Update. cvs/libc-ud-970629

1997-06-29 23:43  Ulrich Drepper  <drepper@cygnus.com>

	* config.make.in: Define need-nopic-initfini.
	* configure.in: Write out nopic_initfini.
	* csu/Makefile: Generate no-PIC crt code if need-nopic-initfini
	is defined.

	* sysdeps/i386/fpu/fraiseexcpt.c: Correct FE_INEXACT case.

	* sysdeps/sparc/rem.S: Get trap definition properly.
	* sysdeps/sparc/sdiv.S: Likewise.
	* sysdeps/sparc/udiv.S: Likewise.
	* sysdeps/sparc/urem.S: Likewise.
	* sysdeps/sparc/setjmp.S: Include <sys/trap.h>.
	* sysdeps/sparc/sys/trap.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sys/trap.h: New file.

1997-06-25 10:26  Thorsten Kukuk  <kukuk@uni-paderborn.de>

	* sysdeps/generic/rpc/auth.h: Add xdr_opaque_auth declaration.

1997-06-29 10:34  Fila Kolodny  <fila@ibi.com>

	* sysdeps/mach/hurd/select.c (__select): Change MACH_MSG_SIZE_INTEGER_T
	to MACH_MSG_TYPE_INTEGER_T.

1997-06-29  01:04  Richard Henderson  <richard@gnu.ai.mit.edu>

	Initial sparc64-linux support:
	* configure.in: Recognize sparc64 as being different from sparc.
	* io/ftwtest-sh: Only invoke ld.so if it exists.
	* math/Makefile (LDLIBS-*): Change from libm to math/libm to get
	static tests to link.  Honour $(omit-long-double-fcts) == yes.
	* math/libm-test.c (test_single_exception): The argument to
	fetestexcept is `int' not `fexcept_t'.
	* shlib-versions: Recognize sparc64.
	* signal/signal.h: Add typedef for stack_t.

	* stdio-common/_itoa.c: Defaulting UMUL_TIME==UDIV_TIME is broken.
	Attempt to fix up most of this by cleaning up assumptions below,
	but give up and change the defaults.

	* setjmp/longjmp.c: Moved to ...
	* sysdeps/generic/longjmp.c: ... here.
	* setjmp/sigjmp.c: Moved to ...
	* sysdeps/generic/sigjmp.c: ... here.

	* sysdeps/sparc/bsd-_setjmp.S [PIC]: There wasn't even valid asm here.
	Ought to fix up gas to catch these silly things properly.
	* sysdeps/sparc/bsd-setjmp.S: Likewise.

	* sysdeps/unix/sysv/linux/sparc/errno.c: Remove.
	* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h: Remove.
	* sysdeps/unix/sysv/linux/sparc/kernel_stat.h: Tell xstat about
	the unused fields.

	* sysdeps/sparc/sparc64/add_n.s: Moved to ...
	* sysdeps/sparc64/add_n.S: ... here.  Fix up %g4 and stack usage.
	* sysdeps/sparc/sparc64/addmul_1.s: Likewise.
	* sysdeps/sparc/sparc64/gmp-mparam.h: Likewise.
	* sysdeps/sparc/sparc64/lshift.s: Likewise.
	* sysdeps/sparc/sparc64/mul_1.s: Likewise.
	* sysdeps/sparc/sparc64/rshift.s: Likewise.
	* sysdeps/sparc/sparc64/sub_n.s: Likewise.
	* sysdeps/sparc/sparc64/submul_1.s: Likewise.

	* sysdeps/sparc64/Implies: New file.
	* sysdeps/sparc64/Makefile: Likewise.
	* sysdeps/sparc64/bits/endian.h: Likewise.
	* sysdeps/sparc64/bsd-_setjmp.S: Likewise.
	* sysdeps/sparc64/bsd-setjmp.S: Likewise.
	* sysdeps/sparc64/dl-machine.h: Likewise.
	* sysdeps/sparc64/elf/Makefile: Likewise.
	* sysdeps/sparc64/elf/crtbegin.S: Likewise.
	* sysdeps/sparc64/elf/crtbeginS.S: Likewise.
	* sysdeps/sparc64/elf/crtend.S: Likewise.
	* sysdeps/sparc64/elf/crtendS.S: Likewise.
	* sysdeps/sparc64/elf/start.S: Likewise.
	* sysdeps/sparc64/fpu_control.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/__longjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/bits/setjmp.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/bits/types.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/brk.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/fork.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/getcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/init-first.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/kernel_stat.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/longjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/pipe.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/setjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/sigjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/sysdep.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/ucontext.h: Likewise.

1997-06-28 16:28  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* configure.in: Add -nostartfiles -nostdlib when check for
	--version-script.

1997-06-28 12:03  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/powerpc/bits/endian.h: New file.

1997-06-28 20:52  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/syscalls.list: Add getresgid and
	setresgid.

1 files changed, 304 insertions, 0 deletions

diff --git a/sysdeps/sparc64/dl-machine.h b/sysdeps/sparc64/dl-machine.h
new file mode 100644
index 0000000000..21c3d6b9bd
--- /dev/null
+++ b/sysdeps/sparc64/dl-machine.h
@@ -0,0 +1,304 @@
+/* Machine-dependent ELF dynamic relocation inline functions.  Sparc64 version.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#define ELF_MACHINE_NAME "sparc64"
+
+#include <assert.h>
+#include <string.h>
+#include <link.h>
+#include <sys/param.h>
+#include <sysdep.h>
+
+
+/* Return nonzero iff E_MACHINE is compatible with the running host.  */
+static inline int
+elf_machine_matches_host (Elf64_Half e_machine)
+{
+  return e_machine == EM_SPARC64;
+}
+
+
+/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
+   first element of the GOT.  This must be inlined in a function which
+   uses global data.  */
+static inline Elf64_Addr
+elf_machine_dynamic (void)
+{
+  register Elf64_Addr *got asm ("%l7");
+  return *got;
+}
+
+
+/* Return the run-time load address of the shared object.  */
+static inline Elf64_Addr
+elf_machine_load_address (void)
+{
+  Elf64_Addr here;
+
+  __asm("rd %pc,%0\n\t"
+	"ba 1f\n\t"
+	" add %0,12,%0\n\t"
+	".weak __load_address_undefined\n\t"
+	"call __load_address_undefined\n"
+	"1:"
+	: "=r"(here));
+
+  return here + (*(int *)here << 2);
+}
+
+#ifdef RESOLVE
+/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
+   MAP is the object containing the reloc.  */
+
+static inline void
+elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
+		  const Elf64_Sym *sym, const struct r_found_version *version)
+{
+  Elf64_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset);
+  Elf64_Addr loadbase;
+
+#ifndef RTLD_BOOTSTRAP
+  /* This is defined in rtld.c, but nowhere in the static libc.a; make the
+     reference weak so static programs can still link.  This declaration
+     cannot be done when compiling rtld.c (i.e.  #ifdef RTLD_BOOTSTRAP)
+     because rtld.c contains the common defn for _dl_rtld_map, which is
+     incompatible with a weak decl in the same file.  */
+  weak_extern (_dl_rtld_map);
+#endif
+
+  if (ELF64_R_TYPE (reloc->r_info) == R_SPARC_RELATIVE)
+    {
+#ifndef RTLD_BOOTSTRAP
+      if (map != &_dl_rtld_map) /* Already done in rtld itself. */
+#endif
+	*reloc_addr += map->l_addr + reloc->r_addend;
+    }
+  else
+    {
+      const Elf64_Sym *const refsym = sym;
+      Elf64_Addr value;
+      if (sym->st_shndx != SHN_UNDEF &&
+	  ELF64_ST_BIND (sym->st_info) == STB_LOCAL)
+	value = map->l_addr;
+      else
+	{
+	  value = RESOLVE (&sym, version, ELF64_R_TYPE (reloc->r_info));
+	  if (sym)
+	    value += sym->st_value;
+	}
+      value += reloc->r_addend;	/* Assume copy relocs have zero addend.  */
+
+      switch (ELF64_R_TYPE (reloc->r_info))
+	{
+	case R_SPARC_COPY:
+	  if (sym->st_size > refsym->st_size
+	      || (_dl_verbose && sym->st_size < refsym->st_size))
+	    {
+	      const char *strtab;
+
+	      strtab = ((void *) map->l_addr
+			+ map->l_info[DT_STRTAB]->d_un.d_ptr);
+	      _dl_sysdep_error ("Symbol `", strtab + refsym->st_name,
+				"' has different size in shared object, "
+				"consider re-linking\n", NULL);
+	    }
+	  memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
+						   refsym->st_size));
+	  break;
+	case R_SPARC_GLOB_DAT:
+	/* case R_SPARC_64: */
+	case R_SPARC_JMP_SLOT:
+	  *reloc_addr = value;
+	  break;
+	case R_SPARC_8:
+	  *(char *) reloc_addr = value;
+	  break;
+	case R_SPARC_16:
+	  *(short *) reloc_addr = value;
+	  break;
+	case R_SPARC_DISP8:
+	  *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
+	  break;
+	case R_SPARC_DISP16:
+	  *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
+	  break;
+	case R_SPARC_DISP32:
+	  *(unsigned int *)reloc_addr = (value - (Elf64_Addr) reloc_addr);
+	  break;
+	case R_SPARC_LO10:
+	  *(unsigned *)reloc_addr = (*(unsigned *)reloc_addr & ~0x3ff)
+				     | (value & 0x3ff);
+	  break;
+	case R_SPARC_WDISP30:
+	  *(unsigned *)reloc_addr = ((*(unsigned *)reloc_addr & 0xc0000000)
+			 | ((value - (Elf64_Addr) reloc_addr) >> 2));
+	  break;
+	case R_SPARC_HI22:
+	  *(unsigned *)reloc_addr = (*(unsigned *)reloc_addr & 0xffc00000)
+				     | (value >> 10);
+	  break;
+	case R_SPARC_NONE:		/* Alright, Wilbur.  */
+	  break;
+	default:
+	  assert (! "unexpected dynamic reloc type");
+	  break;
+	}
+    }
+}
+
+static inline void
+elf_machine_lazy_rel (struct link_map *map, const Elf64_Rela *reloc)
+{
+  switch (ELF64_R_TYPE (reloc->r_info))
+    {
+    case R_SPARC_NONE:
+      break;
+    case R_SPARC_JMP_SLOT:
+      break;
+    default:
+      assert (! "unexpected PLT reloc type");
+      break;
+    }
+}
+
+#endif	/* RESOLVE */
+
+/* Nonzero iff TYPE should not be allowed to resolve to one of
+   the main executable's symbols, as for a COPY reloc.  */
+#define elf_machine_lookup_noexec_p(type) ((type) == R_SPARC_COPY)
+
+/* Nonzero iff TYPE describes relocation of a PLT entry, so
+   PLT entries should not be allowed to define the value.  */
+#define elf_machine_lookup_noplt_p(type) ((type) == R_SPARC_JMP_SLOT)
+
+/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
+#define ELF_MACHINE_RELOC_NOPLT	R_SPARC_JMP_SLOT
+
+/* The SPARC never uses Elf64_Rel relocations.  */
+#define ELF_MACHINE_NO_REL 1
+
+
+/* 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
+elf_machine_runtime_setup (struct link_map *l, int lazy)
+{
+  Elf64_Addr *got;
+  extern void _dl_runtime_resolve (Elf64_Word);
+
+  if (l->l_info[DT_JMPREL] && lazy)
+    {
+      got = (Elf64_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr);
+      got[1] = (Elf64_Addr) l;  /* Identify this shared object.  */
+      /* This function will get called to fix up the GOT entry indicated by
+         the offset on the stack, and then jump to the resolved address.  */
+      got[2] = (Elf64_Addr) &_dl_runtime_resolve;
+    }
+
+  return lazy;
+}
+
+/* This code is used in dl-runtime.c to call the `fixup' function
+   and then redirect to the address it returns.  */
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+	.globl _dl_runtime_resolve
+	.type _dl_runtime_resolve, @function
+_dl_runtime_resolve:
+	save %sp, -160, %sp
+	mov %g1, %o1
+	call fixup
+	 mov %g2, %o0
+	jmp %o0
+	 restore
+	.size _dl_runtime_resolve, .-_dl_runtime_resolve
+");
+
+/* The PLT uses Elf64_Rela relocs.  */
+#define elf_machine_relplt elf_machine_rela
+
+
+/* Mask identifying addresses reserved for the user program,
+   where the dynamic linker should not map anything.  */
+#define ELF_MACHINE_USER_ADDRESS_MASK	???
+
+/* Initial entry point code for the dynamic linker.
+   The C function `_dl_start' is the real entry point;
+   its return value is the user program's entry point.  */
+
+#define __S1(x)	#x
+#define __S(x)	__S1(x)
+
+#define RTLD_START __asm__ ( "\
+	.global _start
+	.type _start, @function
+_start:
+   /* Make room for functions to drop their arguments on the stack.  */
+	sub	%sp, 6*8, %sp
+   /* Pass pointer to argument block to _dl_start.  */
+	call	_dl_start
+	 add	 %sp," __S(STACK_BIAS) "+22*8,%o0
+	/* FALLTHRU */
+
+	.global _dl_start_user
+	.type _dl_start_user, @function
+_dl_start_user:
+   /* Load the GOT register.  */
+1:	rd	%pc,%g1
+	sethi	%hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%l7
+	or	%l2,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%l7
+	add	%l7,%g1,%l7
+   /* Save the user entry point address in %l0.  */
+	mov	%o0,%l0
+   /* See if we were run as a command with the executable file name as an
+      extra leading argument.  If so, adjust the stack pointer.  */
+	sethi	%hi(_dl_skip_args), %g2
+	or	%g2, %lo(_dl_skip_args), %g2
+	ld	[%l7+%g2], %i0
+	brz,pt	%i0, 2f
+	 ldx	[%sp+" __S(STACK_BIAS) "+22*8], %i1
+	sub	%i1, %i0, %i1
+	sllx	%i0, 3, %i2
+	add	%sp, %i2, %sp
+	stx	%i1, [%sp+" __S(STACK_BIAS) "+22*8]
+   /* Load _dl_default_scope[2] to pass to _dl_init_next.  */
+2:	sethi	%hi(_dl_default_scope), %g2
+	or	%g2, %lo(_dl_defalt_scope), %g2
+	add	%g2, 2*8, %g2
+	ldx	[%l7+%g2], %l1
+   /* Call _dl_init_next to return the address of an initializer to run.  */
+3:	call	_dl_init_next
+	 mov	%l1, %o0
+	brz,pn	%o0, 4f
+	 nop
+	jmpl	%o0, %o7
+	 nop
+	ba,a	3b
+   /* Clear the startup flag.  */
+4:	sethi	%hi(_dl_starting_up), %g2
+	or	%g2, %lo(_dl_starting_up), %g2
+	st	%g0, [%l7+%g2]
+   /* Pass our finalizer function to the user in %g1
+	sethi	%hi(_dl_fini), %g1
+	or	%g1, %lo(_dl_fini), %g1
+	ldx	[%l7+%g1], %g1
+   /* Jump to the user's entry point & undo the allocation of the xtra regs.  */
+	jmp	%l0
+	 add	%sp, 6*8, %sp
+	.size _dl_start_user, .-_dl_start_user");