Initial checkin of binutils 2.24.

Change-Id: I0dfcbae6608dded6c3586bf5f4ac27e9612e70a2

20 files changed, 394 insertions, 0 deletions

diff --git a/binutils-2.24/ld/testsuite/ld-gc/abi-note.d b/binutils-2.24/ld/testsuite/ld-gc/abi-note.d
new file mode 100644
index 0000000..d796ccc
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/abi-note.d
@@ -0,0 +1,9 @@
+#name: --gc-sections with note section
+#ld: --gc-sections -e _start
+#readelf: -S --wide
+#target: *-*-linux* *-*-gnu*
+#notarget: *-*-*aout *-*-*oldld
+
+#...
+.* .note.ABI-tag[ 	]+NOTE.*
+#...
diff --git a/binutils-2.24/ld/testsuite/ld-gc/abi-note.s b/binutils-2.24/ld/testsuite/ld-gc/abi-note.s
new file mode 100644
index 0000000..22536c0
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/abi-note.s
@@ -0,0 +1,15 @@
+	.text
+	.global _start
+_start:
+	.long 1
+
+	.section ".note.ABI-tag", "a"
+	.p2align 2
+	.long 1f - 0f		/* name length */
+	.long 3f - 2f		/* data length */
+	.long  1		/* note type */
+0:	.asciz "GNU"		/* vendor name */
+1:	.p2align 2
+2:	.long 1
+	.long 2
+3:	.p2align 2		/* pad out section */
diff --git a/binutils-2.24/ld/testsuite/ld-gc/dummy.s b/binutils-2.24/ld/testsuite/ld-gc/dummy.s
new file mode 100644
index 0000000..403f980
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/dummy.s
@@ -0,0 +1 @@
+# Dummy
diff --git a/binutils-2.24/ld/testsuite/ld-gc/gc.c b/binutils-2.24/ld/testsuite/ld-gc/gc.c
new file mode 100644
index 0000000..3b0e655
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/gc.c
@@ -0,0 +1,41 @@
+int unused_var = 7;
+int used_var = 7;
+
+int
+unused_func (int v)
+{
+  return 3 * unused_var;
+}
+
+int
+__attribute__((noinline))
+used_func (int v)
+{
+  return 2 * used_var;
+}
+
+int
+main (void)
+{
+  return used_func (5);
+}
+
+void
+dummy_func (void)
+{
+  /* These are here in case the target prepends an underscore to
+     the start of function names.  They are inside a dummy function
+     so that they will appear at the end of gcc's assembler output,
+     after the definitions of main() and used_func(), rather than
+     at the beginning of the file.  */
+
+  __asm__(".ifndef main\n\
+.global main\n\
+.set main, _main\n\
+.endif");
+
+  __asm__(".ifndef used_func\n\
+.global used_func\n\
+.set used_func, _used_func\n\
+.endif");
+}
diff --git a/binutils-2.24/ld/testsuite/ld-gc/gc.exp b/binutils-2.24/ld/testsuite/ld-gc/gc.exp
new file mode 100644
index 0000000..ddbbd51
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/gc.exp
@@ -0,0 +1,138 @@
+# Expect script for ld-gc tests
+#   Copyright 2008, 2009, 2010, 2012
+#   Free Software Foundation, Inc.
+#
+# This file is part of the GNU Binutils.
+#
+# 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.
+
+# These tests require --gc-sections
+if ![check_gc_sections_available] {
+    return
+}
+
+set cflags "-ffunction-sections -fdata-sections"
+set objfile "tmpdir/gc.o"
+
+if [istarget powerpc64*-*-*] {
+    # otherwise with -mcmodel=medium gcc we get XPASSes.
+    set cflags "$cflags -mminimal-toc"
+}
+
+if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
+    # Otherwise tests FAIL due to _.frame
+    set cflags "$cflags -fomit-frame-pointer -mshort"
+}
+
+if { [is_remote host] || [which $CC] != 0 } {
+    ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/gc.c $objfile
+}
+
+proc test_gc { testname filename linker ldflags} {
+    global nm
+    global srcdir
+    global subdir
+    global nm_output
+    global objfile
+
+    if ![file readable $objfile ] {
+	untested $testname
+	return
+    }
+
+    set outfile "tmpdir/$filename"
+    set options "-L$srcdir/$subdir"
+    append options " " $ldflags " " [ld_simple_link_defsyms] " " $objfile
+
+    # SH64 targets needs an extra ld option for this test.
+    if [istarget sh64*-*-*] {
+	if [istarget sh64*l*-*-*] {
+	    set options "-mshlelf32 $options"
+	} else {
+	    set options "-mshelf32 $options"
+	}
+    }
+
+    if ![ld_simple_link $linker $outfile $options] {
+	fail $testname
+	return
+    }
+    if ![ld_nm $nm "" $outfile] {
+	unresolved $testname
+	return
+    }
+    if {![info exists nm_output(used_func)] \
+	    || ![info exists nm_output(used_var)]} {
+	send_log "used sections do not exist\n"
+	verbose "used sections do not exist"
+	fail $testname
+	return
+    }
+    #ppc64_elf_gc_mark_hook needs to be taught how to look through
+    #the .toc section to properly mark variable sections for gc.
+    setup_xfail "powerpc64*-*-*"
+    if {[info exists nm_output(unused_func)] \
+	    || [info exists nm_output(unused_var)]} {
+	send_log "unused section still here\n"
+	verbose "unused section still here"
+	fail $testname
+	return
+    }
+    pass $testname
+}
+
+test_gc "Check --gc-section" "gcexe" $ld "--gc-sections -e main"
+test_gc "Check --gc-section/-q" "gcrexe" $ld "--gc-sections -q -e main"
+test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
+test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
+
+run_dump_test "noent"
+run_dump_test "abi-note"
+run_dump_test "start"
+
+if { [is_elf_format] && [check_shared_lib_support] } then {
+    set gasopt ""
+    if { [istarget tic6x-*] } then {
+	set gasopt "-mpic -mpid=near"
+    }
+    if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/libpersonality.s tmpdir/libpersonality.o]
+	|| ![ld_simple_link $ld tmpdir/libpersonality.so "-shared tmpdir/libpersonality.o"] } then {
+	fail libpersonality
+    } else {
+	run_dump_test "personality"
+    }
+}
+
+if { [is_remote host] || [which $CC] != 0 } {
+    if { [istarget "*-*-linux*"]
+	 || [istarget "*-*-nacl*"]
+	 || [istarget "*-*-gnu*"] } {
+	ld_compile "$CC -fPIC $CFLAGS $cflags" $srcdir/$subdir/pr11218-1.c tmpdir/pr11218-1.o
+	ld_simple_link $ld tmpdir/pr11218-1.so "-shared tmpdir/pr11218-1.o"
+ 	ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/pr11218-2.c tmpdir/pr11218-2.o
+	run_dump_test "pr11218"
+    }
+}
+
+if { [is_remote host] || [which $CC] != 0 } {
+	ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
+	run_dump_test "pr13683"
+}
+
+if { [is_remote host] || [which $CC] != 0 } {
+    ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
+    run_dump_test "pr14265"
+}
diff --git a/binutils-2.24/ld/testsuite/ld-gc/libpersonality.s b/binutils-2.24/ld/testsuite/ld-gc/libpersonality.s
new file mode 100644
index 0000000..b19ce2b
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/libpersonality.s
@@ -0,0 +1,11 @@
+	.weak	__gxx_personality_v0
+	.type	__gxx_personality_v0,%function
+__gxx_personality_v0:
+	.long 0
+	.size	__gxx_personality_v0, . - __gxx_personality_v0
+
+	.globl	__gxx_personality_v1
+	.type	__gxx_personality_v1,%function
+__gxx_personality_v1:
+	.long 0
+	.size	__gxx_personality_v1, . - __gxx_personality_v1
diff --git a/binutils-2.24/ld/testsuite/ld-gc/noent.d b/binutils-2.24/ld/testsuite/ld-gc/noent.d
new file mode 100644
index 0000000..1741a74
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/noent.d
@@ -0,0 +1,3 @@
+# name: --gc-sections -r without -e
+# ld: --gc-sections -r
+# error: gc-sections requires either an entry or an undefined symbol
diff --git a/binutils-2.24/ld/testsuite/ld-gc/noent.s b/binutils-2.24/ld/testsuite/ld-gc/noent.s
new file mode 100644
index 0000000..ea74bf4
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/noent.s
@@ -0,0 +1,4 @@
+	.text
+	.globl entry
+entry:
+	.long 0
diff --git a/binutils-2.24/ld/testsuite/ld-gc/personality.d b/binutils-2.24/ld/testsuite/ld-gc/personality.d
new file mode 100644
index 0000000..f3cf652
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/personality.d
@@ -0,0 +1,10 @@
+#name: --gc-sections with __gxx_personality
+#ld: --gc-sections -e main -L tmpdir -lpersonality
+#nm: -n
+#xfail: bfin-*-* cris*-*-* frv-*-* mn10300-*-* vax-*-* xtensa-*-* metag-*-*
+# above targets don't support cfi
+
+#failif
+#...
+.*gxx_personality.*
+#...
diff --git a/binutils-2.24/ld/testsuite/ld-gc/personality.s b/binutils-2.24/ld/testsuite/ld-gc/personality.s
new file mode 100644
index 0000000..6fac355
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/personality.s
@@ -0,0 +1,28 @@
+	.section	.text.loseme,"ax",%progbits
+	.globl	loseme
+	.type	loseme,%function
+loseme:
+	.cfi_startproc
+	.cfi_personality 0,__gxx_personality_v0
+	.long 0
+	.cfi_endproc
+	.size loseme, . - loseme
+
+	.section	.text.loseme2,"ax",%progbits
+	.globl	loseme2
+	.type	loseme2,%function
+loseme2:
+	.cfi_startproc
+	.cfi_personality 0,__gxx_personality_v1
+	.long 0
+	.cfi_endproc
+	.size loseme2, . - loseme2
+
+	.section	.text.main,"ax",%progbits
+	.globl	main
+	.type	main, %function
+main:
+	.cfi_startproc
+	.long 0
+	.cfi_endproc
+	.size main, . - main
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr11218-1.c b/binutils-2.24/ld/testsuite/ld-gc/pr11218-1.c
new file mode 100644
index 0000000..9cc79f0
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr11218-1.c
@@ -0,0 +1,5 @@
+extern void unresolved_detected_at_runtime_not_at_linktime(void);
+void foo_in_so(void)
+{
+   unresolved_detected_at_runtime_not_at_linktime();
+}
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr11218-2.c b/binutils-2.24/ld/testsuite/ld-gc/pr11218-2.c
new file mode 100644
index 0000000..5f15802
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr11218-2.c
@@ -0,0 +1,14 @@
+extern void foo_in_so(void);
+extern void unresolved_detected_at_runtime_not_at_linktime (void);
+
+void call_unresolved(void)
+{
+   unresolved_detected_at_runtime_not_at_linktime();
+}
+
+int main(int argc, char *argv[])
+{
+   foo_in_so();
+
+   return 0;
+}
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr11218.d b/binutils-2.24/ld/testsuite/ld-gc/pr11218.d
new file mode 100644
index 0000000..fc26940
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr11218.d
@@ -0,0 +1,5 @@
+# name: --gc-sections with shared library
+# source: dummy.s
+# ld: --gc-sections -e main tmpdir/pr11218-2.o tmpdir/pr11218-1.so
+# target: *-*-linux* *-*-gnu*
+# error: undefined reference to `unresolved_detected_at_runtime_not_at_linktime'
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr13683.c b/binutils-2.24/ld/testsuite/ld-gc/pr13683.c
new file mode 100644
index 0000000..c585e06
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr13683.c
@@ -0,0 +1,28 @@
+void foo(void);

+

+int main(void)

+{

+   foo ();

+

+   for (;;)

+	;

+}

+

+int a;

+

+void foo1(void)

+{

+	a = 1;

+}

+

+void foo2(void)

+{

+	a = 2;

+}

+

+void foo3(void)

+{

+	a = 3;

+}

+

+

diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr13683.d b/binutils-2.24/ld/testsuite/ld-gc/pr13683.d
new file mode 100644
index 0000000..b38b9d1
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr13683.d
@@ -0,0 +1,12 @@
+#name: --gc-sections with --defsym
+#source: dummy.s
+#ld: --gc-sections -e main --defsym foo=foo2 tmpdir/pr13683.o
+#nm: --format=bsd
+#xfail: sh64*-*-* iq2000-*-* lm32-*-* epiphany-*-* mips64vr-*-* frv-*-* m32c-*-* rl78-*-* rx-*-* sh-*-* powerpc*-*-eabivle msp430-*-*
+
+# Note - look for both "foo" and "foo2" being defined, non-zero function symbols
+
+#...
+0*[1-9a-f]+[0-9a-f]*[ 	](T|D)[ 	]_*foo
+0*[1-9a-f]+[0-9a-f]*[ 	](T|D)[ 	]_*foo2
+#...
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr14265.c b/binutils-2.24/ld/testsuite/ld-gc/pr14265.c
new file mode 100644
index 0000000..6bb8f9a
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr14265.c
@@ -0,0 +1,20 @@
+int foo0 __attribute__((used,section(".foo0.0")));
+int foo1 __attribute__((used,section(".foo1.0")));
+int foo2 __attribute__((used,section(".foo2.0")));
+
+extern unsigned long    __foo0_start;
+extern unsigned long    __foo0_end;
+
+extern unsigned long    __foo1_start;
+extern unsigned long    __foo1_end;
+
+extern unsigned long    __foo2_start;
+extern unsigned long    __foo2_end;
+
+int
+main (void)
+{
+  return ((__foo0_end - __foo0_start) -
+	  (__foo1_end - __foo1_start) -
+	  (__foo2_end - __foo2_start));
+}
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr14265.d b/binutils-2.24/ld/testsuite/ld-gc/pr14265.d
new file mode 100644
index 0000000..04af982
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr14265.d
@@ -0,0 +1,13 @@
+#name: --gc-sections with KEEP
+#source: dummy.s
+#ld: --gc-sections -T pr14265.t -e 0 tmpdir/pr14265.o
+#nm: --format=bsd --numeric-sort
+
+#...
+[0-9a-f]+[ 	]d[ 	]_*foo1_start
+[0-9a-f]+[ 	]D[ 	]_*foo1
+[0-9a-f]+[ 	]d[ 	]_*foo1_end
+[0-9a-f]+[ 	]d[ 	]_*foo2_start
+[0-9a-f]+[ 	]D[ 	]_*foo2
+[0-9a-f]+[ 	]d[ 	]_*foo2_end
+#...
diff --git a/binutils-2.24/ld/testsuite/ld-gc/pr14265.t b/binutils-2.24/ld/testsuite/ld-gc/pr14265.t
new file mode 100644
index 0000000..12a2d67
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/pr14265.t
@@ -0,0 +1,22 @@
+SECTIONS
+{
+    .text : { *(.text) }
+
+    __foo0_start = .;
+    .foo0 : { *(.foo0.*) }
+    __foo0_end = .;
+
+    __foo1_start = .;
+    .foo1 : { KEEP(*(.foo1.*)) }
+    __foo1_end = .;
+
+    .foo2 : {
+        __foo2_start = .;
+        KEEP(*(.foo2.*))
+        __foo2_end = .;
+    }
+    /DISCARD/ : { *(*) }
+}
+
+ASSERT (__foo1_start < __foo1_end, "foo1 not KEPT");
+ASSERT ((__foo1_end - __foo1_start) == (__foo2_end - __foo2_start),"foo2 not KEPT");
diff --git a/binutils-2.24/ld/testsuite/ld-gc/start.d b/binutils-2.24/ld/testsuite/ld-gc/start.d
new file mode 100644
index 0000000..18e74c1
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/start.d
@@ -0,0 +1,9 @@
+#name: --gc-sections with __start_
+#ld: --gc-sections -e _start
+#nm: -n
+#target: *-*-linux* *-*-gnu*
+#notarget: *-*-*aout *-*-*oldld frv-*-linux* metag-*-linux*
+
+#...
+[0-9a-f]+ D +__start__foo
+#...
diff --git a/binutils-2.24/ld/testsuite/ld-gc/start.s b/binutils-2.24/ld/testsuite/ld-gc/start.s
new file mode 100644
index 0000000..a417a97
--- /dev/null
+++ b/binutils-2.24/ld/testsuite/ld-gc/start.s
@@ -0,0 +1,6 @@
+.globl _start
+_start:
+	.dc.a	__start__foo
+	.section	_foo,"aw",%progbits
+foo:
+	.long	1