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227 Commits

Author SHA1 Message Date
Maciej W. Rozycki
95e7cf295e Fix static-binary lazy FPU context allocation 
Long ago static startup did not parse the auxiliary vector and therefore
could not get at any `AT_FPUCW' tag to check whether upon FPU context
allocation the kernel would use a FPU control word setting different to
that provided by the `__fpu_control' variable.  Static startup therefore
always initialized the FPU control word, forcing immediate FPU context
allocation even for binaries that otherwise never used the FPU.

As from GIT commit f8f900ecb9096ec47f5b7bb7626e29223c69061a static
startup supports parsing the auxiliary vector, so now it can avoid
explicit initialization of the FPU control word, just as can dynamic
startup, in the usual case where the setting written to the FPU control
word would be the same as the kernel uses.  This defers FPU context
allocation until the binary itself actually pokes at the FPU.

Note that the `AT_FPUCW' tag is usually absent from the auxiliary vector
in which case _FPU_DEFAULT is assumed to be the kernel default.
 2013-09-09 22:36:57 +01:00
Ondřej Bílka
f24a6d086b Fix then/than typos. 2013-08-30 18:10:31 +02:00
Ondřej Bílka
c0c3f78afb Fix typos. 2013-08-21 19:48:48 +02:00
Maciej W. Rozycki
ae9552cf7b Declare __ehdr_start with hidden visibility. 
This avoids a linker bug triggering for MIPS SVR4 binaries:

http://sourceware.org/bugzilla/show_bug.cgi?id=15365

and regardless serves as a documentation of intent.
 2013-04-25 16:14:49 +01:00
Roland McGrath
288f7d79fe Use __ehdr_start, if available, as fallback for AT_PHDR. 2013-03-28 16:15:48 -07:00
Roland McGrath
dc0a026385 Make _dl_phdr pointer to const. 2013-03-28 15:39:32 -07:00
Roland McGrath
3d3436ae68 Consolidate declarations of _dl_phdr, _dl_phnum. 2013-03-28 15:33:57 -07:00
Roland McGrath
9967e003b3 Add sysdeps/init_array to produce empty crt[in].o and use .preinit_array for gcrt1.o 2013-03-12 12:50:13 -07:00
Carlos O'Donell
4e9b599577 Revert GLIBC_PTHREAD_DEFAULT_STACKSIZE changes. 
This reverts the change that allows the POSIX Thread default stack size
to be changed by the environment variable
GLIBC_PTHREAD_DEFAULT_STACKSIZE. It has been requested that more
discussion happen before this change goes into 2.18.
 2013-03-01 16:18:08 -05:00
Siddhesh Poyarekar
e23872c8db Set default stack size from program environment 
New environment variable GLIBC_PTHREAD_DEFAULT_STACKSIZE to do this.
 2013-03-01 14:15:39 +05:30
Roland McGrath
85bd816a60 Add license exception text to gmon-start. 2013-02-27 14:59:25 -08:00
Joseph Myers
daaa7713e9 Remove bounded-pointers build system support. 2013-02-15 15:07:54 +00:00
Joseph Myers
e97ed6ddbe Remove bp-sym.h and BP_SYM uses from C code. 2013-02-14 13:12:02 +00:00
Joseph Myers
70d9946a44 Remove __ptrvalue, __bounded and __unbounded. 2013-02-13 23:30:40 +00:00
Roland McGrath
f1d70dad53 Remove lots of inline keywords. 2013-02-07 14:44:18 -08:00
Joseph Myers
3a7ac8a0f5 Remove bp-start.h and INIT_ARGV_and_ENVIRON. 2013-02-01 00:06:18 +00:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
David S. Miller
0549fbba96 Update copyright years. 
* catgets/gencat.c: Update copyright year.
	* csu/version.c: Likewise.
	* debug/catchsegv.sh: Likewise.
	* debug/pcprofiledump.c: Likewise.
	* debug/xtrace.sh: Likewise.
	* elf/ldconfig.c: Likewise.
	* elf/ldd.bash.in: Likewise.
	* elf/pldd.c: Likewise.
	* elf/sotruss.ksh: Likewise.
	* elf/sprof.c: Likewise.
	* iconv/iconv_prog.c: Likewise.
	* iconv/iconvconfig.c: Likewise.
	* locale/programs/locale.c: Likewise.
	* locale/programs/localedef.c: Likewise.
	* login/programs/pt_chown.c: Likewise.
	* malloc/memusage.sh: Likewise.
	* malloc/memusagestat.c: Likewise.
	* malloc/mtrace.pl: Likewise.
	* nscd/nscd.c: Likewise.
	* nss/getent.c: Likewise.
	* nss/makedb.c: Likewise.
	* posix/getconf.c: Likewise.
 2013-01-01 00:11:43 -08:00
Joseph Myers
8b748aed2a Support --with-pkgversion and --with-bugurl. 2012-11-09 22:13:45 +00:00
Thomas Schwinge
e10bb1072c [BZ #5246] Conditionalize use of PTR_DEMANGLE. 2012-11-04 21:46:30 +01:00
Roland McGrath
93c65d4384 Clean up init-first.c files. 2012-10-01 12:55:34 -07:00
H.J. Lu
b1dc5912f8 Update copyright years in csu/libc-tls.c 2012-09-11 06:27:51 -07:00
H.J. Lu
b80af2f406 Remove _dl_initial_dtv 
* csu/libc-tls.c (static_dtv): Renamed to ...
	(_dl_static_dtv): This.  Make it global.
	(_dl_initial_dtv): Removed.
	(__libc_setup_tls): Updated.
	* elf/dl-tls.c (DL_INITIAL_DTV): New macro.
	(_dl_deallocate_tls): Replace GL(dl_initial_dtv) with
	DL_INITIAL_DTV.
 2012-09-06 16:03:32 -07:00
H.J. Lu
0948c3af9d Always check dtv before freeing dtv[-1] 2012-09-06 11:51:52 -07:00
Roland McGrath
35a5b08bd4 Fix libc-start change for IRELless machines. 2012-08-22 12:53:38 -07:00
Roland McGrath
21ad055803 Support static IFUNC calls irrespective of USE_MULTIARCH. 2012-08-21 15:01:27 -07:00
Andreas Jaeger
9eae47cb5b Delete unused csu/.gitignore 2012-05-19 11:35:20 +02:00
Thomas Schwinge
228c019e63 Call __ctype_init in early glibc startup. 
This adds the bits missing from fd5bdc0924e0cfd1688b632068c1b26f3b0c88da.
 2012-04-02 22:26:43 +02:00
Ulrich Drepper
a4300c7a4d Remove distribute variable from Makefiles 2012-03-07 05:17:13 -05:00
Joseph Myers
0e7dfaef51 Remove old initfini mechanism. 2012-02-21 00:46:01 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Andreas Schwab
26ecc33a02 Remove have-initfini and need-nopic-initfini 2012-02-08 20:31:55 +01:00
Joseph Myers
3add8e1353 Support crti.S and crtn.S provided directly by architectures. 2012-02-08 01:45:26 +00:00
Ulrich Drepper
a0da5fe1e4 More fallout from supporting only ELF 2012-01-08 00:45:01 -05:00
Ulrich Drepper
0269750ca6 Remove non-ELF support 2012-01-07 20:30:26 -05:00
Ulrich Drepper
81fb02b046 Update copyright year 2012-01-01 05:50:05 -05:00
Ulrich Drepper
d063d16433 Remove support for !USE___THREAD 2011-09-10 16:50:28 -04:00
Ulrich Drepper
3ce1f29594 Cleanup of configuration options 
Make several tool features mandatory and simplify the code.
 2011-09-10 14:34:15 -04:00
Roland McGrath
23bee3e867 Comment typo fix. 2011-07-10 14:58:51 -07:00
Ulrich Drepper
c0dafcf176 Update copyright year. 2011-01-17 15:08:10 -05:00
Ulrich Drepper
9e37946dba Fix retrieving of kernel header version. 2010-04-04 01:02:09 -07:00
Richard Henderson
b1c1949e60 Don't take the address of a void object. 
GCC 4.5 warns about "extern void _end; &end;".
Use char[] instead, as that also doesn't fall foul
of a target's .sdata optimizations.

Signed-off-by: Richard Henderson <rth@twiddle.net>
 2010-03-26 09:16:21 -07:00
Ulrich Drepper
92ad15a8f1 Implement handling of libc ABI in ELF header. 2010-03-15 11:44:58 -07:00
Ulrich Drepper
1c3c269b55 Fix startup to security-relevant statically linked binaries. 
Before the change they crash on startup.  Perform IREL relocations
earlier to prevent this.
 2009-11-24 11:17:06 -08:00
Andreas Schwab
4bb04b1fb6 Fix USE_MULTIARCH conditional 2009-10-13 16:12:47 +02:00
Ulrich Drepper
9655389317 Fix bookkeeping of static TLS block for TLS_TCB_AT_TP architectures. 2009-07-28 21:58:32 -07:00
Ulrich Drepper
443caceb35 Fix build problems with old binutils. 
Old binutils don't provide IFUNC and don't generate the section start/end
symbols we expect.  At least for now only add the initializer code for
static IFUNC relocations if multi-arch support is requested.
 2009-06-05 09:42:32 -07:00
Ulrich Drepper
7441470835 Finish IFUNC support for x86 and x86-64. 
Add support for the IRELAIVE relocation and IFUNC in static executables.
 2009-05-31 23:45:33 -07:00
Jim Meyering
edeabc047e remove subsumed .gitignore entries and files 2009-05-16 10:41:40 +02:00
Jim Meyering
bb87237534 remove COPYING* from .gitignore files 2009-05-16 10:38:53 +02:00