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