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authorIan Lance Taylor <ian@airs.com>2009-03-28 05:22:30 +0000
committerIan Lance Taylor <ian@airs.com>2009-03-28 05:22:30 +0000
commitfd03461a93f2e080e317da40dc4929ee437ffb76 (patch)
treeb39eddbb67236e3cb29f78f93ef59b9737c8fe78 /gold
parent1b31f75d637045dd1fb0c8ee3dedf21ee6f147f5 (diff)
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* ffsll.c: New file.
* configure.ac: Call AC_REPLACE_FUNCS on ffsll. * gold.h (ffsll): Declare if HAVE_FFSLL is not defined. * ftruncate.c (ftruncate): Declare before definition. * mremap.c (mremap): Likewise. * pread.c (pread): Likewise. * configure, Makefile.in, config.in: Rebuild.
Diffstat (limited to 'gold')
-rw-r--r--gold/ChangeLog8
-rw-r--r--gold/Makefile.in4
-rw-r--r--gold/config.in3
-rwxr-xr-xgold/configure3
-rw-r--r--gold/configure.ac2
-rw-r--r--gold/ffsll.c43
-rw-r--r--gold/ftruncate.c2
-rw-r--r--gold/gold.h6
-rw-r--r--gold/mremap.c2
-rw-r--r--gold/pread.c4
10 files changed, 72 insertions, 5 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index f6f638f..b6ad2e2 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,13 @@
2009-03-27 Ian Lance Taylor <iant@google.com>
+ * ffsll.c: New file.
+ * configure.ac: Call AC_REPLACE_FUNCS on ffsll.
+ * gold.h (ffsll): Declare if HAVE_FFSLL is not defined.
+ * ftruncate.c (ftruncate): Declare before definition.
+ * mremap.c (mremap): Likewise.
+ * pread.c (pread): Likewise.
+ * configure, Makefile.in, config.in: Rebuild.
+
* mremap.c: New file.
* configure.ac: Call AC_REPLACE_FUNCS on mremap.
* gold.h (MREMAP_MAYMOVE): Define if HAVE_MREMAP is not defined.
diff --git a/gold/Makefile.in b/gold/Makefile.in
index 8c1d00d..fe3474d 100644
--- a/gold/Makefile.in
+++ b/gold/Makefile.in
@@ -50,7 +50,8 @@ DIST_COMMON = README $(am__configure_deps) $(srcdir)/../config.guess \
$(srcdir)/../mkinstalldirs $(srcdir)/Makefile.am \
$(srcdir)/Makefile.in $(srcdir)/config.in \
$(top_srcdir)/configure $(top_srcdir)/po/Make-in ChangeLog \
- NEWS TODO ftruncate.c mremap.c pread.c yyscript.c yyscript.h
+ NEWS TODO ffsll.c ftruncate.c mremap.c pread.c yyscript.c \
+ yyscript.h
subdir = .
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/../config/depstand.m4 \
@@ -535,6 +536,7 @@ mostlyclean-compile:
distclean-compile:
-rm -f *.tab.c
+@AMDEP_TRUE@@am__include@ @am__quote@$(DEPDIR)/ffsll.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@$(DEPDIR)/ftruncate.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@$(DEPDIR)/mremap.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@$(DEPDIR)/pread.Po@am__quote@
diff --git a/gold/config.in b/gold/config.in
index 93264cf..97af335 100644
--- a/gold/config.in
+++ b/gold/config.in
@@ -34,6 +34,9 @@
/* Define to 1 if you have the <ext/hash_set> header file. */
#undef HAVE_EXT_HASH_SET
+/* Define to 1 if you have the `ffsll' function. */
+#undef HAVE_FFSLL
+
/* Define to 1 if you have the `ftruncate' function. */
#undef HAVE_FTRUNCATE
diff --git a/gold/configure b/gold/configure
index 6235904..8cd5153 100755
--- a/gold/configure
+++ b/gold/configure
@@ -5168,7 +5168,8 @@ done
-for ac_func in pread ftruncate mremap
+
+for ac_func in pread ftruncate mremap ffsll
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
diff --git a/gold/configure.ac b/gold/configure.ac
index 335ecb3..e8d5762 100644
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -312,7 +312,7 @@ LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
AC_SUBST(LFS_CFLAGS)
AC_CHECK_FUNCS(chsize)
-AC_REPLACE_FUNCS(pread ftruncate mremap)
+AC_REPLACE_FUNCS(pread ftruncate mremap ffsll)
# Link in zlib if we can. This allows us to write compressed sections.
AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
diff --git a/gold/ffsll.c b/gold/ffsll.c
new file mode 100644
index 0000000..aeae845
--- /dev/null
+++ b/gold/ffsll.c
@@ -0,0 +1,43 @@
+/* ffsll.c -- version of ffsll for gold. */
+
+/* Copyright 2009 Free Software Foundation, Inc.
+ Written by Ian Lance Taylor <iant@google.com>.
+
+ This file is part of gold.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "config.h"
+
+#include <string.h>
+
+extern int ffsll (long long);
+
+/* This file implements ffsll for systems which don't have it. We use
+ ffsll if possible because gcc supports it as a builtin which will
+ use a machine instruction if there is one. */
+
+int
+ffsll (long long arg)
+{
+ unsigned long long i;
+ int ret;
+
+ ret = 0;
+ for (i = (unsigned long long) arg; i != 0; i >>= 1)
+ ++ret;
+ return ret;
+}
diff --git a/gold/ftruncate.c b/gold/ftruncate.c
index ff7d11b..fc0bbc8 100644
--- a/gold/ftruncate.c
+++ b/gold/ftruncate.c
@@ -9,6 +9,8 @@
#include <sys/types.h>
#include <fcntl.h>
+extern int ftruncate (int, off_t);
+
#ifdef F_CHSIZE
int
diff --git a/gold/gold.h b/gold/gold.h
index dc8da55..a377f96 100644
--- a/gold/gold.h
+++ b/gold/gold.h
@@ -127,7 +127,11 @@ extern "C" int ftruncate(int, off_t);
#ifndef HAVE_MREMAP
#define MREMAP_MAYMOVE 1
-extern "C" void *mremap (void *, size_t, size_t, int, ...);
+extern "C" void *mremap(void *, size_t, size_t, int, ...);
+#endif
+
+#ifndef HAVE_FFSLL
+extern "C" int ffsll(long long);
#endif
namespace gold
diff --git a/gold/mremap.c b/gold/mremap.c
index caa7bc7..332fded 100644
--- a/gold/mremap.c
+++ b/gold/mremap.c
@@ -40,6 +40,8 @@
# define MAP_ANONYMOUS MAP_ANON
#endif
+extern void *mremap (void *, size_t, size_t, int, ...);
+
void *
mremap (void *old_address, size_t old_size, size_t new_size,
int flags ATTRIBUTE_UNUSED, ...)
diff --git a/gold/pread.c b/gold/pread.c
index 1b0cf40..a7a7d9c 100644
--- a/gold/pread.c
+++ b/gold/pread.c
@@ -30,8 +30,10 @@
#include <sys/types.h>
#include <unistd.h>
+extern ssize_t pread (int, void *, size_t, off_t);
+
ssize_t
-pread(int fd, void* buf, size_t count, off_t offset)
+pread (int fd, void *buf, size_t count, off_t offset)
{
if (lseek(fd, offset, SEEK_SET) != offset)
return -1;