Use Windows-compatible setjmp/longjmp in the JIT

Reviewed By: tmikov Differential Revision: D66022131 fbshipit-source-id: 263117fb1122f5d25bf65c998c922638d0bb82c2
facebook · Nov 23, 2024 · f6779f9 · f6779f9
1 parent ba4c854
commit f6779f9
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/lib/VM/JIT/arm64/JIT.cpp b/lib/VM/JIT/arm64/JIT.cpp
@@ -100,7 +100,7 @@ class JITContext::Compiler {
             [this](std::string &&message) {
               otherErrorMessage_ = std::move(message);
               error_ = Error::Other;
-              _longjmp(errorJmpBuf_, 1);
+              _sh_longjmp(errorJmpBuf_, 1);
             }),
         codeBlock_(codeBlock),
         funcStart_((const char *)codeBlock->begin()) {}
@@ -187,7 +187,7 @@ JITCompiledFunctionPtr JITContext::compileImpl(
 }
 
 JITCompiledFunctionPtr JITContext::Compiler::compileCodeBlock() {
-  if (_setjmp(errorJmpBuf_) == 0) {
+  if (_sh_setjmp(errorJmpBuf_) == 0) {
     return compileCodeBlockImpl();
   } else {
     // We arrive here on error.
@@ -291,7 +291,7 @@ JITCompiledFunctionPtr JITContext::Compiler::compileCodeBlockImpl() {
 #define EMIT_UNIMPLEMENTED(name)                                               \
   inline void JITContext::Compiler::emit##name(const inst::name##Inst *inst) { \
     error_ = Error::UnsupportedInst;                                           \
-    _longjmp(errorJmpBuf_, 1);                                                 \
+    _sh_longjmp(errorJmpBuf_, 1);                                              \
   }
 
 EMIT_UNIMPLEMENTED(GetEnvironment)

diff --git a/lib/VM/JIT/arm64/JitEmitter.cpp b/lib/VM/JIT/arm64/JitEmitter.cpp
@@ -864,7 +864,7 @@ void Emitter::frameSetup(
     a.add(a64::x0, a64::sp, jmpBufOffset + offsetof(SHJmpBuf, buf));
     // setjmp can't throw and it'll be called once, so don't use a thunk.
     EMIT_RUNTIME_CALL_WITHOUT_THUNK_AND_SAVED_IP(
-        *this, int (*)(jmp_buf), _setjmp);
+        *this, int (*)(jmp_buf), _sh_setjmp);
     // If this a catch, go to the catch table to jump to either a handler BB or
     // rethrow.
     a.cbnz(a64::x0, catchTableLabel_);