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[PATCH 3/4] linux-user: Fix XER access in ppc version of elf_core_copy_r
From: |
matheus . ferst |
Subject: |
[PATCH 3/4] linux-user: Fix XER access in ppc version of elf_core_copy_regs |
Date: |
Thu, 14 Oct 2021 19:32:33 -0300 |
From: Matheus Ferst <matheus.ferst@eldorado.org.br>
env->xer doesn't hold some bits of XER, like OV and CA. To write the
complete register in the core dump we should read XER value with
cpu_read_xer.
Reported-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Fixes: da91a00f191f ("target-ppc: Split out SO, OV, CA fields from XER")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
linux-user/elfload.c | 2 +-
target/ppc/cpu.c | 2 +-
target/ppc/cpu.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 01e9a833fb..e760786a98 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -896,7 +896,7 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
const CPUPPCState *en
(*regs)[33] = tswapreg(env->msr);
(*regs)[35] = tswapreg(env->ctr);
(*regs)[36] = tswapreg(env->lr);
- (*regs)[37] = tswapreg(env->xer);
+ (*regs)[37] = tswapreg(cpu_read_xer(env));
for (i = 0; i < ARRAY_SIZE(env->crf); i++) {
ccr |= env->crf[i] << (32 - ((i + 1) * 4));
diff --git a/target/ppc/cpu.c b/target/ppc/cpu.c
index 7ad9bd6044..f933d9f2bd 100644
--- a/target/ppc/cpu.c
+++ b/target/ppc/cpu.c
@@ -27,7 +27,7 @@
#include "helper_regs.h"
#include "sysemu/tcg.h"
-target_ulong cpu_read_xer(CPUPPCState *env)
+target_ulong cpu_read_xer(const CPUPPCState *env)
{
if (is_isa300(env)) {
return env->xer | (env->so << XER_SO) |
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 500205229c..67a143941f 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -2418,7 +2418,7 @@ enum {
/*****************************************************************************/
#define is_isa300(ctx) (!!(ctx->insns_flags2 & PPC2_ISA300))
-target_ulong cpu_read_xer(CPUPPCState *env);
+target_ulong cpu_read_xer(const CPUPPCState *env);
void cpu_write_xer(CPUPPCState *env, target_ulong xer);
/*
--
2.25.1