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

Tidy up how __sigaction14_sigtramp.c is added to SRCS.

provide a common softfloat fenv implemenation and use it for softfloat builds.
restore ABI compatibility with previous releases for ieeefp.h on sh3.
add namespace.h protection for all the fenv interfaces.
use MKSOFTFLOAT on sh3 instead of assuming softfloat.
standardize on comparing MKSOFTFLOAT with "no".
remove the arm-specific softfloat fenv code (which also had several bugs).
fix logic errors in the arm hardfloat feraiseexcept() and feupdateenv().

branches: 1.6.68; 1.6.72;
G/c KMSRCS and KMINCLUDES now that we have common/lib/libc

Switch arch/sh3/sys to the new compat code layout.

Implement siginfo for sh3.

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entry point has been replaced by the new __sigaction14() which is a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

branches: 1.2.4;
Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

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: 1.10.4; 1.10.10;
Correctly define inta using a helper macro for the #

branches: 1.9.40;
Drop unnecessary nops.

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

Be consistent about macro indentation.
Indent delay slot instructions.
Whitespace changes only, same binary code produced.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

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: 1.1.6;
libc for SH3.
TODO: fplib

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

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

Add machine-dependent definitions for gdtoa.

Add machine-dependent definitions for gdtoa.

Use fabs_ieee754.c.

branches: 1.25.6; 1.25.12;
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.)

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

remove GCC2 support

retire HAVE_GCC3/HAVE_GCC4 and introduce HAVE_GCC that is set to 2, 3 or 4.

_setjmp and _longjmp are not compat functions. Noticed by Havard Eidnes.

Add lint stubs for __setjmp14 and __sigsetjmp14.

Switch arch/sh3/gen to the new compat code layout.

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: 1.16.6;
* 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.

In gcc3 world the "millicode" must be provided by libgcc*.a, so don't
include it in libc.

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

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.

Add __movstr_i4_{odd,even} for -m4.
Written by SHIMIZU Ryo.

Remove non-existent ldexp.c from SRCS.

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: 1.4.4;
movstrSI*() for gcc -Os

Add softfloat glue for sh3.

branches: 1.2.2;
Add NAN constant glue for sh3.

libc for SH3.
TODO: fplib

Switch arch/sh3/gen to the new compat code layout.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

Switch arch/sh3/gen to the new compat code layout.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

Follow the pattern from powerpc, make lint happy.

branches: 1.5.4;
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 SET_ENTRY_SIZE macro to hide verbose .size arithmetic.

Use constants from <machine/setjmp.h> for better readability.

Add .size directives.
While here, indent instructions in the rts delay slots.

_setjmp and _longjmp are not compat functions. Noticed by Havard Eidnes.

Switch arch/sh3/gen to the new compat code layout.

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

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

libc for SH3.
TODO: fplib

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Indent delay slots. Whitespace change only, same object code produced.

don't profile (use NENTRY() and ALTENTRY())

use _C_LABEL()

libc for SH3.
TODO: fplib

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Do not profile. Indent delay slot.

use _C_LABEL()

libc for SH3.
TODO: fplib

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Do not profile. Indent delay slot.

use _C_LABEL()

libc for SH3.
TODO: fplib

Use fabs_ieee754.c.

branches: 1.3.44; 1.3.50;
add a local prototype for fabs()

__STDC__ is always defined on NetBSD.

branches: 1.1.6;
libc for SH3.
TODO: fplib

fix various typos, mainly in comments, but also log messages, docs, game text.

fix the mapping table. this sh3 version was originally copied from arm,
but FP_RP and FP_RM have opposite values on sh3 vs. arm.

branches: 1.6.2; 1.6.4;
Call libc's fpgetround.

branches: 1.5.10;
Add a void to make function declaration c89.

branches: 1.4.36;
Remove more duplicate #includes, and a few spurious whitespaces at EOL
From Slava Semushin <slava.semushin@gmail.com>

Fix some typos.

Add missing __RCSID()

libc for SH3.
TODO: fplib

Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

Add softfloat glue for sh3.

branches: 1.1.2;
libc for SH3.
TODO: fplib

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;
libc for SH3.
TODO: fplib

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: 1.3.2;
check LIBC_SCCS

Adjust for little endian environments (confirmed by msaitoh).

libc for SH3.
TODO: fplib

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: 1.2.6;
Delint.

libc for SH3.
TODO: fplib

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: 1.2.6;
Delint.

libc for SH3.
TODO: fplib

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).

sync with other archs.

Important fixes:

> 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.

branches: 1.1.6;
libc for SH3.
TODO: fplib

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Do not profile. Indent delay slot.

use _C_LABEL()

libc for SH3.
TODO: fplib

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

branches: 1.3.30;
Registers _REG_Ri defines are numbered backwards, so when we fill
r4-r7 with arguments, use the correct *minus* i to compute the i-th
register index.

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: 1.3.4;
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.

libc for SH3.
TODO: fplib

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Do not profile. Indent delay slot.

style fix (no functional change)

branches: 1.2.2;
use _C_LABEL()

libc for SH3.
TODO: fplib

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Indent delay slot.

style fix (no functional change)

branches: 1.3.2;
don't profile (use NENTRY() and ALTENTRY())

use _C_LABEL()

branches: 1.1.4;
movstrSI*() for gcc -Os

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Do not profile. Indent delay slots.

branches: 1.1.2;
Add __movstr_i4_{odd,even} for -m4.
Written by SHIMIZU Ryo.

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Do not profile. Indent delay slot.

use _C_LABEL()

libc for SH3.
TODO: fplib

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;
Add NAN constant glue for sh3.

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.

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Indent delay slots. Add a comment that the magic number 8 is SIGFPE.

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

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

sync with libkern

libc for SH3.
TODO: fplib

sh3: siglongjmp - restore register context first (PR lib/57946)

branches: 1.11.2;
Consistently pass 0 as first and ignored argument to sigprocmask in the
setjmp implementations.

NFCI.

branches: 1.10.88; 1.10.96;
Use PIC_PROLOGUE_NOSAVE in long jumps, where we don't need to preserve r12.
While here, swap the order in which r4 and r5 saved on the stack so
that r4 is restored further away from its first use.

Oops, supply correct label for __longjmp14 .size directive.

Use PLT for PIC calls to avoids text relocs in the shared library.
Use constants from <machine/setjmp.h> for better readability.
Provide .size directives.

Switch arch/sh3/gen to the new compat code layout.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

sh3: siglongjmp - restore register context first (PR lib/57946)

branches: 1.10.2;
Consistently pass 0 as first and ignored argument to sigprocmask in the
setjmp implementations.

NFCI.

branches: 1.9.88; 1.9.96;
Use PIC_PROLOGUE_NOSAVE in long jumps, where we don't need to preserve r12.
While here, swap the order in which r4 and r5 saved on the stack so
that r4 is restored further away from its first use.

Use PLT for PIC calls to avoids text relocs in the shared library.
Use constants from <machine/setjmp.h> for better readability.
Provide .size directives.

Switch arch/sh3/gen to the new compat code layout.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

On swapcontext(3) preserve r12 too. Properly fixes PR port-sh3/49597.

Adjust _UC_MACHINE_SP(oucp) to "drop" values we pushed to the stack.
t_swapcontext tests pass now with gcc 4.8.

From Yasushi Oshima in PR port-sh3/49597

branches: 1.10.4;
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: 1.9.4; 1.9.6; 1.9.8; 1.9.24; 1.9.28;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.18;
Add .size directive.

PIC_PROLOGUE doesn't take temp register argument, adjust.

Use PLT for PIC calls. Makes the called functions overridable and
avoids text reloc in the shared library.
Same non-PIC code generated.

Took me some time to figure that getcontext does _UC_MACHINE_INTRV(oucp) = 0
for us, so add a comment. While here use official _UC_MACHINE_SET_PC
macro in another comment.

Use macros from <machine/asm.h>. s/r15/sp/. Use cpp-safe label
names. Add comments. Same object code is generated.

branches: 1.3.6;
Generate proper PIC code for libc_pic.a.

Merge the nathanw_sa branch.

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

Use reach-over sources from common/lib/libc

Mark gcc "millicode" functions .hidden if compiled for PIC. NB: these
files are *NOT* used, as we now provide gcc's version of millicode in
libgcc_pic.

Add a comment that explains that

. this function cannot have _PROF_PROLOGUE
. this function cannot be called via PLT

Change ENTRY to NENTRY for the former.

XXX: The latter is important in the gcc3 world, that have shared
libraries. We will need to play tricks with .hidden to make sure
every shared library gets its own private __udivsi3 that it can call
directly, without going through the PLT.

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

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
use _C_LABEL()

libc for SH3.
TODO: fplib

libc for SH3.
TODO: fplib

__asm__ -> __asm

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

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

libc for SH3.
TODO: fplib

__asm__ -> __asm

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

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

libc for SH3.
TODO: fplib

__asm__ -> __asm

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

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

libc for SH3.
TODO: fplib

__asm__ -> __asm

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

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

libc for SH3.
TODO: fplib

branches: 1.1.4;
Add softfloat glue for sh3.

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

branches: 1.1.4;
Add softfloat glue for sh3.

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

branches: 1.1.4; 1.1.6;
Add softfloat glue for sh3.

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.

Add missing prototypes to make softfloat compile with -DSOFTFLOAT_NEED_FIXUNS.

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.

Fix typos in an (unused) function return type.

branches: 1.4.2;
Don't declare functions that are provided elsewhere in libc.

Revert previous change -- turned out I'd got my build environment in a twist.

Add fixunssfsi and fixunsdfsi. These are provided by libgcc2.c in GCC 2.95,
but not in EGCS.

This version of fixunssfsi is almost exactly the arm32 version. fixunsdfsi is
mostly based on fixdfsi, but with simplifications for 64-bit integers.

Only minimal testing has been applied so far.

branches: 1.1.4;
Add softfloat glue for sh3.

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.

libc for SH3.
TODO: fplib

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).

Assembly version of string functions.
Originally from SHIMIZU Ryo.

Use assembly version of ffs(3).

branches: 1.1.6;
libc for SH3.
TODO: fplib

Now that bcopy.S doesn't contain the actual implemenation, move it
back to libc.

move to the common tree.

branches: 1.1.2;
Assembly version of string functions.
Originally from SHIMIZU Ryo.

branches: 1.1.2;
Assembly version of string functions.
Originally from SHIMIZU Ryo.

Use reach-over sources from common/lib/libc

Save 1-4 instructions on all cases except for the ret=0 case.

This is probably the last version from me. :)
You are welcome to speed it up, of course. :)

Here's a benchmark on SH-4 200MHz.
9.2% faster if all the cases occur evenly.

return value C version previous vers this version speed ratio
of ffs() (ns/call) *1 (ns/call) (ns/call) *2 (*1/*2)

Slightly improved version of ffs(3).
Partially from SHIMIZU Ryo <ryo@iij.ad.jp>. Thanks.
Some cases are slower, but other most cases are faster.

Here's a benchmark on SH-4 200MHz.

return value C version previous vers this version speed ratio
of ffs() (ns/call) *1 (ns/call) (ns/call) *2 (*1/*2)

branches: 1.2.2;
Oops, SYSLIBC_SCCS -> LIBC_SCCS

Assembly version of ffs(3).
Confirmed to return the same value as that of the C version.

The results of a simple benchmark on SH-4 200MHz, is shown below.
I think this shows acceptable performance.

return value C version this version speed
of ffs() (ns/call) (ns/call) ratio

Use reach-over sources from common/lib/libc

branches: 1.1.2;
Assembly version of string functions.
Originally from SHIMIZU Ryo.

Use reach-over sources from common/lib/libc

branches: 1.1.2;
Assembly version of string functions.
Originally from SHIMIZU Ryo.

Use reach-over sources from common/lib/libc

branches: 1.1.2;
Assembly version of string functions.
Originally from SHIMIZU Ryo.

Switch arch/sh3/sys to the new compat code layout.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

Added missing _C_LABEL to errno reference.

branches: 1.1.6;
libc for SH3.
TODO: fplib

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: 1.6.44; 1.6.50;
Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

Use PLT for PIC call to _exit to avoid text reloc in the shared library.
Add .size directive.

Use macros from <machine/asm.h>. Add some comments.
Same PIC object code. Almost the same non-PIC object code (b/c of
s/jsr/jmp/ to _exit).

branches: 1.3.6;
In PIC code "braf" to cerror, not "bsrf" to it!

Generate proper PIC code for libc_pic.a.

branches: 1.1.2;
Add __clone() for sh3.

Switch arch/sh3/sys to the new compat code layout.

Add missing files.

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: 1.8.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.18;
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

Implement siginfo for sh3.

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.

Switch arch/sh3/sys to the new compat code layout.

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.

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

fix references to the syscall formerly known as SYS___sigreturn14

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.

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

Trailing whitespace

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

branches: 1.2.18;
Add .size directive.

Implement siginfo for sh3.

This can be simplified to RSYSCALL(__syscall), no special treatment necessary.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
fix syscall() and __syscall(). r0 has to be set to SYS_syscall or
SYS___syscall, respectively. otherwise sys/arch/sh3/sh3/trap.c will
look at the wrong argument.

__syscall is now mandatory

Use JUMP_CERROR instead of messing with errno directly.
Simplify.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
_C_LABEL()

libc for SH3.
TODO: fplib

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: 1.10.44; 1.10.50;
Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.9.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.6.2;
Fix weak alias.

s/minbrk/_C_LABEL(__minbrk)/.

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

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

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

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: 1.10.44; 1.10.50;
Change !_REENTRANT && !PIC case to use r4 too.

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

Use PLT for PIC call to __errno to avoid text reloc in the shared library.
Add .size directive.

branches: 1.7.2;
Provide _REENTRANT code. It's a wonder nobody has noticed this before.
Uncovered by multithreaded bind9 utils.

branches: 1.6.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

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: 1.5.68; 1.5.72;
This can be simplified to PSEUDO(exect,execve).

branches: 1.4.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.1.6;
libc for SH3.
TODO: fplib

Open code _SYSCALL_NOERROR to shave off a memory load and a branch.
Makes this congruent to vforks. Add .size directive.

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.8.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

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

style fix (no functional change)

branches: 1.4.2;
Fix weak alias.

Need an internal name for fork().

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

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

branches: 1.2.30;
Merge the nathanw_sa branch.

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

Switch arch/sh3/sys to the new compat code layout.

Add missing files.

Simplify.

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

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

style fix (no functional change)

branches: 1.4.2;
Fix weak alias.

Need an internal name for pipe(2).

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

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: 1.8.44; 1.8.50;
Provide _REENTRANT version of errno = 0;

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.6.6;
In PIC code "braf" to cerror, not "bsrf" to it!

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

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
_C_LABEL()

libc for SH3.
TODO: fplib

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: 1.9.44; 1.9.50;
Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.8.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.5.2;
Fix weak alias.

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

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

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Merge the nathanw_sa branch.

style fix (no functional change)

branches: 1.3.2;
_C_LABEL()

fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

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.

Switch arch/sh3/sys to the new compat code layout.

Add missing files.

Switch arch/sh3/sys to the new compat code layout.

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

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

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

style fix (no functional change)

branches: 1.3.2;
Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

Renamed reference to compat syscall to conform to new naming scheme.

branches: 1.2.2;
Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

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.

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

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

branches: 1.6.86;
This can be simplified to RSYSCALL(syscall), no special treatment necessary.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
fix syscall() and __syscall(). r0 has to be set to SYS_syscall or
SYS___syscall, respectively. otherwise sys/arch/sh3/sh3/trap.c will
look at the wrong argument.

libc for SH3.
TODO: fplib