Changed to only include <machine/asm.h>, as the other ports.

Can't be sure cpp can handle x ## y.

Added libc VAX specific files.

Tidy up how __sigaction14_sigtramp.c is added to SRCS.

remove almost all the ability to build netbsd with an a.out target.
we're ELF now, and there are many missing checks against OBJECT_FMT.
if we ever consider switching, the we can figure out what new ones
we need but for now it's just clutter.

this doesn't remove any of the support for exec_aout or any actually
required-for-boot a.out support, only the ability to build a netbsd
release in a.out format. ie, most of this code has been dead for
over a decade.

i've tested builds on vax, amd64, i386, mac68k, macppc, sparc, atari,
amiga, shark, cats, dreamcast, landisk, mmeye and x68k. this covers
the 5 MACHINE_ARCH's affected, and all the other arch code touched.
it also includes some actual run-time testing of sparc, i386 and
shark, and i performed binary comparison upon amiga and x68k as well.


some minor details relevant:
- move shlib.[ch] from ld.aout_so into ldconfig proper, and cut them
down to only the parts ldconfig needs
- remove various unused source files
- switch amiga bootblocks to using elf2bb.h instead of aout2bb.h

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Make longjmp on vax not use sigreturn. Instead it rewrites the
jmp_buf into one compatible with __longjmp14 and relies on that
to change that into a ucontext_t suitable for setcontext(2).

A -I. is needed by vax; had gotten removed from elsewhere.

Change longjmp on VAX (ELF) to use setcontext instead of sigreturn14.

Enable the SIGINFO trampoline.

Deal with changed filename.

Rename __sigtramp1.S to __sigtramp.S.

branches: 1.1.2;
Enable the libc-provided signal trampoline. The old __sigaction14
entry point has been replaced by the new __sigaction14() which is a
wrapper around the __sigaction_sigtramp system call (which is itself
not directly exposed outside of libc).

No shared library version change is necessary; no new symbols
are exposed outside of libc.

Make __cerror protected to restore ABI leak in older libc versions,
where e.g. librt referenced the copy from libc. This still allows libc
to use PC-relative jumps.

branches: 1.11.4; 1.11.6;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.10.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Revert previous: .S files are currently compiled with -traditional-cpp,
so __STDC__ is _not_ always defined.

__STDC__ is always defined on NetBSD.

* Add WSYSCALL() to SYS.h, which creates a system call with an
internal name and a weak alias for the name.
* Add a WEAKASM syscall list, and process it.
* Make sysarch() have an internal name (_sysarch()).

branches: 1.6.2;
Make these work with either a.out or ELF.

Some changes to disassembly easier without causing any performance penalty.

Consistency: distinguish between PSEUDO() and PSEUDO_NOERROR().

Include <machine/asm.h> instead of defining our own ENTRY() macro
Changed all instances of ENTRY() to match the new calling convention
(it takes a second argument ).

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.

Add defs to understand K&R cpp.

Added libc VAX specific files.

Decorate the VAX signal trampoline with the appropriate .cfi
directives to allow exception unwind / backtrace across a signal
handler.

N.B. This is currently disabled, as these .cfi directives cause
linker warnings about incompatible TEXTREL relocations in .eh_frame.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.8; 1.4.20;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.18;
Make longjmp on vax not use sigreturn. Instead it rewrites the
jmp_buf into one compatible with __longjmp14 and relies on that
to change that into a ucontext_t suitable for setcontext(2).

Add UC_STACK and stack_t related definitions.

Use this to symbolically get into ucontext_t and struct sigcontext.

Add strtof(3) and strtold(3); welcome libc 12.137.

Add machine-dependent definitions for gdtoa.

Add machine-dependent definitions for gdtoa.

Attempt to implement fabsf by copying fabs and s/d/f/g.

Vax wizards, please vaxinate if I flubbed this!

branches: 1.17.44; 1.17.46;
remove almost all the ability to build netbsd with an a.out target.
we're ELF now, and there are many missing checks against OBJECT_FMT.
if we ever consider switching, the we can figure out what new ones
we need but for now it's just clutter.

this doesn't remove any of the support for exec_aout or any actually
required-for-boot a.out support, only the ability to build a netbsd
release in a.out format. ie, most of this code has been dead for
over a decade.

i've tested builds on vax, amd64, i386, mac68k, macppc, sparc, atari,
amiga, shark, cats, dreamcast, landisk, mmeye and x68k. this covers
the 5 MACHINE_ARCH's affected, and all the other arch code touched.
it also includes some actual run-time testing of sparc, i386 and
shark, and i performed binary comparison upon amiga and x68k as well.


some minor details relevant:
- move shlib.[ch] from ld.aout_so into ldconfig proper, and cut them
down to only the parts ldconfig needs
- remove various unused source files
- switch amiga bootblocks to using elf2bb.h instead of aout2bb.h

Rename ${SRCS.{alpha,arm,...}.gen} to ${LSRCS.{alpha,arm,...}.gen} because
they ended up in ${LSRCS}, not ${SRCS}. ${SRCS.*} namespace will be used
for more useful things. No functional changes intended.

add _lwp_makecontext for the vax.

* Turn isinf(3) and isnan(3) into C99-style macros.
* Make it possible for ports to override these (i.e., VAX).
* Remove isnanl(), which was internal to libc only.

Fix typo fpclassifd.c -> fpclassifyd.c, reported by Bertram Barth.

Add C99 fpclassify(), isfinite(), isnormal(), and signbit() macros.

Add __infinityf and __infinityl, float respectively long double analogs
of __infinity.

Rework how dependency generation is performed:

* DPSRCS contains extra dependencies, but is _NOT_ added to CLEANFILES.
This is a change of behaviour. If a Makefile wants the clean semantics
it must specifically append to CLEANFILES.
Resolves PR toolchain/5204.

* To recap: .d (depend) files are generated for all files in SRCS and DPSRCS
that have a suffix of: .c .m .s .S .C .cc .cpp .cxx

* If YHEADER is set, automatically add the .y->.h to DPSRCS & CLEANFILES

* Ensure that ${OBJS} ${POBJS} ${LOBJS} ${SOBJS} *.d depend upon ${DPSRCS}

* Deprecate the (short lived) DEPENDSRCS


Update the various Makefiles to these new semantics; generally either
adding to CLEANFILES (because DPSRCS doesn't do that anymore), or replacing
specific .o dependencies with DPSRCS entries.

Tested with "make -j 8 distribution" and "make distribution".

Build _isinfl() and _isnanl().

Add the *context.? sources to SRCS.
Make getcontext _getcontext and add a getcontext weak alias.

Split isnan() into its own file.

Don't build old 1.3 compat jmp stuff for ELF.
For ELF, don't rewind stack on longjmp/_longjmp. (for pth).

branches: 1.5.12;
Fix typos after the hton* changes. Need __*setjmp14.S also.

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.

Actually build __setjmp.S/__sigsetjmp.S for vax. PICifiy the setjmp code.
Fix libm Makefile to handle obj directories.

sigsetjmp/siglongjmp was missing. Code fix by Arne H. Juul.

Added libc VAX specific files.

vax: {,_}longjmp(3): Return 1 if `val` == 0

Found by tests/lib/libc/setjmp/t_setjmp:{,_}longjmp_zero.

use __register_t

branches: 1.4.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.18;
Patterned after the other fixes for __longjmp14.c, include
<compat/include/setjmp.h> also here to make these build.

Fix <tab> nits.

Change longjmp on VAX (ELF) to use setcontext instead of sigreturn14.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.10.40;
Make longjmp on vax not use sigreturn. Instead it rewrites the
jmp_buf into one compatible with __longjmp14 and relies on that
to change that into a ucontext_t suitable for setcontext(2).

Change longjmp on VAX (ELF) to use setcontext instead of sigreturn14.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Put R6 back in the save and adjust frame size for it. Don't save the
register in sigset area, put them after the sigset area.

Don't build old 1.3 compat jmp stuff for ELF.
For ELF, don't rewind stack on longjmp/_longjmp. (for pth).

Change to use a register prefix.

branches: 1.4.2;
Make these work with either a.out or ELF.

Use __sigprocmask14, fix a few more bugs

Actually build __setjmp.S/__sigsetjmp.S for vax. PICifiy the setjmp code.
Fix libm Makefile to handle obj directories.

This should be close...

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.2.2;
Make these work with either a.out or ELF.

This should be close...

Trailing whitespace

vax-specific lint fixes.

define _UC_TLSBASE and use it to pass the TLS pointer to setcontext().
since there is no available space in ucontext_t on vax, pass the
TLS pointer on the stack referenced by the ucontext_t instead.
suggested by joerg.

branches: 1.1.6;
add _lwp_makecontext for the vax.

vax: {,_}longjmp(3): Return 1 if `val` == 0

Found by tests/lib/libc/setjmp/t_setjmp:{,_}longjmp_zero.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.9.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Put R6 back in save mask (to make mask used by PLT routines). Adjust frame
size according. In _longjmp, deal with sp/fp separately since they stored
in reserve order so movq won't work.

Fix a few wrong register uses. (at least I know it works now. :)

Don't build old 1.3 compat jmp stuff for ELF.
For ELF, don't rewind stack on longjmp/_longjmp. (for pth).

Missed an sp in the great %sp cleanup.

Change to use a register prefix.

branches: 1.3.2;
Make these work with either a.out or ELF.

PICify. (e.g. change movl $sym, rX to movab sym, rX)

Added libc VAX specific files.

gcc 4.5 on vax creates PLT stubs with an entry mask of 0xffc
rather than 0 like gcc 4.1 did, so the sneaky assembly functions
that "ret" without really returning now clobber their registers.
adjust these functions to avoid this problem.

branches: 1.4.4;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.22;
Added libc VAX specific files.

Use reach-over sources from common/lib/libc

Change to use a register prefix.

branches: 1.1.12;
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.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.12;
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.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.2.12;
Fix typos after the hton* changes. Need __*setjmp14.S also.

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.

On ports without __HAVE_LONG_DOUBLE, make fabsl alias fabs.

For some reason, fabs lives in libc, not in libm, and our tests now
detect when fabs or fabsl is missing from libm. For those ports that
sometimes have long double and sometimes don't, make it conditional.

Still missing: fabs _and_ fabsl on ia64. Need help from an itanium
wizard! Other portmasters: Please take a look and see if I missed
any ports that might have long double where this alias will not work.

branches: 1.4.42; 1.4.44;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.22;
Added libc VAX specific files.

branches: 1.1.2; 1.1.4;
Attempt to implement fabsf by copying fabs and s/d/f/g.

Vax wizards, please vaxinate if I flubbed this!

branches: 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.30;
Make these compile.

Add C99 fpclassify(), isfinite(), isnormal(), and signbit() macros.

branches: 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.30;
Make these compile.

Add C99 fpclassify(), isfinite(), isnormal(), and signbit() macros.

Update old-style definitions to ANSI, remove a couple of register
definitions along the way. Fixed gcc 4.1 build (thank you vax)

branches: 1.4.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Just some minor cleanup.

Fix RCSID's

Added libc VAX specific files.

Adjust for changes to __infinity decl.

branches: 1.7.2;
check LIBC_SCCS

Set infinity to the highest D-float possible.
XXX - infinity does not exist on vax...

branches: 1.5.2;
delint

const poisoning.

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

Fix RCSID's

Added libc VAX specific files.

Add __infinityf and __infinityl, float respectively long double analogs
of __infinity.

Add missing __RCSID()

Add __infinityf and __infinityl, float respectively long double analogs
of __infinity.

branches: 1.5.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.4.30;
s/sgn/sign (compiles now)

Make these compile too.

Pasto.

C99 7.12.3.2: add library portions of isfinite, but don't build these just
yet.

branches: 1.4.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.30;
s/sgn/sign (compiles now)

Make these compile too.

C99 7.12.3.2: add library portions of isfinite, but don't build these just
yet.

* Turn isinf(3) and isnan(3) into C99-style macros.
* Make it possible for ports to override these (i.e., VAX).
* Remove isnanl(), which was internal to libc only.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Split isnan() into its own file.

branches: 1.5.6;
Delint.

Need internal names for isinf() and isnan().

Add missing math.h include
Fix RCSID's

Add explicit return type

Added libc VAX specific files.

* Turn isinf(3) and isnan(3) into C99-style macros.
* Make it possible for ports to override these (i.e., VAX).
* Remove isnanl(), which was internal to libc only.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Add _isinfl() and _isnanl() routines, currently for internal use only.

* Turn isinf(3) and isnan(3) into C99-style macros.
* Make it possible for ports to override these (i.e., VAX).
* Remove isnanl(), which was internal to libc only.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

branches: 1.1.2;
Split isnan() into its own file.

* Turn isinf(3) and isnan(3) into C99-style macros.
* Make it possible for ports to override these (i.e., VAX).
* Remove isnanl(), which was internal to libc only.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Add _isinfl() and _isnanl() routines, currently for internal use only.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.6.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.4.2;
Make these work with either a.out or ELF.

Go via *__errno() here, too.

branches: 1.2.12;
Converted K&R -> ansi.

Added libc VAX specific files.

vax-specific lint fixes.

branches: 1.3.4; 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.18;
Start the args after the argc. Return to resumecontext after the entry mask.

Add the VAX versions of these.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Add modff

branches: 1.2.2;
Change to use a register prefix.

branches: 1.1.22;
Added libc VAX specific files.

Mark _resumecontext as dead. ANSIfy all declarations for it.

branches: 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.10;
Sync all resumecontext.c versions with the changes originally made
by Matthias Drochner to i386 and alpha:

-check for a NULL uc_link before calling setcontext(2); do a real exit(3)
instead with exit handlers and all that
-If setcontext(2) returns (which it shouldn't), do an _exit(-1) rather
than relying on a sensible return value to use as exit code. Makes
it less likely that an ucontext corruption goes unnoticed.

branches: 1.1.16;
Add the VAX versions of these.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Make longjmp on vax not use sigreturn. Instead it rewrites the
jmp_buf into one compatible with __longjmp14 and relies on that
to change that into a ucontext_t suitable for setcontext(2).

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.4.2;
Make these work with either a.out or ELF.

Actually build __setjmp.S/__sigsetjmp.S for vax. PICifiy the setjmp code.
Fix libm Makefile to handle obj directories.

Use __sigaltstack14(), not sigaltstack().

Added libc VAX specific files.

branches: 1.2.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.30;
Add C99 fpclassify(), isfinite(), isnormal(), and signbit() macros.

branches: 1.2.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.30;
Add C99 fpclassify(), isfinite(), isnormal(), and signbit() macros.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.2.2;
Make these work with either a.out or ELF.

sigsetjmp/siglongjmp was missing. Code fix by Arne H. Juul.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.8; 1.3.20;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.30;
Make sure r0 in the saved context is 0.

Add the VAX versions of these.

Use reach-over sources from common/lib/libc

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.2.2;
Fix some ELF/a.out lossage

Added libc VAX specific files.

Use reach-over sources from common/lib/libc

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.2.2;
Fix some ELF/a.out lossage

Added libc VAX specific files.

Revert previous; mhitch has already committed a workaround to ../Makefile.inc.

It appears necessary to add -I. to CPPFLAGS for nslexer.c. This is
most probably caused by gcc 2.95.3; will be documented in doc/HACKS.
Reviewed by ragge.

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.

Added libc VAX specific files.

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.

Added libc VAX specific files.

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.

Added libc VAX specific files.

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.

Added libc VAX specific files.

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.

Added libc VAX specific files.

Add the 'abs', 'div' and 'erand48' sources to stdlib/Makefile.inc.
Change the arch files only include the .S files.
This adds imaxdiv() to some archs where it was missing.

branches: 1.4.6;
Add C99 functions imaxabs and imaxdiv.

branches: 1.3.20;
build erand48_ieee754.c on everything but vax

Add ISO C99 long long integer general utility interfaces; partially addresses
PR standards/9482.

branches: 1.1.2;
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).

Add memset to libkern on vax, moving existing memset.S to src/common.

While kernel source code is supposed to use <machine/macros.h> via
<sys/param.h> and pick an inline asm version from there, gcc itself
can generate direct calls to memset() for structure initialization, so
the symbol must be provided.

Fixes INSTALL kernel, for which -Os caused gcc to use memset() call to
initialize a struct in uvm_fault_internal().

If SRCS contains any .S files then remove the corresponding .c file from
SRCS and add to LSRCS (for lint).
Change the 'string' Makefiles so that the arch/*/string/Makefile.inc
need only specify the .S files for that architecture and not the .c
files for all the files they don't override.

Change all archs so that strchr.[cS] and strrchr.[cS] exist and generate
duplicate symbols for index() and rindex().
libc and kernel build ok for affected archs (i386, amd64, vax, sun3,
evbmips-eb) all seem ok.
(vax might lose an asm index() - but comments imply it is worse than the C)

VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Added libc VAX specific files.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

s/occurence/occurrence/

Fix name of keyword so it will worwk correctly. :)

branches: 1.4.44;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Use reach-over sources from common/lib/libc

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Use reach-over sources from common/lib/libc

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Add memset to libkern on vax, moving existing memset.S to src/common.

While kernel source code is supposed to use <machine/macros.h> via
<sys/param.h> and pick an inline asm version from there, gcc itself
can generate direct calls to memset() for structure initialization, so
the symbol must be provided.

Fixes INSTALL kernel, for which -Os caused gcc to use memset() call to
initialize a struct in uvm_fault_internal().

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.20;
VAX string functions in assembler. Fixed for NetBSD by Ken Wellsch.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.5.2;
Make these work with either a.out or ELF.

Implement *__errno() redirection, with help from Matt Thomas.

branches: 1.3.2;
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.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.8; 1.3.20;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.32;
Change to use a register prefix.

branches: 1.1.2;
Add __clone(2) for VAX.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

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.

Merge all MD __sigaction14_sigtramp.c copies into one:
- sparc and sparc64 were not using version 0 sigcontext when there were
no arguments in the signal version. This was probably a bug.
- vax is using +1 the version numbers of the other archs.
- Only hppa was defining __LIBC12_SOURCE__ so it was getting a working
sigcontext before. all the other ports that supported sigcontext had
the compat code disabled.
[pointed out by thorpej, thanks!]
If we want to remove sigcontext support from userland at least now there
is less work to do so.

branches: 1.10.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.9.18;
Remove unused local variable (re-declared in inner conditional scope).

make these consistent.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Add missing __RCSID()

save errno while trying to install a !SA_SIGINFO trampoline -- this
is expected to fail with !COMPAT_16 kernels, and we shouldn't
overwrite errno in this case

Enable the SIGINFO trampoline.

Merge the nathanw_sa branch.

Fix a signal handler bug originally reported by Hugh Graham some year ago:
If two signals are sent after each other without the process being run in
userspace between them then the second one will overwrite part of the signal
info stored on the userstack.
Fixed by rewriting and simplifying both the signal delivery code and the
trampoline code. Also bump signal version number to 2.
Rename __sigtramp1.S to __sigtramp.S.

branches: 1.1.2;
New __sigaction14() system call stub which registers the signal
trampoline, and the signal trampolines themselves.

NOTE: These are not yet enabled; they will be enabled after further
testing on more architectures.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

fix references to the syscall formerly known as SYS___sigreturn14

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Make these work with either a.out or ELF.

New libc signal handling stuff.

Since this a signal trampoline #2, make that's in the file name.

netbsd.org->NetBSD.org

branches: 1.1.2;
Fix a signal handler bug originally reported by Hugh Graham some year ago:
If two signals are sent after each other without the process being run in
userspace between them then the second one will overwrite part of the signal
info stored on the userstack.
Fixed by rewriting and simplifying both the signal delivery code and the
trampoline code. Also bump signal version number to 2.
Rename __sigtramp1.S to __sigtramp.S.

Fix a signal handler bug originally reported by Hugh Graham some year ago:
If two signals are sent after each other without the process being run in
userspace between them then the second one will overwrite part of the signal
info stored on the userstack.
Fixed by rewriting and simplifying both the signal delivery code and the
trampoline code. Also bump signal version number to 2.
Rename __sigtramp1.S to __sigtramp.S.

branches: 1.1.2;
New __sigaction14() system call stub which registers the signal
trampoline, and the signal trampolines themselves.

NOTE: These are not yet enabled; they will be enabled after further
testing on more architectures.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

fix references to the syscall formerly known as SYS___sigreturn14

Since this a signal trampoline #2, make that's in the file name.

Decorate the VAX signal trampoline with the appropriate .cfi
directives to allow exception unwind / backtrace across a signal
handler.

N.B. This is currently disabled, as these .cfi directives cause
linker warnings about incompatible TEXTREL relocations in .eh_frame.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.1.52;
Enable the SIGINFO trampoline.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.1.2;
Add a VAX version of __syscall. XXX Doesn't handle if syscall number is
> 0xffffffff or < -0xffffffff.

gcc 4.5 on vax creates PLT stubs with an entry mask of 0xffc
rather than 0 like gcc 4.1 did, so the sneaky assembly functions
that "ret" without really returning now clobber their registers.
adjust these functions to avoid this problem.

branches: 1.6.4;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.5.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.3.2;
Make these work with either a.out or ELF.

Implement *__errno() redirection, with help from Matt Thomas.

branches: 1.1.2;
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.)

Merge riastradh-drm2 to HEAD.

Make __curbrk & __minbrk hidden.

branches: 1.13.4; 1.13.10; 1.13.14;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.12.52;
Use an unsigned comparison against minbrk.
From OpenBSD, changed by Miod Vallat.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.9.2;
Fix a major botch in 1.4 (which I did not do) which broke _brk and malloc.

Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

Thinko in previous: we do always use an internal name.

Add internal names for brk() and sbrk().

Delete the leftover _brk entry; as discussed with Ragge.

branches: 1.3.10;
* 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.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.8.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.6.2;
Fix some ELF/a.out lossage

Make these work with either a.out or ELF.

Implement *__errno() indirection.

branches: 1.3.2;
Some changes to disassembly easier without causing any performance penalty.

Didn't take care of errors when return parameter was long long.
Bug pointed out by Arne Henrik Juul.

Added libc VAX specific files.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
execl, execle and execlp must be weak-aliased.

Change to use a register prefix.

branches: 1.1.2;
These are too simple to not have in assembler. Also shrunk the libs with
~1k of unneccessary code :-)

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.52;
execl, execle and execlp must be weak-aliased.

Change to use a register prefix.

branches: 1.2.2;
change "pushl [r0](ap)" ---> "pushl (ap)[r0]" ... the old version
made a reference to an external symbol "r0" rather that used register r0.

These are too simple to not have in assembler. Also shrunk the libs with
~1k of unneccessary code :-)

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.3.52;
execl, execle and execlp must be weak-aliased.

Change to use a register prefix.

branches: 1.1.2;
These are too simple to not have in assembler. Also shrunk the libs with
~1k of unneccessary code :-)

Mark exect(3) obsolete and bind it to plain execve(2) on all platforms

The original exect(2) from BSD4.2 was enabling bit for tracing
(single-step mode) and calling execve(2). The purpose of it was to generate
a signal for a tracer once the application will change its image to a new
program.

This approach no longer works as:
- exect(2) traces (single-steps) libc and it requires hundreds or
thousands steps before entering a new image
- it's vax and x86 specific code
- this functionality has been moved to the kernel - once a process is
traced it will generate SIGTRAP with si_code TRAP_EXEC and route it to
its debugger
- the side effects and unportability make this interface unusable
- there are no known users of this interface
- it apparently never worked better since day0 of NetBSD ("day0 bug")

Users are requested to move to other execve(2) variants. Calling current
execve(2) as it is the most similar behavior to this one from BSD4.2.

Discussed several times on mailing lists and in PR/51700.

Add warning to exect(3) telling about marking this function obsolete.

This function is prepared to be removed in next libc major bump.

Sponsored by <The NetBSD Foundation>

branches: 1.6.26; 1.6.30;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.5.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.5.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Implement pthread_atfork() (in libc, because the required threadlib
stub behavior is exactly the same as the usual behavior).

Change to use a register prefix.

branches: 1.2.2;
Need an internal name for fork().

branches: 1.1.20;
Added libc VAX specific files.

gcc 4.5 on vax creates PLT stubs with an entry mask of 0xffc
rather than 0 like gcc 4.1 did, so the sneaky assembly functions
that "ret" without really returning now clobber their registers.
adjust these functions to avoid this problem.

branches: 1.5.4;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.8; 1.4.20;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.30;
Add the *context.? sources to SRCS.
Make getcontext _getcontext and add a getcontext weak alias.

Use _ALIGN_TEXT.
Make sure R0 is 0 in the saved context.

Add getcontext(2) stub.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

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.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.4.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.2.2;
Need an internal name for pipe(2).

branches: 1.1.20;
Added libc VAX specific files.

Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.7.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.5.2;
Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

Implement *__errno() indirection.

branches: 1.2.4;
ENTRY() takes two argument now, not one.

Added libc VAX specific files.

Treat reboot() like a normal system call. From PR 2458.

Added libc VAX specific files.

Merge riastradh-drm2 to HEAD.

Make __curbrk & __minbrk hidden.

branches: 1.11.4; 1.11.10; 1.11.14;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.10.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

Shameless hack to reference end when using a.out and _end when using ELF.

branches: 1.7.2;
Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

Thinko in previous: we do always use an internal name.

Add internal names for brk() and sbrk().

branches: 1.3.10;
* 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.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.

These files are obsolete; setlogin() is now implemented in C with a
small syscall stub.

branches: 1.2.2;
Make these work with either a.out or ELF.

Added libc VAX specific files.

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.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

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.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

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.

New libc signal handling stuff.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.3.12;
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.

New libc signal handling stuff.

Added libc VAX specific files.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.6.2;
Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

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.

New libc signal handling stuff.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

the WARN_REFERENCES text "include <signal.h> for correct reference" is pointless
as <signal.h> won't help you, so remove it

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Make these work with either a.out or ELF.

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.

New libc signal handling stuff.

ENTRY() takes two argument now, not one.

PROF -> GPROF

Added libc VAX specific files.

Seperate out the compat support for VAX. Also, make references to the
sigcontext sigtramp code weak so compat can be compiled out.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.6.2;
Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

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.

New libc signal handling stuff.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.

Rename "syscall" to "_syscall" and provide "syscall" as a weak alias.

branches: 1.7.44;
Move IDs into .ident
Use END(x)
Remove a.out support
Make CERROR hidden

branches: 1.6.52;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Change to use a register prefix.

branches: 1.4.2;
Fix some bugs and clean up for ELF & a.out support

Make these work with either a.out or ELF.

ENTRY() takes two argument now, not one.

Added libc VAX specific files.