blob: e5a882cfbec38766129bad3162a0f23aa3e62986 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
This directory is only built if you specify "--with-newlib" at configure
time.
$ mkdir hurd-l4-build
$ cd hurd-l4-build
$ ../hurd-l4/configure [...] --with-newlib
$ make
Reentrancy
----------
newlib has a per-thread reentry structure. We store a pointer to this
structure in a thread's UTCB in slot _L4_UTCB_THREAD_WORD0. See
addon/newlib/libc/sys/hurd/getreent.c for details.
errno
-----
Getting newlib to use a different errno location from that in its
errno structure isn't easy: it's hard-wired all over the
implementation. Since the Hurd's run-time assigns to errno as well
(see libhurd-mm/mmap.c and libhurd-mm/sbrk), to ensure correctness,
they both need to use the same errno location. This requires that
libhurd-mm be compiled against Newlib's header files.
|
