[src/trunk]: src/libexec/ld.elf_so Introduce a cast to fix the build for Elf3...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/34c6394ea225
branches:  trunk
changeset: 801969:34c6394ea225
user:      christos <christos%NetBSD.org@localhost>
date:      Tue Aug 26 07:54:27 2014 +0000

description:
Introduce a cast to fix the build for Elf32 on _LP64.

diffstat:

 libexec/ld.elf_so/headers.c |   8 ++++----
 libexec/ld.elf_so/rtld.h    |  15 ++++++++++++---
 2 files changed, 16 insertions(+), 7 deletions(-)

diffs (70 lines):

diff -r 3c5ad5835d95 -r 34c6394ea225 libexec/ld.elf_so/headers.c
--- a/libexec/ld.elf_so/headers.c       Tue Aug 26 00:48:29 2014 +0000
+++ b/libexec/ld.elf_so/headers.c       Tue Aug 26 07:54:27 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: headers.c,v 1.55 2014/08/25 20:40:52 joerg Exp $        */
+/*     $NetBSD: headers.c,v 1.56 2014/08/26 07:54:27 christos Exp $     */
 
 /*
  * Copyright 1996 John D. Polstra.
@@ -40,7 +40,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: headers.c,v 1.55 2014/08/25 20:40:52 joerg Exp $");
+__RCSID("$NetBSD: headers.c,v 1.56 2014/08/26 07:54:27 christos Exp $");
 #endif /* not lint */
 
 #include <err.h>
@@ -345,9 +345,9 @@
        }
 
        if (init != 0)
-               obj->init = (Elf_Addr)obj->relocbase + init;
+               obj->init = (Elf_Addr) RTLD_ELF32_CAST obj->relocbase + init;
        if (fini != 0)
-               obj->fini = (Elf_Addr)obj->relocbase + fini;
+               obj->fini = (Elf_Addr) RTLD_ELF32_CAST obj->relocbase + fini;
 
        if (dyn_rpath != NULL) {
                _rtld_add_paths(execname, &obj->rpaths, obj->strtab +
diff -r 3c5ad5835d95 -r 34c6394ea225 libexec/ld.elf_so/rtld.h
--- a/libexec/ld.elf_so/rtld.h  Tue Aug 26 00:48:29 2014 +0000
+++ b/libexec/ld.elf_so/rtld.h  Tue Aug 26 07:54:27 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rtld.h,v 1.120 2014/08/25 20:40:52 joerg Exp $  */
+/*     $NetBSD: rtld.h,v 1.121 2014/08/26 07:54:27 christos Exp $       */
 
 /*
  * Copyright 1996 John D. Polstra.
@@ -475,6 +475,15 @@
 void _rtld_obj_free(Obj_Entry *);
 Obj_Entry *_rtld_obj_new(void);
 
+/*
+ * The following uintptr_t cast is for Elf32 emulation on _LP64 systems
+ */
+#if defined(_LP64) && ELFSIZE == 32 
+#define RTLD_ELF32_CAST (uintptr_t)
+#else
+#define RTLD_ELF32_CAST 
+#endif
+
 /* function descriptors */
 #ifdef __HAVE_FUNCTION_DESCRIPTORS
 Elf_Addr _rtld_function_descriptor_alloc(const Obj_Entry *,
@@ -487,12 +496,12 @@
 static inline void
 _rtld_call_function_void(const Obj_Entry *obj, Elf_Addr addr)
 {
-       ((void (*)(void))addr)();
+       ((void (*)(void)) RTLD_ELF32_CAST addr)();
 }
 static inline Elf_Addr
 _rtld_call_function_addr(const Obj_Entry *obj, Elf_Addr addr)
 {
-       return ((Elf_Addr(*)(void))addr)();
+       return ((Elf_Addr(*)(void)) RTLD_ELF32_CAST addr)();
 }
 #endif /* __HAVE_FUNCTION_DESCRIPTORS */