dyninst/SOURCES/dyninst-11.0.0-aarch64.patch
2022-01-11 18:11:31 +00:00

66 lines
2.7 KiB
Diff

rhbz1993578
commit 874a73ea4 (HEAD -> master, upstream/master)
Author: Stan Cox <scox@redhat.com>
Date: Mon Nov 1 14:24:07 2021 -0400
Don't overflow aarch64 float register vector when setting used regs. (#1127)
Do not include the subtype when setting a float register as a used register if the registerSlot vector would be exceeded, e.g. for a value like 0x400 (Q_REG/register 0).
--- dyninst-11.0.0/dyninstAPI/src/inst-aarch64.C.orig
+++ dyninst-11.0.0/dyninstAPI/src/inst-aarch64.C
@@ -551,8 +551,13 @@ bool EmitterAARCH64::clobberAllFuncCall(registerSpace *rs,
rs->GPRs()[*itr]->beenUsed = true;
std::set<Register> *fpRegs = callee->ifunc()->usedFPRs();
- for(std::set<Register>::iterator itr = fpRegs->begin(); itr != fpRegs->end(); itr++)
- rs->FPRs()[*itr]->beenUsed = true;
+ for(std::set<Register>::iterator itr = fpRegs->begin(); itr != fpRegs->end(); itr++) {
+ if (*itr <= rs->FPRs().size())
+ rs->FPRs()[*itr]->beenUsed = true;
+ else
+ // parse_func::calcUsedRegs includes the subtype; we only want the regno
+ rs->FPRs()[*itr & 0xff]->beenUsed = true;
+ }
} else {
for(int idx = 0; idx < rs->numGPRs(); idx++)
rs->GPRs()[idx]->beenUsed = true;
commit b2c892f55
Author: Stan Cox <scox@redhat.com>
Date: Tue Oct 26 17:43:14 2021 -0400
Load callee's address when the callee and caller are in the same module (#1056)
If the callee and caller are in the same module and pic is not
required then the callee's address can be loaded directly without
using a relocation.
--- dyninst-11.0.0/dyninstAPI/src/inst-aarch64.C.orig
+++ dyninst-11.0.0/dyninstAPI/src/inst-aarch64.C
@@ -651,12 +651,14 @@ Register EmitterAARCH64::emitCall(opCode op,
assert(gen.rs());
- //Address of function to call in scratch register
+ // Address of function to call in scratch register
Register scratch = gen.rs()->getScratchRegister(gen);
assert(scratch != REG_NULL && "cannot get a scratch register");
gen.markRegDefined(scratch);
- if (gen.addrSpace()->edit() != NULL) {
+ if (gen.addrSpace()->edit() != NULL
+ && (gen.func()->obj() != callee->obj()
+ || gen.addrSpace()->needsPIC())) {
// gen.as.edit() checks if we are in rewriter mode
Address dest = getInterModuleFuncAddr(callee, gen);
@@ -666,7 +668,6 @@ Register EmitterAARCH64::emitCall(opCode op,
instruction insn;
insn.clear();
INSN_SET(insn, 31, 31, 0);
- //INSN_SET(insn, 29, 30, disp & 0x3);
INSN_SET(insn, 28, 28, 1);
INSN_SET(insn, 5, 23, disp >> 2);
INSN_SET(insn, 0, 4, scratch);