Tidy up how __sigaction14_sigtramp.c is added to SRCS.

Use a constructor to get the cache_info.
However memset can be called before the constructor is called, just treat
those as simple fills.
Add CACHE_INFO_DCACHE_LINE_SIZE to assym.h and use it

branches: 1.13.6; 1.13.12;
Kill _NOREGNAMES. Everything should be using %rX now. If it doesn't it
soon will.

Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

G/c KMSRCS and KMINCLUDES now that we have common/lib/libc

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

libgcc has __fixunsdfsi and __fixunssfsi, so don't build
the softfloat versions of these.

Fixes PR toolchain/24509 from Masao Uebayashi.

Add siginfo signal trampoline.

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entry point has been replaced by the new __sigaction14() which is a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.

Add bzero.S and strlen.S to the stuff that gets installed in libkern.

Add PPC assembler routines for ffs(3), bzero(3) and memset(3).

Compile in soft-float support if MKSOFTFLOAT != "no".

branches: 1.2.10;
Modify syncicache on PowerPC from an inline to a real function.
Support different cache line sizes with the same object code in userland.
While here, move the function to implementation name space.

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.12.24;
Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

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

__STDC__ is always defined on NetBSD.

branches: 1.8.2;
* 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: 1.7.12;
* 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.

Use asm.h defines for labels

Remove long obsolete copyright (should have been done before initial import)

Clean up _SYSCALL_NOERROR() a bit.

Fix typo from last commit: `bnlsr' vs. 'bnslr'.

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

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

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

PIC code clobbers %r30 so we need to update the saved oucp with
caller's %r30 manually. Makes old context happy when it needs to do
more function calls after restore.

(oops, forgot to commit this along with swapcontext.S)

branches: 1.4.4; 1.4.18;
Use a constructor to get the cache_info.
However memset can be called before the constructor is called, just treat
those as simple fills.
Add CACHE_INFO_DCACHE_LINE_SIZE to assym.h and use it

branches: 1.3.6; 1.3.8; 1.3.12;
Change to deal with callframe changes

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Generate symbol constants for UC_GREGS_* and CALLFRAME*.

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

Add machine-dependent definitions for gdtoa.

Add machine-dependent definitions for gdtoa.

split fabs.c into hardfloat .S and softfloat .c as requested by joerg

branches: 1.25.4; 1.25.10;
Add PPC TLS support. Add -D_LIBC_SOURCE for tls.c and _lwp.c (powerpc)
so that __lwp_gettcb_fast and __lwp_settcb inlines are define.

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.

build frexp/ldexp/modf in the "compat" part (code is identical)
(These are the easy cases where no assembler implementations exist.)

*setjmp14 are not compat, plain setjmp/sigsetjmp are the compat versions.
Exchange the files.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Push back the descriptions of NaN formats, and descriptions of the
distinction between signalling NaNs and quiet NaNs back into the
machine-dependent headers; treat the implementation of __nanf in the
same spirit.

IEEE 754 leaves the distinction between signalling NaNs and quiet NANs
to the implementation, and unlike our headers used to suggest they're
not identical in the interpretation of the fraction's MSb; in due
course, make those of hppa, mips, sh3, and sh5 reflect reality.

branches: 1.19.6;
* 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.

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

s/!=/==/

The last fix wasn't quite right, but happened to work for me due
to stale dependencies...

Reported by Markus W Kilbinger.

Don't compile fp*.c if doing a soft-float build.

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

* Since there is no single portable IEEE 754 format for a long double,
keep a common implementation of isinfl() and isnanl() to be used by
platforms where `long double' == `double'; move others into
machine-dependent code.
* In due course, consider __VFP_FP__ on arm.

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().

Rename ieee754_function.c to function_ieee754.c, following the convention
used in exec_format.c, loadfile_format.c, subsys_machdep.c etc.
Per discussion with Christos.

Merge the nathanw_sa branch.

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

Handle soft-float case, code from David Querbach of Real-Time Systems Inc.

branches: 1.7.6;
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.

add the ieeefp functions

Modify syncicache on PowerPC from an inline to a real function.
Support different cache line sizes with the same object code in userland.
While here, move the function to implementation name space.

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.

Add frexp.c and modf.c.

New signal stuff for PowerPC.

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Consistently pass 0 as first and ignored argument to sigprocmask in the
setjmp implementations.

NFCI.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

*setjmp14 are not compat, plain setjmp/sigsetjmp are the compat versions.
Exchange the files.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.1.12; 1.1.14;
New signal stuff for PowerPC.

Consistently pass 0 as first and ignored argument to sigprocmask in the
setjmp implementations.

NFCI.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

*setjmp14 are not compat, plain setjmp/sigsetjmp are the compat versions.
Exchange the files.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.1.12; 1.1.14;
New signal stuff for PowerPC.

Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

branches: 1.8.8;
Turn on _UC_TLSBASE for sure in the same manner as other ports.
No functional changes since that flag is turned on via getcontext(2).

Make lint happy.
While here, make sure the top of stack is aligned properly.

branches: 1.6.4;
Add PPC TLS support. Add -D_LIBC_SOURCE for tls.c and _lwp.c (powerpc)
so that __lwp_gettcb_fast and __lwp_settcb inlines are define.

Allow storing and receiving the LWP private pointer via ucontext_t
on all platforms except VAX and IA64. Add fast access via register for
AMD64, i386 and SH3 ports. Use this fast access in libpthread to replace
the stack based pthread_self(). Implement skeleton support for Alpha,
HPPA, PowerPC, SPARC and SPARC64, but leave it disabled.

Ports that support this feature provide __HAVE____LWP_GETPRIVATE_FAST in
machine/types.h and a corresponding __lwp_getprivate_fast in
machine/mcontext.h.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

branches: 1.4.40;
Add missing __RCSID()

Make sure we reference getcontext() by its internal name.

Merge the nathanw_sa branch.

branches: 1.1.2;
file _lwp.c was initially added on branch nathanw_sa.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.1.14; 1.1.16;
Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Handle soft-float case, code from David Querbach of Real-Time Systems Inc.

branches: 1.2.12;
Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

split fabs.c into hardfloat .S and softfloat .c as requested by joerg

branches: 1.4.44; 1.4.50;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

branches: 1.2.2;
Correct input and output of asm.

Handle soft-float case, code from David Querbach of Real-Time Systems Inc.

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: 1.1.4; 1.1.8; 1.1.28; 1.1.30;
split fabs.c into hardfloat .S and softfloat .c as requested by joerg

no need to duplicate the generic fabs_ieee754.c here

split fabs.c into hardfloat .S and softfloat .c as requested by joerg

Call libc's fpgetround.

branches: 1.11.20;
Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Suppress a lint warning.

Do without stfiwx; per PEM32 Rev. 1 it's an optional part of the UISA,
and not implemented on the 601.

Handle soft-float case, from the arm flt_rounds.c.

branches: 1.4.10;
mark an asm statement volatile so it doesn't get optimized out

s/asm/__asm/

Need float.h for prototypes.

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

branches: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Supress a few lint warnings. s/u_int64_t/uint64_t/

Rather than use magic values, include <powerpc/fpu.h> and use those
definitions to generate the magic bits.

Add internal names for fp{get,set}{mask,round,sticky}(), and
externally-visible weak aliases for the internal names.

branches: 1.2.2;
Add some casts to make lint shut up. Reviewed by christos.

add the ieeefp functions

Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

branches: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Supress a few lint warnings. s/u_int64_t/uint64_t/

Rather than use magic values, include <powerpc/fpu.h> and use those
definitions to generate the magic bits.

Add internal names for fp{get,set}{mask,round,sticky}(), and
externally-visible weak aliases for the internal names.

branches: 1.2.2;
Add some casts to make lint shut up. Reviewed by christos.

add the ieeefp functions

Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

branches: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Supress a few lint warnings. s/u_int64_t/uint64_t/

Rather than use magic values, include <powerpc/fpu.h> and use those
definitions to generate the magic bits.

Add internal names for fp{get,set}{mask,round,sticky}(), and
externally-visible weak aliases for the internal names.

branches: 1.2.2;
Add some casts to make lint shut up. Reviewed by christos.

add the ieeefp functions

have fpsetmask() change the FE0/FE1 MSR bits to precise mode if any
FP exceptions are enabled. fix the kernel emulation of mfmsr and mtmsr
to use the correct opcodes for these instructions. ignore PSL_FE
(the FP enable bit) in the MSR that a user program tries to set,
since it will naturally be set for FP-using processes but
we can't let the user process manage that bit.

branches: 1.10.24; 1.10.28;
Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

branches: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Lint cleanup. s/u_int64_t/uint64_t

Rather than use magic values, include <powerpc/fpu.h> and use those
definitions to generate the magic bits.

Add internal names for fp{get,set}{mask,round,sticky}(), and
externally-visible weak aliases for the internal names.

branches: 1.2.2;
Add some casts to make lint shut up. Reviewed by christos.

add the ieeefp functions

Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

branches: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Lint cleanup. s/u_int64_t/uint64_t

Rather than use magic values, include <powerpc/fpu.h> and use those
definitions to generate the magic bits.

Add internal names for fp{get,set}{mask,round,sticky}(), and
externally-visible weak aliases for the internal names.

branches: 1.2.2;
Add some casts to make lint shut up. Reviewed by christos.

add the ieeefp functions

Don't use "f" with non-fp types. Use a union to go between
double and uint64_t. Makes clang happy.

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

branches: 1.9.18;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Add missing __RCSID()

Update FPSCR_FX consistently per the Programming Environment Manual. So
if any sticky bit is set, FPSCR_FX should be set. If no sticky bits are
set, then FPSCR_FX should be clear.

Deal with the way FP_X_INV works. That maps to FPSCR_VX. However FPSCR_VX
is not a sticky, it's actually an inclusive OR of 9 stick bits. So when
FP_X_INV is cleared, we need to clear all of those bits. When FP_X_INV is
set, we set all of them.

Rather than use magic values, include <powerpc/fpu.h> and use those
definitions to generate the magic bits.

Add internal names for fp{get,set}{mask,round,sticky}(), and
externally-visible weak aliases for the internal names.

branches: 1.2.2;
Add some casts to make lint shut up. Reviewed by christos.

add the ieeefp functions

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

branches: 1.4.10;
Trivial KNF.

Make the C version of frexp() consitent across platforms, and handle the
Inf/NaN case.

Use ieee.h structs and macros.

Add frexp.c and modf.c.

branches: 1.1.2;
file getcontext.S was initially added on branch nathanw_sa.

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

branches: 1.5.2;
check LIBC_SCCS

delint

const poisoning.

Fix RCSID's

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

branches: 1.6.6;
Delint.

Separate isnan() into a separate module, and make isinf()/isnan() use ieee.h.

delint

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

Add missing math.h include
Fix RCSID's

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

branches: 1.5.6;
Delint.

Separate isnan() into a separate module, and make isinf()/isnan() use ieee.h.

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

Fix RCSID's
Add missing math.h include

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

fix for -Wshadow

branches: 1.9.10;
Another microoptimization. Take advantage of the addition already having set
the flags for the <=0 comparison.

Reuse the trick of loading 0.0 (rather than 1.0) and then modifying the
exponent. It's a bit faster on some machines.

Remove more unused mulexp variables.

ldexp(denormal, exp>1023) would generate the wrong result in all non-overflow
cases. Totally rework this code to fix this bug *and* make it faster.

Don't ever return -0.0.

Minor style change.

Just some minor cleanup.

Fix RCSID's
Add missing math.h include

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

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

branches: 1.3.30;
Update to use symbolic register names.

Merge the nathanw_sa branch.

branches: 1.1.2;
file makecontext.c was initially added on branch nathanw_sa.

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

branches: 1.4.2;
De-lint. Reviewed by christos.

fix up NetBSD RCS Ids to match the standard, and the leading comment as
to match as well. No functional changes.

branches: 1.2.2;
Fix doubled 'the's.

Add frexp.c and modf.c.

Make NAN a compile time constant (with help from the compiler). Suggested
by krister. Fixes PR 40695.
Make references to the old construct (which we can't remove for binary
compatibility reasons) emit a linker warning.

branches: 1.3.2; 1.3.32;
Push back the descriptions of NaN formats, and descriptions of the
distinction between signalling NaNs and quiet NaNs back into the
machine-dependent headers; treat the implementation of __nanf in the
same spirit.

IEEE 754 leaves the distinction between signalling NaNs and quiet NANs
to the implementation, and unlike our headers used to suggest they're
not identical in the interpretation of the fraction's MSb; in due
course, make those of hppa, mips, sh3, and sh5 reflect reality.

Clean up some rampant code duplication wrt ieee number handling:
- Add alignment-safe double and float unions.
- Use the above for the __infinity and __nan constants on all
architectures that use the standard ieee754 representation of
those constants.
- Add a single copy of various ieee754 math functions (frexp, isinf,
isnan, ldexp and modf) that had numerous duplicates among the
arch-specific directories.
- Use the above functions on all architectures where the generic C
versions where used. Architectures that had local assembly
routines are untouched (for those functions only).

branches: 1.1.6;
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.

Mark _resumecontext as dead. ANSIfy all declarations for it.

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

branches: 1.3.10;
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: 1.2.16;
Merge the nathanw_sa branch.

branches: 1.1.2;
file resumecontext.c was initially added on branch nathanw_sa.

*setjmp14 are not compat, plain setjmp/sigsetjmp are the compat versions.
Exchange the files.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.3.12; 1.3.14;
New signal stuff for PowerPC.

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

*setjmp14 are not compat, plain setjmp/sigsetjmp are the compat versions.
Exchange the files.

Add a missing register prefix, noted by Makoto Fujiwara on the port-macppc
mailing list.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.4.12; 1.4.14;
New signal stuff for PowerPC.

Add #include <sys/syscall.h> for "SYS_sigprocmask".

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

PIC code clobbers %r30 so we need to update the saved oucp with
caller's %r30 manually. Makes old context happy when it needs to do
more function calls after restore.

branches: 1.7.4; 1.7.18;
Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.6.6; 1.6.8; 1.6.12;
Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

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

branches: 1.3.30;
Convert to use register prefixes.

Merge the nathanw_sa branch.

branches: 1.1.2;
file swapcontext.S was initially added on branch nathanw_sa.

When compiling for _STANDALONE, omit a bunch of headers which aren't really
needed and which trigger build problems.

(These two files should probably be unified and put under common/...)

branches: 1.14.10; 1.14.16;
__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

export size_t __getcachelinesize(void) for memset()

Need <stdlib.h> for abort() prototype.

Add sync before isync since the MPC74xx require it.

Use size_t in prototype (so this will be LP64 clean for PPC64 someday).
Calculate len separately for icache & dcache in case each has different
cacheline widths. Make the code for both loops the same except for the
dcbst/icbi. Deal with sizes >=2GB properly (like that'll happen but ...)

make compile with _STANDALONE

Remove leftover debug code. Oops.

Use new CPU_CACHEINFO sysctl to get more detailed information about
cache layout.

Ansi'fy. (to make this compile under -Wstrict-prototypes)

branches: 1.4.2;
delint (variable is only used for size, so make if size_t instead of int).

sync with libkern version; <vm/vm.h> -> <uvm/uvm_extern.h>

* Add getcachelinesize() prototype.
* Make this compile with -D_STANDALONE.

Modify syncicache on PowerPC from an inline to a real function.
Support different cache line sizes with the same object code in userland.
While here, move the function to implementation name space.

branches: 1.1.4; 1.1.8;
Use a constructor to get the cache_info.
However memset can be called before the constructor is called, just treat
those as simple fills.
Add CACHE_INFO_DCACHE_LINE_SIZE to assym.h and use it

Build {h,n}to{n,h}{l,s}() into object code; addresses PR port-macppc/21541
from Tsuyoshi MOMOSE.

branches: 1.1.16;
Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Softfloat support files for PowerPC.

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

Softfloat support files for PowerPC.

All the versions of softfloat-specialize were practically identical, so replace
them with a single one.

Softfloat support files for PowerPC.

Don't define a new enum. Just #define round_* to their FP_Rx instead.

Add __floatunsidf __floatunsisf __floatunsitf routines.
XXX i think they are correct but not sure.

if SOFTFLOAT_FOR_GCC is not defined, don't declare float_detect_tininess.

Fix conflict in definitions.

Add SIGFPE support to SoftFloat, so fpsetmask/fpgetmask now work. A new
variable, float_exception_mask (#defined to _softfloat_float_exception_mask)
contains the current exception mask.
Also make the argument to float_raise into an fp_except.
Also synchronise file header comments between files.

Consistently declare the types of float_rounding_mode and float_exception_flags
as fp_rnd and fp_except respectively.

Softfloat support files for PowerPC.

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).

Obsolete hack for evbppc to replace memcmp(9), memcpy(9), and memmove(9)
with strictly-aligned versions.

Now all 32-bit powerpc ports share the same libc binary.

This change together with the preceding similar change in libkern slightly
improve performance for DHT (ibm4xx/405GP) and RB800 (MPC8533E).

See changes in bytebench scores:

- DHT https://gist.github.com/rokuyama/301063355de9733bea515b84ef574c0a
- RB800 https://gist.github.com/rokuyama/60ad665d367d6d110b79ec44707f39ff

Improvements may be negligible, but this does not cause performance
regressions at least.

This hack was for 403, but unaligned memory access is now emulated by
kernel. This should result in serious performance regression for 403.
We will provide strictly-aligned versions by ld.so.conf.

Improve previous:

- Add suffix ``d'' for mkdep(1).
- Improve comment a little...

For evbppc, use C version of bcopy(3), memcpy(3), memcmp(3), and
memmove(3) consistently for debug library (*.go) in order to avoid
alignment faults for 403.

update all of these makefiles for the .so -> .pico change.

most of them are most harmless, but the libgcc parts are quite essential.
before this change, all the special rules for .pico files were not applied,
and exception handling wasn't enabled. this caused c++ exceptions not to
work on sparc64.


this fixes the build of boost-headers (it was correctly calling exception
support broken!), which in turn makes all the things that depend upon it
to actually work again on sparc64.

Change NO_SRCS lines to specify .S in order to exclude the .c file from
SRCS but add it to LSRCS (sort of makes sense!).

bzero.S also defines memset(), so exclude memset.c

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.

Remove references to index.c and rindex.c (strchr.c and strrchr.c
now provide the definitions).

branches: 1.8.10;
Fix a stupid typo in a comment. Pointed out by Juergen Hannken-Illjes.

Back out the ppc assembler changes for memcpy/memmove/memcmp on evbppc.
It breaks the explora because the cpu (403) cannot deal with unaligned
accesses. Reported by Juergen Hannken-Illjes.

Make use of ppc tuned assembler.

branches: 1.5.10; 1.5.16;
G/c KMSRCS and KMINCLUDES now that we have common/lib/libc

Add bzero.S and strlen.S to the stuff that gets installed in libkern.

Add assembler version of strlen.

Add PPC assembler routines for ffs(3), bzero(3) and memset(3).

branches: 1.1.14;
Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

PR/50228: Christian Groessler: fix bzero(ptr, 0) on ppc. Check for 0 length
before jumping to cb_memset like memset does.

branches: 1.14.8;
Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

Use a constructor to get the cache_info.
However memset can be called before the constructor is called, just treat
those as simple fills.
Add CACHE_INFO_DCACHE_LINE_SIZE to assym.h and use it

Use pcrel access and avoid GOT entries. Restructure a little to be more
efficient.

branches: 1.11.4; 1.11.10; 1.11.14;
Don't use r0 to restore LR, use r7 instead.

branches: 1.10.2;
Fix some bugs introduced when switching to new GOT/PLT format.

Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

netbsd.org->NetBSD.org

Make it work on cpus with cachelinesize < 32.

Tested on macppc by Markus W Kilbinger.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.4.2;
Use new CPU_CACHEINFO sysctl to get more detailed information about
cache layout.

branches: 1.3.2;
Outifdef some stuff not needed in the _KERNEL case.

Make this work in kernel space too.

Add PPC assembler routines for ffs(3), bzero(3) and memset(3).

Use reach-over sources from common/lib/libc

netbsd.org->NetBSD.org

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.1.2; 1.1.4;
Add PPC assembler routines for ffs(3), bzero(3) and memset(3).

Use reach-over sources from common/lib/libc

netbsd.org->NetBSD.org

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.1.2; 1.1.4;
Add assembler version of strlen.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.3.12; 1.3.14;
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.

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.5.4;
Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.4.6; 1.4.12;
Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.1.2; 1.1.4;
Add a __clone(3) entry point for powerpc.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

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: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
change __weak_extern to __weak_reference so that gcc4 works.

make these consistent.

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

Remove __LIBC12_SOURCE

Invoke the proper signal trampoline depending on SA_SIGINFO.

Merge the nathanw_sa branch.

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.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

fix references to the syscall formerly known as SYS___sigreturn14

New signal stuff for PowerPC.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

fix references to the syscall formerly known as SYS___sigreturn14

branches: 1.2.2;
Convert to use register prefixes. (0 -> %r0, etc.)

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.

Trailing whitespace

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

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

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

branches: 1.1.30;
Add siginfo signal trampoline.

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

branches: 1.3.16;
Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.2.4;
Since powerpc passes 8 arguments in registers and the syscall number in r0,
shuffle register argument so the kernel won't need to access the stack to
retrieve that last argument.

branches: 1.1.60; 1.1.66;
This should convert to syscall but that's too hard. So punt. XXX

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.2.12; 1.2.14;
Remove long obsolete copyright (should have been done before initial import)

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.)

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.13.4;
Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.12.6; 1.12.12;
Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.9.2; 1.9.4;
Thinko in previous: we do always use an internal name.

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

branches: 1.7.4;
Missed in end -> _end cleanup.

Change references to `end' to `_end' as not to invade (or being invaded by)
the user's name space.

* 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.

Add PIC version.

Use asm.h defines for symbols

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.10.2;
PowerPC doesn't have CERROR since it never had a.out.
Use _C_LABEL(__cerror) instead.

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: 1.8.6; 1.8.8;
Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.5.6; 1.5.8;
Support *__errno() indirection.

branches: 1.4.2;
* 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.

Add PIC version.

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

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: 1.3.94; 1.3.98;
Remove long obsolete copyright (should have been done before initial import)

Fix exect(3).

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

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

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.3.2; 1.3.4;
Need an internal name for fork().

branches: 1.2.10;
Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.5.24;
Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

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

branches: 1.3.30;
Convert to use register prefixes.

Merge the nathanw_sa branch.

branches: 1.1.2;
file getcontext.S was initially added on branch nathanw_sa.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

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.

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.8.24;
Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.6.2; 1.6.4;
Need an internal name for pipe(2).

branches: 1.5.10;
* 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.

Add PIC version.

Use asm.h defines for symbols

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.6.6; 1.6.12;
Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.3.6; 1.3.8;
For consistency with all other ports, clear errno in the prologue to the
syscall here as well - while the manual page advises applications to clear
errno themselves their actual behaviour may be questionable, especially in
light of the other ports' implementations.

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

branches: 1.12.4;
Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.11.6; 1.11.12;
Switch to the PIC_GOTSETUP/PIC_TOCSETUP macros for PIC code. Now libc
will be built to use secureplt by default.

Use END(foo) everywhere.
Make __cerror hidden.
Use non-PLT calls to __cerror.
Use assym.h when appropriate.
Use addi to adjust stack instead of loading it.
Add __RCSIDs
Force -D_NOREGNAMES for all .S files.
[this is all in preperation for secure plt support]

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.8.2; 1.8.4;
Thinko in previous: we do always use an internal name.

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

branches: 1.6.10;
Change references to `end' to `_end' as not to invade (or being invaded by)
the user's name space.

* 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.

Add PIC version.

Use asm.h defines for symbols

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Merge the nathanw_sa branch.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.3.12; 1.3.14;
Add PIC version.

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

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.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

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 PowerPC compat files from arch/powerpc to compat/arch/powerpc.

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 signal stuff for PowerPC.

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.7.12; 1.7.14;
* 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.

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.

Add PIC version.

New signal stuff for PowerPC.

Use asm.h defines for symbols

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.7.12; 1.7.14;
* 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.

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.

Add PIC version.

New signal stuff for PowerPC.

Use asm.h defines for symbols

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

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

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 signal stuff for PowerPC.

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Move PowerPC compat files from arch/powerpc to compat/arch/powerpc.

Convert to use register prefixes. (0 -> %r0, etc.)

branches: 1.7.12; 1.7.14;
* 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.

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.

Add PIC version.

New signal stuff for PowerPC.

Use asm.h defines for symbols

Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>

Since powerpc passes 8 arguments in registers and the syscall number in r0,
shuffle register argument so the kernel won't need to access the stack to
retrieve that last argument.

branches: 1.2.70; 1.2.76;
Remove long obsolete copyright (should have been done before initial import)

Architecture-specific bits for libc on the PowerPC. From Wolfgang
Solfrank <ws@tools.de>