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* Remove unneeded stdlib directories.ed2009-06-231-1/+0
| | | | | | | It's not necessary to add stdlib directories for each architecture, even if the architecture doesn't implement any files of its own. Submitted by: Christoph Mallon
* Provide a type for the argument.rdivacky2009-02-021-1/+1
| | | | Approved by: kib (mentor)
* Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4.ed2008-11-091-2/+1
| | | | | | | | | | | | | | | | | | | | | Looking at our source code history, it seems the uname(), getdomainname() and setdomainname() system calls got deprecated somewhere after FreeBSD 1.1, but they have never been phased out properly. Because we don't have a COMPAT_FREEBSD1, just use COMPAT_FREEBSD4. Also fix the Linuxolator to build without the setdomainname() routine by just making it call userland_sysctl on kern.domainname. Also replace the setdomainname()'s implementation to use this approach, because we're duplicating code with sysctl_domainname(). I wasn't able to keep these three routines working in our COMPAT_FREEBSD32, because that would require yet another keyword for syscalls.master (COMPAT4+NOPROTO). Because this routine is probably unused already, this won't be a problem in practice. If it turns out to be a problem, we'll just restore this functionality. Reviewed by: rdivacky, kib
* Fix some bugs that caused sparc64's quad precision sqrt to getdas2008-04-121-5/+5
| | | | | | the wrong answer for virtually all inputs. Thanks to remko for access to a sparc64 box for testing.
* Make the software emulator for long doubles set the FPU exceptiondas2008-04-121-0/+15
| | | | | | | flags appropriately. The next step is to make it raise a SIGFPE if any exceptions are unmasked. Thanks to remko for access to a sparc64 box for testing.
* Add a new union member to access the exponent and sign of a long doubledas2008-01-181-0/+5
| | | | in a single op. Idea from bde.
* Since nan() is supposed to work the same as strtod("nan(...)", NULL),das2007-12-181-3/+0
| | | | | | | | | | | | my original implementation made both use the same code. Unfortunately, this meant libm depended on a vendor header at compile time and previously- unexposed vendor bits in libc at runtime. Hence, I just wrote my own version of the relevant vendor routine. As it turns out, mine has a factor of 8 fewer of lines of code, and is a bit more readable anyway. The strtod() and *scanf() routines still use vendor code. Reviewed by: bde
* Export gdtoa's __ULto{x,Q}_D2A routine in a private namespace sodas2007-12-161-0/+3
| | | | libm can use it.
* Arrange so that the NaN returned by strtod("nan", NULL) is the same asdas2007-12-161-11/+11
| | | | the NaN returned by strtod("nan()", NULL).
* In scanf, round according to the current rounding mode.das2007-12-031-1/+1
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* Use an intermediate pointer to avoid a strict aliasing warning.jb2007-11-231-1/+2
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* Classify mmap, lseek, pread, pwrite, truncate, ftruncate as pseudopeter2007-07-041-4/+5
| | | | | | | | | | syscalls, unless WITHOUT_SYSCALL_COMPAT is defined. The default case will have the .c wrappers still. If you define WITHOUT_SYSCALL_COMPAT, the .c wrappers will go away and libc will make direct syscalls. After 7-stable starts, the direct syscall method will be default. Approved by: re (kensmith)
* Adjust the syscall stub macros to be consistent in their meaning. Inpeter2007-07-041-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | particular: SYSCALL() makes a syscall, with errno handling, and continues execution directly after the macro in the non-error case. RSYSCALL() is just like SYSCALL(), but returns after success. Both SYSCALL(name) and RSYSCALL(name) export "__sys_name" as a strong symbol, with "_name" and "name" as weak aliases. PSEUDO() is just like RSYSCALL(), but skipping the "name" weak alias. It still does "__sys_name" and "_name". Change i386 to add errno handling to PSEUDO. The same for amd64 and sparc64, with appear to have copied the behavior. ia64 was correct (as was alpha). Just remove some apparently unused variants of the macros. (untested!) I believe powerpc is correct. Fix arm to not export "name" from the PSEUDO case. Remove apparently extra unused variants. (untested!) The errno problem manifested on i386/amd64/sparc64 by having "PSEUDO" classified syscalls return without setting errno. eg: "addr = mmap()" could return with "addr" = 22 instead of setting errno to 22 and returning -1. Approved by: re (kensmith)
* Some libc symbol map cleanups.deischen2007-05-311-4/+0
| | | | | | | | | | | | | | | | | | | | | net: endhostdnsent is named _endhostdnsent and is private to netdb family of functions. posix1e: acl_size.c has been never compiled in, so there's no "acl_size". rpc: "getnetid" is a static function. stdtime: "gtime" is #ifdef'ed out in the source. some symbols are specific only to some architectures, e.g., ___tls_get_addr is only defined on i386. __htonl, __htons, __ntohl and __ntohs are no longer functions, they are now (internal) defines in <machine/endian.h>. Submitted by: ru
* - Add bits for userland profiling. For sun4u this is compile-tested only.marius2007-05-111-0/+1
| | | | - Replace magic 14 with PIL_TICK.
* Use C comments since we now preprocess these files with CPP.deischen2007-04-291-11/+13
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* Per Regents of the University of Calfornia letter, remove advertisingimp2007-01-0923-102/+0
| | | | | | clause. # If I've done so improperly on a file, please let me know.
* The distinction between quiet and signaling NaN formats isdas2007-01-031-0/+21
| | | | | machine-dependent; these files tell the latest version of gdtoa what to do.
* Fix a typo in __fpu_ftox() that caused long double to long (and long long)marius2006-12-241-9/+10
| | | | | | | | | conversion of negative numbers to always result in -1. While at it, rearrange the nearby comment so it fits in 80 chars per line, like the rest of this file does. PR: 107130 MFC after: 1 day
* Instead of re-implementing hton[ls] and friends for each arch, add a new MIcognet2006-11-065-231/+0
| | | | | | | file, net/ntoh.c, which just implement them using the inline functions from <sys/endian.h>. Suggested by: bde
* - change ABI for user trap handler for sun4v (eventually will sync sparc64 nokmacy2006-11-032-0/+7
| | | | | | hardware set up to test at the moment) Approved by: scottl (standing in for mentor rwatson)
* fix bus error in newsyslog by making sure that fields in struct fpemukmacy2006-10-121-0/+1
| | | | that are accessed as 8 byte quantities are 8 byte aligned
* Fix TLS on sparc64 for statically and dynamically linked binarieskmacy2006-10-081-2/+1
| | | | | Approved by: rwatson (mentor) Reviewed by: jmg and marcel
* For _Qp_{fge,fgt,fle,flt}() the SCD states that "Exceptions mimic fcmpeq",marius2006-04-161-4/+4
| | | | | | | this means they should set the cmpe flag when calling __fpu_compare(). Submitted by: stefanf MFC after: 2 weeks
* - Move _Qp_* and __dtoul from FBSDprivate to the list of FBSD_1.0 symbolsmarius2006-04-111-35/+18
| | | | | | | | | | | | | | | | | | | | | | | as well as add __sparc_utrap_install to FBSD_1.0; these are required by the SCD libc 64 psABI and thus meant to be officially exported symbols. - Remove the __fpu_* entries as well as the __sigtramp entry altogether as these are internal to the libc FPU emulation and the signal trampoline initialization in sigaction(2) respectively and thus don't need to be externally visible. - Add __sparc_utrap_setup to the list of FBSDprivate symbols as it's used in src/lib/csu/sparc64/crt1.c to initialize the libc FPU emulation (I think alternatively src/lib/csu/sparc64/crt1.c could be changed to use __sparc_utrap_install instead, at the expense of increasing the size of executables a bit). - Add an entry for the vfork symbol to the FBSD_1 list and entries for it's associated symbols generated by the RSYSCALL() macro to the FBSDprivate list. There's some magic in place that automatically generates code for vfork() if there's no explicit MD code for it so it might make sense to move these symbols from the MD symbol map files to a MI one. The last two changes make the libc symbol versioning useable on sparc64. Ok'ed by: deischen
* Desupport the undocumented NO_QUAD option, just don't compileru2006-03-161-5/+0
| | | | the quad support on 64-bit platforms.
* Add each directory's symbol map file to SYM_MAPS.deischen2006-03-131-0/+1
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* Add symbol maps and initial symbol version definitions to libc.deischen2006-03-131-0/+117
| | | | Reviewed by: davidxu
* Add the functions _Qp_cmp() and _Qp_cmpe() as described in the Sparcstefanf2005-06-211-8/+11
| | | | | | | | Compliance Definition. On sparc64, GCC emits _Qp_cmp() calls for its __builtin_isfoo() functions which are used for C99's isfoo() macros. Approved by: re(dwhite) PR: 73782
* Fix long (and long long) to long double, unsigned to long double and unsignedstefanf2005-05-272-10/+24
| | | | | | | | | | | | | | | long (and unsigned long long) to long double conversions. - Add a parameter that specifies the position of the sign bit to the _QP_TTOQ macro, previously it always looked at bit 31. Pass a negative number to disable sign inspection for unsigned types. This fixes _Qp_xtoq(), _Qp_uitoq() and _Qp_uxtoq(). - In the functions __fpu_itof() and __fpu_xtof(), look at the sign bit to decide whether we're doing a conversion from an unsigned type. If so, don't negate the mantissa if the integer exceeds the biggest signed number. PR: 55773 Patch by: Stephen Paskaluk (based upon) MFC after: 2 weeks
* Remove fpsetsticky(). This was added for SysV compatibility, but duedas2005-03-152-31/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to mistakes from day 1, it has always had semantics inconsistent with SVR4 and its successors. In particular, given argument M: - On Solaris and FreeBSD/{alpha,sparc64}, it clobbers the old flags and *sets* the new flag word to M. (NetBSD, too?) - On FreeBSD/{amd64,i386}, it *clears* the flags that are specified in M and leaves the remaining flags unchanged (modulo a small bug on amd64.) - On FreeBSD/ia64, it is not implemented. There is no way to fix fpsetsticky() to DTRT for both old FreeBSD apps and apps ported from other operating systems, so the best approach seems to be to kill the function and fix any apps that break. I couldn't find any ports that use it, and any such ports would already be broken on FreeBSD/ia64 and Linux anyway. By the way, the routine has always been undocumented in FreeBSD, except for an MLINK to a manpage that doesn't describe it. This manpage has stated since 5.3-RELEASE that the functions it describes are deprecated, so that must mean that functions that it is *supposed* to describe but doesn't are even *more* deprecated. ;-) Note that fpresetsticky() has been retained on FreeBSD/i386. As far as I can tell, no other operating systems or ports of FreeBSD implement it, so there's nothing for it to be inconsistent with. PR: 75862 Suggested by: bde
* Define LDBL_NBIT to be a mask indicating the position of the integerdas2005-03-071-0/+1
| | | | | | | | bit in a long double. For architectures that don't have such a bit, LDBL_NBIT is 0. This makes it possible to say `mantissa & ~LDBL_NBIT' in places that previously used an #ifdef to select the right expression. The optimizer should dispense with the extra arithmetic when LDBL_NBIT is 0.
* Update my email address.das2005-02-061-1/+1
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* Replace the ldexp() implementation in libc with a renamed copy of thedas2005-01-221-155/+0
| | | | | | | | | | | | | | | | scalbn() implementation from libm. (The two functions are defined to be identical, but ldexp() lives in libc for backwards compatibility.) The old ldexp() implementation... - was more complicated than this one - set errno instead of raising FP exceptions - got some corner cases wrong (e.g. ldexp(1.0, 2000) in round-to-zero mode) The new implementation lives in libc/gen instead of libc/$MACHINE_ARCH/gen, since we don't need N copies of a machine-independent file. The amd64 and i386 platforms retain their fast and correct MD implementations and override this one.
* Correct the values of FLT_ROUNDS for the FE_UPWARD and FE_DOWNWARD cases.das2005-01-181-2/+2
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* Eliminate gdtoa.mk and move its contents to ${MACHINE_ARCH}/Makefile.inc.das2005-01-152-5/+4
| | | | | The purpose of having a separate file involved an abandoned scheme that would have kept contrib/gdtoa out of the include path for the rest of libc.
* For variables that are only checked with defined(), don't provideru2004-10-241-1/+1
| | | | any fake value.
* Add support for TLS in statically linked programs.dfr2004-08-152-1/+36
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* s/round/fpround/ to avoid naming clash with GCC builtin function.kan2004-07-281-8/+8
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* Replace seven nominally MD implementations of frexp() that are brokendas2004-07-182-79/+1
| | | | for subnormals with one implementation that works.
* Implement the classification macros isfinite(), isinf(), isnan(), anddas2004-07-092-70/+1
| | | | | | | | | | | | | | | | | | | | | isnormal() the hard way, rather than relying on fpclassify(). This is a lose in the sense that we need a total of 12 functions, but it is necessary for binary compatibility because we have never bumped libm's major version number. In particular, isinf(), isnan(), and isnanf() were BSD libc functions before they were C99 macros, so we can't reimplement them in terms of fpclassify() without adding a dependency on libc.so.5. I have tried to arrange things so that programs that could be compiled in FreeBSD 4.X will generate the same external references when compiled in 5.X. At the same time, the new macros should remain C99-compliant. The isinf() and isnan() functions remain in libc for historical reasons; however, I have moved the functions that implement the macros isfinite() and isnormal() to libm where they belong. Moreover, half a dozen MD versions of isinf() and isnan() have been replaced with MI versions that work equally well. Prodded by: kris
* Use unions to avoid violating C99 strict aliasing rules.des2004-03-161-17/+14
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* Fix some aliasing problems.das2004-02-161-6/+14
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* style cleanup: Remove duplicate $FreeBSD$ tags.cperciva2004-02-101-2/+0
| | | | | | | | These files had tags after teh copyright notice, inside the comment block (incorrect, removed), and outside the comment block (correct). Approved by: rwatson (mentor)
* Add prototypes for the three syscall stubs that are invoked here,nectar2004-01-191-0/+4
| | | | in order to quiet warnings.
* Define LDBL_MANH_SIZE and LDBL_MANL_SIZE to be the sizes of thedas2004-01-181-0/+3
| | | | high and low words of the mantissa in bits, respectively.
* We need to discard `const'ness explicitly when invoking sysarch.nectar2004-01-101-1/+1
| | | | Reported by: sparc64 tinderbox via bde
* Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'mnectar2004-01-093-8/+3
| | | | | | | | | | at it, use the ANSI C generic pointer type for the second argument, thus matching the documentation. Remove the now extraneous (and now conflicting) function declarations in various libc sources. Remove now unnecessary casts. Reviewed by: bde
* Remove unused variables. Add required headers and functionnectar2004-01-067-6/+12
| | | | declarations.
* Install the user trap handlers that libc provides from a constructor, sojake2003-11-181-0/+2
| | | | | | | | that they will be installed before application constructors are invoked. Its possible to link applications such that this fails, application code is invoked before they are installed, but, well, Don't Do That. Approved by: re (jhb)
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