[Qemu-devel] [PATCH] Fix remaining compiler warnings for mips targets

[Stefan Weil]

This patch allows compilation of mips targets using compiler option -Werror.
I had to change these code locations to fix all compiler warnings:

* Move some declarations from target-mips/exec.h to target-mips/cpu.h.
* Use cpu_loop_exit() in cpu-exec.c (like other targets). This is also
an optimization.
* Declare several functions static in mips-dis.c and put unused code in
#if 0 ... #endif.
* Remove unused code in target-mips/helper.c.
* More code in target-mips/op_helper.c is only needed for system emulation.

The patch does not add the option -Werror because I noticed that
this was reverted for other Qemu targets (r6030).

Regards
Stefan Weil


fix remaining compiler warnings for mips targets

Signed-off-by: Stefan Weil <address@hidden>

Index: trunk/cpu-exec.c
===================================================================
--- trunk.orig/cpu-exec.c       2008-12-19 20:54:31.000000000 +0100
+++ trunk/cpu-exec.c    2008-12-19 20:54:40.000000000 +0100
@@ -1008,7 +1008,7 @@
     /* we restore the process signal mask as the sigreturn should
        do it (XXX: use sigsetjmp) */
         sigprocmask(SIG_SETMASK, old_set, NULL);
-        do_raise_exception_err(env->exception_index, env->error_code);
+        cpu_loop_exit();
     } else {
         /* activate soft MMU for this block */
         cpu_resume_from_signal(env, puc);
Index: trunk/target-mips/cpu.h
===================================================================
--- trunk.orig/target-mips/cpu.h        2008-12-19 20:54:31.000000000 +0100
+++ trunk/target-mips/cpu.h     2008-12-19 21:19:32.000000000 +0100
@@ -561,9 +561,26 @@
 
 int cpu_mips_exec(CPUMIPSState *s);
 CPUMIPSState *cpu_mips_init(const char *cpu_model);
-uint32_t cpu_mips_get_clock (void);
+//~ uint32_t cpu_mips_get_clock (void);
 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
 
+/* mips_timer.c */
+uint32_t cpu_mips_get_random (CPUState *env);
+uint32_t cpu_mips_get_count (CPUState *env);
+void cpu_mips_store_count (CPUState *env, uint32_t value);
+void cpu_mips_store_compare (CPUState *env, uint32_t value);
+void cpu_mips_start_count(CPUState *env);
+void cpu_mips_stop_count(CPUState *env);
+
+/* mips_int.c */
+void cpu_mips_update_irq (CPUState *env);
+
+/* helper.c */
+int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
+                               int mmu_idx, int is_softmmu);
+void do_interrupt (CPUState *env);
+void r4k_invalidate_tlb (CPUState *env, int idx, int use_extra);
+
 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
 {
     env->active_tc.PC = tb->pc;
Index: trunk/target-mips/exec.h
===================================================================
--- trunk.orig/target-mips/exec.h       2008-12-19 20:54:31.000000000 +0100
+++ trunk/target-mips/exec.h    2008-12-19 20:54:40.000000000 +0100
@@ -24,21 +24,6 @@
                     int (*fpu_fprintf)(FILE *f, const char *fmt, ...),
                     int flags);
 
-int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
-                               int mmu_idx, int is_softmmu);
-void do_interrupt (CPUState *env);
-void r4k_invalidate_tlb (CPUState *env, int idx, int use_extra);
-
-void do_raise_exception_err (uint32_t exception, int error_code);
-void do_raise_exception (uint32_t exception);
-
-uint32_t cpu_mips_get_random (CPUState *env);
-uint32_t cpu_mips_get_count (CPUState *env);
-void cpu_mips_store_count (CPUState *env, uint32_t value);
-void cpu_mips_store_compare (CPUState *env, uint32_t value);
-void cpu_mips_start_count(CPUState *env);
-void cpu_mips_stop_count(CPUState *env);
-void cpu_mips_update_irq (CPUState *env);
 void cpu_mips_clock_init (CPUState *env);
 void cpu_mips_tlb_flush (CPUState *env, int flush_global);
 
Index: trunk/mips-dis.c
===================================================================
--- trunk.orig/mips-dis.c       2008-12-19 20:54:31.000000000 +0100
+++ trunk/mips-dis.c    2008-12-19 20:54:40.000000000 +0100
@@ -3272,7 +3272,7 @@
   return c;
 }
 
-void
+static void
 set_default_mips_dis_options (struct disassemble_info *info)
 {
   const struct mips_arch_choice *chosen_arch;
@@ -3321,7 +3321,7 @@
 #endif
 }
 
-void
+static void
 parse_mips_dis_option (const char *option, unsigned int len)
 {
   unsigned int i, optionlen, vallen;
@@ -4809,7 +4809,6 @@
       abort ();
     }
 }
-#endif
 
 void
 print_mips_disassembler_options (FILE *stream)
@@ -4863,3 +4862,4 @@
 
   fprintf (stream, _("\n"));
 }
+#endif
Index: trunk/target-mips/helper.c
===================================================================
--- trunk.orig/target-mips/helper.c     2008-12-19 20:54:31.000000000 +0100
+++ trunk/target-mips/helper.c  2008-12-19 20:54:40.000000000 +0100
@@ -220,10 +220,6 @@
     }
 }
 
-void cpu_mips_init_mmu (CPUState *env)
-{
-}
-
 int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
                                int mmu_idx, int is_softmmu)
 {
Index: trunk/target-mips/op_helper.c
===================================================================
--- trunk.orig/target-mips/op_helper.c  2008-12-19 20:54:31.000000000 +0100
+++ trunk/target-mips/op_helper.c       2008-12-19 21:14:04.000000000 +0100
@@ -54,7 +54,8 @@
     }
 }
 
-void do_restore_state (void *pc_ptr)
+#if !defined(CONFIG_USER_ONLY)
+static void do_restore_state (void *pc_ptr)
 {
     TranslationBlock *tb;
     unsigned long pc = (unsigned long) pc_ptr;
@@ -64,6 +65,7 @@
         cpu_restore_state (tb, env, pc, NULL);
     }
 }
+#endif
 
 target_ulong do_clo (target_ulong t0)
 {
@@ -1356,7 +1358,6 @@
 {
     fprintf(logfile, "Raise pending IRQs\n");
 }
-#endif /* !CONFIG_USER_ONLY */
 
 /* MIPS MT functions */
 target_ulong do_mftgpr(uint32_t sel)
@@ -1495,6 +1496,7 @@
 
     return t0;
 }
+#endif /* !CONFIG_USER_ONLY */
 
 void do_fork(target_ulong t0, target_ulong t1)
 {