commit e697c535392ce5b9644f4b5039420a333da1fe3f
Author: florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9>
Date:   Sun Sep 13 20:27:17 2015 +0000

    Fix various compiler warnings for the arm architecture.
    
    
    git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15650 a5019735-40e9-0310-863c-91ae7b9d1cf9

diff --git a/coregrind/m_debuginfo/readexidx.c b/coregrind/m_debuginfo/readexidx.c
index 2dd89cf..06a9a5f 100644
--- a/coregrind/m_debuginfo/readexidx.c
+++ b/coregrind/m_debuginfo/readexidx.c
@@ -205,7 +205,7 @@ typedef
 
 
 /* Helper function for fishing bits out of the EXIDX representation. */
-static void* Prel31ToAddr(const void* addr)
+static const void* Prel31ToAddr(const void* addr)
 {
    UInt offset32 = *(const UInt*)addr;
    // sign extend offset32[30:0] to 64 bits -- copy bit 30 to positions
@@ -215,7 +215,7 @@ static void* Prel31ToAddr(const void* addr)
       offset64 |= 0xFFFFFFFF80000000ULL;
    else
       offset64 &= 0x000000007FFFFFFFULL;
-   return ((UChar*)addr) + (UWord)offset64;
+   return ((const UChar*)addr) + (UWord)offset64;
 }
 
 
@@ -242,9 +242,9 @@ ExExtractResult ExtabEntryExtract ( MemoryRange* mr_exidx,
            buf[(*buf_used)++] = (_byte); } while (0)
 
 #  define GET_EX_U32(_lval, _addr, _mr) \
-      do { if (!MemoryRange__covers((_mr), (void*)(_addr), 4)) \
+      do { if (!MemoryRange__covers((_mr), (const void*)(_addr), 4)) \
               return ExInBufOverflow; \
-           (_lval) = *(UInt*)(_addr); } while (0)
+           (_lval) = *(const UInt*)(_addr); } while (0)
 
 #  define GET_EXIDX_U32(_lval, _addr) \
       GET_EX_U32(_lval, _addr, mr_exidx)
@@ -263,7 +263,7 @@ ExExtractResult ExtabEntryExtract ( MemoryRange* mr_exidx,
    UInt  pers;          // personality number
    UInt  extra;         // number of extra data words required
    UInt  extra_allowed; // number of extra data words allowed
-   UInt* extbl_data;    // the handler entry, if not inlined
+   const UInt* extbl_data;    // the handler entry, if not inlined
 
    if (data & ARM_EXIDX_COMPACT) {
       // The handler table entry has been inlined into the index table entry.
@@ -283,7 +283,7 @@ ExExtractResult ExtabEntryExtract ( MemoryRange* mr_exidx,
       // The index table entry is a pointer to the handler entry.  Note
       // that Prel31ToAddr will read the given address, but we already
       // range-checked above.
-      extbl_data = (UInt*)(Prel31ToAddr(&entry->data));
+      extbl_data = Prel31ToAddr(&entry->data);
       GET_EXTAB_U32(data, extbl_data);
       if (!(data & ARM_EXIDX_COMPACT)) {
          // This denotes a "generic model" handler.  That will involve
@@ -941,7 +941,7 @@ void ML_(read_exidx) ( /*MOD*/DebugInfo* di,
       VG_(printf)("BEGIN ML_(read_exidx) exidx_img=[%p, +%lu) "
                   "extab_img=[%p, +%lu) text_last_svma=%lx text_bias=%lx\n",
                   exidx_img, exidx_size, extab_img, extab_size,
-                  text_last_svma, text_bias);
+                  text_last_svma, (UWord)text_bias);
    Bool ok;
    MemoryRange mr_exidx, mr_extab;
    ok =       MemoryRange__init(&mr_exidx, exidx_img, exidx_size);
diff --git a/coregrind/m_sigframe/sigframe-arm-linux.c b/coregrind/m_sigframe/sigframe-arm-linux.c
index 2f7781a..185367c 100644
--- a/coregrind/m_sigframe/sigframe-arm-linux.c
+++ b/coregrind/m_sigframe/sigframe-arm-linux.c
@@ -248,7 +248,6 @@ void VG_(sigframe_destroy)( ThreadId tid, Bool isRT )
    struct vg_sig_private *priv;
    Addr sp;
    UInt frame_size;
-   struct vki_sigcontext *mc;
    Int sigNo;
    Bool has_siginfo = isRT;
 
@@ -259,14 +258,12 @@ void VG_(sigframe_destroy)( ThreadId tid, Bool isRT )
    if (has_siginfo) {
       struct rt_sigframe *frame = (struct rt_sigframe *)sp;
       frame_size = sizeof(*frame);
-      mc = &frame->sig.uc.uc_mcontext;
       priv = &frame->sig.vp;
       vg_assert(priv->magicPI == 0x31415927);
       tst->sig_mask = frame->sig.uc.uc_sigmask;
    } else {
       struct sigframe *frame = (struct sigframe *)sp;
       frame_size = sizeof(*frame);
-      mc = &frame->uc.uc_mcontext;
       priv = &frame->vp;
       vg_assert(priv->magicPI == 0x31415927);
       tst->sig_mask = frame->uc.uc_sigmask;