diff options
Diffstat (limited to 'src/runtime/asm_arm64.s')
| -rw-r--r-- | src/runtime/asm_arm64.s | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/src/runtime/asm_arm64.s b/src/runtime/asm_arm64.s index 6b3d1e779e..141ed76624 100644 --- a/src/runtime/asm_arm64.s +++ b/src/runtime/asm_arm64.s @@ -1161,10 +1161,10 @@ TEXT ·checkASM(SB),NOSPLIT,$0-1 // It does not clobber any general-purpose registers, // but may clobber others (e.g., floating point registers) // The act of CALLing gcWriteBarrier will clobber R30 (LR). -TEXT runtime·gcWriteBarrier(SB),NOSPLIT,$216 +TEXT runtime·gcWriteBarrier(SB),NOSPLIT,$200 // Save the registers clobbered by the fast path. - MOVD R0, 200(RSP) - MOVD R1, 208(RSP) + MOVD R0, 184(RSP) + MOVD R1, 192(RSP) MOVD g_m(g), R0 MOVD m_p(R0), R0 MOVD (p_wbBuf+wbBuf_next)(R0), R1 @@ -1180,8 +1180,8 @@ TEXT runtime·gcWriteBarrier(SB),NOSPLIT,$216 // Is the buffer full? (flags set in CMP above) BEQ flush ret: - MOVD 200(RSP), R0 - MOVD 208(RSP), R1 + MOVD 184(RSP), R0 + MOVD 192(RSP), R1 // Do the write. MOVD R3, (R2) RET @@ -1205,17 +1205,16 @@ flush: MOVD R13, 96(RSP) MOVD R14, 104(RSP) MOVD R15, 112(RSP) - MOVD R16, 120(RSP) - MOVD R17, 128(RSP) + // R16, R17 may be clobbered by linker trampoline // R18 is unused. - MOVD R19, 136(RSP) - MOVD R20, 144(RSP) - MOVD R21, 152(RSP) - MOVD R22, 160(RSP) - MOVD R23, 168(RSP) - MOVD R24, 176(RSP) - MOVD R25, 184(RSP) - MOVD R26, 192(RSP) + MOVD R19, 120(RSP) + MOVD R20, 128(RSP) + MOVD R21, 136(RSP) + MOVD R22, 144(RSP) + MOVD R23, 152(RSP) + MOVD R24, 160(RSP) + MOVD R25, 168(RSP) + MOVD R26, 176(RSP) // R27 is temp register. // R28 is g. // R29 is frame pointer (unused). @@ -1239,16 +1238,14 @@ flush: MOVD 96(RSP), R13 MOVD 104(RSP), R14 MOVD 112(RSP), R15 - MOVD 120(RSP), R16 - MOVD 128(RSP), R17 - MOVD 136(RSP), R19 - MOVD 144(RSP), R20 - MOVD 152(RSP), R21 - MOVD 160(RSP), R22 - MOVD 168(RSP), R23 - MOVD 176(RSP), R24 - MOVD 184(RSP), R25 - MOVD 192(RSP), R26 + MOVD 120(RSP), R19 + MOVD 128(RSP), R20 + MOVD 136(RSP), R21 + MOVD 144(RSP), R22 + MOVD 152(RSP), R23 + MOVD 160(RSP), R24 + MOVD 168(RSP), R25 + MOVD 176(RSP), R26 JMP ret // Note: these functions use a special calling convention to save generated code space. |