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