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Add function hooks to mod symbol format

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This commit is contained in:
Mr-Wiseguy 2025-01-05 02:05:06 -05:00
parent 36b5d9ae33
commit 985c02e979
6 changed files with 106 additions and 6 deletions
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17
include/recompiler/context.h
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@ -85,6 +85,8 @@ namespace N64Recomp {
constexpr std::string_view EventSectionName = ".recomp_event";
constexpr std::string_view ImportSectionPrefix = ".recomp_import.";
constexpr std::string_view CallbackSectionPrefix = ".recomp_callback.";
constexpr std::string_view HookSectionPrefix = ".recomp_hook.";
constexpr std::string_view HookReturnSectionPrefix = ".recomp_hook_return.";
// Special dependency names.
constexpr std::string_view DependencySelf = ".";
@ -183,6 +185,19 @@ namespace N64Recomp {
ReplacementFlags flags;
};
enum class HookFlags : uint32_t {
AtReturn = 1 << 0,
};
inline HookFlags operator&(HookFlags lhs, HookFlags rhs) { return HookFlags(uint32_t(lhs) & uint32_t(rhs)); }
inline HookFlags operator|(HookFlags lhs, HookFlags rhs) { return HookFlags(uint32_t(lhs) | uint32_t(rhs)); }
struct FunctionHook {
uint32_t func_index;
uint32_t original_section_vrom;
uint32_t original_vram;
HookFlags flags;
};
class Context {
private:
//// Reference symbols (used for populating relocations for patches)
@ -236,6 +251,8 @@ namespace N64Recomp {
std::vector<Callback> callbacks;
// List of symbols from events, which contains the names of events that this context provides.
std::vector<EventSymbol> event_symbols;
// List of hooks, which contains the original function to hook and the function index to call at the hook.
std::vector<FunctionHook> hooks;
// Causes functions to print their name to the console the first time they're called.
bool trace_mode;