src/lib/libc/powerpc/gen/Makefile.inc, branch releng/10.4

Allow building for the PowerPC EABI by providing a dummy __eabi()

2012-05-24T20:12:46Z

function. The purpose of the __eabi() function is to set up the runtime and is called first thing by main(). The runtime is already set up for us prior to caling main, so there's nothing to do for us in the EABI case.

Add API for obtaining extended machine context states that cannot be

2012-01-21T18:00:28Z

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

Replace a proliferation of buggy MD implementations of modf() with a

2011-10-21T06:40:36Z

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.

Remove fpsetsticky(). This was added for SysV compatibility, but due

2005-03-15T15:53:39Z

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

Add support for TLS in statically linked programs.

2004-08-15T16:18:52Z

Add signalcontext, required by KSE.

2004-07-19T12:08:03Z

Replace seven nominally MD implementations of frexp() that are broken

2004-07-18T21:23:39Z

for subnormals with one implementation that works.

Implement the classification macros isfinite(), isinf(), isnan(), and

2004-07-09T03:32:40Z

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

makecontext lib call.

2004-03-02T06:22:24Z

Submitted by: Suleiman Souhlal

Add forgotten IEEE functions. The Perl 5.8 port now compiles.

2004-02-12T09:11:06Z

Submitted by: Suleiman Souhlal Obtained from: NetBSD