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Change Makefile rule for assembly to use .S rather than .s

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It is more conventional to use compiler to pre-process and
assemble the `.S` file rather than forcing Makefile to use `.s`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
samuel 2018-11-24 11:35:29 +00:00
parent 091422388e
commit e64f71f812
7 changed files with 1 additions and 1 deletions
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42
coroutine/amd64/Context.S Normal file
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@ -0,0 +1,42 @@
##
## This file is part of the "Coroutine" project and released under the MIT License.
##
## Created by Samuel Williams on 10/5/2018.
## Copyright, 2018, by Samuel Williams. All rights reserved.
##
.text
# For older linkers
.globl _coroutine_transfer
_coroutine_transfer:
.globl coroutine_transfer
coroutine_transfer:
# Save caller state
pushq %rbp
pushq %rbx
pushq %r12
pushq %r13
pushq %r14
pushq %r15
# Save caller stack pointer
movq %rsp, (%rdi)
# Restore callee stack pointer
movq (%rsi), %rsp
# Restore callee stack
popq %r15
popq %r14
popq %r13
popq %r12
popq %rbx
popq %rbp
# Put the first argument into the return value
movq %rdi, %rax
# We pop the return address and jump to it
ret