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Support init priority on Solaris 

libgcc:
	* config/ia64/crtbegin.S: Check HAVE_INITFINI_ARRAY_SUPPORT
	value.
	* config/ia64/crtend.S: Likewise.

	gcc:
	* acinclude.m4 (gcc_AC_INITFINI_ARRAY): Allow for differences in
	assembler syntax.
	Support Solaris ld.
	Define HAVE_INITFINI_ARRAY_SUPPORT as 0/1.

	* config/sol2.h (SUPPORTS_INIT_PRIORITY): Define to
	HAVE_INITFINI_ARRAY_SUPPORT.
	* config/initfini-array.h: Check HAVE_INITFINI_ARRAY_SUPPORT
	value.

	* configure.ac (gcc_cv_as_sparc_nobits): Remove.
	* config/sparc/sparc.c (sparc_solaris_elf_asm_named_section):
	Don't check HAVE_AS_SPARC_NOBITS.
	Heed SECTION_NOTYPE.

	* configure: Regenerate.
	* config.in: Regenerate.

From-SVN: r230013
This commit is contained in:
Rainer Orth 2015-11-09 11:33:30 +00:00 committed by Rainer Orth
parent e1c78addb3
commit e6b6bf09dd
11 changed files with 187 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
gcc/ChangeLog
View File

@ -1,3 +1,23 @@
2015-11-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* acinclude.m4 (gcc_AC_INITFINI_ARRAY): Allow for differences in
assembler syntax.
Support Solaris ld.
Define HAVE_INITFINI_ARRAY_SUPPORT as 0/1.
* config/sol2.h (SUPPORTS_INIT_PRIORITY): Define to
HAVE_INITFINI_ARRAY_SUPPORT.
* config/initfini-array.h: Check HAVE_INITFINI_ARRAY_SUPPORT
value.
* configure.ac (gcc_cv_as_sparc_nobits): Remove.
* config/sparc/sparc.c (sparc_solaris_elf_asm_named_section):
Don't check HAVE_AS_SPARC_NOBITS.
Heed SECTION_NOTYPE.
* configure: Regenerate.
* config.in: Regenerate.
2015-11-09 Eric Botcazou <ebotcazou@adacore.com>
PR middle-end/68253

95
gcc/acinclude.m4
View File

@ -309,43 +309,96 @@ int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
gcc_cv_initfini_array=yes
fi
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
cat > conftest.s <<\EOF
.section .dtors,"a",%progbits
case $target:$gas in
*:yes)
sh_flags='"a"'
sh_type='%progbits'
;;
i?86-*-solaris2*:no | x86_64-*-solaris2*:no)
sh_flags='"a"'
sh_type='@progbits'
;;
sparc*-*-solaris2*:no)
sh_flags='#alloc'
sh_type='#progbits'
sh_quote='"'
;;
esac
case "$target:$gnu_ld" in
*:yes)
cat > conftest.s <<EOF
.section .dtors,$sh_flags,$sh_type
.balign 4
.byte 'A', 'A', 'A', 'A'
.section .ctors,"a",%progbits
.section .ctors,$sh_flags,$sh_type
.balign 4
.byte 'B', 'B', 'B', 'B'
.section .fini_array.65530,"a",%progbits
.section .fini_array.65530,$sh_flags,$sh_type
.balign 4
.byte 'C', 'C', 'C', 'C'
.section .init_array.65530,"a",%progbits
.section .init_array.65530,$sh_flags,$sh_type
.balign 4
.byte 'D', 'D', 'D', 'D'
.section .dtors.64528,"a",%progbits
.section .dtors.64528,$sh_flags,$sh_type
.balign 4
.byte 'E', 'E', 'E', 'E'
.section .ctors.64528,"a",%progbits
.section .ctors.64528,$sh_flags,$sh_type
.balign 4
.byte 'F', 'F', 'F', 'F'
.section .fini_array.01005,"a",%progbits
.section .fini_array.01005,$sh_flags,$sh_type
.balign 4
.byte 'G', 'G', 'G', 'G'
.section .init_array.01005,"a",%progbits
.section .init_array.01005,$sh_flags,$sh_type
.balign 4
.byte 'H', 'H', 'H', 'H'
.text
.globl _start
_start:
EOF
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .init_array conftest \
| grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .fini_array conftest \
| grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
gcc_cv_initfini_array=yes
fi
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .init_array conftest \
| grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .fini_array conftest \
| grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
gcc_cv_initfini_array=yes
fi
;;
*-*-solaris2*:no)
# When Solaris ld added constructor priority support, it was
# decided to only handle .init_array.N/.fini_array.N since
# there was no need for backwards compatibility with
# .ctors.N/.dtors.N. .ctors/.dtors remain as separate
# sections with correct execution order resp. to
# .init_array/.fini_array, while gld merges them into
# .init_array/.fini_array.
cat > conftest.s <<EOF
.section $sh_quote.fini_array.65530$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'C', 'C', 'C', 'C'
.section $sh_quote.init_array.65530$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'D', 'D', 'D', 'D'
.section $sh_quote.fini_array.01005$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'G', 'G', 'G', 'G'
.section $sh_quote.init_array.01005$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'H', 'H', 'H', 'H'
.text
.globl _start
_start:
EOF
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .init_array conftest \
| grep HHHHDDDD > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .fini_array conftest \
| grep GGGGCCCC > /dev/null 2>&1; then
gcc_cv_initfini_array=yes
fi
;;
esac
changequote(,)dnl
rm -f conftest conftest.*
changequote([,])dnl
@ -375,10 +428,10 @@ changequote([,])dnl
fi])
enable_initfini_array=$gcc_cv_initfini_array
])
if test $enable_initfini_array = yes; then
AC_DEFINE(HAVE_INITFINI_ARRAY_SUPPORT, 1,
[Define .init_array/.fini_array sections are available and working.])
fi])
AC_DEFINE_UNQUOTED(HAVE_INITFINI_ARRAY_SUPPORT,
[`if test $enable_initfini_array = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if .init_array/.fini_array sections are available and working.])
])
dnl # _gcc_COMPUTE_GAS_VERSION
dnl # Used by gcc_GAS_VERSION_GTE_IFELSE

9
gcc/config.in
View File

@ -598,12 +598,6 @@
#endif
/* Define to 1 if your assembler supports #nobits, 0 otherwise. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_SPARC_NOBITS
#endif
/* Define if your assembler and linker support unaligned PC relative relocs.
*/
#ifndef USED_FOR_TARGET
@ -1329,7 +1323,8 @@
#endif
/* Define .init_array/.fini_array sections are available and working. */
/* Define 0/1 if .init_array/.fini_array sections are available and working.
*/
#ifndef USED_FOR_TARGET
#undef HAVE_INITFINI_ARRAY_SUPPORT
#endif

2
gcc/config/initfini-array.h
View File

@ -23,7 +23,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_INITFINI_ARRAY_SUPPORT
#if HAVE_INITFINI_ARRAY_SUPPORT
#define USE_INITFINI_ARRAY

6
gcc/config/sol2.h
View File

@ -398,11 +398,9 @@ along with GCC; see the file COPYING3. If not see
#define NO_DBX_BNSYM_ENSYM 1
#endif
#ifndef USE_GLD
/* The Solaris linker doesn't understand constructor priorities. */
/* Enable constructor priorities if the configured linker supports it. */
#undef SUPPORTS_INIT_PRIORITY
#define SUPPORTS_INIT_PRIORITY 0
#endif
#define SUPPORTS_INIT_PRIORITY HAVE_INITFINI_ARRAY_SUPPORT
/* Solaris has an implementation of __enable_execute_stack. */
#define HAVE_ENABLE_EXECUTE_STACK

14
gcc/config/sparc/sparc.c
View File

@ -9868,14 +9868,12 @@ sparc_solaris_elf_asm_named_section (const char *name, unsigned int flags,
if (flags & SECTION_CODE)
fputs (",#execinstr", asm_out_file);
/* Sun as only supports #nobits/#progbits since Solaris 10. */
if (HAVE_AS_SPARC_NOBITS)
{
if (flags & SECTION_BSS)
fputs (",#nobits", asm_out_file);
else
fputs (",#progbits", asm_out_file);
}
if (flags & SECTION_NOTYPE)
;
else if (flags & SECTION_BSS)
fputs (",#nobits", asm_out_file);
else
fputs (",#progbits", asm_out_file);
fputc ('\n', asm_out_file);
}

127
gcc/configure vendored
View File

@ -22930,43 +22930,96 @@ fi
gcc_cv_initfini_array=yes
fi
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
cat > conftest.s <<\EOF
.section .dtors,"a",%progbits
case $target:$gas in
*:yes)
sh_flags='"a"'
sh_type='%progbits'
;;
i?86-*-solaris2*:no | x86_64-*-solaris2*:no)
sh_flags='"a"'
sh_type='@progbits'
;;
sparc*-*-solaris2*:no)
sh_flags='#alloc'
sh_type='#progbits'
sh_quote='"'
;;
esac
case "$target:$gnu_ld" in
*:yes)
cat > conftest.s <<EOF
.section .dtors,$sh_flags,$sh_type
.balign 4
.byte 'A', 'A', 'A', 'A'
.section .ctors,"a",%progbits
.section .ctors,$sh_flags,$sh_type
.balign 4
.byte 'B', 'B', 'B', 'B'
.section .fini_array.65530,"a",%progbits
.section .fini_array.65530,$sh_flags,$sh_type
.balign 4
.byte 'C', 'C', 'C', 'C'
.section .init_array.65530,"a",%progbits
.section .init_array.65530,$sh_flags,$sh_type
.balign 4
.byte 'D', 'D', 'D', 'D'
.section .dtors.64528,"a",%progbits
.section .dtors.64528,$sh_flags,$sh_type
.balign 4
.byte 'E', 'E', 'E', 'E'
.section .ctors.64528,"a",%progbits
.section .ctors.64528,$sh_flags,$sh_type
.balign 4
.byte 'F', 'F', 'F', 'F'
.section .fini_array.01005,"a",%progbits
.section .fini_array.01005,$sh_flags,$sh_type
.balign 4
.byte 'G', 'G', 'G', 'G'
.section .init_array.01005,"a",%progbits
.section .init_array.01005,$sh_flags,$sh_type
.balign 4
.byte 'H', 'H', 'H', 'H'
.text
.globl _start
_start:
EOF
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .init_array conftest \
| grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .fini_array conftest \
| grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
gcc_cv_initfini_array=yes
fi
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .init_array conftest \
| grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .fini_array conftest \
| grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
gcc_cv_initfini_array=yes
fi
;;
*-*-solaris2*:no)
# When Solaris ld added constructor priority support, it was
# decided to only handle .init_array.N/.fini_array.N since
# there was no need for backwards compatibility with
# .ctors.N/.dtors.N. .ctors/.dtors remain as separate
# sections with correct execution order resp. to
# .init_array/.fini_array, while gld merges them into
# .init_array/.fini_array.
cat > conftest.s <<EOF
.section $sh_quote.fini_array.65530$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'C', 'C', 'C', 'C'
.section $sh_quote.init_array.65530$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'D', 'D', 'D', 'D'
.section $sh_quote.fini_array.01005$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'G', 'G', 'G', 'G'
.section $sh_quote.init_array.01005$sh_quote,$sh_flags,$sh_type
.align 4
.byte 'H', 'H', 'H', 'H'
.text
.globl _start
_start:
EOF
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .init_array conftest \
| grep HHHHDDDD > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .fini_array conftest \
| grep GGGGCCCC > /dev/null 2>&1; then
gcc_cv_initfini_array=yes
fi
;;
esac
rm -f conftest conftest.*
fi
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@ -23009,11 +23062,12 @@ $as_echo "$gcc_cv_initfini_array" >&6; }
fi
if test $enable_initfini_array = yes; then
$as_echo "#define HAVE_INITFINI_ARRAY_SUPPORT 1" >>confdefs.h
cat >>confdefs.h <<_ACEOF
#define HAVE_INITFINI_ARRAY_SUPPORT `if test $enable_initfini_array = yes; then echo 1; else echo 0; fi`
_ACEOF
fi
# Check if we have .[us]leb128, and support symbol arithmetic with it.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .sleb128 and .uleb128" >&5
@ -24667,39 +24721,6 @@ $as_echo "#define HAVE_AS_REGISTER_PSEUDO_OP 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for #nobits" >&5
$as_echo_n "checking assembler for #nobits... " >&6; }
if test "${gcc_cv_as_sparc_nobits+set}" = set; then :
$as_echo_n "(cached) " >&6
else
gcc_cv_as_sparc_nobits=no
if test x$gcc_cv_as != x; then
$as_echo '.section "nobits",#alloc,#write,#nobits
.section "progbits",#alloc,#write,#progbits' > conftest.s
if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
then
gcc_cv_as_sparc_nobits=yes
else
echo "configure: failed program was" >&5
cat conftest.s >&5
fi
rm -f conftest.o conftest.s
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_sparc_nobits" >&5
$as_echo "$gcc_cv_as_sparc_nobits" >&6; }
cat >>confdefs.h <<_ACEOF
#define HAVE_AS_SPARC_NOBITS `if test $gcc_cv_as_sparc_nobits = yes; then echo 1; else echo 0; fi`
_ACEOF
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -relax option" >&5
$as_echo_n "checking assembler for -relax option... " >&6; }
if test "${gcc_cv_as_sparc_relax+set}" = set; then :

7
gcc/configure.ac
View File

@ -3754,13 +3754,6 @@ AS_HELP_STRING([--disable-fix-cortex-a53-843419],
[AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
[Define if your assembler supports .register.])])
gcc_GAS_CHECK_FEATURE([@%:@nobits], gcc_cv_as_sparc_nobits,,,
[.section "nobits",#alloc,#write,#nobits
.section "progbits",#alloc,#write,#progbits])
AC_DEFINE_UNQUOTED(HAVE_AS_SPARC_NOBITS,
[`if test $gcc_cv_as_sparc_nobits = yes; then echo 1; else echo 0; fi`],
[Define to 1 if your assembler supports #nobits, 0 otherwise.])
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
[-relax], [.text],,
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,

6
libgcc/ChangeLog
View File

@ -1,3 +1,9 @@
2015-11-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/ia64/crtbegin.S: Check HAVE_INITFINI_ARRAY_SUPPORT
value.
* config/ia64/crtend.S: Likewise.
2015-11-07 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* config/visium/lib2funcs.c (__set_trampoline_parity): Use

2
libgcc/config/ia64/crtbegin.S
View File

@ -61,7 +61,7 @@ __dso_handle:
.hidden __dso_handle
#ifdef HAVE_INITFINI_ARRAY_SUPPORT
#if HAVE_INITFINI_ARRAY_SUPPORT
.section .fini_array, "a"
data8 @fptr(__do_global_dtors_aux)

2
libgcc/config/ia64/crtend.S
View File

@ -39,7 +39,7 @@ __DTOR_END__:
__JCR_END__:
data8 0
#ifdef HAVE_INITFINI_ARRAY_SUPPORT
#if HAVE_INITFINI_ARRAY_SUPPORT
.global __do_global_ctors_aux
.hidden __do_global_ctors_aux
#else /* !HAVE_INITFINI_ARRAY_SUPPORT */