bfd/

	* elf32-spu.c (spu_elf_size_stubs): Revert 2008-01-28 doubling
	of _ovly_buf_table size.
	(spu_elf_build_stubs): Use low bit of .size as "present" bit.
	Adjust initialisations relating to _ovly_buf_table.
ld/
	* emultempl/spu_ovl.S: Use low bit of _ovly_table.size as
	a "present" bit rather than low bit of .buf.  Correct indexing
	into _ovly_buf_table.  Use relative loads and stores to access
	overlay manager local vars.
	* emultempl/spu_ovl.o: Regenerate.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 6c9e799..6c11aec 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+2008-02-07  Alan Modra  <amodra@bigpond.net.au>
+
+       * elf32-spu.c (spu_elf_size_stubs): Revert 2008-01-28 doubling
+       of _ovly_buf_table size.
+       (spu_elf_build_stubs): Use low bit of .size as "present" bit.
+       Adjust initialisations relating to _ovly_buf_table.
+
 2008-02-04  Bob Wilson  <bob.wilson@acm.org>
        
        * elf32-xtensa (elf_xtensa_relocate_section): After finding an invalid

diff --git a/bfd/elf32-spu.c b/bfd/elf32-spu.c
index 04de774..826512f 100644 (file)
--- a/bfd/elf32-spu.c
+++ b/bfd/elf32-spu.c
@@ -1202,7 +1202,7 @@ spu_elf_size_stubs (bfd *output_bfd,
       || !bfd_set_section_alignment (ibfd, htab->ovtab, 4))
     return 0;
 
-  htab->ovtab->size = htab->num_overlays * 16 + 16 + htab->num_buf * 2 * 4;
+  htab->ovtab->size = htab->num_overlays * 16 + 16 + htab->num_buf * 4;
   (*place_spu_section) (htab->ovtab, NULL, ".data");
 
   htab->toe = bfd_make_section_anyway_with_flags (ibfd, ".toe", SEC_ALLOC);
@@ -1373,8 +1373,8 @@ spu_elf_build_stubs (struct bfd_link_info *info, int emit_syms)
 
   /* Write out _ovly_table.  */
   p = htab->ovtab->contents;
-  /* set low bit of .buf to mark non-overlay area as present.  */
-  p[15] = 1;
+  /* set low bit of .size to mark non-overlay area as present.  */
+  p[7] = 1;
   for (s = obfd->sections; s != NULL; s = s->next)
     {
       unsigned int ovl_index = spu_elf_section_data (s)->u.o.ovl_index;
@@ -1387,7 +1387,7 @@ spu_elf_build_stubs (struct bfd_link_info *info, int emit_syms)
          bfd_put_32 (htab->ovtab->owner, s->vma, p + off);
          bfd_put_32 (htab->ovtab->owner, (s->size + 15) & -16, p + off + 4);
          /* file_off written later in spu_elf_modify_program_headers.  */
-         bfd_put_32 (htab->ovtab->owner, ovl_buf * 2, p + off + 12);
+         bfd_put_32 (htab->ovtab->owner, ovl_buf, p + off + 12);
        }
     }
 
@@ -1407,12 +1407,12 @@ spu_elf_build_stubs (struct bfd_link_info *info, int emit_syms)
   if (h == NULL)
     return FALSE;
   h->root.u.def.value = htab->num_overlays * 16 + 16;
-  h->size = htab->num_buf * 2 * 4;
+  h->size = htab->num_buf * 4;
 
   h = define_ovtab_symbol (htab, "_ovly_buf_table_end");
   if (h == NULL)
     return FALSE;
-  h->root.u.def.value = htab->num_overlays * 16 + 16 + htab->num_buf * 2 * 4;
+  h->root.u.def.value = htab->num_overlays * 16 + 16 + htab->num_buf * 4;
   h->size = 0;
 
   h = define_ovtab_symbol (htab, "_EAR_");

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 06bde56..3407aa6 100644 (file)
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2008-02-07  Alan Modra  <amodra@bigpond.net.au>
+
+       * emultempl/spu_ovl.S: Use low bit of _ovly_table.size as
+       a "present" bit rather than low bit of .buf.  Correct indexing
+       into _ovly_buf_table.  Use relative loads and stores to access
+       overlay manager local vars.
+       * emultempl/spu_ovl.o: Regenerate.
+
 2008-02-04  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR 5715

diff --git a/ld/emultempl/spu_ovl.S b/ld/emultempl/spu_ovl.S
index 3f9c83b..92304b2 100644 (file)
--- a/ld/emultempl/spu_ovl.S
+++ b/ld/emultempl/spu_ovl.S
@@ -1,6 +1,6 @@
 /* Overlay manager for SPU.
 
-   Copyright 2006, 2007 Free Software Foundation, Inc.
+   Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
 
    This file is part of the GNU Binutils.
 
@@ -46,12 +46,13 @@
 #define cgbits         reserved2
 #define off3           reserved2
 #define off4           reserved2
+#define addr4          reserved2
 #define off5           reserved2
 #define tagstat                reserved2
 
 #define reserved3      $77
-#define buf1           reserved3
-#define buf2           reserved3
+#define size1          reserved3
+#define size2          reserved3
 #define rv3            reserved3
 #define ealo           reserved3
 #define cmd            reserved3
@@ -145,18 +146,18 @@ __ovly_return:
 #nop; lnop
 #nop; lnop
 #nop
-       rotqbyi buf1, vma, 12                                   # 1,4   14
+       rotqbyi size1, vma, 4                                   # 1,4   14
 #nop
        stqd    save3, -48($sp)                                 # 1,6   15
 #nop
        stqd    save2, -32($sp)                                 # 1,6   16
 #nop
        stqd    save1, -16($sp)                                 # 1,6   17
-       andi    present1, buf1, 1                               # 0,2   18
-       stqd    ovl, (__ovly_current - __ovly_return)($lr)      # 1,6   18
+       andi    present1, size1, 1                              # 0,2   18
+       stqr    ovl, __ovly_current                             # 1,6   18
 #nop; lnop
 #nop
-       brz     present1, __ovly_load_event                     # 1,4   20
+       brz     present1, do_load                               # 1,4   20
 ovly_ret9:
 #nop
        bi      target                                          # 1,4   21
@@ -197,11 +198,11 @@ __ovly_load:
 #lnop
 #nop; lnop
 #nop
-       lqd     cur, (__ovly_current - __ovly_return)(rv1)      # 1,6   2
+       lqr     cur, __ovly_current                             # 1,6   2
        shli    off2, ovl, 4                                    # 0,4   3
-       stqd    ovl, (__ovly_current - __ovly_return)(rv1)      # 1,6   3
+       stqr    ovl, __ovly_current                             # 1,6   3
        ceq     rv2, $lr, rv1                                   # 0,2   4
-       lqd     rv3, (__rv_pattern - __ovly_return)(rv1)        # 1,6   4
+       lqr     rv3, __rv_pattern                               # 1,6   4
 #nop; lnop
 #nop; lnop
 #nop
@@ -214,11 +215,11 @@ __ovly_load:
        ila     rv1, __ovly_return                              # 0,2   1
        stqd    save2, -32($sp)                                 # 1,6   1
        shli    off2, ovl, 4                                    # 0,4   2
-       lqa     cur, __ovly_current                             # 1,6   2
+       lqr     cur, __ovly_current                             # 1,6   2
        nop
-       stqa    ovl, __ovly_current                             # 1,6   3
+       stqr    ovl, __ovly_current                             # 1,6   3
        ceq     rv2, $lr, rv1                                   # 0,2   4
-       lqd     rv3, (__rv_pattern - __ovly_return)(rv1)        # 1,6   4
+       lqr     rv3, __rv_pattern                               # 1,6   4
 #nop
        hbr     ovly_load9, target                              # 1,15  5
 #nop
@@ -237,18 +238,18 @@ __ovly_load:
 #nop
        rotqmbyi rv6, $lr, -8                                   # 1,4   12
 #nop
-       rotqbyi buf2, vma, 12                                   # 1,4   13
+       rotqbyi size2, vma, 4                                   # 1,4   13
 #nop
        lqd     save3, -48($sp)                                 # 1,6   14
 #nop; lnop
        or      rv7, rv4, rv6                                   # 0,2   16
        lqd     save2, -32($sp)                                 # 1,6   16
-       andi    present2, buf2, 1                               # 0,2   17
+       andi    present2, size2, 1                              # 0,2   17
        lnop                                                    # 1,0   17
        selb    $lr, rv7, $lr, rv5                              # 0,2   18
        lqd     save1, -16($sp)                                 # 1,6   18
 #nop
-       brz     present2, __ovly_load_event                     # 1,4   19
+       brz     present2, do_load                               # 1,4   19
 ovly_load9:
 #nop
        bi      target                                          # 1,4   20
@@ -266,6 +267,7 @@ ovly_load9:
        .global __ovly_load_event
        .type   __ovly_load_event, @function
 __ovly_load_event:
+do_load:
 #nop
        rotqbyi sz, vma, 8                                      # 1,4   0
 #nop
@@ -273,7 +275,7 @@ __ovly_load_event:
 #nop
        lqa     ea64, _EAR_                                     # 1,6   2
 #nop
-       lqd     cgshuf, (__cg_pattern - __ovly_return)($lr)     # 1,6   3
+       lqr     cgshuf, __cg_pattern                            # 1,6   3
 
 /* We could predict the branch at the end of this loop by adding a few
    instructions, and there are plenty of free cycles to do so without
@@ -316,13 +318,13 @@ __ovly_xfer_loop:
        brnz    osize, __ovly_xfer_loop                         # 1,4   24
 
 /* Now update our data structions while waiting for DMA to complete.
-   Low bit of .buf needs to be cleared on the _ovly_table entry
+   Low bit of .size needs to be cleared on the _ovly_table entry
    corresponding to the evicted overlay, and set on the entry for the
    newly loaded overlay.  Note that no overlay may in fact be evicted
-   as _ovly_buf_table[] starts with all zeros.  Don't zap .buf entry
+   as _ovly_buf_table[] starts with all zeros.  Don't zap .size entry
    for zero index!  Also of course update the _ovly_buf_table entry.  */
 #nop
-       lqd     newovl, (__ovly_current - __ovly_return)($lr)   # 1,6   25
+       lqr     newovl, __ovly_current                          # 1,6   25
 #nop; lnop
 #nop; lnop
 #nop; lnop
@@ -333,7 +335,7 @@ __ovly_xfer_loop:
        ila     tab3, _ovly_table - 16                          # 0,2   32
 #lnop
 #nop
-       fsmbi   pbyte, 1                                        # 1,4   33
+       fsmbi   pbyte, 0x100                                    # 1,4   33
 #nop; lnop
 #nop
        lqx     vma, tab3, off3                                 # 1,6   35
@@ -351,7 +353,7 @@ __ovly_xfer_loop:
 #nop; lnop
        shli    off4, buf3, 2                                   # 1,4   45
 #lnop
-       ila     tab4, _ovly_buf_table                           # 0,2   46
+       ila     tab4, _ovly_buf_table - 4                       # 0,2   46
 #lnop
 #nop; lnop
 #nop; lnop
@@ -359,13 +361,14 @@ __ovly_xfer_loop:
        lqx     map, tab4, off4                                 # 1,6   49
 #nop
        cwx     genwi, tab4, off4                               # 1,4   50
-#nop; lnop
+       a       addr4, tab4, off4                               # 0,2   51
+#lnop
 #nop; lnop
 #nop; lnop
 #nop; lnop
 #nop
-       rotqby  oldovl, map, off4                               # 1,4   55
-       nop
+       rotqby  oldovl, map, addr4                              # 1,4   55
+#nop
        shufb   newmap, newovl, map, genwi                      # 0,4   56
 #if MFC_TAG_ID < 16
        ila     newmask, 1 << MFC_TAG_ID                        # 0,2   57
@@ -375,7 +378,7 @@ __ovly_xfer_loop:
 #lnop
 #nop; lnop
 #nop; lnop
-       stqx    newmap, tab4, off4                              # 1,6   60
+       stqd    newmap, 0(addr4)                                # 1,6   60
 
 /* Save app's tagmask, wait for DMA complete, restore mask.  */
        ila     tagstat, MFC_TAG_UPDATE_ALL                     # 0,2   61

diff --git a/ld/emultempl/spu_ovl.o b/ld/emultempl/spu_ovl.o
index d5b37e1..4fe2b25 100644 (file)
Binary files a/ld/emultempl/spu_ovl.o and b/ld/emultempl/spu_ovl.o differ