[PATCH v2 29/95] linux-user/aarch64: Create init_main_thread

[Richard Henderson]

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

Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 linux-user/aarch64/cpu_loop.c | 14 ++++++--------
 linux-user/elfload.c          | 10 +---------
 2 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c
index 030a630c93..4c4921152e 100644
--- a/linux-user/aarch64/cpu_loop.c
+++ b/linux-user/aarch64/cpu_loop.c
@@ -137,10 +137,10 @@ void cpu_loop(CPUARMState *env)
     }
 }
 
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
+void init_main_thread(CPUState *cs, struct image_info *info)
 {
+    CPUARMState *env = cpu_env(cs);
     ARMCPU *cpu = env_archcpu(env);
-    int i;
 
     if (!(arm_feature(env, ARM_FEATURE_AARCH64))) {
         fprintf(stderr,
@@ -148,14 +148,12 @@ void target_cpu_copy_regs(CPUArchState *env, 
target_pt_regs *regs)
         exit(EXIT_FAILURE);
     }
 
-    for (i = 0; i < 31; i++) {
-        env->xregs[i] = regs->regs[i];
-    }
-    env->pc = regs->pc;
-    env->xregs[31] = regs->sp;
+    env->pc = info->entry & ~0x3ULL;
+    env->xregs[31] = info->start_stack;
+
 #if TARGET_BIG_ENDIAN
     env->cp15.sctlr_el[1] |= SCTLR_E0E;
-    for (i = 1; i < 4; ++i) {
+    for (int i = 1; i < 4; ++i) {
         env->cp15.sctlr_el[i] |= SCTLR_EE;
     }
     arm_rebuild_hflags(env);
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 9586873954..f93afbdcea 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -395,15 +395,7 @@ static const VdsoImageInfo *vdso_image_info(uint32_t 
elf_flags)
 #define ELF_ARCH        EM_AARCH64
 #define ELF_CLASS       ELFCLASS64
 
-static inline void init_thread(struct target_pt_regs *regs,
-                               struct image_info *infop)
-{
-    abi_long stack = infop->start_stack;
-    memset(regs, 0, sizeof(*regs));
-
-    regs->pc = infop->entry & ~0x3ULL;
-    regs->sp = stack;
-}
+#define HAVE_INIT_MAIN_THREAD
 
 #define ELF_NREG    34
 typedef target_elf_greg_t  target_elf_gregset_t[ELF_NREG];
-- 
2.43.0