diff options
Diffstat (limited to 'src/runtime/asm_mips64x.s')
| -rw-r--r-- | src/runtime/asm_mips64x.s | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/runtime/asm_mips64x.s b/src/runtime/asm_mips64x.s index b2e2384c36..f3ac453d99 100644 --- a/src/runtime/asm_mips64x.s +++ b/src/runtime/asm_mips64x.s @@ -384,6 +384,22 @@ CALLFN(·call1073741824, 1073741824) TEXT runtime·procyield(SB),NOSPLIT,$0-0 RET +// void jmpdefer(fv, sp); +// called from deferreturn. +// 1. grab stored LR for caller +// 2. sub 8 bytes to get back to JAL deferreturn +// 3. JMP to fn +TEXT runtime·jmpdefer(SB), NOSPLIT|NOFRAME, $0-16 + MOVV 0(R29), R31 + ADDV $-8, R31 + + MOVV fv+0(FP), REGCTXT + MOVV argp+8(FP), R29 + ADDV $-8, R29 + NOR R0, R0 // prevent scheduling + MOVV 0(REGCTXT), R4 + JMP (R4) + // Save state of caller into g->sched, // but using fake PC from systemstack_switch. // Must only be called from functions with no locals ($0) |