Add code to decode the e_flags field of an ARM ELF binary.

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 5a17b0f..073a320 100644 (file)
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2000-04-06  Nick Clifton  <nickc@cygnus.com>
+
+       * readelf.c (decode_ARM_machine_flags): New function.
+       (get_machine_flags): Call decode_ARM_machine_flags for ARM
+       targets.
+
 2000-04-05  Alan Modra  <alan@linuxcare.com.au>
 
        * binutils.texi: Remove optional `=' from long options that have

diff --git a/binutils/readelf.c b/binutils/readelf.c
index 050ef9c..0c48c42 100644 (file)
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -153,6 +153,7 @@ static const char *       get_dynamic_type            PARAMS ((unsigned long));
 static int                dump_relocations            PARAMS ((FILE *, unsigned long, unsigned long, Elf_Internal_Sym *, unsigned long, char *, int));
 static char *             get_file_type               PARAMS ((unsigned));
 static char *             get_machine_name            PARAMS ((unsigned));
+static void              decode_ARM_machine_flags    PARAMS ((unsigned, char []));
 static char *             get_machine_flags           PARAMS ((unsigned, unsigned));
 static const char *       get_mips_segment_type       PARAMS ((unsigned long));
 static const char *       get_parisc_segment_type     PARAMS ((unsigned long));
@@ -1246,6 +1247,116 @@ get_machine_name (e_machine)
     }
 }
 
+static void
+decode_ARM_machine_flags (e_flags, buf)
+     unsigned e_flags;
+     char buf[];
+{
+  unsigned eabi;
+  int unknown = 0;
+
+  eabi = EF_ARM_EABI_VERSION (e_flags);
+  e_flags &= ~ EF_ARM_EABIMASK;
+
+  /* Handle "generic" ARM flags.  */
+  if (e_flags & EF_ARM_RELEXEC)
+    {
+      strcat (buf, ", relocatable executable");
+      e_flags &= ~ EF_ARM_RELEXEC;
+    }
+             
+  if (e_flags & EF_ARM_HASENTRY)
+    {
+      strcat (buf, ", has entry point");
+      e_flags &= ~ EF_ARM_HASENTRY;
+    }
+  
+  /* Now handle EABI specific flags.  */
+  switch (eabi)
+    {
+    default:
+      strcat (buf, ", <unknown EABI>");
+      if (e_flags)
+       unknown = 1;
+      break;
+
+    case EF_ARM_EABI_VER1:
+      while (e_flags)
+       {
+         unsigned flag;
+         
+         /* Process flags one bit at a time.  */
+         flag = e_flags & - e_flags;
+         e_flags &= ~ flag;
+         
+         switch (flag)
+           {
+           case EF_ARM_SYMSARESORTED: /* Conflicts with EF_INTERWORK.  */
+             strcat (buf, ", sorted symbol tables");
+             break;
+             
+           default:
+             unknown = 1;
+             break;
+           }
+       }
+      break;
+      
+    case EF_ARM_EABI_UNKNOWN:
+      while (e_flags)
+       {
+         unsigned flag;
+         
+         /* Process flags one bit at a time.  */
+         flag = e_flags & - e_flags;
+         e_flags &= ~ flag;
+         
+         switch (flag)
+           {
+           case EF_INTERWORK:
+             strcat (buf, ", interworking enabled");
+             break;
+         
+           case EF_APCS_26:
+             strcat (buf, ", uses APCS/26");
+             break;
+         
+           case EF_APCS_FLOAT:
+             strcat (buf, ", uses APCS/float");
+             break;
+         
+           case EF_PIC:
+             strcat (buf, ", position independent");
+             break;
+         
+           case EF_ALIGN8:
+             strcat (buf, ", 8 bit structure alignment");
+             break;
+         
+           case EF_NEW_ABI:
+             strcat (buf, ", uses new ABI");
+             break;
+         
+           case EF_OLD_ABI:
+             strcat (buf, ", uses old ABI");
+             break;
+         
+           case EF_SOFT_FLOAT:
+             strcat (buf, ", software FP");
+             break;
+         
+           default:
+             unknown = 1;
+             break;
+           }
+       }
+    }
+  
+
+  if (unknown)
+    strcat (buf,", <unknown>");
+}
+
 static char *
 get_machine_flags (e_flags, e_machine)
      unsigned e_flags;
@@ -1262,6 +1373,10 @@ get_machine_flags (e_flags, e_machine)
        default:
          break;
 
+       case EM_ARM:
+         decode_ARM_machine_flags (e_flags, buf);
+         break;
+         
         case EM_68K:
           if (e_flags & EF_CPU32)
             strcat (buf, ", cpu32");
@@ -3174,7 +3289,7 @@ process_dynamic_segment (file)
     {
       if (do_dynamic)
        {
-         const char *dtype;
+         const char * dtype;
 
          putchar (' ');
          print_vma (entry->d_tag, FULL_HEX);
@@ -3749,7 +3864,7 @@ process_version_sections (file)
            for (cnt = 0; cnt < total; cnt += 4)
              {
                int j, nn;
-               char *name;
+               char * name;
 
                printf ("  %03x:", cnt);
 
@@ -6992,8 +7107,7 @@ process_corefile_note_segment (file, offset, length)
   external = pnotes;
 
   printf (_("\nNotes at offset 0x%08lx with length 0x%08lx:\n"),
-         (unsigned long) offset,
-         (unsigned long) length);
+         (unsigned long) offset, (unsigned long) length);
   printf (_("  Owner\t\tData size\tDescription\n"));
 
   while (external < (Elf_External_Note *)((char *) pnotes + length))