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Exports symbols to be shared with external GDB/JIT debugging interface tools.

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Windows O/S specific requirement.
This commit is contained in:
Steve
2021-09-20 15:04:51 +01:00
parent 87ff24a4aa
commit 8ec6511743
1 changed files with 14 additions and 2 deletions
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16
crates/runtime/src/helpers.c
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@@ -68,7 +68,14 @@ void wasmtime_longjmp(void *JmpBuf) {
// Note the `weak` linkage here, though, which is intended to let other code // Note the `weak` linkage here, though, which is intended to let other code
// override this symbol if it's defined elsewhere, since this definition doesn't // override this symbol if it's defined elsewhere, since this definition doesn't
// matter. // matter.
#ifndef CFG_TARGET_OS_windows
#ifdef CFG_TARGET_OS_windows
// export required for external access.
__declspec(dllexport)
#else
__attribute__((weak, noinline)) __attribute__((weak, noinline))
#endif #endif
void __jit_debug_register_code() { void __jit_debug_register_code() {
@@ -87,11 +94,16 @@ struct JITDescriptor {
// Note the `weak` linkage here which is the same purpose as above. We want to // Note the `weak` linkage here which is the same purpose as above. We want to
// let other runtimes be able to override this since our own definition isn't // let other runtimes be able to override this since our own definition isn't
// important. // important.
#ifndef CFG_TARGET_OS_windows #ifdef CFG_TARGET_OS_windows
// export required for external access.
__declspec(dllexport)
#else
__attribute__((weak)) __attribute__((weak))
#endif #endif
struct JITDescriptor __jit_debug_descriptor = {1, 0, NULL, NULL}; struct JITDescriptor __jit_debug_descriptor = {1, 0, NULL, NULL};
struct JITDescriptor* wasmtime_jit_debug_descriptor() { struct JITDescriptor* wasmtime_jit_debug_descriptor() {
return &__jit_debug_descriptor; return &__jit_debug_descriptor;
} }