From: Richard Henderson <richard.henderson@linaro.org>
Date: Tue, 29 Jul 2025 08:03:03 +0000 (-1000)
Subject: linux-user/s390x: Create init_main_thread
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=592f36d13dd32d0a90f71266931a68f522617026;p=thirdparty%2Fqemu.git

linux-user/s390x: 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>
---

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index a7de852d4dd..16aa09214e8 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -798,14 +798,7 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUM68KState *e
 #define ELF_DATA	ELFDATA2MSB
 #define ELF_ARCH	EM_S390
 
-static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
-{
-    regs->psw.addr = infop->entry;
-    regs->psw.mask = PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | \
-                     PSW_MASK_MCHECK | PSW_MASK_PSTATE | PSW_MASK_64 | \
-                     PSW_MASK_32;
-    regs->gprs[15] = infop->start_stack;
-}
+#define HAVE_INIT_MAIN_THREAD
 
 /* See linux kernel: arch/s390/include/uapi/asm/ptrace.h (s390_regs).  */
 #define ELF_NREG 27
diff --git a/linux-user/s390x/cpu_loop.c b/linux-user/s390x/cpu_loop.c
index c9124444ed2..49e44548f85 100644
--- a/linux-user/s390x/cpu_loop.c
+++ b/linux-user/s390x/cpu_loop.c
@@ -180,12 +180,13 @@ void cpu_loop(CPUS390XState *env)
     }
 }
 
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
+void init_main_thread(CPUState *cs, struct image_info *info)
 {
-    int i;
-    for (i = 0; i < 16; i++) {
-        env->regs[i] = regs->gprs[i];
-    }
-    env->psw.mask = regs->psw.mask;
-    env->psw.addr = regs->psw.addr;
+    CPUArchState *env = cpu_env(cs);
+
+    env->psw.addr = info->entry;
+    env->psw.mask = PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT |
+                    PSW_MASK_MCHECK | PSW_MASK_PSTATE | PSW_MASK_64 |
+                    PSW_MASK_32;
+    env->regs[15] = info->start_stack;
 }