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11 Commits

Author SHA1 Message Date
Andrew Turner
94098ab7c3 Remove brk and sbrk from arm64. They were defined in The Single UNIX 
Specification, Version 2, but marked as legacy, and have been removed from
later specifications. After 12 years it is time to remove them from new
architectures when the main use for sbrk is an invalid method to attempt
to find how much memory has been allocated from malloc.

There are a few places in the tree that still call sbrk, however they are
not used on arm64. They will need to be fixed to cross build from arm64,
but these will be fixed in a follow up commit.

Old copies of binutils from ports called into sbrk, however this has been
fixed around 6 weeks ago. It is advised to update binutils on arm64 before
installing a world that includes this change.

Reviewed by:	brooks, emaste
Obtained from:	brooks
Relnotes:	yes
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D6464
 2016-05-20 15:04:48 +00:00
Ed Maste
dae2d550d6 libc: stop exporting curbrk and minbrk in the private namespace 
They are not used anywhere else in the base system and are an internal
implementation detail that does not need to be exposed.

Reviewed by:	kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5728
 2016-03-24 18:47:19 +00:00
Andrew Turner
ccee502763 Add the definitions of __infinity and __nan. 2015-08-20 13:11:52 +00:00
Andrew Turner
249d5c7acc Add support for makecontext. This supports up to 8 arguments as this 
simplifies the code, these can be passed in registers.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2015-07-10 08:36:22 +00:00
Andrew Turner
1af1dde836 Add hton and ntoh to the arm64 Symbols.map file, they exist but were not 
exported.
 2015-07-06 09:57:40 +00:00
Andrew Turner
74735cf188 Cleanup brk and sbrk to use the same code to find curbrk and minbrk when 
both compiling for PIC and non-PIC.

Sponsored by:	ABT Systems Ltd
 2015-07-02 14:54:21 +00:00
Andrew Turner
93b86b2fb0 Implement fpgetmask, it's needed by Python. 
Approved by:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2015-06-25 08:22:25 +00:00
Andrew Turner
bbe1d59571 Export __flt_rounds from the arm64 libc.so 2015-06-25 08:15:47 +00:00
Andrew Turner
f36c0f6257 Implement fpsetmask. Some third-party software makes use of it, for example 
perl.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2015-06-24 16:18:58 +00:00
Ed Maste
e09e55dc82 Add fabs() to arm64 libc 
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D2532
 2015-05-14 17:12:45 +00:00
Andrew Turner
d422e6f9b5 Add the start of libc and libstand for arm64. Not all of the machine 
dependent functions have been implemented, but this is enough for world.

Differential Revision:	https://reviews.freebsd.org/D2132
Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
 2015-04-07 09:52:14 +00:00