diff options
Diffstat (limited to 'src/cmd/5l/noop.c')
| -rw-r--r-- | src/cmd/5l/noop.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/cmd/5l/noop.c b/src/cmd/5l/noop.c index a5e66f038..bdcc3cad8 100644 --- a/src/cmd/5l/noop.c +++ b/src/cmd/5l/noop.c @@ -364,14 +364,14 @@ noops(void) p = appendp(p); p->as = ABL; p->scond = C_SCOND_LO; - p->to.type = D_BRANCH; + p->to.type = D_BRANCH; p->to.sym = symmorestack; p->cond = pmorestack; // MOVW.W R14,$-autosize(SP) p = appendp(p); p->as = AMOVW; - p->scond |= C_WBIT; + p->scond |= C_WBIT; p->from.type = D_REG; p->from.reg = REGLINK; p->to.type = D_OREG; @@ -413,14 +413,14 @@ noops(void) // BL runtime.morestack(SB) // modifies LR p = appendp(p); p->as = ABL; - p->to.type = D_BRANCH; + p->to.type = D_BRANCH; p->to.sym = symmorestack; p->cond = pmorestack; // MOVW.W R14,$-autosize(SP) p = appendp(p); p->as = AMOVW; - p->scond |= C_WBIT; + p->scond |= C_WBIT; p->from.type = D_REG; p->from.reg = REGLINK; p->to.type = D_OREG; @@ -450,6 +450,8 @@ noops(void) } } if(thumb){ + diag("thumb not maintained"); + errorexit(); if(cursym->text->mark & LEAF){ if(autosize){ p->as = AADD; @@ -481,7 +483,7 @@ noops(void) q->to.type = D_REG; q->to.reg = REGSP; q->link = p->link; - p->link = q; + p->link = q; } else q = p; @@ -492,6 +494,8 @@ noops(void) break; } if(foreign) { + diag("foreign not maintained"); + errorexit(); // if(foreign) print("ABXRET 3 %s\n", cursym->name); #define R 1 p->as = AMOVW; @@ -530,7 +534,9 @@ noops(void) p->from.reg = REGSP; p->to.type = D_REG; p->to.reg = REGPC; - // no spadj because it doesn't fall through + // If there are instructions following + // this ARET, they come from a branch + // with the same stackframe, so no spadj. } break; |