[PULL 31/46] linux-user/ppc: Create init_main_thread

[Richard Henderson <richard.henderson@linaro.org>]

Merge init_thread and target_cpu_copy_regs.
There's no point going through a target_pt_regs intermediate.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/elfload.c      | 17 +----------------
 linux-user/ppc/cpu_loop.c | 26 ++++++++++++++++++--------
 2 files changed, 19 insertions(+), 24 deletions(-)

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 887a3a1cb2..a30431c7a2 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -485,22 +485,7 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
         NEW_AUX_ENT(AT_UCACHEBSIZE, 0);                 \
     } while (0)
 
-static inline void init_thread(struct target_pt_regs *_regs, struct image_info *infop)
-{
-    _regs->gpr[1] = infop->start_stack;
-#if defined(TARGET_PPC64)
-    if (get_ppc64_abi(infop) < 2) {
-        uint64_t val;
-        get_user_u64(val, infop->entry + 8);
-        _regs->gpr[2] = val + infop->load_bias;
-        get_user_u64(val, infop->entry);
-        infop->entry = val + infop->load_bias;
-    } else {
-        _regs->gpr[12] = infop->entry;  /* r12 set to global entry address */
-    }
-#endif
-    _regs->nip = infop->entry;
-}
+#define HAVE_INIT_MAIN_THREAD
 
 /* See linux kernel: arch/powerpc/include/asm/elf.h.  */
 #define ELF_NREG 48
diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index 2a0efaffcd..22885ffd90 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -378,21 +378,31 @@ void cpu_loop(CPUPPCState *env)
     }
 }
 
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
+void init_main_thread(CPUState *cs, struct image_info *info)
 {
-    int i;
+    CPUArchState *env = cpu_env(cs);
+    abi_ptr entry = info->entry;
+
+    env->gpr[1] = info->start_stack;
+
+#ifdef TARGET_PPC64
+    if (get_ppc64_abi(info) < 2) {
+        uint64_t val;
+        get_user_u64(val, entry + 8);
+        env->gpr[2] = val + info->load_bias;
+        get_user_u64(val, entry);
+        entry = val + info->load_bias;
+    } else {
+        env->gpr[12] = entry;  /* r12 set to global entry address */
+    }
 
-#if defined(TARGET_PPC64)
     int flag = (env->insns_flags2 & PPC2_BOOKE206) ? MSR_CM : MSR_SF;
 #if defined(TARGET_ABI32)
     ppc_store_msr(env, env->msr & ~((target_ulong)1 << flag));
 #else
     ppc_store_msr(env, env->msr | (target_ulong)1 << flag);
 #endif
-#endif
+#endif /* TARGET_PPC64 */
 
-    env->nip = regs->nip;
-    for(i = 0; i < 32; i++) {
-        env->gpr[i] = regs->gpr[i];
-    }
+    env->nip = entry;
 }
-- 
2.43.0