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Start implementing exception handling by adding frame descriptor entry processing.

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- Soon, we should be able basic exceptions.
This commit is contained in:
Lachlan Sneff
2019-03-02 10:56:02 -08:00
parent 87ddf4f855
commit 5760f6006a
7 changed files with 68 additions and 49 deletions
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6
lib/llvm-backend/cpp/object_loader.hh
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@@ -21,6 +21,8 @@ typedef result_t (*alloc_memory_t)(size_t size, mem_protect_t protect, uint8_t**
typedef result_t (*protect_memory_t)(uint8_t* ptr, size_t size, mem_protect_t protect);
typedef result_t (*dealloc_memory_t)(uint8_t* ptr, size_t size);
typedef uintptr_t (*lookup_vm_symbol_t)(const char* name_ptr, size_t length);
typedef void (*fde_visitor_t)(uint8_t *fde);
typedef result_t (*visit_fde_t)(uint8_t *fde, size_t size, fde_visitor_t visitor);
typedef struct {
/* Memory management. */
@@ -29,6 +31,8 @@ typedef struct {
dealloc_memory_t dealloc_memory;
lookup_vm_symbol_t lookup_vm_symbol;
visit_fde_t visit_fde;
} callbacks_t;
class WasmModule {
@@ -41,7 +45,7 @@ public:
void *get_func(llvm::StringRef name) const;
private:
llvm::RuntimeDyld::MemoryManager* memory_manager;
std::unique_ptr<llvm::RuntimeDyld::MemoryManager> memory_manager;
std::unique_ptr<llvm::object::ObjectFile> object_file;
std::unique_ptr<llvm::RuntimeDyld> runtime_dyld;
};