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Reset x86 Linux targets to not compressing debug sections by default. Enable compression of debug sections by default in the linker, if so configured.

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PR gas/19109
.	* configure.ac: Note the 'none' is an acceptable argument to
	--enable-compressed-debug-sections.
	* configure: Regenerate.

gas	* configure.ac: Restore --enable-compressed-debug-sections.
	Do not enable compressed debug sections by default for x86 Linux
	targets.
	* configure: Regenerate.

ld	* configure.ac: Add --enable-compressed-debug-sections.
	* configure: Regenerate.
	* config.in: Regenerate.
	* ld.texinfo: Document how to determine the default action for
	debug sections.
	* ldmain.c (main): If DEFAULT_FLAG_COMPRESS_DEBUG is defined then
	set the compress_debug field of the link_info structure to
	zlib-gabi.
	* lexsup.c (elf_static_list_options): Output the default setting
	for the --compress-debug-sections option.
	* NEWS: Mention the new configure option.
This commit is contained in:
Nick Clifton 2015-10-21 13:12:19 +01:00
parent 4cd98a1920
commit 6c3bc0f82c
14 changed files with 124 additions and 20 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2015-10-21 Nick Clifton <nickc@redhat.com>
PR gas/19109
* configure.ac: Note the 'none' is an acceptable argument to
--enable-compressed-debug-sections.
* configure: Regenerate.
2015-10-20 H.J. Lu <hongjiu.lu@intel.com> 2015-10-20 H.J. Lu <hongjiu.lu@intel.com>
PR gas/19109 PR gas/19109

2
configure vendored
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@ -1477,7 +1477,7 @@ Optional Features:
offload target compiler during the build offload target compiler during the build
--enable-gold[=ARG] build gold [ARG={default,yes,no}] --enable-gold[=ARG] build gold [ARG={default,yes,no}]
--enable-ld[=ARG] build ld [ARG={default,yes,no}] --enable-ld[=ARG] build ld [ARG={default,yes,no}]
--enable-compressed-debug-sections={all,gas,gold,ld} --enable-compressed-debug-sections={all,gas,gold,ld,none}
Enable compressed debug sections for gas, gold or ld Enable compressed debug sections for gas, gold or ld
by default by default
--disable-libquadmath do not build libquadmath directory --disable-libquadmath do not build libquadmath directory

2
configure.ac
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@ -397,7 +397,7 @@ esac
# Decide the default method for compressing debug sections. # Decide the default method for compressing debug sections.
# Provide a configure time option to override our default. # Provide a configure time option to override our default.
AC_ARG_ENABLE(compressed_debug_sections, AC_ARG_ENABLE(compressed_debug_sections,
[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld}], [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
[Enable compressed debug sections for gas, gold or ld by [Enable compressed debug sections for gas, gold or ld by
default])], default])],
[ [

8
gas/ChangeLog
View File

@ -1,3 +1,11 @@
2015-10-21 Nick Clifton <nickc@redhat.com>
PR gas/19109
* configure.ac: Restore --enable-compressed-debug-sections.
Do not enable compressed debug sections by default for x86 Linux
targets.
* configure: Regenerate.
2015-10-20 H.J. Lu <hongjiu.lu@intel.com> 2015-10-20 H.J. Lu <hongjiu.lu@intel.com>
PR gas/19109 PR gas/19109

27
gas/configure vendored
View File

@ -764,6 +764,7 @@ enable_plugins
enable_largefile enable_largefile
enable_targets enable_targets
enable_checking enable_checking
enable_compressed_debug_sections
enable_werror enable_werror
enable_build_warnings enable_build_warnings
enable_nls enable_nls
@ -1412,6 +1413,7 @@ Optional Features:
--disable-largefile omit support for large files --disable-largefile omit support for large files
--enable-targets alternative target configurations besides the primary --enable-targets alternative target configurations besides the primary
--enable-checking enable run-time checks --enable-checking enable run-time checks
--enable-compressed-debug-sections compress debug sections by default
--enable-werror treat compile warnings as errors --enable-werror treat compile warnings as errors
--enable-build-warnings enable build-time compiler warnings --enable-build-warnings enable build-time compiler warnings
--disable-nls do not use Native Language Support --disable-nls do not use Native Language Support
@ -10969,7 +10971,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF cat > conftest.$ac_ext <<_LT_EOF
#line 10972 "configure" #line 10974 "configure"
#include "confdefs.h" #include "confdefs.h"
#if HAVE_DLFCN_H #if HAVE_DLFCN_H
@ -11075,7 +11077,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF cat > conftest.$ac_ext <<_LT_EOF
#line 11078 "configure" #line 11080 "configure"
#include "confdefs.h" #include "confdefs.h"
#if HAVE_DLFCN_H #if HAVE_DLFCN_H
@ -11664,6 +11666,19 @@ $as_echo "#define ENABLE_CHECKING 1" >>confdefs.h
fi fi
# PR gas/19109
# Decide the default method for compressing debug sections.
ac_default_compressed_debug_sections=unset
# Provide a configure time option to override our default.
# Check whether --enable-compressed_debug_sections was given.
if test "${enable_compressed_debug_sections+set}" = set; then :
enableval=$enable_compressed_debug_sections; case "${enableval}" in
yes | all | gas) ac_default_compressed_debug_sections=yes ;;
no | none) ac_default_compressed_debug_sections=no ;;
*) ac_default_compressed_debug_sections=unset ;;
esac
fi
using_cgen=no using_cgen=no
@ -12489,15 +12504,11 @@ _ACEOF
done done
# For x86 Linux targets, default to compressing debug sections unless if test x$ac_default_compressed_debug_sections == xyes ; then
# configured otherwise.
case x${enable_compressed_debug_sections}-${target_cpu_type}-${target_os} in
x*gas*|xall*|x-i386-linux-gnu)
$as_echo "#define DEFAULT_FLAG_COMPRESS_DEBUG 1" >>confdefs.h $as_echo "#define DEFAULT_FLAG_COMPRESS_DEBUG 1" >>confdefs.h
;; fi
esac
# Turn on all targets if possible # Turn on all targets if possible
if test ${all_targets} = "yes"; then if test ${all_targets} = "yes"; then

23
gas/configure.ac
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@ -64,6 +64,18 @@ if test x$ac_checking != x ; then
AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.]) AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
fi fi
# PR gas/19109
# Decide the default method for compressing debug sections.
ac_default_compressed_debug_sections=unset
# Provide a configure time option to override our default.
AC_ARG_ENABLE(compressed_debug_sections,
[ --enable-compressed-debug-sections compress debug sections by default],
[case "${enableval}" in
yes | all | gas) ac_default_compressed_debug_sections=yes ;;
no | none) ac_default_compressed_debug_sections=no ;;
*) ac_default_compressed_debug_sections=unset ;;
esac])dnl
using_cgen=no using_cgen=no
AM_BINUTILS_WARNINGS AM_BINUTILS_WARNINGS
@ -536,14 +548,9 @@ changequote([,])dnl
done done
# For x86 Linux targets, default to compressing debug sections unless if test x$ac_default_compressed_debug_sections == xyes ; then
# configured otherwise. AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
case x${enable_compressed_debug_sections}-${target_cpu_type}-${target_os} in fi
x*gas*|xall*|x-i386-linux-gnu)
AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1,
[Define if you want compressed debug sections by default.])
;;
esac
# Turn on all targets if possible # Turn on all targets if possible
if test ${all_targets} = "yes"; then if test ${all_targets} = "yes"; then

15
ld/ChangeLog
View File

@ -1,3 +1,18 @@
2015-10-21 Nick Clifton <nickc@redhat.com>
PR gas/19109
* configure.ac: Add --enable-compressed-debug-sections.
* configure: Regenerate.
* config.in: Regenerate.
* ld.texinfo: Document how to determine the default action for
debug sections.
* ldmain.c (main): If DEFAULT_FLAG_COMPRESS_DEBUG is defined then
set the compress_debug field of the link_info structure to
zlib-gabi.
* lexsup.c (elf_static_list_options): Output the default setting
for the --compress-debug-sections option.
* NEWS: Mention the new configure option.
2015-10-15 H.J. Lu <hongjiu.lu@intel.com> 2015-10-15 H.J. Lu <hongjiu.lu@intel.com>
* ld.texinfo: Fix a typo for "-z noextern-protected-data". * ld.texinfo: Fix a typo for "-z noextern-protected-data".

3
ld/NEWS
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@ -1,5 +1,8 @@
-*- text -*- -*- text -*-
* Add a configure option --enable-compressed-debug-sections={all,ld} to
decide whether DWARF debug sections should be compressed by default.
* Add support for the ARC EM/HS, and ARC600/700 architectures. * Add support for the ARC EM/HS, and ARC600/700 architectures.
* Experimental support for linker garbage collection (--gc-sections) * Experimental support for linker garbage collection (--gc-sections)

3
ld/config.in
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@ -7,6 +7,9 @@
#endif #endif
#define __CONFIG_H__ 1 #define __CONFIG_H__ 1
/* Define if you want compressed debug sections by default. */
#undef DEFAULT_FLAG_COMPRESS_DEBUG
/* Define to 1 if translation of program messages to the user's native /* Define to 1 if translation of program messages to the user's native
language is requested. */ language is requested. */
#undef ENABLE_NLS #undef ENABLE_NLS

25
ld/configure vendored
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@ -788,6 +788,7 @@ enable_64_bit_bfd
with_sysroot with_sysroot
enable_gold enable_gold
enable_got enable_got
enable_compressed_debug_sections
enable_werror enable_werror
enable_build_warnings enable_build_warnings
enable_nls enable_nls
@ -1444,6 +1445,7 @@ Optional Features:
--enable-gold[=ARG] build gold [ARG={default,yes,no}] --enable-gold[=ARG] build gold [ARG={default,yes,no}]
--enable-got=<type> GOT handling scheme (target, single, negative, --enable-got=<type> GOT handling scheme (target, single, negative,
multigot) multigot)
--enable-compressed-debug-sections compress debug sections by default
--enable-werror treat compile warnings as errors --enable-werror treat compile warnings as errors
--enable-build-warnings enable build-time compiler warnings --enable-build-warnings enable build-time compiler warnings
--disable-nls do not use Native Language Support --disable-nls do not use Native Language Support
@ -11713,7 +11715,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF cat > conftest.$ac_ext <<_LT_EOF
#line 11716 "configure" #line 11718 "configure"
#include "confdefs.h" #include "confdefs.h"
#if HAVE_DLFCN_H #if HAVE_DLFCN_H
@ -11819,7 +11821,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF cat > conftest.$ac_ext <<_LT_EOF
#line 11822 "configure" #line 11824 "configure"
#include "confdefs.h" #include "confdefs.h"
#if HAVE_DLFCN_H #if HAVE_DLFCN_H
@ -15521,6 +15523,19 @@ $as_echo "#define GOT_HANDLING_DEFAULT GOT_HANDLING_MULTIGOT" >>confdefs.h
*) as_fn_error "bad value ${got_handling} for --enable-got option" "$LINENO" 5 ;; *) as_fn_error "bad value ${got_handling} for --enable-got option" "$LINENO" 5 ;;
esac esac
# PR gas/19109
# Decide the default method for compressing debug sections.
ac_default_compressed_debug_sections=unset
# Provide a configure time option to override our default.
# Check whether --enable-compressed_debug_sections was given.
if test "${enable_compressed_debug_sections+set}" = set; then :
enableval=$enable_compressed_debug_sections; case "${enableval}" in
yes | all | ld) ac_default_compressed_debug_sections=yes ;;
no | none) ac_default_compressed_debug_sections=no ;;
*) ac_default_compressed_debug_sections=unset ;;
esac
fi
# Set the 'development' global. # Set the 'development' global.
. $srcdir/../bfd/development.sh . $srcdir/../bfd/development.sh
@ -17118,6 +17133,12 @@ do
fi fi
done done
if test x$ac_default_compressed_debug_sections == xyes ; then
$as_echo "#define DEFAULT_FLAG_COMPRESS_DEBUG 1" >>confdefs.h
fi

16
ld/configure.ac
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@ -143,6 +143,18 @@ case "${got_handling}" in
*) AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;; *) AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;;
esac esac
# PR gas/19109
# Decide the default method for compressing debug sections.
ac_default_compressed_debug_sections=unset
# Provide a configure time option to override our default.
AC_ARG_ENABLE(compressed_debug_sections,
[ --enable-compressed-debug-sections compress debug sections by default],
[case "${enableval}" in
yes | all | ld) ac_default_compressed_debug_sections=yes ;;
no | none) ac_default_compressed_debug_sections=no ;;
*) ac_default_compressed_debug_sections=unset ;;
esac])dnl
AM_BINUTILS_WARNINGS AM_BINUTILS_WARNINGS
AM_LC_MESSAGES AM_LC_MESSAGES
@ -372,6 +384,10 @@ do
fi fi
done done
if test x$ac_default_compressed_debug_sections == xyes ; then
AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
fi
AC_SUBST(elf_list_options) AC_SUBST(elf_list_options)
AC_SUBST(elf_shlib_list_options) AC_SUBST(elf_shlib_list_options)
AC_SUBST(elf_plt_unwind_list_options) AC_SUBST(elf_plt_unwind_list_options)

3
ld/ld.texinfo
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@ -2275,6 +2275,9 @@ sections and rename debug section names to begin with @samp{.zdebug}
instead of @samp{.debug}. @option{--compress-debug-sections=zlib} instead of @samp{.debug}. @option{--compress-debug-sections=zlib}
and @option{--compress-debug-sections=zlib-gabi} and @option{--compress-debug-sections=zlib-gabi}
compress DWARF debug sections with SHF_COMPRESSED from the ELF ABI. compress DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
The default behaviour varies depending upon the target involved and
the configure options used to build the toolchain. The default can be
determined by examing the output from the linker's @option{--help} option.
@kindex --reduce-memory-overheads @kindex --reduce-memory-overheads
@item --reduce-memory-overheads @item --reduce-memory-overheads

3
ld/ldmain.c
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@ -281,6 +281,9 @@ main (int argc, char **argv)
link_info.pei386_auto_import = -1; link_info.pei386_auto_import = -1;
link_info.spare_dynamic_tags = 5; link_info.spare_dynamic_tags = 5;
link_info.path_separator = ':'; link_info.path_separator = ':';
#ifdef DEFAULT_FLAG_COMPRESS_DEBUG
link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
#endif
ldfile_add_arch (""); ldfile_add_arch ("");
emulation = get_emulation (argc, argv); emulation = get_emulation (argc, argv);

7
ld/lexsup.c
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@ -1756,6 +1756,13 @@ elf_static_list_options (FILE *file)
fprintf (file, _("\ fprintf (file, _("\
--compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\ --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\
Compress DWARF debug sections using zlib\n")); Compress DWARF debug sections using zlib\n"));
#ifdef DEFAULT_FLAG_COMPRESS_DEBUG
fprintf (file, _("\
Default: zlib-gabi\n"));
#else
fprintf (file, _("\
Default: none\n"));
#endif
fprintf (file, _("\ fprintf (file, _("\
-z common-page-size=SIZE Set common page size to SIZE\n")); -z common-page-size=SIZE Set common page size to SIZE\n"));
fprintf (file, _("\ fprintf (file, _("\