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Sticky flags are in the left half of fpsr; not the undefined bits
in the right half. OK miod@.
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in the right half. OK miod@.
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ok kettenis@
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ok kettenis@
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ok kettenis@
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ok kettenis@
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HPPA longjmp tests that the env parameter < the current stack pointer.
The test relies on the stack being at the end of the memory space.
This test is wrong for a couple of reasons:
- the main stack is at 0x78000000-0x80000000, but allocations between
0x80000000-0xc0000000 are available to the program,
- pthread stacks may be at any place in the address space, allowing a
heap-allocated env parameter to fail the check.
ok deraadt@, kettenis@, guenther@ at least
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ok miod
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tested by otto@; ok miod@
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On mips64, also correct the name called from plain cerror to __cerror.
"looks correct" miod@
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local registers for a few temporaries. This was changed to use two global
registers. Maybe to permit use in-kernel without conflicting with the
register V7 register window handlers. (Was this done by Chris Torek? Is this
related to Gordon Irlam's work? Or was it in NetBSD? Hard to tell because
NetBSD removed their original cvs tree.)
In V8 the ABI was tightened; more global registers became offlimits in
different ways. We started supporting sun4m, and did not consider this.
As a result, the global registers chosen are the wrong choice. In
particular, %g7 is a poor choice for upcoming TLS work. It looks like
it is safer to use %g5 and %g6 since these functions are "system software".
All re-entrant parts of the system save it.
On sparc64 these functions are in libc per ABI requirement, but are unused.
On sparc, they occur in bootblocks (no reentrancy), kernel (reentrancy saves
globals; kernel is not ABI compliant), userland libc (signal handlers save
globals), and ld.so (symbol binding is not re-entrant on its own).
Discussed rather extensively with guenther, kettenis, miod and drahn.
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that didn't already have one, and then immediately use it in libc's
SYS.h
ok miod@
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we don't provide the silly union to decompose the value. This will allow
userland to flip the ``flush denormalized to zero'' setting, which apparently
is being relied upon by tcl.
Asked by jasper@ a long time ago. Riding upon the upcoming libc major crank.
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them; allows userland with stack beyond 2GB to run.
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referencing it by name; silences a linker warning; no functional change.
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ecvt, fcvt, gcvt, *printf, strtof, strtod, strtold act per ieee
1003.1. after these massive changes, remove unused files which
would not work now. reported by Maksymilian Arciemowicz; ok theo
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needed for gcc -ftrampoline operation as well as by some third-party
software.
Although the implementation uses the sysarch() sysctl, the wrapper is
added to libc as it was a direct system call (which it is on IRIX).
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to 2GB of vm space.
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was incorrectly being treated as signed. ok miod@
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are available. spotted by theo
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- remove frexp in hppa64, cloned from hppa
- move generic ieee754 implementations of modf and ldexp to gen
ok kettenis@, "looks good" millert@
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it away. ok miod@
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and isnan would expand to macros and compatibility aliases won't work
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- make long double versions weak aliases to double versions,
on archs where long doubles are 64 bits
- no need to have two finites. finite() and finitef() are
non-standard 3BSD obsolete versions of isfinite. remove
from libm. make them weak_alias in libc to __isfinite and
__isfinitef instead. similarly make 3BSD obsolete versions
of isinf, isinff, isnan, isnanf weak_aliases to C99's
__isinf, __isinff, __isnan, __isnanf
- bump major
ok millert@
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drahn@ but tweaked to use same scratch reg as PIC_PROLOGUE.
okay miod@ drahn@
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- provide proper dtoa locks
- use the real strtof implementation
- add strtold, __hdtoa, __hldtoa
- add %a/%A support
- don't lose precision in printf, don't round to double anymore
- implement extended-precision versions of libc functions: fpclassify,
isnan, isinf, signbit, isnormal, isfinite, now that the ieee.h is
fixed
- separate vax versions of strtof, and __hdtoa
- add complex math support. added functions: cacos, casin, catan,
ccos, csin, ctan, cacosh, casinh, catanh, ccosh, csinh, ctanh, cexp,
clog, cabs, cpow, csqrt, carg, cimag, conj, cproj, creal, cacosf,
casinf, catanf, ccosf, csinf, ctanf, cacoshf, casinhf, catanhf,
ccoshf, csinhf, ctanhf, cexpf, clogf, cabsf, cpowf, csqrtf, cargf,
cimagf, conjf, cprojf, crealf
- add fdim, fmax, fmin
- add log2. (adapted implementation e_log.c. could be more acruate
& faster, but it's good enough for now)
- remove wrappers & cruft in libm, supposed to work-around mistakes
in SVID, etc.; use ieee versions. fixes issues in python 2.6 for
djm@
- make _digittoint static
- proper definitions for i386, and amd64 in ieee.h
- sh, powerpc don't really have extended-precision
- add missing definitions for mips64 (quad), m{6,8}k (96-bit) float.h
for LDBL_*
- merge lead to frac for m{6,8}k, for gdtoa to work properly
- add FRAC*BITS & EXT_TO_ARRAY32 definitions in ieee.h, for hdtoa&ldtoa
to use
- add EXT_IMPLICIT_NBIT definition, which indicates implicit
normalization bit
- add regression tests for libc: fpclassify and printf
- arith.h & gd_qnan.h definitions
- update ieee.h: hppa doesn't have quad-precision, hppa64 does
- add missing prototypes to gdtoaimp
- on 64-bit platforms make sure gdtoa doesn't use a long when it
really wants an int
- etc., what i may have forgotten...
- bump libm major, due to removed&changed symbols
- no libc bump, since this is riding on djm's libc major crank from
a day ago
discussed with / requested by / testing theo, sthen@, djm@, jsg@,
merdely@, jsing@, tedu@, brad@, jakemsr@, and others.
looks good to millert@
parts of the diff ok kettenis@
this commit does not include:
- man page changes
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other ieee fp archs do; pointed out by theo. tested by theo
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- is{inf,nan} should be macros for real-floating, so rename to
__is{inf,nan}, per C99
- implement C99 __fpclassify(), __fpclassifyf(), __isfinite(),
__isfinitef(), __isnormal(), __isnormalf(), __signbit(), __signbitf()
- long functions added, but not yet enabled, till ieee.h is fixed
- implement vax equivalents of the functions
- reimplement isinff, isnanf in a better way, and move to libc
- add qnan bytes for all archs
- bump major
man pages will follow
ok millert@. arm bits looked over by drahn@
discussed w/ theo, who showed the right direction, to put these
functions in libc
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fixes special cases, such as neg. zero, and makes C99 conformant
ok miod@, millert@
since there's nothing else in arm's fabs.c, replace 4-clause license
w/ the one at /usr/share/misc/license.template
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Not sure what's more surprising: how long it took for NetBSD to
catch up to the rest of the BSDs (including UCB), or the amount of
code that NetBSD has claimed for itself without attributing to the
actual authors.
OK deraadt@
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arguments from the stack, since the kernel will now copyin() them when
necessary.
This makes all system calls (but mmap()) slightly faster.
WARNING! After this commit, your binaries must run against a kernel
featuring m88k/m88k/trap.c r1.34 or better - i.e. a 4.1 or later kernel.
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stuff to LSRCS
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