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From: Greg Kurz <gkurz@linux.vnet.ibm.com>
Date: Fri, 15 Jan 2016 16:00:18 +0100
Subject: [PATCH] target-ppc: rename and export maybe_bswap_register()

This helper will be used to support FP, Altivec and VSX registers when
the guest is little-endian.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
(cherry picked from commit 376dbce0e3abe456fb8c7a3cd40dc369f8b33d30)
---
 target-ppc/cpu.h     |  1 +
 target-ppc/gdbstub.c | 10 +++++-----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index f15815f..d5a1a5f 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -2328,4 +2328,5 @@ int ppc_get_vcpu_dt_id(PowerPCCPU *cpu);
  */
 PowerPCCPU *ppc_get_vcpu_by_dt_id(int cpu_dt_id);
 
+void ppc_maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len);
 #endif /* !defined (__CPU_PPC_H__) */
diff --git a/target-ppc/gdbstub.c b/target-ppc/gdbstub.c
index 14675f4..b20bb0c 100644
--- a/target-ppc/gdbstub.c
+++ b/target-ppc/gdbstub.c
@@ -88,7 +88,7 @@ static int ppc_gdb_register_len(int n)
    the proper ordering for the binary, and cannot be changed.
    For system mode, TARGET_WORDS_BIGENDIAN is always set, and we must check
    the current mode of the chip to see if we're running in little-endian.  */
-static void maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len)
+void ppc_maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len)
 {
 #ifndef CONFIG_USER_ONLY
     if (!msr_le) {
@@ -158,7 +158,7 @@ int ppc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
             break;
         }
     }
-    maybe_bswap_register(env, mem_buf, r);
+    ppc_maybe_bswap_register(env, mem_buf, r);
     return r;
 }
 
@@ -214,7 +214,7 @@ int ppc_cpu_gdb_read_register_apple(CPUState *cs, uint8_t *mem_buf, int n)
             break;
         }
     }
-    maybe_bswap_register(env, mem_buf, r);
+    ppc_maybe_bswap_register(env, mem_buf, r);
     return r;
 }
 
@@ -227,7 +227,7 @@ int ppc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
     if (!r) {
         return r;
     }
-    maybe_bswap_register(env, mem_buf, r);
+    ppc_maybe_bswap_register(env, mem_buf, r);
     if (n < 32) {
         /* gprs */
         env->gpr[n] = ldtul_p(mem_buf);
@@ -277,7 +277,7 @@ int ppc_cpu_gdb_write_register_apple(CPUState *cs, uint8_t *mem_buf, int n)
     if (!r) {
         return r;
     }
-    maybe_bswap_register(env, mem_buf, r);
+    ppc_maybe_bswap_register(env, mem_buf, r);
     if (n < 32) {
         /* gprs */
         env->gpr[n] = ldq_p(mem_buf);