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254 Commits

Author SHA1 Message Date
matt
44e25a6200 Add __syscall.S back to sys/Makefile.inc. Remove from arch/i386/gen/ 
Makefile.inc.  If your architecture doesn't have __syscall.S, *add it*.
 2000-12-13 07:42:47 +00:00
matt
9a6a3ec1b5 Add __syscall.S to arch/i386/gen/Makefile.inc along with all the other 
sys .S files.  Remove from arch/i386/Makefile.inc since it doesn't belong
there.
 2000-12-13 07:14:43 +00:00
enami
44db4d16cc KMSRCS is different from SRCS. Put __syscall.S in latter. 2000-12-13 07:05:55 +00:00
simonb
0e35eedd7e Move __syscall.S to the arch specific Makefile.inc's where it is 
implemented.
 2000-12-12 22:38:42 +00:00
mycroft
731305d114 Handle __syscall() in user-level code for i386. 2000-12-10 21:27:37 +00:00
mycroft
10bfc7b1b3 Use the SYSTRAP() macro more uniformly. 2000-12-08 22:57:57 +00:00
kleink
82fd76bb06 Need an internal name for pipe(2). 2000-09-28 08:38:53 +00:00
msaitoh
f9b799b651 check LIBC_SCCS 2000-09-13 22:32:25 +00:00
ad
136f4e3b32 %edx is free; use it instead of %ebx. 2000-08-07 14:46:52 +00:00
itohy
af83a97717 Add special treatment of shmat(2). 
On m68k ELF calling standard (__SVR4_ABI__), if a function
returns a pointer, the return value should go to a0 as well as d0.
 2000-07-07 08:20:50 +00:00
kleink
b8a4d7adf9 Need an internal name for fork(). 2000-06-26 06:32:54 +00:00
kleink
15bc7ed349 Thinko in previous: we do always use an internal name. 2000-06-26 06:25:36 +00:00
kleink
03f996bd0c Add internal names for brk() and sbrk(). 2000-06-23 15:40:36 +00:00
mycroft
fedba1d813 Clean up. 2000-04-03 04:20:44 +00:00
mycroft
72e604e414 Clean up. 
* _REENTRANT is always defined.
* The vfork() stubs can use cerror.
 2000-04-03 04:13:36 +00:00
mycroft
7f7027bb59 Repair syscall stubs that were not updated when the cerror interface was 
modified.
 2000-04-03 03:13:07 +00:00
kleink
e4d7c2e329 Add ISO C99 long long integer general utility interfaces; partially addresses 
PR standards/9482.
 2000-03-06 18:32:22 +00:00
mycroft
d018facbbf A better fix for the stub-in-other-module problem: 
Load the address of cerror through the GOT, so we can do a PIC_EPILOGUE and
leave the stack clean.
 2000-02-19 21:04:58 +00:00
mycroft
5888ab27bd Make cerror() work correctly for stubs in other shlibs -- e.g. libposix. 2000-01-23 23:38:32 +00:00
mycroft
c26054b799 Delint. 2000-01-22 22:40:58 +00:00
kleink
11e6c54cfc C99: Define a NAN macro in <math.h> which evaulates to a constant expression of 
a single-precision quiet NaN; only to be defined on platforms that do support
this value.
 1999-12-23 10:15:05 +00:00
kleink
30ae96c534 Oops, missed these in the mcount -> __mcount renaming. 1999-09-28 08:27:08 +00:00
drochner
ec2a7d4249 SYS.h was nuked from libkern 1999-09-10 15:41:51 +00:00
mycroft
ea4b733810 Trivial KNF. 1999-08-29 18:39:35 +00:00
mycroft
099dd01a1d Make the C version of frexp() consitent across platforms, and handle the 
Inf/NaN case.
 1999-08-29 18:30:14 +00:00
mycroft
17030e8106 Separate isnan() into a separate module, and make isinf()/isnan() use ieee.h. 1999-08-29 18:08:27 +00:00
thorpej
30dca7f7db Add __msgctl13(), __semctl13(), and __shmctl13() (symbols are __RENAME()'d 
in their respective header files).  Add PSEUDO stubs for the old versions
of these system calls.

Note that __semctl13() doesn't require the extra stub that the old
semctl()/__semctl() did, as the SUSv2 version takes variable arguments,
and thus does not require the extra indirection.
 1999-08-25 05:09:27 +00:00
kleink
74511f97b1 Use _ALIGN_TEXT from <machine/asm.h>. 1999-08-23 08:45:09 +00:00
mycroft
2b504929fa Just some minor cleanup. 1999-03-10 08:15:43 +00:00
mycroft
f1c544b6a8 Use ieee.h structs and macros. 1999-03-10 08:14:44 +00:00
christos
ae6215337e Don't use 1: label; it is uses by the PIC_PROLOGUE macro and we jmp in the 
wrong place!
 1999-02-22 13:07:14 +00:00
christos
af1c8fd11a For don't mess up the stack before calling syscall when using PIC_PROLOGUE. 1999-02-13 16:13:48 +00:00
christos
e387e174fc Amend for the PLT fixes, things broke last night with the changes to SYS.h 
and cerror.S. In particular, the syscalls in the files committed below were
broken.
 1999-02-08 18:56:48 +00:00
christos
143dcdbe44 Make cerror an entry and compensate for the PIC_PROLOGUE change in SYS.h 1999-02-07 17:22:25 +00:00
christos
cb41675175 Add PIC_PROLOGUE before the PLT call to cerror. ELF dynamic linking needs 
this.
 1999-02-07 17:21:38 +00:00
bouyer
dc306354b0 Move the bswap functions from libutil to libc (this bups the 
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.
 1999-01-15 13:31:15 +00:00
kleink
6348b7d5b5 * On architectures using ELF, and conditionally on those in transition, rename 
_ASM_LABEL(cerror) and _ASM_LABEL(curbrk) to _C_LABEL(__cerror) and
_C_LABEL(__curbrk) (or their respective architecture-specific equivalents) to
avoid possible name clashes with identifiers used in user applications.
* Do the same for minbrk on all architectures to avoid a GCC-specific (and
on ELF architectures effectively useless) symbol reference renaming in MI code.
 1999-01-14 22:48:18 +00:00
thorpej
efd37a7da8 Warn about references to the compatibility vfork() (i.e. the vfork() with 
the 4.4BSD non-shared-address-space semantics), and direct the user to
include <unistd.h> to generate the correct reference.

This warning isn't about an ABI compatibility issue, but the new vfork() is
considerably faster.
 1998-12-02 19:29:56 +00:00
thorpej
e644246e6a Warn about references to the compatibility() sigaction(), sigpending(), 
sigprocmask(), sigreturn(), and sigsuspend(), and direct the user to
include <signal.h> to generate the correct reference.
 1998-12-02 01:01:03 +00:00
christos
7c990e0c7b delint 1998-11-14 19:31:01 +00:00
kleink
d541ca6d80 Need internal names for isinf() and isnan(). 1998-10-13 14:43:36 +00:00
kleink
b5fe349eff Add *__errno() redirection for _REENTRANT code. 1998-10-01 19:25:05 +00:00
kleink
d8d9d85d13 (Fortunately harmless) typo in previous. 1998-10-01 19:20:44 +00:00
kleink
f73ad7167d Add *__errno() redirection for _REENTRANT code. 1998-10-01 09:26:31 +00:00
christos
2e3d142a37 Add a compat sigaction. 1998-09-26 23:57:15 +00:00
christos
6bacaab8be Fix signal mess. Change old syscalls to use the right signal numbers 
and add a versioned copy of sigreturn (from Jason)
 1998-09-26 23:49:34 +00:00
christos
ccf1e97b10 Add setjmp versioned bits (from Jason). 
XXX: Someone needs to make setjmp/longjmp save and restore the signal stack!
 1998-09-26 23:46:01 +00:00
mycroft
2142384565 Assign my copyrights to TNF. 1998-08-15 09:36:04 +00:00
perry
2cc5ae3efa add memcmp.S to libkern. 1998-08-04 01:35:57 +00:00
perry
73e9c49b2b add memmove.S to libkern. 1998-08-04 01:24:59 +00:00
mycroft
982e920022 const poisoning. 1998-07-26 14:13:00 +00:00
thorpej
0c3c6dabb8 Use _C_LABEL() to generate C labels. 1998-07-01 06:24:25 +00:00
thorpej
0b12e1c944 Generate C labels with _C_LABEL(). 1998-07-01 01:28:48 +00:00
mycroft
cf02652abc And rindex.S... 1998-02-22 07:21:32 +00:00
mycroft
6b7f2d0f92 And index.S... 1998-02-22 07:20:24 +00:00
mycroft
c8cf6620bb Copy strchr.S and strrchr.S as well. 1998-02-22 07:01:11 +00:00
mycroft
96b33a9cda Copy more files to libkern. 1998-02-22 06:37:54 +00:00
perry
a3a46419b5 RCS Id Police. 1998-01-09 03:45:03 +00:00
thorpej
bedc7b48df Add syscall stubs for __vfork14(). These are basically copies of Ovfork.S 
with the syscall numbers changed.

Since 4.4BSD vfork(2) did not share address space, Ovfork.S could be changed
to be identical to fork.S (modulo syscall numbers).  __vfork14.S, however,
needs to remain separate since with a shared address space, the stub needs to
pre-decrement the stack and do an indirect jump to the return address, so that
the shared stackframe is still there when the parent returns.  (Obviously,
this does not apply to systems which to not build stackframes on leaf calls.)
 1998-01-04 20:58:08 +00:00
cgd
435c105d59 lint stubs for assembly routines. 1997-11-05 23:37:06 +00:00
cgd
4d7e773266 A foolish consistency... gen, net, and string all get MD sources 
specified by including a Makefile.inc from the appropriate MD directory.
stdlib doesn't do that, but there's no reason that it shouldn't (and
it'd be nice to eliminate the 'if's from the MI stdlib Makefile.inc).
 1997-11-05 22:59:37 +00:00
lukem
2a55b0f192 rcsid police 1997-10-09 10:07:40 +00:00
christos
1394f01b4a RCSID fixes: Always use the NetBSD rcsid and the macro RCSID() defined in 
<machine/asm.h>; Also syscalls should be protected using the SYSLIBC_SCCS
define not LIBC_SCCS
 1997-07-16 14:37:13 +00:00
christos
91c9c62e44 Fix RCSID's 1997-07-13 18:45:15 +00:00
christos
35abd9e88d Add missing math.h include 
Fix RCSIDs
 1997-07-13 18:38:28 +00:00
jtc
5f28317441 Use xorl/movb instead of movzbl when loading registers before computing 
the return value.
 1997-05-19 23:55:00 +00:00
kleink
2913a7a8a4 Consistency: distinguish between PSEUDO() and PSEUDO_NOERROR(). 1997-05-02 18:15:15 +00:00
thorpej
1f92a78982 DEFS.h is gone from here, don't copy it up to libkern. (It will be gone 
from libkern soon, as well)
 1997-04-25 01:04:15 +00:00
thorpej
aa6103a33e Garbage-collect unneeded file. 1997-04-24 23:50:27 +00:00
cgd
f4b5c163ef __asm rather than asm, for lint 1996-12-20 20:35:48 +00:00
jtc
11935403ef PROF -> GPROF 1996-11-30 02:31:49 +00:00
jtc
f6f38dd61e Changed the test that determines whether or not source and destination 
memory regions are "potentially overlapping" to a test that determines
that the regions are actually overlapping.  Because the code for the
overlapping case is seven instructions longer, this signifcantly
improves performance in the average case.
 1996-11-12 00:50:06 +00:00
mycroft
c9ec05f4b2 Treat reboot() like a normal system call. From PR 2458. 1996-11-11 13:41:08 +00:00
jtc
9d7f517756 Added new macros: 
SYSTRAP(x):             Expands to the code used to call syscall x.
				This is used to simplify other macros.

        SYSCALL_NOERROR(x):     Like SYSCALL except that "x" is a syscall
				that can never fail.

        RSYSCALL_NOERROR(x):    Like RSYSCALL except that "x" is a syscall
				that can never fail.
 1996-10-17 18:14:56 +00:00
jtc
daa40d9a50 Add explicit return type 1996-02-05 04:30:51 +00:00
jtc
43d7567da3 Removed unused CALL macro 1995-12-28 22:35:54 +00:00
jtc
051ae6c48a Remove #include "SYS.h"; it is not needed (by normal assembly functions) 1995-12-28 21:32:25 +00:00
jtc
3f78e35cca Use <machine/asm.h> instead of DEFS.h 1995-12-28 20:03:51 +00:00
jtc
24a6d94c0d Added macros definitions for use with ANSI preprocessors. 1995-12-28 19:44:11 +00:00
pk
02cf7515b7 Make PIC safe. 1995-06-20 22:45:46 +00:00
jtc
7b4ed4f858 Winning Strategies has placed this code into the Public Domain 1995-04-28 22:59:46 +00:00
jtc
390695fb9c $Id: $ -> $NetBSD: $ 1995-04-28 22:57:54 +00:00
jtc
954b796156 Winning Strategies has placed this code into the Public Domain 1995-04-28 22:53:59 +00:00
mycroft
10cfe03e6d Stylistic change to match fpsetsticky(). 1995-04-09 21:55:50 +00:00
mycroft
65a1322cd9 Reverse sense of exception bits. 1995-04-09 21:55:20 +00:00
mycroft
42d9c8af6c Oops; need to use fnstenv/fldenv for this. 1995-04-09 21:00:57 +00:00
mycroft
a94ab51d20 Fix typo. 1995-04-09 20:44:02 +00:00
mycroft
10b402aa60 Add fpset{mask,round,sticky}(). 1995-04-09 20:33:13 +00:00
mycroft
ddbc579aa7 Another optimization. 1995-04-09 19:31:33 +00:00
mycroft
14e246dc4a Optimize. 1995-04-09 19:18:49 +00:00
jtc
907e54c9e9 ENTRY(fpgetmask) -> ENTRY(fpgetsticky) 1995-04-09 19:14:28 +00:00
jtc
80bba6a1e1 Added flt_rounds, fpget{round,mask,sticky}. 1995-04-07 14:57:16 +00:00
mycroft
ce36f636ab Separate machine dependencies. 1995-03-20 14:45:27 +00:00
mycroft
4c34be6b52 Clean up deleted files. 1995-03-01 00:00:00 +00:00
cgd
572e3f3188 don't forget inifinity.c 1995-02-25 16:24:22 +00:00
cgd
ea1ca14ecb need these for new gen/Makefile 1995-02-25 16:20:12 +00:00
cgd
6929ad87a5 need these now, with new net Makefile.inc 1995-02-25 14:58:43 +00:00
jtc
e7d917e6eb Remove extra "u" constraint that caused gcc 2.6.3 not to compile this file. 
Note that gcc 2.4.5, the compiler we are currently using, still compiles it
correctly after this change.
 1995-02-17 06:01:47 +00:00
mycroft
d04155c293 Optimize better. 1995-02-05 14:58:44 +00:00
jtc
b4bd7fea24 Replaced pops with adds. 1994-12-24 01:16:44 +00:00
jtc
26eccb0a9b Exchange offsets of "saved signal mask" and "signal mask saved" so 
that the layout of sigjmp_bufs and jmp_bufs are the same (except
for the "signal mask saved" appended to the end).
 1994-12-24 01:05:44 +00:00
mycroft
fcc40a849d If len == 0, then the result must be 0 regardless of the other arguments. 1994-11-24 16:36:35 +00:00
mycroft
2db41a19e7 Use trap gate to enter kernel. 1994-10-26 19:49:42 +00:00
mycroft
837f99d25c Clean up deleted files. 1994-10-06 04:38:25 +00:00
mycroft
345c8ef85c Clean up deleted files. 1994-04-02 05:36:54 +00:00
cgd
da34d8a406 have cerror DTRT on returns, w.r.t. quads and -1. it needs to be done 
here (think of syscall(SYS_lseek,...)).  also, kill bogus lseek thang.
 1994-04-02 05:36:52 +00:00
mycroft
b3086b2299 Need to set %edx to -1 before cerror, though perhaps we should have something 
more generic for this.
 1994-03-31 18:38:57 +00:00
mycroft
a3450ab6e8 Add a .text and .align to SYSCALL(). 1994-03-31 18:31:23 +00:00
jtc
98cbb217ac mem -> reg & reg->reg moves take the same time; so save a cycle by reading 
the block length from the stack instead of caching it in a register.
 1994-03-22 01:15:47 +00:00
jtc
1f29a3d910 Smaller & Faster. 1994-03-16 17:40:23 +00:00
jtc
5ac78ccb34 [hn]to[nh][sl] functions used xchgb %h1,%b1 instead of the faster (on the 
i486 & i586) rorw $8, %w1.
 1994-03-16 17:34:14 +00:00
jtc
915f7d4d3d Use RCSID macro. 1994-03-12 01:48:26 +00:00
jtc
c95cd47ba2 Use RCSID macro for RCS ID's. 1994-03-12 01:39:55 +00:00
mycroft
90ff28fef4 Style police. Use je' and jne' only on the result of an equality test; 
use `jz' and `jnz' in all other cases.
 1994-02-14 20:05:52 +00:00
jtc
7f582f99d4 Fix spelling mistake: cashe -> cache. 1994-02-14 17:45:16 +00:00
jtc
01284ad877 Performance improvement from Bruce Evans. 
Removes one test instruction for each character.
 1994-02-14 17:44:39 +00:00
jtc
f28455f783 Use "ror $8,%ax" instead of "xchg %al,%ah": equal on a i386, 1 cycle faster 
on a i486, and 2 cycles faster on a iPentium.
 1994-02-14 17:43:19 +00:00
jtc
5cffad2151 Use movzbl, not movsbl, to zero extend for unsigned comparison. 
Fix from Bruce Evans.
 1994-02-07 20:57:05 +00:00
jtc
e2c220f94b Fix spelling error in Copyright notice 1994-01-28 20:34:33 +00:00
mycroft
1fe07f186d Separate curbrk and mincrk. 1994-01-27 15:08:03 +00:00
mycroft
3463cb4eef Trivial speedup inspired by SPARC code. 1994-01-27 15:00:49 +00:00
mycroft
ef980f76fe One last tweak. 1994-01-27 06:53:25 +00:00
mycroft
22e614ce10 Random cleanup. 1994-01-27 06:34:59 +00:00
mycroft
9c8862a970 Pedanticism. 1994-01-27 06:34:02 +00:00
mycroft
3cf1bd9939 SYS_brk --> SYS_break. Where's my axe? 1994-01-27 04:30:34 +00:00
mycroft
17b2a501cd Stylistic changes. 1994-01-27 04:16:50 +00:00
mycroft
0496df7164 More stylistic changes. 1994-01-27 04:14:50 +00:00
mycroft
e84d8b28f3 Stylistic changes. 1994-01-27 04:10:20 +00:00
mycroft
b6b0ec3424 Fix bug jtc introduced. 1994-01-27 04:07:13 +00:00
jtc
7835a85a78 Optimization tweaks: 
Use testl %reg,%reg instead of cmpl $0,%reg
Use xorl  %reg,%reg instead of movl $0,%reg
 1994-01-24 19:24:36 +00:00
pk
39c0326588 PIC_*() macros moved to <machine/asm.h> 1994-01-07 00:48:22 +00:00
jtc
0e09f939b2 Fix bug #24 by renaming _logname_valid to __logname_valid. 1993-12-18 01:02:47 +00:00
mycroft
cc81da7447 Shorten setup for longword operations a little. 1993-12-10 10:51:11 +00:00
mycroft
dca61f6f90 Share code. 1993-12-10 10:45:18 +00:00
jtc
a9e5cc4f83 No reason these can't share code... 1993-12-08 22:10:14 +00:00
pk
f3f7594fc9 Use PIC_PLT for error returns. 
Correct operand order in accessing `minbrk' and `curbrk'.
 1993-12-06 23:28:08 +00:00
pk
417e7a6fff Remove spurious PIC_EPILOGUE and PIC_GOTOFF macros. 1993-12-06 23:27:04 +00:00
pk
3581f42619 Use PIC_PLT() macro for error returns 1993-12-06 23:26:04 +00:00
cgd
0ada107897 update for .S and MACHINE_ARCH 1993-12-04 02:33:35 +00:00
mycroft
448e711c78 Clean up deleted files. 1993-12-04 01:28:42 +00:00
jtc
32d96ccd3c Remove special case for len == 0 --- It wasn't needed. By dropping the 
conditional, the general case (where we are actually swapping bytes) is
a tiny bit faster.
 1993-11-25 01:18:24 +00:00
cgd
2be44f5352 copy SYS.h and DEFS.h, too. 1993-11-05 22:44:00 +00:00
jtc
4418616857 Move the old berkeley sccs id into the header comment like it is done 
for other source files.
 1993-10-21 02:19:25 +00:00
jtc
6be8b83abc Gcc helper functions should still use the ENTRY() macro so they will be 
show up in profiled code.  (The gcc helper functions in the other ports
do this allready).
 1993-10-21 02:03:37 +00:00
jtc
34d1aad0c1 Use PIC_PLT macro with the function calls (as was done with setjmp()). 1993-10-21 01:59:44 +00:00
jtc
79591d04bc So many files in arch/i386 have been changed I might as well run my 
remove unecessary trailing whitespace script.
 1993-10-21 01:48:14 +00:00
jtc
823c36577c Change instances of LIBC_RCS back to LIBC_SCCS. If we are going to change 
th LIBC_RCS, the entire source tree should be updated at once.
Remove && !defined(lint) from conditionals around rcs id's.  No one is
ever going to pass a *.s file through lint.
 1993-10-21 01:39:55 +00:00
jtc
97ad548bc0 Replaced instructions with immediate operands with compatible alternatives 
saving a few bytes while the cycle count remains the same --- could
actually be faster, depending on the cache, prefetch queue, etc.
 1993-10-20 18:50:15 +00:00
jtc
6802033480 sigsetjmp() for the i386. 1993-10-19 20:44:00 +00:00
jtc
39ff8227a8 Makefile.inc, basically a place to put KMSRC definition 1993-10-15 01:24:47 +00:00