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Implement invalidation after cfunc

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This commit is contained in:
Takashi Kokubun 2023-02-10 11:43:53 -08:00
parent 494989e87e
commit aba530e23b
8 changed files with 143 additions and 78 deletions
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25
lib/ruby_vm/mjit/exit_compiler.rb
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@ -24,7 +24,8 @@ module RubyVM::MJIT
asm.ret
end
# @param ocb [CodeBlock]
# Set to cfp->jit_return by default for leave insn
# @param asm [RubyVM::MJIT::Assembler]
def compile_leave_exit(asm)
asm.comment('default cfp->jit_return')
@ -37,6 +38,28 @@ module RubyVM::MJIT
asm.ret
end
# Fire cfunc events on invalidation by TracePoint
# @param asm [RubyVM::MJIT::Assembler]
def compile_full_cfunc_return(asm)
# This chunk of code expects REG_EC to be filled properly and
# RAX to contain the return value of the C method.
asm.comment('full cfunc return')
asm.mov(C_ARG_OPNDS[0], EC)
asm.mov(C_ARG_OPNDS[1], :rax)
asm.call(C.rb_full_cfunc_return)
# TODO: count the exit
# Restore callee-saved registers
asm.pop(SP)
asm.pop(EC)
asm.pop(CFP)
asm.mov(:rax, Qundef)
asm.ret
end
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]