From: Jim Blandy <jimb@codesourcery.com>
Date: Tue, 24 Jun 2003 23:03:31 +0000 (+0000)
Subject: * ppc-linux-tdep.c (ppc64_call_dummy_address): New function.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e716d87a00778a8c31e124f6ea608e3c68fb2117;p=binutils-gdb.git

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

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index cf526c099a2..f544f57223f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
 2003-06-24  Jim Blandy  <jimb@redhat.com>
 
+	* 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.
 
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index 2f369cdccc6..5b82a910f33 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -894,6 +894,18 @@ 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,
@@ -1015,6 +1027,8 @@ 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);