Commit Graph

51 Commits

Author SHA1 Message Date
Jason Evans
ea8271a8bb Make setjmp, longjmp, sigsetjmp, and siglongjmp weak aliases for
__setjmp, __longjmp, __sigsetjmp, and __siglongjmp, respectively.
This supports cancellation in the linuxthreads port.  In the long run,
a much more comprehensive solution will necessitate more dramatic changes
to libc symbol naming, and these aliases will probably need modification
at that time.
1999-12-14 20:17:52 +00:00
Marcel Moolenaar
7023c66887 Remove osig* from NOASM. It bogus now. 1999-10-14 10:00:39 +00:00
Marcel Moolenaar
23cd96d8ce \begin{quote}
setjmp() gets the jmp_buf pointer from the wrong place (the place
where the return address is) in the shlib case, and uses it (only)
to fetch the current signal mask to address (return_address + 28).
This address is normally read-only (I hope), so the sigprocmask()
call has no effect except to return an error code.
\end{quote}

Submitted by: bde
1999-10-10 08:38:33 +00:00
Marcel Moolenaar
0cec71466c Remove syscall wrappers. 1999-10-09 15:27:09 +00:00
Marcel Moolenaar
3cf3c5d9dd sigset_t change (part 5 of 5)
-----------------------------

Most of the userland changes are in libc. For both the alpha
and the i386 setjmp has been changed to accomodate for the
new sigset_t. Internally, libc is mostly rewritten to use the
new syscalls. The exception is in compat-43/sigcompat.c

The POSIX thread library has also been rewritten to use the
new sigset_t. Except, that it currently only handles NSIG
signals instead of the maximum _SIG_MAXSIG. This should not
be a problem because current applications don't use any
signals higher than NSIG.

There are version bumps for the following libraries:
  libdialog
  libreadline
  libc
  libc_r
  libedit
  libftpio
  libss

These libraries either a) have one of the modified structures
visible in the interface, or b) use sigset_t internally and
may cause breakage if new binaries are used against libraries
that don't have the sigset_t change. This not an immediate
issue, but will be as soon as applications start using the
new range to its fullest.

NOTE: libncurses already had an version bump and has not been
      given one now.

NOTE: doscmd is a real casualty and has been disconnected for
      the moment. Reconnection will eventually happen after
      doscmd has been fixed. I'm aware that being the last one
      to touch it, I'm automaticly promoted to being maintainer.
      According to good taste this means that I will receive a
      badge which either will be glued or mechanically stapled,
      drilled or otherwise violently forced onto me :-)

NOTE: pcvt/vttest cannot be compiled with -traditional. The
      change cause sys/types to be included along the way which
      contains the const and volatile modifiers. I don't consider
      this a solution, but more a workaround.
1999-09-29 15:18:46 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Dmitrij Tejblum
1b30ac5124 Add wrappers for pread and pwrite syscalls. 1999-04-04 21:46:24 +00:00
Luoqi Chen
ae45749a50 Simplify implementation and eliminate a register preservation problem.
Reviewed by:	Bruce Evans <bde@zeta.org.au>
1998-09-18 05:50:52 +00:00
Luoqi Chen
02bc6ef2c8 Fix a cut 'n paste mistake. 1998-09-13 20:32:45 +00:00
Dmitrij Tejblum
deb9688ae1 In libc_r, rename vfork syscall to _thread_sys_vfork and make vfork an alias
to fork. It is difficult to do real vfork in libc_r, since almost every
operation with file descriptsor changes _thread_fd_table and friends.

popen(3) works much better with this change.
1998-09-12 22:03:20 +00:00
Bruce Evans
5b632b56e5 Fixed disordering in previous commit. 1998-07-29 13:43:06 +00:00
Jonathan Lemon
f88a03565a Add wrappers for i386_*_ioperm, i386_vm86 so userland code does
not have to call sysarch() directly.
Added man pages for above, as well as sysarch()
1998-07-28 03:33:27 +00:00
John Birrell
b2dd537249 Use the thread-aware errno definition all the time. 1998-05-05 22:07:02 +00:00
John Birrell
75831c5b8f Build the syscalls (in libc, not libc_r) with weak symbols so that
libpthread can override them as required.
1998-05-05 22:06:16 +00:00
John Birrell
9b7c9bc4f8 Oops, backout the previous change having confused my underscores.
__thread_create is a syscall that uses the default asm. It is
_thread_create that contains specific asm code, but that lives in
libpthread.
1998-04-30 10:02:44 +00:00
John Birrell
3fece7a1aa Make cerror thread aware by calling __error() to get a pointer to the
thread-specific error variable. This change make libc use the same cerror
code that libc_r has been using.
1998-04-30 09:32:48 +00:00
John Birrell
68f87034f2 The syscall that creates a kernel thread is coming, but it doesn't use the
default syscall asm, so add it to NOASM. The other syscalls that manipulate
kernel threads use the default asm code, so they just get built
automatically.
1998-04-30 09:30:50 +00:00
John Birrell
5178bcd1cf Stop renaming these in libc_r because wrappered versions don't make sense.
PR: i386/4826, bin/5953
1998-04-29 09:14:35 +00:00
John Birrell
0db2fac06a Nearly missed this one.
List non-default asm sources in MDASM so that they replace the defaults.

For funny or incomplete syscalls, list them in NOASM to stop them
from getting built as defaults.
1998-03-09 07:36:56 +00:00
Bruce Evans
1cbbb1ba4b Removed bogus .PATH statement. 1997-10-16 14:41:25 +00:00
Bruce Evans
da16ae8684 Removed the subdirectory paths from the definitions of MAN[1-9]. They
were a workaround for limitations in bsd.man.mk that were fixed about
2 years ago.
1997-10-16 14:26:13 +00:00
Bruce Evans
b2fad8ae7a Moved `SRCS+= frexp.c' to the correct Makefile.inc.
Sorted SRCS.
1997-10-14 07:43:33 +00:00
John Birrell
870039320f Changed all paths to be relative to src/lib instead of src/lib/libc
so that all these makefiles can be used to build libc_r too.

Added .if ${LIB} == "c" tests to restrict man page builds to libc
to avoid needlessly building them with libc_r too.

Split libc Makefile into Makefile and Makefile.inc to allow the
libc_r Makefile to include Makefile.inc too.
1997-05-03 03:50:06 +00:00
Bruce Evans
7df534462e Fixed long lines.
Removed unused macros CALL() and ASMSTR.

Reviewed by:	jdp
1997-04-19 17:05:30 +00:00
Peter Wemm
7e546392b5 Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
Bruce Evans
b416939d71 Moved definitions of PIC macros from SYS.h to DEFS.h so that SYS.h
doesn't need to be included in files that have nothing to do with
syscalls.

Added missing `.text' to START_ENTRY so that ENTRY() works when
invoked in the data section.
1997-02-14 10:57:07 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
John Dyson
c8318ed6c3 Correct a "spelling" error in a comment. 1996-10-31 17:50:45 +00:00
Julian Elischer
5eaf55414c Submitted by: john birell (jb@cimlogic.com.au)
fixups for makefiles
and for Thread-safe sycalls
1996-08-22 04:25:09 +00:00
Julian Elischer
0f7d684755 Submitted by: John Birrell <cimaxp1!jb@werple.net.au>
Here are the diffs for libc_r to get it one step closer to P1003.1c
These make most of the thread/mutex/condvar structures opaque to the
user. There are three functions which have been renamed with _np
suffixes because they are extensions to P1003.1c (I did them for JAVA,
which needs to suspend/resume threads and also start threads suspended).

I've created a new header (pthread_np.h) for the non-POSIX stuff.

The egrep tags stuff in /usr/src/lib/libc_r/Makefile that I uncommented
doesn't work. I think its best to delete it. I don't think libc_r needs
tags anyway, 'cause most of the source is in libc which does have tags.

also:

Here's the first batch of man pages for the thread functions.
The diff to /usr/src/lib/libc_r/Makefile removes some stuff that was
inherited from /usr/src/lib/libc/Makefile that should only be done with
libc.

also:

I should have sent this diff with the pthread(3) man page.
It allows people to type

make -DWANT_LIBC_R world

to get libc_r built with the rest of the world. I put this in the
pthread(3) man page.  The default is still not to build libc_r.


also:
The diff attached adds a pthread(3) man page to /usr/src/share/man/man3.
The idea is that without libc_r installed, this man page will give people
enough info to know that they have to build libc_r.
1996-08-20 08:22:01 +00:00
Jordan K. Hubbard
51295a4d3e General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>
1996-07-12 18:57:58 +00:00
Bruce Evans
95c715795a Fixed comparisons so that preposterously large (>= 0x80000000) brk values
aren't silently converted to minbrk.  This stops malloc(INT_MAX) from
dumping core.  Small values are still silently converted.  They should
be an error.  sbrk() doesn't do any range checking or conversions or
overflow checking.

Moved PIC_EPILOGUE invocation to a more natural place where it
obviously doesn't interfere with the comparison.
1996-06-25 18:54:42 +00:00
John Polstra
cbdc4399d2 Fix a bug caused by the collision of a local assembler label with another
use of the same label in a recently-introduced PIC_PROLOGUE.  This
should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
Peter Wemm
7f11212ef1 Fix a bogon in the pic + threadsafe version of cerror, it was missing
a PIC_EPILOGUE (leaving an extra long on the stack).

Submitted by: John Polstra <jdp@polstra.com>
1996-05-10 16:43:47 +00:00
Peter Wemm
f1703dfbaa Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__)
In a nutshell, this macroizes the local/global symbol scoping rules
that are different in a.out and ELF.  It also makes the i386 assembler
stubs conform to i386 PIC calling conventions - the a.out ld.so didn't
object, but the ELF one needs it as it implements PIC jumps via PLT's as
well as calls.  The a.out rtld only worked because it was accidently
snooping the grandparent calling function's return address off the stack..

This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
Peter Wemm
13295c7f99 Put in missing '_' in call to wrapper _thread_sys_sigsetmask() function. 1996-02-17 12:25:21 +00:00
Julian Elischer
f70177e76e Reviewed by: julian and (hsu?)
Submitted by:	 John Birrel(L?)

changes for threadsafe operations
1996-01-22 00:02:33 +00:00
Poul-Henning Kamp
fcce81cde3 remove GCC support functions from libc.
Should never have been here in the first place.
1995-10-05 10:24:57 +00:00
Poul-Henning Kamp
bf529a66d9 Calling sbrk(2) with zero argument doesn't need to generate a syscall.
Reviewed by:	bde
1995-10-04 15:58:57 +00:00
David Greenman
717d9cdd57 First round of changes to clean up the RCSID mess in libc:
1) Changed LIB_SCCS and SYSLIB_SCCS to LIB_RCS and SYSLIB_RCS.
2) Changed sccsid[] variables to rcsid[]
3) Moved all RCSID strings into .text
4) Converted all SCCSID's to RCS $Id$'s
5) Added missing $Id$'s after copyright.
1995-01-23 01:30:24 +00:00
Bruce Evans
08747772a2 sigsetjmp.S:
Remove unnecessary .text statement.
1994-12-27 13:34:04 +00:00
Bruce Evans
1fe9751525 Remove unnecessary .align statement. 1994-12-27 13:33:03 +00:00
Bruce Evans
1a4206dd85 Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets
to match setjmp.S.
1994-10-25 14:08:13 +00:00
Jordan K. Hubbard
2494a00b49 This is weird. I *added this*, but it went away again! Ummm.. Mumble.
I'm confused..
Submitted by:	jkh
1994-08-22 09:19:50 +00:00
Jordan K. Hubbard
11841a6877 Put __infinity back here again until someone does the right thing and
repartitions libc into something human again.  I don't have that kind of
time right now myself, unfortunately.
Submitted by:	jkh
1994-08-20 20:16:57 +00:00
David Greenman
c501fb74cf Fixed problem with returning -1 on error when the return value is a
long long. Done by plugging both eax and edx with -1. This will clobber
edx unnecessarily when the return value is only 32bit...though probably
always an okay thing to do, it could stand a better fix.
   This was the cause of gawk being broken (boy was THAT ever a subtle
bug!!!).
1994-08-13 14:00:26 +00:00
Garrett Wollman
2ceb2ce9ee First crack at making libc work with the new make macros. It compiles on
my machine, and a simple static (genassym) and shared (sysctl) executable
both work.  Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
Rodney W. Grimes
8e101982f3 Pull in GNU2 fix for this from FreeBSD, allows ldexp.c to compile with
gcc2.x
1994-05-27 11:00:56 +00:00
Rodney W. Grimes
58f0484fa2 BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00
Rodney W. Grimes
975da7e52b Add $Id$ to all, clean up multiple spaces 1994-02-21 05:19:06 +00:00