diff options
Diffstat (limited to 'src/runtime/sys_windows_arm64.s')
| -rw-r--r-- | src/runtime/sys_windows_arm64.s | 53 |
1 files changed, 13 insertions, 40 deletions
diff --git a/src/runtime/sys_windows_arm64.s b/src/runtime/sys_windows_arm64.s index 87f8f0d218..7b1514f552 100644 --- a/src/runtime/sys_windows_arm64.s +++ b/src/runtime/sys_windows_arm64.s @@ -7,6 +7,7 @@ #include "textflag.h" #include "funcdata.h" #include "time_windows.h" +#include "cgo/abi_arm64.h" // Offsets into Thread Environment Block (pointer in R18) #define TEB_error 0x68 @@ -128,30 +129,6 @@ TEXT runtime·getlasterror(SB),NOSPLIT|NOFRAME,$0 MOVD R0, ret+0(FP) RET -#define SAVE_R19_TO_R28(offset) \ - MOVD R19, savedR19+((offset)+0*8)(SP); \ - MOVD R20, savedR20+((offset)+1*8)(SP); \ - MOVD R21, savedR21+((offset)+2*8)(SP); \ - MOVD R22, savedR22+((offset)+3*8)(SP); \ - MOVD R23, savedR23+((offset)+4*8)(SP); \ - MOVD R24, savedR24+((offset)+5*8)(SP); \ - MOVD R25, savedR25+((offset)+6*8)(SP); \ - MOVD R26, savedR26+((offset)+7*8)(SP); \ - MOVD R27, savedR27+((offset)+8*8)(SP); \ - MOVD g, savedR28+((offset)+9*8)(SP); - -#define RESTORE_R19_TO_R28(offset) \ - MOVD savedR19+((offset)+0*8)(SP), R19; \ - MOVD savedR20+((offset)+1*8)(SP), R20; \ - MOVD savedR21+((offset)+2*8)(SP), R21; \ - MOVD savedR22+((offset)+3*8)(SP), R22; \ - MOVD savedR23+((offset)+4*8)(SP), R23; \ - MOVD savedR24+((offset)+5*8)(SP), R24; \ - MOVD savedR25+((offset)+6*8)(SP), R25; \ - MOVD savedR26+((offset)+7*8)(SP), R26; \ - MOVD savedR27+((offset)+8*8)(SP), R27; \ - MOVD savedR28+((offset)+9*8)(SP), g; /* R28 */ - // Called by Windows as a Vectored Exception Handler (VEH). // First argument is pointer to struct containing // exception record and context pointers. @@ -221,7 +198,8 @@ TEXT sigtramp_g0<>(SB),NOSPLIT,$128 NO_LOCAL_POINTERS // Push C callee-save registers R19-R28. LR, FP already saved. - SAVE_R19_TO_R28(-10*8) + // These registers will occupy the upper 10 words of the frame. + SAVE_R19_TO_R28(8*7) MOVD 0(R0), R5 // R5 = ExceptionPointers->ExceptionRecord MOVD 8(R0), R6 // R6 = ExceptionPointers->ContextRecord @@ -275,7 +253,7 @@ TEXT sigtramp_g0<>(SB),NOSPLIT,$128 MOVD R2, context_pc(R6) return: - RESTORE_R19_TO_R28(-10*8) // smashes g + RESTORE_R19_TO_R28(8*7) // smashes g RET // Trampoline to resume execution from exception handler. @@ -317,18 +295,14 @@ TEXT runtime·callbackasm1(SB),NOSPLIT,$208-0 // but we are not called from Go so that space is ours to use, // and we must to be contiguous with the stack arguments. MOVD $arg0-(7*8)(SP), R14 - MOVD R0, (0*8)(R14) - MOVD R1, (1*8)(R14) - MOVD R2, (2*8)(R14) - MOVD R3, (3*8)(R14) - MOVD R4, (4*8)(R14) - MOVD R5, (5*8)(R14) - MOVD R6, (6*8)(R14) - MOVD R7, (7*8)(R14) + STP (R0, R1), (0*8)(R14) + STP (R2, R3), (2*8)(R14) + STP (R4, R5), (4*8)(R14) + STP (R6, R7), (6*8)(R14) // Push C callee-save registers R19-R28. // LR, FP already saved. - SAVE_R19_TO_R28(-18*8) + SAVE_R19_TO_R28(8*9) // Create a struct callbackArgs on our stack. MOVD $cbargs-(18*8+callbackArgs__size)(SP), R13 @@ -342,8 +316,7 @@ TEXT runtime·callbackasm1(SB),NOSPLIT,$208-0 MOVD $·callbackWrap<ABIInternal>(SB), R0 // PC of function to call, cgocallback takes an ABIInternal entry-point MOVD R13, R1 // frame (&callbackArgs{...}) MOVD $0, R2 // context - MOVD R0, (1*8)(RSP) - MOVD R1, (2*8)(RSP) + STP (R0, R1), (1*8)(RSP) MOVD R2, (3*8)(RSP) BL runtime·cgocallback(SB) @@ -351,13 +324,13 @@ TEXT runtime·callbackasm1(SB),NOSPLIT,$208-0 MOVD $cbargs-(18*8+callbackArgs__size)(SP), R13 MOVD callbackArgs_result(R13), R0 - RESTORE_R19_TO_R28(-18*8) + RESTORE_R19_TO_R28(8*9) RET // uint32 tstart_stdcall(M *newm); TEXT runtime·tstart_stdcall(SB),NOSPLIT,$96-0 - SAVE_R19_TO_R28(-10*8) + SAVE_R19_TO_R28(8*3) MOVD m_g0(R0), g MOVD R0, g_m(g) @@ -374,7 +347,7 @@ TEXT runtime·tstart_stdcall(SB),NOSPLIT,$96-0 BL runtime·emptyfunc(SB) // fault if stack check is wrong BL runtime·mstart(SB) - RESTORE_R19_TO_R28(-10*8) + RESTORE_R19_TO_R28(8*3) // Exit the thread. MOVD $0, R0 |