Commit Graph

169 Commits

Author SHA1 Message Date
David Schultz
92b93b37c0 Add __ldtoa(), a wrapper around gdtoa() to make it look like dtoa().
In support of this, add some MD macros to assist in converting long
doubles to the format expected by gdtoa().

Reviewed by:	silence on standards@
2003-04-05 22:10:13 +00:00
Tim J. Robbins
799d93559b MFp4: Pentium/Athlon-optimised implementation of wcschr(). 2003-04-05 04:17:05 +00:00
Daniel Eischen
67aba1c6a4 Align signal frame placed on stack to 16 bytes so that SSE FPU register
restores can work.  Also correct allocation for signal frame size.

Reviewed by:	mini
2003-03-29 16:38:15 +00:00
Tim J. Robbins
564529ff1a MFp4: Pentium/Athlon-optimised implementation of wcslen(). 2003-03-14 11:01:12 +00:00
David Schultz
6a66acb565 Replace our ancient dtoa/strtod implementation with the gdtoa
package, a more recent, generalized set of routines.  Among the
changes:
- Declare strtof() and strtold() in stdlib.h.
- Add glue to libc to support these routines for all kinds
  of ``long double''.
- Update printf() to reflect the fact that dtoa works slightly
  differently now.

As soon as I see that nothing has blown up, I will kill
src/lib/libc/stdlib/strtod.c.  Soon printf() will be able
to use the new routines to output long doubles without loss
of precision, but numerous bugs in the existing code must
be addressed first.

Reviewed by:	bde (briefly), mike (mentor), obrien
2003-03-12 20:30:00 +00:00
Tim J. Robbins
1609edca75 MFp4: Reduce code size by 26 bytes by only aligning the jump targets that
are at the top of loops.
2003-03-12 06:46:16 +00:00
Tim J. Robbins
34d4e9132c MFp4: Pentium/Athlon-optimised implementation of wmemchr(). 2003-03-12 03:55:01 +00:00
Tim J. Robbins
00d7d210f5 MFp4: Pentium-optimised implementation of wcscmp(). Performs significantly
better than the code generated by gcc in many cases.
2003-03-10 10:54:36 +00:00
Daniel Eischen
cd7be69206 Remove these from libc; they are now system calls.
Prompted by:	mini
2003-02-18 12:31:57 +00:00
Jonathan Mini
2129373618 Call the weak symbol for sigprocmask, so that it can be overridden. 2003-02-17 07:47:13 +00:00
Jacques Vidrine
e0554a531f Eliminate 61 warnings emitted at WARNS=2 (leaving 53 to go).
Only warnings that could be fixed without changing the generated object
code and without restructuring the source code have been handled.

Reviewed by:	/sbin/md5
2003-02-16 17:29:11 +00:00
Mike Barcroft
5d62092f94 o Implement C99 classification macros isfinite(), isinf(), isnan(),
isnormal().  The current isinf() and isnan() are perserved for
  binary compatibility with 5.0, but new programs will use the macros.
o Implement C99 comparison macros isgreater(), isgreaterequal(),
  isless(), islessequal(), islessgreater(), isunordered().

Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
2003-02-12 20:03:41 +00:00
Mike Barcroft
8cf5ed5125 Implement fpclassify():
o Add a MD header private to libc called _fpmath.h; this header
  contains bitfield layouts of MD floating-point types.
o Add a MI header private to libc called fpmath.h; this header
  contains bitfield layouts of MI floating-point types.
o Add private libc variables to lib/libc/$arch/gen/infinity.c for
  storing NaN values.
o Add __double_t and __float_t to <machine/_types.h>, and provide
  double_t and float_t typedefs in <math.h>.
o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF,
  HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to
  <math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via
  <machine/float.h>.
o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based
  on the size of its argument.  __fpclassifyl() is never called on
  alpha because (sizeof(long double) == sizeof(double)), which is good
  since __fpclassifyl() can't deal with such a small `long double'.

This was developed by David Schultz and myself with input from bde and
fenner.

PR:		23103
Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
		(significant portions)
Reviewed by:	bde, fenner (earlier versions)
2003-02-08 20:37:55 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Jens Schweikhardt
57bd0fc6e8 english(4) police. 2002-12-27 12:15:40 +00:00
Alexander Kabaev
e34402d357 Back out the -fpcc-struct-return fixes.
Approved by:	re (rwatson)
2002-12-22 06:41:09 +00:00
Tim J. Robbins
2226ce021a Import newer versions of div() and ldiv() from NetBSD which handle
the -fpcc-struct-return calling convention properly instead of
returning garbage. This may break backwards compatibility with some old
binaries that were compiled when -fno-pcc-struct-return was the default.
2002-12-21 05:11:39 +00:00
Ruslan Ermilov
2efeeba554 mdoc(7) police: "The .Fa argument.". 2002-12-19 09:40:28 +00:00
Ruslan Ermilov
5c564bae0a mdoc(7) police: Fixed abuses of the .Ar and .Em macros. 2002-12-18 13:33:04 +00:00
Ruslan Ermilov
1fae73b137 mdoc(7) police: "The .Fn function". 2002-12-18 12:45:11 +00:00
Ruslan Ermilov
a0ce78ec1d mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00
Ruslan Ermilov
c51d717f0c libc_r wasn't so tied to libc for 22 months. 2002-11-18 09:50:57 +00:00
Daniel Eischen
9ed358fddc Disconnect the userland get/set/swapcontext() functions from
libc.  I want to keep these in some version for the thread
library/ies, but don't know whether to have them repo-copied
to libc_r or renamed and kept in libc.

Change the name of an alpha macro that was changed with the
system call commit.
2002-11-16 06:39:11 +00:00
Archie Cobbs
83999f5a32 Re-apply the previously backed-out commit that fixes the problem where
HUGE_VAL is not properly aligned on some architectures. The previous
fix now works because the two versions of 'math.h' (include/math.h
and lib/msun/src/math.h) have since been merged into one.

PR:	bin/43544
2002-10-31 23:05:20 +00:00
Sam Leffler
5100bb69ac track gratuitous change to sys/i386/include/reg.h 2002-10-21 03:47:22 +00:00
Maxim Sobolev
f927dfabc9 Eliminate superfluous memory access in memcpy(3)/memmove(3).
Obtained from:	NetBSD
MFC after:	1 week
2002-10-15 09:50:07 +00:00
Jonathan Mini
dcf0aad852 Style cleanup:
- Sort local variable declarations.
- Protect a hand-formatted comment from indent(1).
- Use portable casts, even though this is machine-dependant code.
- Remove extraneous blank lines.
- Remove trailing newline.
- Use sigdelset(3), not SIGDELSET(9).

Requested by:	bde
2002-09-21 23:54:32 +00:00
Archie Cobbs
ae8a4b2f36 Revert previous commit to unbreak world until we figure out the
right way to do it.
2002-09-20 15:43:26 +00:00
Archie Cobbs
f5f1272284 Fix a problem with the definition of HUGE_VAL causing the gcc warning
"cast increases required alignment of target type" on some platforms.

Reviewed by:	bde
2002-09-19 19:47:27 +00:00
Bruce Evans
ff5250b3e7 Fixed editing error in previous commit (*blush*). 2002-09-17 19:43:53 +00:00
Bruce Evans
803e437fb0 Fixed unsorting of SRCS. 2002-09-17 14:33:23 +00:00
Jonathan Mini
7630ea31ed Use a weak symbol for signalcontext(). 2002-09-17 03:15:47 +00:00
Jonathan Mini
1d6e1c66b2 Add signalcontext(), which adds a signal frame to a ucontext_t. 2002-09-17 03:11:07 +00:00
Peter Wemm
66422f5b7a Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha
2002-09-17 01:49:00 +00:00
Jonathan Mini
f990583656 Save and restore FPU state properly in ucontext_t's.
Reviewed by:	deischen, julian
Approved by:	-arch
2002-09-16 19:24:31 +00:00
Robert Drehmel
b78411b153 Include <stdlib.h> to have abort() and exit() declared. 2002-08-15 11:58:24 +00:00
Alexander Kabaev
dc0f86a25d Use '_end' symbol instead of 'end' to initialize minbrk and curbrk
variables. Both symbols are set to the same value by the linker,
and _end symbol has less chances to clash with application defined
global symbols.

alpha, ia64 and sparc64 ports already use _end, i386 is now
consistent with them.

Reviewed by:	bde
Approved by:	obrien
Reported by:	pirzyk
2002-08-08 17:28:07 +00:00
Mike Silbersack
11289efd80 Fix style bugs I added in last commit.
Spotted by:	bde
2002-06-27 14:16:21 +00:00
Mike Silbersack
1228a1c634 Modify bcopy (and memcpy/memmove) so that the length value is not
re-read from the stack mid copy.  This may help mitigate the recent
Apache buffer overrun and future overruns of the sort.

Reviewed by:	jdp
MFC after:	2 days
2002-06-27 03:55:36 +00:00
Jens Schweikhardt
21dc7d4f57 Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by:	des
MFC after:	3 weeks
2002-06-02 20:05:59 +00:00
Jake Burkholder
530622075e Generate the normal asm stubs for all sysv system calls. Use these instead
of C wrappers for the *sys indirect system calls.  The indirect system calls
are horribly broken on sparc64.

Submitted by:	tmm
2002-05-23 23:51:57 +00:00
David E. O'Brien
c04447ba03 Standardize on our SCM ID style. 2002-03-23 02:44:19 +00:00
David E. O'Brien
0f4f02856d Restore CSRG ID's lost in January 1995. 2002-03-23 02:10:28 +00:00
David E. O'Brien
1114a754ed Fix the style of the SCM ID's.
I believe have made all of libc .h's as consistent as possible.
2002-03-22 23:42:05 +00:00
David E. O'Brien
333fc21e3c Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.
2002-03-22 21:53:29 +00:00
Peter Wemm
cc2dbb21e5 Move swapcontext.c to the ${MACHINE_ARCH}/gen/Makefile.inc area, otherwise
it causes undefined references to getcontext() and setcontext() on
platforms other than i386 and alpha.
2002-03-21 06:45:32 +00:00
Bill Fumerola
29ec623730 cosmetic: spell 'cashe' as 'cache' 2002-03-10 12:08:28 +00:00
Mike Barcroft
fd8e4ebc8c o Move NTOHL() and associated macros into <sys/param.h>. These are
deprecated in favor of the POSIX-defined lowercase variants.
o Change all occurrences of NTOHL() and associated marcros in the
  source tree to use the lowercase function variants.
o Add missing license bits to sparc64's <machine/endian.h>.
  Approved by: jake
o Clean up <machine/endian.h> files.
o Remove unused __uint16_swap_uint32() from i386's <machine/endian.h>.
o Remove prototypes for non-existent bswapXX() functions.
o Include <machine/endian.h> in <arpa/inet.h> to define the
  POSIX-required ntohl() family of functions.
o Do similar things to expose the ntohl() family in libstand, <netinet/in.h>,
  and <sys/param.h>.
o Prepend underscores to the ntohl() family to help deal with
  complexities associated with having MD (asm and inline) versions, and
  having to prevent exposure of these functions in other headers that
  happen to make use of endian-specific defines.
o Create weak aliases to the canonical function name to help deal with
  third-party software forgetting to include an appropriate header.
o Remove some now unneeded pollution from <sys/types.h>.
o Add missing <arpa/inet.h> includes in userland.

Tested on:	alpha, i386
Reviewed by:	bde, jake, tmm
2002-02-18 20:35:27 +00:00
Bruce Evans
b9c35b6942 Fixed unsorting and splitting of SRCS in previous commit. 2002-01-11 17:10:35 +00:00
Daniel Eischen
b66b8326e5 Add getcontext, setcontext, makecontext, and swapcontext. These
functions are defined in SUSv2 and the latest POSIX spec.

Thanks to Bernd Walter <ticso@cicely8.cicely.de> for helping debug my
alpha assembly.

Approved by:	-arch
2002-01-10 02:40:59 +00:00