All targets have been converted, so we can call init_main_thread
directly.  Remove do_init_main_thread and HAVE_INIT_MAIN_THREAD.

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 linux-user/loader.h  |  1 -
 linux-user/qemu.h    |  2 --
 linux-user/elfload.c | 46 --------------------------------------------
 linux-user/main.c    |  2 +-
 4 files changed, 1 insertion(+), 50 deletions(-)

diff --git a/linux-user/loader.h b/linux-user/loader.h
index b7dceb4abe..700bbdb02e 100644
--- a/linux-user/loader.h
+++ b/linux-user/loader.h
@@ -82,7 +82,6 @@ struct linux_binprm {
     int (*core_dump)(int, const CPUArchState *); /* coredump routine */
 };
 
-void do_init_main_thread(CPUState *cs, struct image_info *infop);
 abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
                               abi_ulong stringp, int push_ptr);
 int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 475b11e4c4..4c626f270c 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -365,8 +365,6 @@ void *lock_user_string(abi_ulong guest_addr);
 /* Clone cpu state */
 CPUArchState *cpu_copy(CPUArchState *env);
 
-typedef struct target_pt_regs target_pt_regs;
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs);
 void init_main_thread(CPUState *cs, struct image_info *info);
 
 #endif /* QEMU_H */
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 1276b57f0d..27682f0c81 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -155,8 +155,6 @@ typedef abi_int         target_pid_t;
 
 #ifdef TARGET_I386
 
-#define HAVE_INIT_MAIN_THREAD
-
 #ifdef TARGET_X86_64
 #define ELF_CLASS      ELFCLASS64
 #define ELF_ARCH       EM_X86_64
@@ -299,8 +297,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, 
const CPUX86State *en
 #define ELF_CLASS       ELFCLASS32
 #define EXSTACK_DEFAULT true
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define ELF_NREG    18
 typedef target_elf_greg_t  target_elf_gregset_t[ELF_NREG];
 
@@ -401,8 +397,6 @@ static const VdsoImageInfo *vdso_image_info(uint32_t 
elf_flags)
 #define ELF_ARCH        EM_AARCH64
 #define ELF_CLASS       ELFCLASS64
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define ELF_NREG    34
 typedef target_elf_greg_t  target_elf_gregset_t[ELF_NREG];
 
@@ -444,8 +438,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 # define ELF_ARCH   EM_SPARCV9
 #endif
 
-#define HAVE_INIT_MAIN_THREAD
-
 #endif /* TARGET_SPARC */
 
 #ifdef TARGET_PPC
@@ -491,8 +483,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
         NEW_AUX_ENT(AT_UCACHEBSIZE, 0);                 \
     } while (0)
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/powerpc/include/asm/elf.h.  */
 #define ELF_NREG 48
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -539,8 +529,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, 
const CPUPPCState *en
 
 #define VDSO_HEADER "vdso.c.inc"
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/loongarch/include/asm/elf.h */
 #define ELF_NREG 45
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -587,8 +575,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 #define elf_check_abi(x) (!((x) & EF_MIPS_ABI2))
 #endif
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/mips/include/asm/elf.h.  */
 #define ELF_NREG 45
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -646,8 +632,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, 
const CPUMIPSState *e
 #define ELF_CLASS   ELFCLASS32
 #define ELF_ARCH    EM_MICROBLAZE
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define ELF_EXEC_PAGESIZE        4096
 
 #define USE_ELF_CORE_DUMP
@@ -679,8 +663,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, 
const CPUMBState *env
 #define ELF_CLASS ELFCLASS32
 #define ELF_DATA  ELFDATA2MSB
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE 8192
 
@@ -707,8 +689,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 #define ELF_CLASS ELFCLASS32
 #define ELF_ARCH  EM_SH
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/sh/include/asm/elf.h.  */
 #define ELF_NREG 23
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -752,8 +732,6 @@ static inline void elf_core_copy_regs(target_elf_gregset_t 
*regs,
 #define ELF_CLASS       ELFCLASS32
 #define ELF_ARCH        EM_68K
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/m68k/include/asm/elf.h.  */
 #define ELF_NREG 20
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -792,8 +770,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, 
const CPUM68KState *e
 #define ELF_CLASS      ELFCLASS64
 #define ELF_ARCH       EM_ALPHA
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define ELF_EXEC_PAGESIZE        8192
 
 #endif /* TARGET_ALPHA */
@@ -804,8 +780,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, 
const CPUM68KState *e
 #define ELF_DATA       ELFDATA2MSB
 #define ELF_ARCH       EM_S390
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/s390/include/uapi/asm/ptrace.h (s390_regs).  */
 #define ELF_NREG 27
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -855,8 +829,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 #define VDSO_HEADER "vdso-64.c.inc"
 #endif
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define ELF_EXEC_PAGESIZE 4096
 
 #endif /* TARGET_RISCV */
@@ -870,8 +842,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 
 #define VDSO_HEADER "vdso.c.inc"
 
-#define HAVE_INIT_MAIN_THREAD
-
 #define LO_COMMPAGE  0
 
 static bool init_guest_commpage(void)
@@ -911,8 +881,6 @@ static bool init_guest_commpage(void)
 #define ELF_CLASS       ELFCLASS32
 #define ELF_ARCH        EM_XTENSA
 
-#define HAVE_INIT_MAIN_THREAD
-
 /* See linux kernel: arch/xtensa/include/asm/elf.h.  */
 #define ELF_NREG 128
 typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
@@ -960,8 +928,6 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs,
 #define ELF_CLASS       ELFCLASS32
 #define ELF_ARCH        EM_HEXAGON
 
-#define HAVE_INIT_MAIN_THREAD
-
 #endif /* TARGET_HEXAGON */
 
 #ifndef ELF_MACHINE
@@ -3454,15 +3420,3 @@ static int elf_core_dump(int signr, const CPUArchState 
*env)
     return ret;
 }
 #endif /* USE_ELF_CORE_DUMP */
-
-void do_init_main_thread(CPUState *cs, struct image_info *infop)
-{
-#ifdef HAVE_INIT_MAIN_THREAD
-    init_main_thread(cs, infop);
-#else
-    target_pt_regs regs = { };
-
-    init_thread(&regs, infop);
-    target_cpu_copy_regs(cpu_env(cs), &regs);
-#endif
-}
diff --git a/linux-user/main.c b/linux-user/main.c
index 121dc4a0e6..d962f344b8 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -1038,7 +1038,7 @@ int main(int argc, char **argv, char **envp)
        the real value of GUEST_BASE into account.  */
     tcg_prologue_init();
 
-    do_init_main_thread(cpu, info);
+    init_main_thread(cpu, info);
 
     if (gdbstub) {
         gdbserver_start(gdbstub, &error_fatal);
-- 
2.43.0


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