Document new tristate __libc_missing_32bit_uids.

[kopensolaris-gnu/glibc.git] / sysdeps / arm / dl-machine.h

diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h
index 25e2f06..78341fc 100644 (file)
--- a/sysdeps/arm/dl-machine.h
+++ b/sysdeps/arm/dl-machine.h
@@ -32,6 +32,17 @@
   && VALID_ELF_OSABI (hdr[EI_OSABI]) \
   && VALID_ELF_ABIVERSION (hdr[EI_ABIVERSION])
 
+#define CLEAR_CACHE(BEG,END)                                           \
+{                                                                      \
+  register unsigned long _beg __asm ("a1") = (unsigned long)(BEG);     \
+  register unsigned long _end __asm ("a2") = (unsigned long)(END);     \
+  register unsigned long _flg __asm ("a3") = 0;                                \
+  __asm __volatile ("swi 0x9f0002              @ sys_cacheflush"       \
+                   : /* no outputs */                                  \
+                   : /* no inputs */                                   \
+                   : "a1");                                            \
+}
+
 /* Return nonzero iff E_MACHINE is compatible with the running host.  */
 static inline int __attribute__ ((unused))
 elf_machine_matches_host (Elf32_Half e_machine)
@@ -342,10 +353,9 @@ extern const char *_dl_platform;
 static inline void __attribute__ ((unused))
 dl_platform_init (void)
 {
-  if (_dl_platform == NULL)
-    /* We default to ARM
-    This is where processors could be distinguished arm2, arm6, sa110, etc */
-    _dl_platform = "ARM";
+  if (_dl_platform != NULL && *_dl_platform == '\0')
+    /* Avoid an empty string which would disturb us.  */
+    _dl_platform = NULL;
 }
 
 static inline void
@@ -443,6 +453,23 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
            *reloc_addr += value;
            break;
          }
+       case R_ARM_PC24:
+         {
+            signed int addend;
+
+            addend = *reloc_addr & 0x00ffffff;
+            if (addend & 0x00800000) addend |= 0xff000000;
+
+            value = value - (unsigned int)reloc_addr + (addend << 2);
+            if (value & 0xfc000003)
+              _dl_signal_error (0, map->l_name,
+                         "R_ARM_PC24 relocation out of range");
+              
+            value = value >> 2;
+            value = (*reloc_addr & 0xff000000) | (value & 0x00ffffff);
+            *reloc_addr = value;
+         }
+       break;
        default:
          _dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 0);
          break;