-no-fd-bootchk option (Lonnie Mendez)

[qemu.git] / disas.c

diff --git a/disas.c b/disas.c
index 7005716c15a3e28124fe8b828365550de8d0a5cc..c38da08fd1069d4632b1ebcb36357e8f414bf801 100644 (file)
--- a/disas.c
+++ b/disas.c
@@ -73,7 +73,7 @@ generic_print_address (addr, info)
      bfd_vma addr;
      struct disassemble_info *info;
 {
-  (*info->fprintf_func) (info->stream, "0x%llx", addr);
+    (*info->fprintf_func) (info->stream, "0x%llx", addr);
 }
 
 /* Just return the given address.  */
@@ -108,8 +108,39 @@ bfd_vma bfd_getb32 (const bfd_byte *addr)
   return (bfd_vma) v;
 }
 
-/* Disassemble this for me please... (debugging). 'flags' is only used
-   for i386: non zero means 16 bit code */
+bfd_vma bfd_getl16 (const bfd_byte *addr)
+{
+  unsigned long v;
+
+  v = (unsigned long) addr[0];
+  v |= (unsigned long) addr[1] << 8;
+  return (bfd_vma) v;
+}
+
+bfd_vma bfd_getb16 (const bfd_byte *addr)
+{
+  unsigned long v;
+
+  v = (unsigned long) addr[0] << 24;
+  v |= (unsigned long) addr[1] << 16;
+  return (bfd_vma) v;
+}
+
+#ifdef TARGET_ARM
+static int
+print_insn_thumb1(bfd_vma pc, disassemble_info *info)
+{
+  return print_insn_arm(pc | 1, info);
+}
+#endif
+
+/* Disassemble this for me please... (debugging). 'flags' has teh following
+   values:
+    i386 - nonzero means 16 bit code
+    arm  - nonzero means thumb code 
+    ppc  - nonzero means little endian
+    other targets - unused
+ */
 void target_disas(FILE *out, target_ulong code, target_ulong size, int flags)
 {
     target_ulong pc;
@@ -137,11 +168,35 @@ void target_disas(FILE *out, target_ulong code, target_ulong size, int flags)
         disasm_info.mach = bfd_mach_i386_i386;
     print_insn = print_insn_i386;
 #elif defined(TARGET_ARM)
-    print_insn = print_insn_arm;
+    if (flags)
+       print_insn = print_insn_thumb1;
+    else
+       print_insn = print_insn_arm;
 #elif defined(TARGET_SPARC)
     print_insn = print_insn_sparc;
+#ifdef TARGET_SPARC64
+    disasm_info.mach = bfd_mach_sparc_v9b;
+#endif    
 #elif defined(TARGET_PPC)
+    if (flags)
+        disasm_info.endian = BFD_ENDIAN_LITTLE;
+#ifdef TARGET_PPC64
+    disasm_info.mach = bfd_mach_ppc64;
+#else
+    disasm_info.mach = bfd_mach_ppc;
+#endif
     print_insn = print_insn_ppc;
+#elif defined(TARGET_MIPS)
+#ifdef TARGET_WORDS_BIGENDIAN
+    print_insn = print_insn_big_mips;
+#else
+    print_insn = print_insn_little_mips;
+#endif
+#elif defined(TARGET_M68K)
+    print_insn = print_insn_m68k;
+#elif defined(TARGET_SH4)
+    disasm_info.mach = bfd_mach_sh4;
+    print_insn = print_insn_sh;
 #else
     fprintf(out, "0x" TARGET_FMT_lx
            ": Asm output not supported on this arch\n", code);
@@ -202,6 +257,12 @@ void disas(FILE *out, void *code, unsigned long size)
     print_insn = print_insn_sparc;
 #elif defined(__arm__) 
     print_insn = print_insn_arm;
+#elif defined(__MIPSEB__)
+    print_insn = print_insn_big_mips;
+#elif defined(__MIPSEL__)
+    print_insn = print_insn_little_mips;
+#elif defined(__m68k__)
+    print_insn = print_insn_m68k;
 #else
     fprintf(out, "0x%lx: Asm output not supported on this arch\n",
            (long) code);
@@ -230,6 +291,7 @@ const char *lookup_symbol(target_ulong orig_addr)
     /* Hack, because we know this is x86. */
     Elf32_Sym *sym;
     struct syminfo *s;
+    target_ulong addr;
     
     for (s = syminfos; s; s = s->next) {
        sym = s->disas_symtab;
@@ -241,8 +303,13 @@ const char *lookup_symbol(target_ulong orig_addr)
            if (ELF_ST_TYPE(sym[i].st_info) != STT_FUNC)
                continue;
 
-           if (orig_addr >= sym[i].st_value
-               && orig_addr < sym[i].st_value + sym[i].st_size)
+           addr = sym[i].st_value;
+#ifdef TARGET_ARM
+            /* The bottom address bit marks a Thumb symbol.  */
+            addr &= ~(target_ulong)1;
+#endif
+           if (orig_addr >= addr
+               && orig_addr < addr + sym[i].st_size)
                return s->disas_strtab + sym[i].st_name;
        }
     }
@@ -255,6 +322,7 @@ void term_vprintf(const char *fmt, va_list ap);
 void term_printf(const char *fmt, ...);
 
 static int monitor_disas_is_physical;
+static CPUState *monitor_disas_env;
 
 static int
 monitor_read_memory (memaddr, myaddr, length, info)
@@ -266,7 +334,7 @@ monitor_read_memory (memaddr, myaddr, length, info)
     if (monitor_disas_is_physical) {
         cpu_physical_memory_rw(memaddr, myaddr, length, 0);
     } else {
-        cpu_memory_rw_debug(cpu_single_env, memaddr,myaddr, length, 0);
+        cpu_memory_rw_debug(monitor_disas_env, memaddr,myaddr, length, 0);
     }
     return 0;
 }
@@ -280,7 +348,8 @@ static int monitor_fprintf(FILE *stream, const char *fmt, ...)
     return 0;
 }
 
-void monitor_disas(target_ulong pc, int nb_insn, int is_physical, int flags)
+void monitor_disas(CPUState *env,
+                   target_ulong pc, int nb_insn, int is_physical, int flags)
 {
     int count, i;
     struct disassemble_info disasm_info;
@@ -288,6 +357,7 @@ void monitor_disas(target_ulong pc, int nb_insn, int is_physical, int flags)
 
     INIT_DISASSEMBLE_INFO(disasm_info, NULL, monitor_fprintf);
 
+    monitor_disas_env = env;
     monitor_disas_is_physical = is_physical;
     disasm_info.read_memory_func = monitor_read_memory;
 
@@ -311,7 +381,20 @@ void monitor_disas(target_ulong pc, int nb_insn, int is_physical, int flags)
 #elif defined(TARGET_SPARC)
     print_insn = print_insn_sparc;
 #elif defined(TARGET_PPC)
+#ifdef TARGET_PPC64
+    disasm_info.mach = bfd_mach_ppc64;
+#else
+    disasm_info.mach = bfd_mach_ppc;
+#endif
     print_insn = print_insn_ppc;
+#elif defined(TARGET_MIPS)
+#ifdef TARGET_WORDS_BIGENDIAN
+    print_insn = print_insn_big_mips;
+#else
+    print_insn = print_insn_little_mips;
+#endif
+#elif defined(TARGET_M68K)
+    print_insn = print_insn_m68k;
 #else
     term_printf("0x" TARGET_FMT_lx
                ": Asm output not supported on this arch\n", pc);