272461 |
03-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
|
263763 |
26-Mar-2014 |
dim |
MFC r262613:
Merge the projects/clang-sparc64 branch back to head. This brings in several updates from the llvm and clang trunks to make the sparc64 backend fully functional.
Apart from one patch to sys/sparc64/include/pcpu.h which is still under discussion, this makes it possible to let clang fully build world and kernel for sparc64.
Any assistance with testing this on actual sparc64 hardware is greatly appreciated, as there will unavoidably be bugs left.
Many thanks go to Roman Divacky for his upstream work on getting the sparc64 backend into shape.
MFC r262985:
Repair a few minor mismerges from r262261 in the clang-sparc64 project branch. This is also to minimize differences with upstream.
|
261455 |
04-Feb-2014 |
eadler |
MFC r258779,r258780,r258787,r258822:
Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this shifts into the sign bit. Instead use (1U << 31) which gets the expected result.
Similar to the (1 << 31) case it is not defined to do (2 << 30).
This fix is not ideal as it assumes a 32 bit int, but does fix the issue for most cases.
A similar change was made in OpenBSD.
|
256281 |
10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
|
253266 |
12-Jul-2013 |
marius |
Prefix the alias macros for members of struct __mcontext with an underscore in order to avoid a clash in the net80211 code.
|
251047 |
28-May-2013 |
kib |
The getcontext() from the __fillcontextx() call in the check_deferred_signal() returns twice, since handle_signal() emulates the return from the normal signal handler by sigreturn(2)ing the passed context. Second return is performed on the destroyed stack frame, because __fillcontextx() has already returned. This causes undefined and bad behaviour, usually the victim thread gets SIGSEGV.
Avoid nested frame and the need to return from it by doing direct call to getcontext() in the check_deferred_signal() and using a new private libc helper __fillcontextx2() to complement the context with the extended CPU state if the deferred signal is still present.
The __fillcontextx() is now unused, but is kept to allow older libthr.so to be used with the new libc.
Mark __fillcontextx() as returning twice [1].
Reported by: pgj Pointy hat to: kib Discussed with: dim Tested by: pgj, dim Suggested by: jilles [1] MFC after: 1 week
|
246117 |
30-Jan-2013 |
kib |
Rework the __vdso_* symbols attributes to only make the symbols weak, but use normal references instead of weak. This makes the statically linked binaries to use fast gettimeofday(2) by forcing the linker to resolve references and providing the neccessary functions.
Reported by: bde Tested by: marius (sparc64) MFC after: 2 weeks
|
230864 |
01-Feb-2012 |
kib |
Make the sys/ucontext.h self-contained by changing the return type of __getcontextx_size(3) from size_t to int.
PR: ports/164654 MFC after: 1 month
|
230429 |
21-Jan-2012 |
kib |
Add API for obtaining extended machine context states that cannot be fit into existing mcontext_t.
On i386 and amd64 do return the extended FPU states using getcontextx(3). For other architectures, getcontextx(3) returns the same information as getcontext(2).
Tested by: pho MFC after: 1 month
|
230193 |
16-Jan-2012 |
das |
Computations on NaNs are supposed to return one of the input NaNs unchanged. Fix a few places in the sparc64 floating-point emulator where this wasn't being handled properly.
Submitted by: bde
|
226606 |
21-Oct-2011 |
das |
Replace a proliferation of buggy MD implementations of modf() with a working MI one. The MI one only needs to be overridden on machines with non-IEEE754 arithmetic. (The last supported one was the VAX.) It can also be overridden if someone comes up with a faster one that actually passes the regression tests -- but this is harder than it sounds.
|
226111 |
07-Oct-2011 |
ed |
Fix whitespace inconsistencies found in homegrown Symbol.maps.
|
221869 |
14-May-2011 |
attilio |
Disconnect sun4v architecture from the three.
Some files keep the SUN4V tags as a code reference, for the future, if any rewamped sun4v support wants to be added again.
Reviewed by: marius Tested by: sbruno Approved by: re
|
205410 |
21-Mar-2010 |
marius |
Avoid aliasing which leads to incorrect results when compiling with the default strict aliasing rules.
PR: 144900 Submitted by: Peter Jeremy MFC after: 3 days
|
205397 |
20-Mar-2010 |
marius |
- While SPARC V9 allows tininess to be detected either before or after rounding (impl. dep. #55), the SPARC JPS1 responsible for SPARC64 and UltraSPARC processors defines that in all cases tinyness is detected before rounding, therefore rounding up to the smallest normalised number should set the underflow flag. - If an infinite result is rounded down, the result should have an exponent 1 less than the value for infinity.
PR: 144900 Submitted by: Peter Jeremy MFC after: 3 days
|
205396 |
20-Mar-2010 |
marius |
Division should take both arguments' signs into account when the the dividend is infinity or zero and the divisor is not the same.
PR: 144900 Submitted by: Peter Jeremy MFC after: 3 days
|
205395 |
20-Mar-2010 |
marius |
FPU_DEBUG requires <stdio.h>.
PR: 144900 Submitted by: Peter Jeremy MFC after: 3 days
|
205394 |
20-Mar-2010 |
marius |
Ensure that __fpu_ftox() both returns the high bits and res[1] contains the low bits also in the default case.
PR: 144900 Obtained from: OpenBSD MFC after: 3 days
|
205393 |
20-Mar-2010 |
marius |
- Remove a bogus forward declaration. - Fix whitespace.
|
205002 |
11-Mar-2010 |
marius |
Fix a typo in r204974 so that FTYPE_LNG matches the initialisers of the opmask array.
Pointed out by: Peter Jeremy
|
204974 |
10-Mar-2010 |
marius |
- The OPSZ macro actually only does the right thing for int32 and int64 operands but not for double and extended double ones. Instead of trying to fix the macro just nuke it and unroll the loops in the correct way though as extended double operands turn out to be the only special case. - For FxTO{s,d,q} the source operand is int64 so rs2 has to be re-decoded after setting type accordingly as it's generally decoded using the low 2 bits as the type, which are 0 for these three instructions. - Similarly, in case of F{s,d,q}TOx the target is int64 so rd has to be re-decoded using not only the operand mask appropriate for int64 but also the correct register number encoding. - Use const where appropriate. - Wrap long lines.
Submitted by: Peter Jeremy (partly) MFC after: 3 days
|
204640 |
03-Mar-2010 |
joel |
The NetBSD Foundation has granted permission to remove clause 3 and 4 from their software.
Obtained from: NetBSD
|
194704 |
23-Jun-2009 |
ed |
Remove unneeded stdlib directories.
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
|
188031 |
02-Feb-2009 |
rdivacky |
Provide a type for the argument.
Approved by: kib (mentor)
|
184789 |
09-Nov-2008 |
ed |
Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4.
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
|
178139 |
12-Apr-2008 |
das |
Fix some bugs that caused sparc64's quad precision sqrt to get the wrong answer for virtually all inputs.
Thanks to remko for access to a sparc64 box for testing.
|
178138 |
12-Apr-2008 |
das |
Make the software emulator for long doubles set the FPU exception 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.
|
175459 |
18-Jan-2008 |
das |
Add a new union member to access the exponent and sign of a long double in a single op. Idea from bde.
|
174759 |
18-Dec-2007 |
das |
Since nan() is supposed to work the same as strtod("nan(...)", NULL), 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
|
174681 |
16-Dec-2007 |
das |
Export gdtoa's __ULto{x,Q}_D2A routine in a private namespace so libm can use it.
|
174680 |
16-Dec-2007 |
das |
Arrange so that the NaN returned by strtod("nan", NULL) is the same as the NaN returned by strtod("nan()", NULL).
|
174204 |
03-Dec-2007 |
das |
In scanf, round according to the current rounding mode.
|
173859 |
23-Nov-2007 |
jb |
Use an intermediate pointer to avoid a strict aliasing warning.
|
171218 |
04-Jul-2007 |
peter |
Classify mmap, lseek, pread, pwrite, truncate, ftruncate as pseudo 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)
|
171217 |
04-Jul-2007 |
peter |
Adjust the syscall stub macros to be consistent in their meaning. In 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)
|
170154 |
31-May-2007 |
deischen |
Some libc symbol map cleanups.
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
|
169488 |
11-May-2007 |
marius |
- Add bits for userland profiling. For sun4u this is compile-tested only. - Replace magic 14 with PIL_TICK.
|
169092 |
29-Apr-2007 |
deischen |
Use C comments since we now preprocess these files with CPP.
|
165903 |
09-Jan-2007 |
imp |
Per Regents of the University of Calfornia letter, remove advertising clause.
# If I've done so improperly on a file, please let me know.
|
165747 |
03-Jan-2007 |
das |
The distinction between quiet and signaling NaN formats is machine-dependent; these files tell the latest version of gdtoa what to do.
|
165529 |
24-Dec-2006 |
marius |
Fix a typo in __fpu_ftox() that caused long double to long (and long long) 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
|
164053 |
06-Nov-2006 |
cognet |
Instead of re-implementing hton[ls] and friends for each arch, add a new MI file, net/ntoh.c, which just implement them using the inline functions from <sys/endian.h>.
Suggested by: bde
|
163967 |
03-Nov-2006 |
kmacy |
- change ABI for user trap handler for sun4v (eventually will sync sparc64 no hardware set up to test at the moment)
Approved by: scottl (standing in for mentor rwatson)
|
163258 |
12-Oct-2006 |
kmacy |
fix bus error in newsyslog by making sure that fields in struct fpemu that are accessed as 8 byte quantities are 8 byte aligned
|
163118 |
08-Oct-2006 |
kmacy |
Fix TLS on sparc64 for statically and dynamically linked binaries Approved by: rwatson (mentor) Reviewed by: jmg and marcel
|
157791 |
16-Apr-2006 |
marius |
For _Qp_{fge,fgt,fle,flt}() the SCD states that "Exceptions mimic fcmpeq", this means they should set the cmpe flag when calling __fpu_compare().
Submitted by: stefanf MFC after: 2 weeks
|
157666 |
11-Apr-2006 |
marius |
- Move _Qp_* and __dtoul from FBSDprivate to the list of FBSD_1.0 symbols 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
|
156769 |
16-Mar-2006 |
ru |
Desupport the undocumented NO_QUAD option, just don't compile the quad support on 64-bit platforms.
|
156613 |
13-Mar-2006 |
deischen |
Add each directory's symbol map file to SYM_MAPS.
|
156608 |
13-Mar-2006 |
deischen |
Add symbol maps and initial symbol version definitions to libc.
Reviewed by: davidxu
|
147519 |
21-Jun-2005 |
stefanf |
Add the functions _Qp_cmp() and _Qp_cmpe() as described in the Sparc 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
|
146673 |
27-May-2005 |
stefanf |
Fix long (and long long) to long double, unsigned to long double and unsigned 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
|
143658 |
15-Mar-2005 |
das |
Remove fpsetsticky(). This was added for SysV compatibility, but due 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
|
143214 |
07-Mar-2005 |
das |
Define LDBL_NBIT to be a mask indicating the position of the integer 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.
|
141379 |
06-Feb-2005 |
das |
Update my email address.
|
140607 |
22-Jan-2005 |
das |
Replace the ldexp() implementation in libc with a renamed copy of the 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.
|
140424 |
18-Jan-2005 |
das |
Correct the values of FLT_ROUNDS for the FE_UPWARD and FE_DOWNWARD cases.
|
140279 |
15-Jan-2005 |
das |
Eliminate gdtoa.mk and move its contents to ${MACHINE_ARCH}/Makefile.inc. 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.
|
136910 |
24-Oct-2004 |
ru |
For variables that are only checked with defined(), don't provide any fake value.
|
133754 |
15-Aug-2004 |
dfr |
Add support for TLS in statically linked programs.
|
132755 |
28-Jul-2004 |
kan |
s/round/fpround/ to avoid naming clash with GCC builtin function.
|
132366 |
18-Jul-2004 |
das |
Replace seven nominally MD implementations of frexp() that are broken for subnormals with one implementation that works.
|
131852 |
09-Jul-2004 |
das |
Implement the classification macros isfinite(), isinf(), isnan(), and 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
|
127091 |
16-Mar-2004 |
des |
Use unions to avoid violating C99 strict aliasing rules.
|
125865 |
16-Feb-2004 |
das |
Fix some aliasing problems.
|
125669 |
10-Feb-2004 |
cperciva |
style cleanup: Remove duplicate $FreeBSD$ tags.
These files had tags after teh copyright notice, inside the comment block (incorrect, removed), and outside the comment block (correct).
Approved by: rwatson (mentor)
|
124722 |
19-Jan-2004 |
nectar |
Add prototypes for the three syscall stubs that are invoked here, in order to quiet warnings.
|
124653 |
18-Jan-2004 |
das |
Define LDBL_MANH_SIZE and LDBL_MANL_SIZE to be the sizes of the high and low words of the mantissa in bits, respectively.
|
124342 |
10-Jan-2004 |
nectar |
We need to discard `const'ness explicitly when invoking sysarch.
Reported by: sparc64 tinderbox via bde
|
124296 |
09-Jan-2004 |
nectar |
Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm 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
|
124182 |
06-Jan-2004 |
nectar |
Remove unused variables. Add required headers and function declarations.
|
122883 |
18-Nov-2003 |
jake |
Install the user trap handlers that libc provides from a constructor, so 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)
|
118771 |
11-Aug-2003 |
bms |
Add the mlockall() and munlockall() system calls. - All those diffs to syscalls.master for each architecture *are* necessary. This needed clarification; the stub code generation for mlockall() was disabled, which would prevent applications from linking to this API (suggested by mux) - Giant has been quoshed. It is no longer held by the code, as the required locking has been pushed down within vm_map.c. - Callers must specify VM_MAP_WIRE_HOLESOK or VM_MAP_WIRE_NOHOLES to express their intention explicitly. - Inspected at the vmstat, top and vm pager sysctl stats level. Paging-in activity is occurring correctly, using a test harness. - The RES size for a process may appear to be greater than its SIZE. This is believed to be due to mappings of the same shared library page being wired twice. Further exploration is needed. - Believed to back out of allocations and locks correctly (tested with WITNESS, MUTEX_PROFILING, INVARIANTS and DIAGNOSTIC).
PR: kern/43426, standards/54223 Reviewed by: jake, alc Approved by: jake (mentor) MFC after: 2 weeks
|
118655 |
08-Aug-2003 |
jake |
Implement signalcontext.
|
114839 |
08-May-2003 |
das |
Add a comment describing why it's important for the values in this file to be correct, and how to generate them automatically.
Caused much pain and suffering for: peter
|
113145 |
05-Apr-2003 |
das |
Add __ldtoa(), a wrapper around gdtoa() to make it look like dtoa(). In support of this, add some MD macros to assist in converting long doubles to the format expected by gdtoa().
Reviewed by: silence on standards@
|
112963 |
01-Apr-2003 |
jake |
Implement makecontext.
|
112163 |
12-Mar-2003 |
das |
Replace our ancient dtoa/strtod implementation with the gdtoa package, a more recent, generalized set of routines. Among the changes: - Declare strtof() and strtold() in stdlib.h. - Add glue to libc to support these routines for all kinds of ``long double''. - Update printf() to reflect the fact that dtoa works slightly differently now.
As soon as I see that nothing has blown up, I will kill src/lib/libc/stdlib/strtod.c. Soon printf() will be able to use the new routines to output long doubles without loss of precision, but numerous bugs in the existing code must be addressed first.
Reviewed by: bde (briefly), mike (mentor), obrien
|
110769 |
12-Feb-2003 |
mike |
o Implement C99 classification macros isfinite(), isinf(), isnan(), isnormal(). The current isinf() and isnan() are perserved for binary compatibility with 5.0, but new programs will use the macros. o Implement C99 comparison macros isgreater(), isgreaterequal(), isless(), islessequal(), islessgreater(), isunordered().
Submitted by: David Schultz <dschultz@uclink.Berkeley.EDU>
|
110566 |
08-Feb-2003 |
mike |
Implement fpclassify(): o Add a MD header private to libc called _fpmath.h; this header contains bitfield layouts of MD floating-point types. o Add a MI header private to libc called fpmath.h; this header contains bitfield layouts of MI floating-point types. o Add private libc variables to lib/libc/$arch/gen/infinity.c for storing NaN values. o Add __double_t and __float_t to <machine/_types.h>, and provide double_t and float_t typedefs in <math.h>. o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF, HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to <math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via <machine/float.h>. o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based on the size of its argument. __fpclassifyl() is never called on alpha because (sizeof(long double) == sizeof(double)), which is good since __fpclassifyl() can't deal with such a small `long double'.
This was developed by David Schultz and myself with input from bde and fenner.
PR: 23103 Submitted by: David Schultz <dschultz@uclink.Berkeley.EDU> (significant portions) Reviewed by: bde, fenner (earlier versions)
|
108738 |
05-Jan-2003 |
tmm |
Rewrite longjmp() and _longjmp() to directly restore the saved frame, instead of unwinding the call stack. This makes them usable to switch stacks, e.g. for libc_r. Do not save the frame pointer in setjmp() and _setjmp(), it is not needed any more. Rename _longjmp() to ___longjmp(), with a weak alias to _longjmp(), like the other architectures did.
|
108736 |
05-Jan-2003 |
tmm |
Rename siglongjmp() to __siglongjmp(), with a weak alias to siglongjmp(), like the other architectures do.
|
107052 |
18-Nov-2002 |
ru |
libc_r wasn't so tied to libc for 22 months.
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106268 |
31-Oct-2002 |
archie |
Re-apply the previously backed-out commit that fixes the problem where HUGE_VAL is not properly aligned on some architectures. The previous fix now works because the two versions of 'math.h' (include/math.h and lib/msun/src/math.h) have since been merged into one.
PR: bin/43544
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105709 |
22-Oct-2002 |
jake |
Rename the libc signal trampoline to __sigtramp to match netbsd. This should allow gdb to detect when we're executing in a signal trampoline.
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103686 |
20-Sep-2002 |
archie |
Revert previous commit to unbreak world until we figure out the right way to do it.
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103653 |
19-Sep-2002 |
archie |
Fix a problem with the definition of HUGE_VAL causing the gcc warning "cast increases required alignment of target type" on some platforms.
Reviewed by: bde
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103324 |
14-Sep-2002 |
tmm |
Use the macros from machine/fsr.h; some minor cleanups.
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103323 |
14-Sep-2002 |
tmm |
Add implementations of fpgetmask(), fpgetround(), fpgetsticky(), fpsetround(), fpsetsticky(), obtained from NetBSD and tweaked a little to use definitions from machine/fsr.h instead of magic numbers.
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103296 |
13-Sep-2002 |
tmm |
Add an implementation of fabs() (which is quite trivial). When it is called directly, gcc is smart enough to generate inline code for it, which is why it wasn't noticed before that it was missing.
fabs() would probably better fit into libm, but it has traditionally been in libc on FreeBSD, so there is probably software around that makes assumptions about this by now.
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102899 |
03-Sep-2002 |
jake |
Install the userland signal trampoline when sigaction is first called, instead of on startup. This fixes binary compatibility of dynamically linked binaries from before the signal code move.
Suggested by: wollman (a long time ago)
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102831 |
02-Sep-2002 |
jake |
Use FOO(a) for macros with variadic args, instead of FOO(a,) or FOO(a, ).
Submitted by: gcc3.2
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99773 |
11-Jul-2002 |
tmm |
Add missing ret instruction to the ptrace() syscall wrapper.
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99116 |
30-Jun-2002 |
obrien |
Use FBSDID
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99018 |
29-Jun-2002 |
obrien |
Use __FBSDID.
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99017 |
29-Jun-2002 |
obrien |
Add frexp(3).
Obtained from: OpenBSD
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98373 |
18-Jun-2002 |
jake |
Remove unneeded include of machine/emul.h.
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97823 |
04-Jun-2002 |
jake |
Implement _Qp_sqrt. I've been unable to find a C program that gcc generates a call to this for, but apparently somehing in libstdc++ does.
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97191 |
23-May-2002 |
jake |
Generate the normal asm stubs for all sysv system calls. Use these instead of C wrappers for the *sys indirect system calls. The indirect system calls are horribly broken on sparc64.
Submitted by: tmm
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96548 |
13-May-2002 |
jake |
Use the right byte order for unaligned stores. <blush>.
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96492 |
13-May-2002 |
jake |
Handle alignment fault fixups in libc rather than in the kernel.
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96422 |
11-May-2002 |
jake |
Add a support macro to convert the 5-bit packed register field of a floating point instruction into a 6-bit register number for double and quad arguments. Make use of the new INSFPdq_RN macro where apporpriate; this is required for correctly handling the "high" fp registers (>= %f32). Fix a number of bugs related to the handling of the high registers which were caused by using __fpu_[gs]etreg() where __fpu_[gs]etreg64() should be used (the former can only access the low, single-precision, registers).
Submitted by: tmm
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96129 |
06-May-2002 |
obrien |
Use __FBSDID
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96128 |
06-May-2002 |
obrien |
We typically don't add trailing /'s.
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95745 |
29-Apr-2002 |
jake |
Add an alternate signal trampoline to libc; add a wrapper for the sigtramp install sysarch, to be called from _start.
This will allow the stack to be mapped non-executable, as required by the sparc v9 abi.
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95604 |
28-Apr-2002 |
jake |
Add code to emulate arithmetic, comparison and conversion operations on long double, which are not implemented in hardware on any UltraSPARC chip that I know of. This just calls into the existing floating point emulator, which is still needed to emulate other floating point operations in certain conditions. Without this gcc has to generate the quad floating point instructions directly, which sometimes causes internal compiler errors.
Reviewed by: tmm
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95587 |
27-Apr-2002 |
jake |
Emulate ldq and stq (load/store long double) instructions. GCC has started using these to load long doubles, but they aren't implemented in hardware on (at least) UltraSPARC I and II machines. Emulate popc in the user trap handler as well. Re-arrange slightly to make support functions more accessible.
Reviewed by: tmm
|
94254 |
09-Apr-2002 |
jake |
Rename some fields in struct frame to be compatible with NetBSD/OpenBSD, and add some compatibility defines. Add fields for ins and locals to struct reg also for the same reason; these aren't filled in yet because getting at those registers sucks and I'd rather not save them in the trapframe just for this. Reorder struct reg to be ABI compatible as well. Add needed include of machine/emul.h.
This gets pmdb (poor man's debugger) from OpenBSD mostly compiling but it doesn't work yet :(
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93913 |
06-Apr-2002 |
tmm |
htonl() and ntohl() operate on unsinged types, so they must zero-extend, not sign-extend. Fix a comment in the former to that effect, and change the latter over to do the right conversion.
|
92991 |
22-Mar-2002 |
obrien |
Fix the style of the SCM ID's. I believe have made all of libc .h's as consistent as possible.
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92986 |
22-Mar-2002 |
obrien |
Fix the style of the SCM ID's. I believe have made all of libc .c's as consistent as possible.
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92942 |
22-Mar-2002 |
obrien |
SCM ID tweak.
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92905 |
21-Mar-2002 |
obrien |
Remove __P() usage.
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92889 |
21-Mar-2002 |
obrien |
Remove 'register' keyword.
|
92055 |
11-Mar-2002 |
tmm |
Fix some bugs that would prevent %fsr to be set correctly, and add support for fcmp and fcmpe instructions with a condition code specification other than %fcc0. This (primarily the first part) seems to fix a lot of problems that people were seeing, e.g. perl and gawk failures.
Reported and analyzed by: wollman
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92054 |
11-Mar-2002 |
tmm |
Account for <machine/fsr.h> no longer being usable for assembler code.
|
92053 |
11-Mar-2002 |
tmm |
Fix __dtoul to work on sparc64 (it used a half-way v8 stack layout), and make it PIC-aware.
|
92049 |
11-Mar-2002 |
tmm |
Save/restore the %y register around calls to the C user trap handler; gcc emits the deprecated sparc v8 instructions that use this register when optimizing for UltraSparc machines because they are apparetly faster then their v9 counterpars there.
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91663 |
05-Mar-2002 |
jake |
Add fpsetmask(). Needed to build miniperl.
Obtained from: netbsd
|
91662 |
05-Mar-2002 |
jake |
Fix a bug where siglongjmp would clobber the argument to return from sigsetjmp. It would return the value of the signal flag, instead.
Pointy hat to: jake
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91649 |
05-Mar-2002 |
tmm |
Connect the sparc64 userland fp emulator to the build.
|
91174 |
23-Feb-2002 |
tmm |
Add userland floating point emulator code for sparc64. This is a port of the (never committed) in-kernel version (with some optimizations and cleanups), which in turn was ported from NetBSD.
|
91160 |
23-Feb-2002 |
jake |
Fix wrong offsets. Add offsets for %fsr and %tstate.
Submitted by: tmm
|
91159 |
23-Feb-2002 |
jake |
Add space for %fsr and %tstate to utrapframe. Save them in the generic user trap entry code. Restore %asi and %ccr from the saved %tstate before returning to the trapping user code.
Submitted by: tmm
|
90868 |
18-Feb-2002 |
mike |
o Move NTOHL() and associated macros into <sys/param.h>. These are deprecated in favor of the POSIX-defined lowercase variants. o Change all occurrences of NTOHL() and associated marcros in the source tree to use the lowercase function variants. o Add missing license bits to sparc64's <machine/endian.h>. Approved by: jake o Clean up <machine/endian.h> files. o Remove unused __uint16_swap_uint32() from i386's <machine/endian.h>. o Remove prototypes for non-existent bswapXX() functions. o Include <machine/endian.h> in <arpa/inet.h> to define the POSIX-required ntohl() family of functions. o Do similar things to expose the ntohl() family in libstand, <netinet/in.h>, and <sys/param.h>. o Prepend underscores to the ntohl() family to help deal with complexities associated with having MD (asm and inline) versions, and having to prevent exposure of these functions in other headers that happen to make use of endian-specific defines. o Create weak aliases to the canonical function name to help deal with third-party software forgetting to include an appropriate header. o Remove some now unneeded pollution from <sys/types.h>. o Add missing <arpa/inet.h> includes in userland.
Tested on: alpha, i386 Reviewed by: bde, jake, tmm
|
88795 |
01-Jan-2002 |
jake |
Connect user trap code to the build.
|
88794 |
01-Jan-2002 |
jake |
Add libc side of user trap handling. Add support for handling floating point disabled traps mostly in userland for the simple single threaded case. Not yet enabled by default. Implement __sparc_utrap_install as specified by the sparc abi.
|
88614 |
29-Dec-2001 |
jake |
Make sure curbrk is well aligned.
|
88613 |
29-Dec-2001 |
jake |
Use jmpbuf offsets, not ucontext_t.
|
88612 |
29-Dec-2001 |
jake |
Add .register directives for gcc3. Adapt to jmpbuf no longer being a ucontext_t. Restore the context "by hand" in longjmp and call sigprocmask, instead of just using sigreturn.
|
88611 |
29-Dec-2001 |
jake |
__infinity is not const.
|
88610 |
29-Dec-2001 |
jake |
Add jmpbuf offsets. Remove ucontext offsets.
|
88609 |
29-Dec-2001 |
jake |
Add .register directives for gcc3. Adapt to jmpbuf no longer being a ucontext_t. Call abort if longjmperror returns.
|
88608 |
29-Dec-2001 |
jake |
Include utrap.h for soft trap types.
|
86562 |
19-Nov-2001 |
jake |
Actually build new files.
Forgotten by: jake
|
86536 |
18-Nov-2001 |
jake |
Need .type and .size here too.
|
86535 |
18-Nov-2001 |
jake |
Add more libc stuff.
Obtained from: netbsd
|
86534 |
18-Nov-2001 |
jake |
Catch up to jmpbuf changes. Define offsets used from assmebly language in another file so that it is easy to see what they are and keep them in sync with the headers (grafted from the kernel generated assym.s).
|
86533 |
18-Nov-2001 |
jake |
Remove fork and vfork wrappers. The kernel does the right thing.
|
86532 |
18-Nov-2001 |
jake |
Add .type and .size pseudo-ops to system call macros so that dynamic binaries will link. They must be used for weak symbols as well as strong ones.
|
85518 |
26-Oct-2001 |
jake |
Minimal libc for sparc64.
Reviewed by: obrien
|