X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fspu-linux-nat.c;h=5adfe4baba75160ca874f022e35d433c69f24f40;hb=e7fbb131d42983eec31231f8bb69cdd8d5a33ee6;hp=372bbeef9d0a4f4ad6145e2ba9e8bc408a524560;hpb=28439f5ef78fd28c36bfc8c4b262f44fdd1ec40f;p=binutils-gdb.git

diff --git a/gdb/spu-linux-nat.c b/gdb/spu-linux-nat.c
index 372bbeef9d0..5adfe4baba7 100644
--- a/gdb/spu-linux-nat.c
+++ b/gdb/spu-linux-nat.c
@@ -1,5 +1,5 @@
 /* SPU native-dependent code for GDB, the GNU debugger.
-   Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
 
    Contributed by Ulrich Weigand <uweigand@de.ibm.com>.
 
@@ -204,6 +204,7 @@ store_ppc_memory (ULONGEST memaddr, const gdb_byte *myaddr, int len)
 static int 
 parse_spufs_run (int *fd, ULONGEST *addr)
 {
+  enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
   gdb_byte buf[4];
   ULONGEST pc = fetch_ppc_register (32);  /* nip */
 
@@ -211,7 +212,7 @@ parse_spufs_run (int *fd, ULONGEST *addr)
   if (fetch_ppc_memory (pc-4, buf, 4) != 0)
     return 0;
   /* It should be a "sc" instruction.  */
-  if (extract_unsigned_integer (buf, 4) != INSTR_SC)
+  if (extract_unsigned_integer (buf, 4, byte_order) != INSTR_SC)
     return 0;
   /* System call number should be NR_spu_run.  */
   if (fetch_ppc_register (0) != NR_spu_run)
@@ -308,6 +309,7 @@ static bfd *
 spu_bfd_open (ULONGEST addr)
 {
   struct bfd *nbfd;
+  asection *spu_name;
 
   ULONGEST *open_closure = xmalloc (sizeof (ULONGEST));
   *open_closure = addr;
@@ -325,6 +327,22 @@ spu_bfd_open (ULONGEST addr)
       return NULL;
     }
 
+  /* Retrieve SPU name note and update BFD name.  */
+  spu_name = bfd_get_section_by_name (nbfd, ".note.spu_name");
+  if (spu_name)
+    {
+      int sect_size = bfd_section_size (nbfd, spu_name);
+      if (sect_size > 20)
+	{
+	  char *buf = alloca (sect_size - 20 + 1);
+	  bfd_get_section_contents (nbfd, spu_name, buf, 20, sect_size - 20);
+	  buf[sect_size - 20] = '\0';
+
+	  xfree ((char *)nbfd->filename);
+	  nbfd->filename = xstrdup (buf);
+	}
+    }
+
   return nbfd;
 }
 
@@ -355,7 +373,8 @@ spu_symbol_file_add_from_memory (int inferior_fd)
   /* Open BFD representing SPE executable and read its symbols.  */
   nbfd = spu_bfd_open (addr);
   if (nbfd)
-    symbol_file_add_from_bfd (nbfd, 0, NULL, 1, 0);
+    symbol_file_add_from_bfd (nbfd, SYMFILE_VERBOSE | SYMFILE_MAINLINE,
+                              NULL, 0);
 }
 
 
@@ -405,7 +424,7 @@ spu_child_post_attach (int pid)
    minus_one_ptid in case of error; store status into *OURSTATUS.  */
 static ptid_t
 spu_child_wait (struct target_ops *ops,
-		ptid_t ptid, struct target_waitstatus *ourstatus)
+		ptid_t ptid, struct target_waitstatus *ourstatus, int options)
 {
   int save_errno;
   int status;
@@ -465,8 +484,10 @@ spu_fetch_inferior_registers (struct target_ops *ops,
   /* The ID register holds the spufs file handle.  */
   if (regno == -1 || regno == SPU_ID_REGNUM)
     {
+      struct gdbarch *gdbarch = get_regcache_arch (regcache);
+      enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
       char buf[4];
-      store_unsigned_integer (buf, 4, fd);
+      store_unsigned_integer (buf, 4, byte_order, fd);
       regcache_raw_supply (regcache, SPU_ID_REGNUM, buf);
     }
 
@@ -541,7 +562,10 @@ spu_xfer_partial (struct target_ops *ops,
     {
       int fd;
       ULONGEST addr;
-      char mem_annex[32];
+      char mem_annex[32], lslr_annex[32];
+      gdb_byte buf[32];
+      ULONGEST lslr;
+      LONGEST ret;
 
       /* We must be stopped on a spu_run system call.  */
       if (!parse_spufs_run (&fd, &addr))
@@ -549,7 +573,22 @@ spu_xfer_partial (struct target_ops *ops,
 
       /* Use the "mem" spufs file to access SPU local store.  */
       xsnprintf (mem_annex, sizeof mem_annex, "%d/mem", fd);
-      return spu_proc_xfer_spu (mem_annex, readbuf, writebuf, offset, len);
+      ret = spu_proc_xfer_spu (mem_annex, readbuf, writebuf, offset, len);
+      if (ret > 0)
+	return ret;
+
+      /* SPU local store access wraps the address around at the
+	 local store limit.  We emulate this here.  To avoid needing
+	 an extra access to retrieve the LSLR, we only do that after
+	 trying the original address first, and getting end-of-file.  */
+      xsnprintf (lslr_annex, sizeof lslr_annex, "%d/lslr", fd);
+      memset (buf, 0, sizeof buf);
+      if (spu_proc_xfer_spu (lslr_annex, buf, NULL, 0, sizeof buf) <= 0)
+	return ret;
+
+      lslr = strtoulst (buf, NULL, 16);
+      return spu_proc_xfer_spu (mem_annex, readbuf, writebuf,
+				offset & lslr, len);
     }
 
   return -1;
@@ -583,4 +622,3 @@ _initialize_spu_nat (void)
   /* Register SPU target.  */
   add_target (t);
 }
-