif
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narch_coroExecWithStack:
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mov %edx, %esp # swap stack with one passed to func
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sub $0x10, %esp # 16-byte alignment
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and $-0x10, %esp #
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sub $4, %esp # Simulate misalignment caused by return addr
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jmp *%ecx
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#if defined(__MINGW32__) || defined(__MINGW64__)
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@narch_setjmp@4:
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#endif
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narch_setjmp:
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mov %ebx, (%ecx)
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mov %esi, 0x04(%ecx)
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mov %edi, 0x08(%ecx)
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mov %ebp, 0x0C(%ecx)
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lea 0x04(%esp), %eax
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mov %eax, 0x10(%ecx)
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mov (%esp), %eax
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mov %eax, 0x14(%ecx)
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xor %eax, %eax
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ret
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#if defined(__MINGW32__) || defined(__MINGW64__)
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@narch_longjmp@8:
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#endif
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narch_longjmp:
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mov %edx, %eax
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test %eax, %eax
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jnz narch_longjmp_1
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inc %eax
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narch_longjmp_1:
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mov (%ecx), %ebx
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mov 0x04(%ecx), %esi
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mov 0x08(%ecx), %edi
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mov 0x0C(%ecx), %ebp
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mov 0x10(%ecx), %esp
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mov 0x14(%ecx), %edx
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jmp *%edx
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