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cd6ae7ea54
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Fangrui Song cd6ae7ea54 Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 
So that text_set_element/data_set_element/bss_set_element defined
variables will be retained by the linker.

Note: 'used' and 'retain' are orthogonal: 'used' makes sure the variable
will not be optimized out; 'retain' prevents section garbage collection
if the linker support SHF_GNU_RETAIN.

GNU ld 2.37 and LLD 13 will support -z start-stop-gc which allow C
identifier name sections to be GCed even if there are live
__start_/__stop_ references.

Without the change, there are some static linking problems, e.g.
_IO_cleanup (libio/genops.c) may be discarded by ld --gc-sections, so
stdout is not flushed on exit.

Note: GCC may warning 'retain' attribute ignored while __has_attribute(retain)
is 1 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99587).

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2021-04-16 11:26:39 -07:00
..
bits Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__fbufsize.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__flbf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__fpending.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__fpurge.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__freadable.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__freading.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__fsetlocking.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__fwritable.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__fwriting.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bug-fopena+.c
bug-fseek.c
bug-ftell.c
bug-memstream1.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
bug-mmap-fflush.c
bug-rewind2.c Fix warnings in fwscanf / rewind tests. 2014-11-26 12:54:39 +00:00
bug-rewind.c Fix warnings in fwscanf / rewind tests. 2014-11-26 12:54:39 +00:00
bug-ungetc2.c
bug-ungetc3.c
bug-ungetc4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bug-ungetc.c
bug-ungetwc1.c Fix libio/bug-ungetwc1.c warning. 2014-11-27 16:01:04 +00:00
bug-ungetwc2.c
bug-wfflush.c
bug-wmemstream1.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
bug-wsetpos.c
clearerr_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
clearerr.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Depend
fcloseall.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
feof_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
feof.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ferror_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ferror.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
filedoalloc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fileno.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fileops.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fmemopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fputc_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fputc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fputwc_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fputwc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
freopen64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
freopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fseek.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fseeko64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fseeko.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ftello64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ftello.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fwide.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fwprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fwscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
genops.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getc_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getchar_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getchar.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getwc_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getwc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getwchar_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getwchar.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofclose.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofdopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofflush_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofflush.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofgetpos64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofgetpos.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofgets_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofgets.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofgetws_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofgetws.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofopen64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofopncook.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofputs_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofputs.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofputws_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofputws.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofread_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofsetpos64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofsetpos.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ioftell.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofwide.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofwrite_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iofwrite.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iogetdelim.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iogetline.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iogets.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iogetwline.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iolibio.h libio: Eliminate _IO_stdin, _IO_stdout, _IO_stderr 2019-02-18 16:37:00 +01:00
iopadn.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iopopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ioputs.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ioseekoff.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ioseekpos.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iosetbuffer.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iosetvbuf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ioungetc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ioungetwc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iovdprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iovsprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iovsscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iovswscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
iowpadn.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
libc_fatal.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
libio.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
libioP.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
memstream.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
obprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldfileops.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldfmemopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofclose.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofdopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofgetpos64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofgetpos.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofsetpos64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiofsetpos.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldiopopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldpclose.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldstdfiles.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
oldtmpfile.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
pclose.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
peekc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putc_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putchar_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putchar.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putwc_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putwc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putwchar_u.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
putwchar.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rewind.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setbuf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setlinebuf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stdfiles.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stdio.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stdio.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strfile.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strops.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
swprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
swscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
test-fmemopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
test-freopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
test-freopen.sh Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst_getwc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst_getwc.input
tst_putwc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst_swprintf.c
tst_swscanf.c
tst_wprintf2.c Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
tst_wprintf.c
tst_wscanf.c
tst_wscanf.input
tst-atime.c Don't reduce test timeout to less than default 2018-10-17 09:34:13 +02:00
tst-bz22415.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-bz24051.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-bz24153.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-bz24228.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-bz24228.map libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 2019-06-20 17:32:07 +00:00
tst-cleanup-default-static.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup-default.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup-nostart-stop-gc-static.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup-nostart-stop-gc.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup-start-stop-gc-static.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup-start-stop-gc.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup.c Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-cleanup.exp Set the retain attribute on _elf_set_element if CC supports [BZ #27492] 2021-04-16 11:26:39 -07:00
tst-eof.c
tst-ext2.c
tst-ext.c
tst-fgetc-after-eof.c [BZ 1190] Make EOF sticky in stdio. 2018-03-13 08:31:56 -04:00
tst-fgetwc.c
tst-fgetwc.input
tst-fgetws.c
tst-fopenloc2.c
tst-fopenloc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-fputws.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-freopen.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-fseek.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-ftell-active-handler.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-ftell-append.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-ftell-partial-wide.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-fwrite-error.c libio: Update license on test case 2021-03-30 19:23:09 +05:30
tst-memstream1.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-memstream2.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-memstream3.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-memstream4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-memstream.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-mmap2-eofsync.c 2016-06-11 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-11 14:50:16 -07:00
tst-mmap-eofsync.c Remove miscellaneous debris from libio. 2018-02-21 14:39:54 -05:00
tst-mmap-fflushsync.c
tst-mmap-offend.c
tst-mmap-setvbuf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-popen1.c
tst-setvbuf1.c
tst-sprintf-chk-ub.c Set behavior of sprintf-like functions with overlapping source and destination 2019-01-02 13:53:52 -02:00
tst-sprintf-ub.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-sscanf.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-swscanf.c
tst-ungetwc1.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-ungetwc2.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-vtables-common.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-vtables-interposed.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-vtables.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-wfile-sync.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-wfile-sync.input Fix crash in _IO_wfile_sync (bug 20568) 2019-05-15 16:47:09 +02:00
tst-widetext.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-widetext.input Finish change from “Bengali” to “Bangla” 2017-09-09 12:41:54 +02:00
tst-wmemstream1.c
tst-wmemstream2.c
tst-wmemstream3.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-wmemstream4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
vasprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Versions libio: Remove __libc_readline_unlocked 2020-07-21 07:34:50 +02:00
vscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
vsnprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
vswprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
vtables.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
vwprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
vwscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wfiledoalloc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wfileops.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wgenops.c Correct buffer end pointer in IO_wdefault_doallocate (BZ #26874) 2021-03-01 19:34:49 +05:30
wmemstream.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wprintf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wscanf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wstrops.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00