Add ia64 support. Various adjustments were made to existing targets to

cope with a few interface changes required by the ia64. In particular,
function pointers on ia64 need special treatment in rtld.

2 files changed, 17 insertions, 8 deletions

diff --git a/libexec/rtld-elf/i386/reloc.c b/libexec/rtld-elf/i386/reloc.c
index aff70b0..3954452 100644
--- a/libexec/rtld-elf/i386/reloc.c
+++ b/libexec/rtld-elf/i386/reloc.c
@@ -237,7 +237,7 @@ reloc_jmpslots(Obj_Entry *obj)
 	return 0;
     rellim = (const Elf_Rel *)((char *)obj->pltrel + obj->pltrelsize);
     for (rel = obj->pltrel;  rel < rellim;  rel++) {
-	Elf_Addr *where;
+	Elf_Addr *where, target;
 	const Elf_Sym *def;
 	const Obj_Entry *defobj;
 
@@ -246,7 +246,8 @@ reloc_jmpslots(Obj_Entry *obj)
 	def = find_symdef(ELF_R_SYM(rel->r_info), obj, &defobj, true, NULL);
 	if (def == NULL)
 	    return -1;
-	reloc_jmpslot(where, (Elf_Addr)(defobj->relocbase + def->st_value));
+	target = (Elf_Addr)(defobj->relocbase + def->st_value);
+	reloc_jmpslot(where, target, defobj);
     }
     obj->jmpslots_done = true;
     return 0;
diff --git a/libexec/rtld-elf/i386/rtld_machdep.h b/libexec/rtld-elf/i386/rtld_machdep.h
index 37a81d3..a26394f 100644
--- a/libexec/rtld-elf/i386/rtld_machdep.h
+++ b/libexec/rtld-elf/i386/rtld_machdep.h
@@ -29,17 +29,25 @@
 #ifndef RTLD_MACHDEP_H
 #define RTLD_MACHDEP_H	1
 
+struct Struct_Obj_Entry;
+
 /* Return the address of the .dynamic section in the dynamic linker. */
 #define rtld_dynamic(obj) \
     ((const Elf_Dyn *)((obj)->relocbase + (Elf_Addr)&_DYNAMIC))
 
 /* Fixup the jump slot at "where" to transfer control to "target". */
-#define reloc_jmpslot(where, target)			\
-    do {						\
-	dbg("reloc_jmpslot: *%p = %p", (void *)(where),	\
-	  (void *)(target));				\
-	(*(Elf_Addr *)(where) = (Elf_Addr)(target));	\
-    } while (0)
+static inline Elf_Addr
+reloc_jmpslot(Elf_Addr *where, Elf_Addr target,
+	      const struct Struct_Obj_Entry *obj)
+{
+    dbg("reloc_jmpslot: *%p = %p", (void *)(where),
+	(void *)(target));
+    (*(Elf_Addr *)(where) = (Elf_Addr)(target));
+    return target;
+}
+
+#define make_function_pointer(def, defobj) \
+	((defobj)->relocbase + (def)->st_value)
 
 static inline void
 atomic_decr_int(volatile int *p)