提交: 82d97e5597357bd5b45517bec1a5f10041e7470a - binutils_os216 (git)

GNU Binutils with patches for OS216

Commit MetaInfo

• 修訂: 82d97e5597357bd5b45517bec1a5f10041e7470a (tree)
• 時間: 2003-06-07 09:16:57
• 作者: Jim Blandy <jimb@code...>
• Commiter: Jim Blandy

Log Message

* ppc-linux-tdep.c (ppc64_call_dummy_address): New function.
(ppc_linux_init_abi): Set it as the gdbarch's call_dummy_address
method.

Change Summary

• modified: gdb/ChangeLog
• modified: gdb/ppc-linux-tdep.c

差異

--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
 2003-06-06  Jim Blandy  <[e-mail]>
 
+	* ppc-linux-tdep.c (ppc64_call_dummy_address): New function.
+	(ppc_linux_init_abi): Set it as the gdbarch's call_dummy_address
+	method.
+
 	* ppc-linux-tdep.c (ppc64_desc_entry_point): New function.
 	(ppc64_standard_linkage_target): Use it.
 

--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -893,6 +893,18 @@ ppc64_skip_trampoline_code (CORE_ADDR pc)
 }
 
 
+/* On 64-bit PowerPC Linux, the ELF header's e_entry field is the
+   address of a function descriptor for the entry point function, not
+   the actual entry point itself.  So to find the actual address at
+   which execution should begin, we need to fetch the function's entry
+   point from that descriptor.  */
+static CORE_ADDR
+ppc64_call_dummy_address (void)
+{
+  return ppc64_desc_entry_point (entry_point_address ());
+}
+
+
 enum {
   ELF_NGREG = 48,
   ELF_NFPREG = 33,
@@ -1014,6 +1026,8 @@ ppc_linux_init_abi (struct gdbarch_info info,
   
   if (tdep->wordsize == 8)
     {
+      set_gdbarch_call_dummy_address (gdbarch, ppc64_call_dummy_address);
+
       set_gdbarch_in_solib_call_trampoline
         (gdbarch, ppc64_in_solib_call_trampoline);
       set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code);