mirror of
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103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
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#if defined(ENABLE_CLOSURE_BRIDGE_TEMPLATE)
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#if defined(__WIN32__) || defined(__APPLE__)
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#define xcdecl(s) "_" s
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#else
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#define xcdecl(s) s
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#endif
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#define xASM(x) __asm(x)
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__attribute__((naked)) void closure_bridge_template() {
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// DO NOT USE prologue
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// x29 == fp, x30 == lr
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// xASM("stp x29, x30, [sp, #-16]!");
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// xASM("mov x29, sp");
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// save {q0-q7}
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xASM("sub sp, sp, #(8*16)");
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xASM("stp q6, q7, [sp, #(6*16)]");
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xASM("stp q4, q5, [sp, #(4*16)]");
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xASM("stp q2, q3, [sp, #(2*16)]");
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xASM("stp q0, q1, [sp, #(0*16)]");
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// save {x1-x30}
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xASM("sub sp, sp, #(30*8)");
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// stp fp, lr, [sp, #(28*8)]");
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xASM("stp x29, x30, [sp, #(28*8)]");
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xASM("stp x27, x28, [sp, #(26*8)]");
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xASM("stp x25, x26, [sp, #(24*8)]");
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xASM("stp x23, x24, [sp, #(22*8)]");
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xASM("stp x21, x22, [sp, #(20*8)]");
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xASM("stp x19, x20, [sp, #(18*8)]");
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xASM("stp x17, x18, [sp, #(16*8)]");
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xASM("stp x15, x16, [sp, #(14*8)]");
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xASM("stp x13, x14, [sp, #(12*8)]");
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xASM("stp x11, x12, [sp, #(10*8)]");
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xASM("stp x9, x10, [sp, #(8*8)]");
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xASM("stp x7, x8, [sp, #(6*8)]");
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xASM("stp x5, x6, [sp, #(4*8)]");
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xASM("stp x3, x4, [sp, #(2*8)]");
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xASM("stp x1, x2, [sp, #(0*8)]");
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#if 1
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// save {x0}
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xASM("sub sp, sp, #(2*8)");
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xASM("str x0, [sp, #8]");
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#else
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// save {x0, sp}
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// save x0 and reserve sp, but this is trick
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xASM("sub sp, sp, #(2*8)");
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xASM("str x0, [sp, #8]");
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// save origin sp
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xASM("add x1, sp, #0x190");
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xASM("str x1, [sp, #0]");
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#endif
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// ======= Jump to UnifiedInterface Bridge Handle =======
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// prepare args
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// @x0: data_address
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// @x1: RegisterContext stack address
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xASM("mov x0, sp");
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xASM("mov x1, x14");
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xASM("bl " xcdecl("intercept_routing_common_bridge_handler"));
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// ======= RegisterContext Restore =======
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// restore x0
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xASM("ldr x0, [sp, #8]");
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xASM("add sp, sp, #(2*8)");
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// restore {x1-x30}
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xASM("ldp x1, x2, [sp], #16");
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xASM("ldp x3, x4, [sp], #16");
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xASM("ldp x5, x6, [sp], #16");
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xASM("ldp x7, x8, [sp], #16");
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xASM("ldp x9, x10, [sp], #16");
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xASM("ldp x11, x12, [sp], #16");
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xASM("ldp x13, x14, [sp], #16");
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xASM("ldp x15, x16, [sp], #16");
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xASM("ldp x17, x18, [sp], #16");
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xASM("ldp x19, x20, [sp], #16");
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xASM("ldp x21, x22, [sp], #16");
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xASM("ldp x23, x24, [sp], #16");
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xASM("ldp x25, x26, [sp], #16");
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xASM("ldp x27, x28, [sp], #16");
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// ldp fp, lr, [sp], #16");
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xASM("ldp x29, x30, [sp], #16");
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// restore {q0-q7}
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xASM("ldp q0, q1, [sp], #32");
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xASM("ldp q2, q3, [sp], #32");
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xASM("ldp q4, q5, [sp], #32");
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xASM("ldp q6, q7, [sp], #32");
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// DO NOT USE epilog
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// x29 == fp, x30 == lr
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// xASM("mov sp, x29");
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// xASM("ldp x29, x30, [sp], #16");
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xASM("br x15");
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};
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#endif
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