linux-user/sparc: Create init_main_thread

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>

2 files changed, 9 insertions, 19 deletions

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index f93afbdcea..887a3a1cb2 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -438,16 +438,8 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 # define ELF_ARCH   EM_SPARCV9
 #endif
 
-static inline void init_thread(struct target_pt_regs *regs,
-                               struct image_info *infop)
-{
-    /* Note that target_cpu_copy_regs does not read psr/tstate. */
-    regs->pc = infop->entry;
-    regs->npc = regs->pc + 4;
-    regs->y = 0;
-    regs->u_regs[14] = (infop->start_stack - 16 * sizeof(abi_ulong)
-                        - TARGET_STACK_BIAS);
-}
+#define HAVE_INIT_MAIN_THREAD
+
 #endif /* TARGET_SPARC */
 
 #ifdef TARGET_PPC
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 68f1e8ecd4..7d30cd1ff2 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -357,14 +357,12 @@ void cpu_loop (CPUSPARCState *env)
     }
 }
 
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
+void init_main_thread(CPUState *cs, struct image_info *info)
 {
-    int i;
-    env->pc = regs->pc;
-    env->npc = regs->npc;
-    env->y = regs->y;
-    for(i = 0; i < 8; i++)
-        env->gregs[i] = regs->u_regs[i];
-    for(i = 0; i < 8; i++)
-        env->regwptr[i] = regs->u_regs[i + 8];
+    CPUArchState *env = cpu_env(cs);
+
+    env->pc = info->entry;
+    env->npc = env->pc + 4;
+    env->regwptr[WREG_SP] = (info->start_stack - 16 * sizeof(abi_ulong)
+                             - TARGET_STACK_BIAS);
 }