geode/loader/dobby/source/TrampolineBridge/ClosureTrampolineBridge/x64/dummy/closure-bridge-template-x64.c
2022-07-30 19:24:03 +03:00

70 lines
No EOL
1.6 KiB
C

#if defined(ENABLE_CLOSURE_BRIDGE_TEMPLATE)
#if defined(__WIN32__) || defined(__APPLE__)
#define xcdecl(s) "_" s
#else
#define xcdecl(s) s
#endif
#define xASM(x) __asm(x)
__attribute__((naked)) void closure_bridge_template() {
// flags register
xASM("pushfq");
// general register
xASM("sub rsp, #(16*8)");
xASM("mov [rsp+16*0], rax");
xASM("mov [rsp+16*1], rbx");
xASM("mov [rsp+16*2], rcx");
xASM("mov [rsp+16*3], rdx");
xASM("mov [rsp+16*4], rbp");
xASM("mov [rsp+16*5], rsp");
xASM("mov [rsp+16*6], rdi");
xASM("mov [rsp+16*7], rsi");
xASM("mov [rsp+16*8], r8");
xASM("mov [rsp+16*9], r9");
xASM("mov [rsp+16*10], r10");
xASM("mov [rsp+16*11], r11");
xASM("mov [rsp+16*12], r12");
xASM("mov [rsp+16*13], r13");
xASM("mov [rsp+16*14], r14");
xASM("mov [rsp+16*15], r15");
// ======= Jump to UnifiedInterface Bridge Handle =======
// prepare args
// @rdi: data_address
// @rsi: RegisterContext stack address
xASM("mov rdi, rsp");
xASM("mov rsi, [rsp-16*8]");
xASM("call " xcdecl("intercept_routing_common_bridge_handler"));
// ======= RegisterContext Restore =======
// general register
xASM("pop r15");
xASM("pop r14");
xASM("pop r13");
xASM("pop r12");
xASM("pop r11");
xASM("pop r10");
xASM("pop r9");
xASM("pop r8");
xASM("pop rsi");
xASM("pop rdi");
xASM("pop rsp");
xASM("pop rbp");
xASM("pop rdx");
xASM("pop rcx");
xASM("pop rbx");
xASM("pop rax");
// flags register
xASM("popfq");
// trick: use the 'carry_data' placeholder, as the return address
xASM("ret");
};
#endif