Update.

2003-12-02  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/elf/initfini.c: Add unwind info.

	* sysdeps/ia64/dl-machine.h (elf_machine_matches_host): Mark with
	attribute "unused".
	(elf_machine_dynamic): Mark with attributes "unused" and "const".
	(elf_machine_runtime_setup): Likewise.

	* sysdeps/generic/dl-fptr.c (make_fptr_table): Mark with
	attribute "always_inline".
	* sysdeps/ia64/dl-machine.h (__ia64_init_bootstrap_fdesc_table):
	Likewise.

	* configure.in: Check whether compiler has libunwind support.
	* config.make.in (have-cc-with-libunwind): New variable.
	* config.h.in (HAVE_CC_WITH_LIBUNWIND): New macro.
	* Makeconfig (gnulib): If have-cc-withh-libunwind is "yes", also
	mention -lunwind.

003-11-12  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Define DO_CALL_VIA_BREAK.
	Redefine DO_CALL to use vdso if supported, otherwise DO_CALL_VIA_BREAK.
	Likewise for DO_INLINE_SYSCALL.  Make INTERNAL_SYSCALL use
	DO_INLINE_SYSCALL.

	* sysdeps/unix/sysv/linux/ia64/vfork.S: Use DO_CALL_VIA_BREAK()
	instead of DO_CALL().

	* sysdeps/unix/sysv/linux/ia64/clone2.S: Use break directly instead
	of DO_CALL().

	* sysdeps/unix/sysv/linux/ia64/brk.S (__curbrk): Restructure it
	to take advantage of DO_CALL() macro.
	* sysdeps/unix/sysv/linux/ia64/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/getcontext.S: Likewise.

	* elf/rtld.c (dl_main): Restrict dl_sysinfo_dso check to first
	program header.  On ia64, the check failed previously because
	there are two program headers.

	* sysdeps/generic/s_nexttowardf.c: Likewise.
	* math/bug-nexttoward.c: New file.

2 files changed, 28 insertions, 10 deletions

diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h
index a8ba121868..5c0ff9f20c 100644
--- a/sysdeps/ia64/dl-machine.h
+++ b/sysdeps/ia64/dl-machine.h
@@ -33,7 +33,7 @@
    in l_info array.  */
 #define DT_IA_64(x) (DT_IA_64_##x - DT_LOPROC + DT_NUM)
 
-static inline void
+static inline void __attribute__ ((always_inline))
 __ia64_init_bootstrap_fdesc_table (struct link_map *map)
 {
   Elf64_Addr *boot_table;
@@ -49,7 +49,7 @@ __ia64_init_bootstrap_fdesc_table (struct link_map *map)
 	__ia64_init_bootstrap_fdesc_table (&bootstrap_map);
 
 /* Return nonzero iff ELF header is compatible with the running host.  */
-static inline int
+static inline int __attribute__ ((unused))
 elf_machine_matches_host (const Elf64_Ehdr *ehdr)
 {
   return ehdr->e_machine == EM_IA_64;
@@ -57,7 +57,7 @@ elf_machine_matches_host (const Elf64_Ehdr *ehdr)
 
 
 /* Return the link-time address of _DYNAMIC.  */
-static inline Elf64_Addr
+static inline Elf64_Addr __attribute__ ((unused, const))
 elf_machine_dynamic (void)
 {
   Elf64_Addr *p;
@@ -77,7 +77,7 @@ elf_machine_dynamic (void)
 
 
 /* Return the run-time load address of the shared object.  */
-static inline Elf64_Addr
+static inline Elf64_Addr __attribute__ ((unused))
 elf_machine_load_address (void)
 {
   Elf64_Addr ip;
@@ -98,7 +98,7 @@ elf_machine_load_address (void)
 /* Set up the loaded object described by L so its unrelocated PLT
    entries will jump to the on-demand fixup code in dl-runtime.c.  */
 
-static inline int __attribute__ ((always_inline))
+static inline int __attribute__ ((unused, always_inline))
 elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 {
   extern void _dl_runtime_resolve (void);
diff --git a/sysdeps/ia64/elf/initfini.c b/sysdeps/ia64/elf/initfini.c
index f86991922c..b901d3967b 100644
--- a/sysdeps/ia64/elf/initfini.c
+++ b/sysdeps/ia64/elf/initfini.c
@@ -61,16 +61,20 @@ __asm__ (".section .init_array, \"aw\"\n"
 #endif
 
 __asm__ (".section .init\n"
-"	.align 16\n"
 "	.global _init#\n"
 "	.proc _init#\n"
 "_init:\n"
+"	.prologue\n"
+"	.save ar.pfs, r34\n"
 "	alloc r34 = ar.pfs, 0, 3, 0, 0\n"
+"	.vframe r32\n"
 "	mov r32 = r12\n"
+"	.save rp, r33\n"
 "	mov r33 = b0\n"
+"	.body\n"
 "	adds r12 = -16, r12\n"
 #ifdef HAVE_INITFINI_ARRAY
- "	;;\n"		/* see gmon_initializer() below */
+"	;;\n"		/* see gmon_initializer() above */
 #else
 "	.weak	__gmon_start__#\n"
 "	addl r14 = @ltoff(@fptr(__gmon_start__#)), gp\n"
@@ -90,12 +94,17 @@ __asm__ (".section .init\n"
 "	;;\n"
 ".L5:\n"
 #endif
-"	.align 16\n"
 "	.endp _init#\n"
 "\n"
 "/*@_init_PROLOG_ENDS*/\n"
 "\n"
 "/*@_init_EPILOG_BEGINS*/\n"
+"	.proc _init#\n"
+"	.prologue\n"
+"	.save ar.pfs, r34\n"
+"	.vframe r32\n"
+"	.save rp, r33\n"
+"	.body\n"
 "	.section .init\n"
 "	.regstk 0,2,0,0\n"
 "	mov r12 = r32\n"
@@ -107,16 +116,19 @@ __asm__ (".section .init\n"
 "\n"
 "/*@_fini_PROLOG_BEGINS*/\n"
 "	.section .fini\n"
-"	.align 16\n"
 "	.global _fini#\n"
 "	.proc _fini#\n"
 "_fini:\n"
+"	.prologue\n"
+"	.save ar.pfs, r34\n"
 "	alloc r34 = ar.pfs, 0, 3, 0, 0\n"
+"	.vframe r32\n"
 "	mov r32 = r12\n"
+"	.save rp, r33\n"
 "	mov r33 = b0\n"
+"	.body\n"
 "	adds r12 = -16, r12\n"
 "	;;\n"
-"	.align 16\n"
 "	.endp _fini#\n"
 "\n"
 "/*@_fini_PROLOG_ENDS*/\n"
@@ -125,6 +137,12 @@ __asm__ (".section .init\n"
 "\n"
 "/*@_fini_EPILOG_BEGINS*/\n"
 "	.section .fini\n"
+"	.proc _fini#\n"
+"	.prologue\n"
+"	.save ar.pfs, r34\n"
+"	.vframe r32\n"
+"	.save rp, r33\n"
+"	.body\n"
 "	mov r12 = r32\n"
 "	mov ar.pfs = r34\n"
 "	mov b0 = r33\n"