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ARM64: Add support for ARM64e pointer authentication codes (PAC).

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Contributed by Peter Cawley. #559
This commit is contained in:
Mike Pall
2023-08-12 22:25:40 +02:00
parent 117ddf35e6
commit 27af72e66f
15 changed files with 118 additions and 33 deletions
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6
src/lj_asm_arm64.h
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@@ -421,8 +421,8 @@ static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
uint32_t n, nargs = CCI_XNARGS(ci);
int32_t ofs = 0;
Reg gpr, fpr = REGARG_FIRSTFPR;
if ((void *)ci->func)
emit_call(as, (void *)ci->func);
if (ci->func)
emit_call(as, ci->func);
for (gpr = REGARG_FIRSTGPR; gpr <= REGARG_LASTGPR; gpr++)
as->cost[gpr] = REGCOST(~0u, ASMREF_L);
gpr = REGARG_FIRSTGPR;
@@ -501,7 +501,7 @@ static void asm_callx(ASMState *as, IRIns *ir)
ci.func = (ASMFunction)(ir_k64(irf)->u64);
} else { /* Need a non-argument register for indirect calls. */
Reg freg = ra_alloc1(as, func, RSET_RANGE(RID_X8, RID_MAX_GPR)-RSET_FIXED);
emit_n(as, A64I_BLR, freg);
emit_n(as, A64I_BLR_AUTH, freg);
ci.func = (ASMFunction)(void *)0;
}
asm_gencall(as, &ci, args);