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.