Konstantin Belousov bd6060a1c6 Switch libc from using _sig{procmask,action,suspend} symbols, which ...

are aliases for the syscall stubs and are plt-interposed, to the
libc-private aliases of internally interposed sigprocmask() etc.

Since e.g. _sigaction is not interposed by libthr, calling signal()
removes thr_sighandler() from the handler slot etc.  The result was
breaking signal semantic and rtld locking.

The added __libc_sigprocmask and other symbols are hidden, they are
not exported and cannot be called through PLT.  The setjmp/longjmp
functions for x86 were changed to use direct calls, and since
PIC_PROLOGUE only needed for functional PLT indirection on i386, it is
removed as well.

The PowerPC bug of calling the syscall directly in the setjmp/longjmp
implementation is kept as is.

Reported by:	Pete French <petefrench@ingresso.co.uk>
Tested by:	Michiel Boland <boland37@xs4all.nl>
Reviewed by:	jilles (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

2015-08-29 14:25:01 +00:00

..

_flock_stub.c

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asprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

clrerr.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

dprintf.c

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fclose.3

Add fdclose(3) function.

2015-07-04 16:42:14 +00:00

fclose.c

Add fdclose(3) function.

2015-07-04 16:42:14 +00:00

fcloseall.c

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fdopen.c

libc/stdio: Fail fdopen() on an execute-only fd.

2014-04-21 17:40:23 +00:00

feof.c

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2013-04-23 13:33:13 +00:00

ferror.3

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ferror.c

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2013-04-23 13:33:13 +00:00

fflush.3

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fflush.c

In r268924 __fflush was modified so that when write(2) was not successful,

2014-12-10 08:18:22 +00:00

fgetc.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fgetln.3

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fgetln.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

fgetpos.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

fgets.3

Remove reference to non-existent FreeBSD Security Architecture

2012-05-09 17:27:49 +00:00

fgets.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fgetwc.c

Previously, vfscanf()'s wide character processing functions were

2012-04-29 16:28:39 +00:00

fgetwln.3

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fgetwln.c

…

fgetws.3

…

fgetws.c

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fileno.c

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2013-04-23 13:33:13 +00:00

findfp.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

flags.c

Support file verification in MAC.

2015-04-22 01:54:25 +00:00

floatio.h

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flockfile.3

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fmemopen.c

- Return NULL and set errno to EINVAL if size is 0 (as required by POSIX).

2014-06-02 13:48:57 +00:00

fopen.3

- Return NULL and set errno to EINVAL if size is 0 (as required by POSIX).

2014-06-02 13:48:57 +00:00

fopen.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

fpurge.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fputc.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fputs.3

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fputs.c

Mostly cosmetic cleanups.

2014-07-22 16:39:11 +00:00

fputwc.c

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fputws.3

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fputws.c

Avoid possible cast degradation.

2014-07-22 23:29:54 +00:00

fread.3

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fread.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

freopen.c

In the "Too many open files" edge cases don't try to preserve old

2014-07-26 08:41:03 +00:00

fscanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

fseek.3

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fseek.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fsetpos.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

ftell.c

For "a"-mode files and rewind/fseek + fwrite combination return meaningful

2014-07-22 22:49:37 +00:00

funopen.3

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funopen.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

fvwrite.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fvwrite.h

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fwalk.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

fwide.3

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fwide.c

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fwprintf.c

…

fwrite.c

Typo corrected.

2013-07-12 17:37:05 +00:00

fwscanf.c

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getc.3

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getc.c

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2013-04-23 13:33:13 +00:00

getchar.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

getdelim.c

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getline.3

Fix the example: free the memory that was allocated by getline().

2014-07-31 08:28:42 +00:00

getline.c

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gets.c

Const-ify a character string.

2014-07-20 20:29:28 +00:00

getw.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

getwc.3

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getwc.c

…

getwchar.c

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glue.h

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local.h

Previously, vfscanf()'s wide character processing functions were

2012-04-29 16:28:39 +00:00

makebuf.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

Makefile.inc

Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}

2014-03-04 02:19:39 +00:00

mktemp.3

Add mkostemp() and mkostemps().

2013-08-09 17:24:23 +00:00

mktemp.c

Add mkostemp() and mkostemps().

2013-08-09 17:24:23 +00:00

open_memstream.3

Fix a couple of markup typos.

2015-08-02 02:00:20 +00:00

open_memstream.c

Reassign copyright statements on several files from Advanced

2015-04-23 14:22:20 +00:00

open_wmemstream.c

Reassign copyright statements on several files from Advanced

2015-04-23 14:22:20 +00:00

perror.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

printf_l.3

Add missing include files for the printf_l and scanf_l man pages.

2013-11-17 02:03:45 +00:00

printf-pos.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

printf.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

printf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

printfcommon.h

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printflocal.h

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putc.3

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putc.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

putchar.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

puts.c

Mostly cosmetic cleanups.

2014-07-22 16:39:11 +00:00

putw.c

Avoid possible cast degradation.

2014-07-22 23:29:54 +00:00

putwc.3

…

putwc.c

…

putwchar.c

…

refill.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

remove.3

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remove.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

rewind.c

rewind: always clear error indicator.

2014-07-22 16:10:56 +00:00

rget.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

scanf_l.3

Add missing include files for the printf_l and scanf_l man pages.

2013-11-17 02:03:45 +00:00

scanf.3

Minor mdoc nits.

2012-05-12 20:27:13 +00:00

scanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

setbuf.3

setbuf(3): Restore a BUGS section about setbuf().

2013-02-18 22:47:59 +00:00

setbuf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

setbuffer.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

setvbuf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

snprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

sprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

sscanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

stdio.3

…

stdio.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

swprintf.c

…

swscanf.c

…

Symbol.map

Add fdclose(3) function.

2015-07-04 16:42:14 +00:00

tempnam.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

tmpfile.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

tmpnam.3

libc man pages: Remove reference to non-existent FreeBSD Security

2014-03-07 15:35:54 +00:00

tmpnam.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

ungetc.3

…

ungetc.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

ungetwc.3

…

ungetwc.c

…

vasprintf.c

…

vdprintf.c

…

vfprintf.c

Adjust errno on failed prepwrite.

2014-07-20 21:24:29 +00:00

vfscanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vfwprintf.c

Adjust errno on failed prepwrite.

2014-07-20 21:24:29 +00:00

vfwscanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vscanf.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

vsnprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vsprintf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vsscanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vswprintf.c

If the size passed to {,v}s{w,n}printf is larger than INT_MAX+1

2012-04-21 06:10:18 +00:00

vswscanf.c

Renumber clauses to reduce diffs to other versions

2013-04-23 13:33:13 +00:00

vwprintf.c

…

vwscanf.c

…

wbuf.c

Adjust errno on failed prepwrite.

2014-07-20 21:24:29 +00:00

wprintf.3

…

wprintf.c

…

wscanf.3

Minor mdoc nits.

2012-05-12 20:27:13 +00:00

wscanf.c

…

wsetup.c

Convert libc/stdio from K&R to ANSI C

2013-04-23 14:36:44 +00:00

xprintf_errno.c

libc: Always use our own copy of sys_errlist and sys_nerr (.so only).

2013-08-31 22:32:42 +00:00

xprintf_float.c

libc: clean some set-but-not-used errors.

2015-02-18 03:33:17 +00:00

xprintf_hexdump.c

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xprintf_int.c

…

xprintf_quote.c

…

xprintf_str.c

…

xprintf_time.c

…

xprintf_vis.c

…

xprintf.c

The register_printf_render_std() function expects regular string.

2012-07-04 17:35:07 +00:00