Commit Graph

47 Commits

Author SHA1 Message Date
deischen
ca55abf319 Clean up syscall generation in libc by removing HIDDEN_SYSCALLS
and treating (almost) all system calls the same way:

	__sys_foo - actual syscall
	foo, _foo - weak definitions to __sys_foo

Change PSEUDO syscalls (currently only _exit and _getlogin) to
be __sys_foo (T) and _foo (W).

Add $FreeBSD$ to a few files to satisfy commitprep.

Suggested by:	bde
2001-01-29 03:23:46 +00:00
deischen
56363d25db Comment only change; s/_thread_sys_/__sys_/ 2001-01-26 02:41:07 +00:00
deischen
1635c221b7 Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions.  If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
	__sys_foo - actual system call
	_foo - weak definition to __sys_foo
	foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo.  In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde).  All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes.  <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h  namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE.  We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by:	-arch
2001-01-24 13:01:12 +00:00
jake
cec123a65f Remove last vestiges of thr_sleep and thr_wakeup from libc. 2000-12-02 05:58:03 +00:00
jhb
bed81b37b6 Remove duplicate FreeBSD id tags. 2000-08-21 21:05:44 +00:00
peter
509e3bd402 Take a shot at implementing a functional rfork_thread() for alpha. This
was not fun and I am not entirely certain of the correctness, but it seems
to work.  (in fact, side by side testing of this code vs the x86 version
turned up hidden bugs in the x86 code).
2000-07-29 11:43:21 +00:00
jhb
13d30a3d17 Finish moving all IEEE fp types to be the same on all arch's. 2000-05-10 19:41:40 +00:00
obrien
a275067a35 Add FreeBSD Id tags. 2000-05-10 19:04:57 +00:00
obrien
4c9cbbd684 fp_except => fp_except_t for consistancy with the i386 and the tradition
C methoid of nameing types.
2000-05-10 19:00:45 +00:00
jasone
23c4215cb0 Take care to avoid having "strong" and "weak" symbols of the same name in
libc_r.
2000-03-16 02:14:41 +00:00
jasone
b7a1b427de Undo the ill-conceived breakage of the previous commit and really fix:
For libc_r renamed syscalls, correct symbol naming from
_thread_sys_foo() <-- _foo() to _thread_sys_foo() <-- _foo() <-- foo().  This
is necessary for system calls which libc_r doesn't define foo().

Some weak symbols such as poll() are defined twice.  From what I understand,
depending on one weak symbol or the other to be used is a bad idea.  All
such weak symbols defined in the libc_r-specific code should therefore be
made strong (non-weak?).

Simplify PSEUDO() to not define any weak symbols, since they aren't ever
needed.

alpha/SYS.h:

Correct reversed usage of WEAK_ALIAS(), which has reversed arguments from
__weak_reference().  Also, fix reversal of symbols, so that syscall foo()
is a weak alias for _foo().

Add WEAK_ALIAS() call to PRSYSCALL(), which unlike the i386 version of
PRSYSCALL(), is not defined in terms of PSYSCALL().

Make PSEUDO() equivalent to the i386 version.
2000-01-29 12:50:47 +00:00
jasone
d6a7c1c554 For syscalls that are renamed to _thread_sys_foo, create a weak alias
called _foo, not _thread_sys_foo.
2000-01-28 22:47:21 +00:00
jasone
8abe2a2d86 Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo().  In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate.  In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by:	deischen
2000-01-27 23:07:25 +00:00
jasone
303a1b5e43 Remove unnecessary alternate entry points for *setjmp(). Make the main
entry point the standard name when not compiling libc_r (for example,
longjmp is the main entry point instead of __longjmp).

Suggested by:	bde
2000-01-20 21:58:27 +00:00
jasone
2c6582da15 Make minor entry point changes to support libc_r. 2000-01-19 07:01:40 +00:00
bde
3c0d60caf9 Fixed corrupted tabs in previous commit. 2000-01-14 15:47:00 +00:00
jasone
226390d852 Fix unresolved _libc_*() references in libc by creating weak aliases
to the respective system call entry points.
2000-01-13 09:26:50 +00:00
jasone
75903038bc Add three-tier symbol naming in support of POSIX thread cancellation
points.  For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep().  The arrows represent weak aliases.  For
system calls, the pattern is _read() <-- _libc_read() <-- read().
2000-01-12 09:23:48 +00:00
jdp
3274954f70 In longjmp, call sigreturn instead of osigreturn. The latter isn't
visible from userland any more.

Reviewed by:	luoqi
1999-10-14 01:16:51 +00:00
marcel
70fb184d38 Not needed now the syscall matches the prototype. 1999-10-12 09:38:57 +00:00
dfr
457427e263 Remove old sig* wrappers. 1999-10-09 12:11:31 +00:00
jdp
4a4463eee1 Fix misspelling of the "addq" opcode. 1999-09-29 21:10:25 +00:00
marcel
5bf7ce284b 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
76f0c923fe $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
simokawa
22873f9717 Just return `curbrk' for sbrk(0) to avoid syscall overhead. 1999-06-26 15:22:33 +00:00
dfr
13a73c960d Declare the return address for __divX, __remX so that gdb can step over
calls properly.
1999-05-02 12:05:09 +00:00
dt
7d58f8f534 Add wrappers for pread and pwrite syscalls. 1999-04-04 21:46:24 +00:00
dfr
fc3a150520 Rename when building libc_r. 1999-03-25 18:43:17 +00:00
dfr
164a41ac4c [This is a null commit to supply the correct log entry]
Rename 'cerror' to '.cerror' so that programs which have a function or
global variable named 'cerror' don't completely break the syscall error
reporting mechanism.
1998-12-23 11:55:42 +00:00
dfr
0d57a81a8b Implement fpsetmask() and other fp*() functions. Programs should use
#include <ieeefp.h>

to access these functions instead of the i386 specific

	#include <machine/floatingpoint.h>

Submitted by: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
1998-12-23 11:50:52 +00:00
jb
fd263f3ca2 CALL -> PCALL for sigaltstack for libc_r. 1998-12-10 20:36:24 +00:00
dt
613a2bdfde 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
jb
542d7ab6fb Remove support for NetBSD syscalls. 1998-08-17 03:46:10 +00:00
jb
87c7d8300d Remove the comment about how to get NetBSD syscalls since there are
now programs built on alpha that _must_ use FreeBSD syscalls to work.
1998-08-17 03:35:09 +00:00
jb
f1b6bb19f5 If using FreeBSD syscalls, handle the syscalls that don't require
default asm code the same way as on i386.
1998-08-08 02:25:46 +00:00
jb
28e246e358 Include FreeBSD's syscall.h if not using NetBSD syscalls. 1998-08-08 02:24:03 +00:00
jb
931e9bbff0 Allow for the fact that NetBSD syscalls are no longer the default. Call
sigaltstack by default if using FreeBSD syscalls.
1998-08-08 02:20:24 +00:00
jb
559e45b44f Make NetBSD compatibility conditional on NETBSD_SYSCALLS being defined.
This is no longer the default.
1998-08-08 02:18:07 +00:00
jb
f5eb9db9bd References to NetBSD syscalls changed to just a comment about what to
add to /etc/make.conf to use FreeBSD's libc with a NetBSD/Alpha kernel.

From now on, FreeBSD/Alpha is just FreeBSD.
1998-08-08 02:14:45 +00:00
jb
44521e5a33 Remove __NETBSD_SYSCALLS from CFLAGS now that it is set in sys.mk. 1998-06-09 22:59:16 +00:00
jb
dd948fe380 Rename calls when building libc_r. 1998-06-09 22:57:34 +00:00
jb
14b9607019 Make this thread-safe in both libc as well as libc_r. 1998-06-09 22:56:24 +00:00
jb
2f5fa8684d Rename when building libc_r. 1998-06-09 22:45:39 +00:00
jb
47cdbd2757 Add rename support for libc_r. 1998-06-09 22:43:34 +00:00
jb
8c501829fc Remove a big hack after adding a small one to libc/gen/getcwd.c to
handle the lack of __getcwd syscall in NetBSD.
1998-05-15 12:01:06 +00:00
jb
0e724de2cf Oops, we don't need NetBSD's malloc 'cause we can turn off utrace
in phk's malloc.
1998-03-09 07:03:06 +00:00
jb
044863dc35 Import sources from NetBSD, tweaked for building in FreeBSD. 1998-03-09 06:34:43 +00:00