Commit Graph

3622 Commits

Author SHA1 Message Date
Konstantin Belousov 4ac3ee88c7 sched.h: add CPU_EQUAL() for better compatibility with Linux
Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D32901
2022-06-22 10:15:26 +02:00
Mark Johnston 6070714e0f cpuset(9): Add CPU_FOREACH_IS(SET|CLR) and modify consumers to use it
This implementation is faster and doesn't modify the cpuset, so it lets
us avoid some unnecessary copying as well.  No functional change
intended.

This is a re-application of commit
9068f6ea697b1b28ad1326a4c7a9ba86f08b985e.

Reviewed by:	cem, kib, jhb
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32029
2022-06-22 10:15:26 +02:00
Mark Johnston 27e8401c46 bitset: Reimplement BIT_FOREACH_IS(SET|CLR)
Eliminate the nested loops and re-implement following a suggestion from
rlibby.

Add some simple regression tests.

Reviewed by:	rlibby, kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32472
2022-06-22 10:15:26 +02:00
Mark Johnston 96ddb4055e Revert "cpuset(9): Add CPU_FOREACH_IS(SET|CLR) and modify consumers to use it"
This reverts commit 9068f6ea697b1b28ad1326a4c7a9ba86f08b985e.

The underlying macro needs to be reworked to avoid problems with control
flow statements.

Reported by:	rlibby
2022-06-22 10:15:26 +02:00
Mark Johnston 112245b78f cpuset(9): Add CPU_FOREACH_IS(SET|CLR) and modify consumers to use it
This implementation is faster and doesn't modify the cpuset, so it lets
us avoid some unnecessary copying as well.  No functional change
intended.

Reviewed by:	cem, kib, jhb
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32029
2022-06-22 10:15:26 +02:00
Mark Johnston 37a3e59636 bitset(9): Introduce BIT_FOREACH_ISSET and BIT_FOREACH_ISCLR
These allow one to non-destructively iterate over the set or clear bits
in a bitset.  The motivation is that we have several code fragments
which iterate over a CPU set like this:

while ((cpu = CPU_FFS(&cpus)) != 0) {
	cpu--;
	CPU_CLR(cpu, &cpus);
	<do something>;
}

This is slow since CPU_FFS begins the search at the beginning of the
bitset each time.  On amd64 and arm64, CPU sets have size 256, so there
are four limbs in the bitset and we do a lot of unnecessary scanning.

A second problem is that this is destructive, so code which needs to
preserve the original set has to make a copy.  In particular, we have
quite a few functions which take a cpuset_t parameter by value, meaning
that each call has to copy the 32 byte cpuset_t.

The new macros address both problems.

Reviewed by:	cem, kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32028
2022-06-22 10:15:26 +02:00
Patrick Kelsey 7c03cdf47e iflib: Improve mapping of TX/RX queues to CPUs
iflib now supports mapping each (TX,RX) queue pair to the same CPU
(default), to separate CPUs, or to a pair of physical and logical CPUs
that share the same L2 cache.  The mapping mechanism supports unequal
numbers of TX and RX queues, with the excess queues always being
mapped to consecutive physical CPUs.  When the platform cannot
distinguish between physical and logical CPUs, all are treated as
physical CPUs.  See the comment on get_cpuid_for_queue() for the
entire matrix.

The following device-specific tunables influence the mapping process:
dev.<device>.<unit>.iflib.core_offset       (existing)
dev.<device>.<unit>.iflib.separate_txrx     (existing)
dev.<device>.<unit>.iflib.use_logical_cores (new)

The following new, read-only sysctls provide visibility of the mapping
results:
dev.<device>.<unit>.iflib.{t,r}xq<n>.cpu

When an iflib driver allocates TX softirqs without providing reference
RX IRQs, iflib now binds those TX softirqs to CPUs using the above
mapping mechanism (that is, treats them as if they were TX IRQs).
Previously, such bindings were left up to the grouptaskqueue code and
thus fell outside of the iflib CPU mapping strategy.

Reviewed by:	kbowling
Tested by:	olivier, pkelsey
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D24094
2022-06-22 10:15:26 +02:00
Ryan Libby fb0a5865e4 bitset: implement BIT_TEST_CLR_ATOMIC & BIT_TEST_SET_ATOMIC
That is, provide wrappers around the atomic_testandclear and
atomic_testandset primitives.

Submitted by:	jeff
Reviewed by:	cem, kib, markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D22702
2022-06-22 10:15:26 +02:00
D Scott Phillips 9d50b44689 bitset: expand bit index type to `long`
An upcoming patch to use the bitset macros for tracking vm page
dump information could conceivably need more than INT_MAX bits.
Expand the bit type to long so that the extra range is available
on 64-bit platforms where it would most likely be needed.

CPUSET_COUNT and DOMAINSET_COUNT are also modified to remain of
type `int`.

Reviewed by:	kib, markj
Approved by:	scottl (implicit)
MFC after:	1 week
Sponsored by:	Ampere Computing, Inc.
Differential Revision:	https://reviews.freebsd.org/D26190
2022-06-22 10:15:26 +02:00
D Scott Phillips 4c5b7bec97 bitset: add BIT_FFS_AT() for finding the first bit set greater than a start bit
Reviewed by:	kib
Approved by:	scottl (implicit)
MFC after:	1 week
Sponsored by:	Ampere Computing, Inc.
Differential Revision:	https://reviews.freebsd.org/D26128
2022-06-22 10:15:26 +02:00
Konstantin Belousov 5e7a2b174a Fix undefined behavior: left-shifting into the sign bit.
Reviewed by:	dim, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D22898
2022-06-22 10:15:26 +02:00
Ryan Libby de1380c36b bitset: rename confusing macro NAND to ANDNOT
s/BIT_NAND/BIT_ANDNOT/, and for CPU and DOMAINSET too.  The actual
implementation is "and not" (or "but not"), i.e. A but not B.
Fortunately this does appear to be what all existing callers want.

Don't supply a NAND (not (A and B)) operation at this time.

Discussed with:	jeff
Reviewed by:	cem
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D22791
2022-06-22 10:15:26 +02:00
Ryan Libby 96c645a0b1 bitset: avoid pessimized code when bitset size is not constant
We have a couple optimizations for when the bitset is known to be just
one word.  But with dynamically sized bitsets, it was actually more work
to determine the size than just to do the necessary computation.  Now,
only use the optimization when the size is known to be constant.

Reviewed by:	markj
Discussed with:	jeff
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D22639
2022-06-22 10:15:26 +02:00
Jeff Roberson a6bd733db9 Use a precise bit count for the slab free items in UMA.
This significantly shrinks embedded slab structures.

Reviewed by:	markj, rlibby (prior version)
Differential Revision:	https://reviews.freebsd.org/D22584
2022-06-22 10:15:26 +02:00
Sebastian Huber a13a044c17 RTEMS: Remove FreeBSD version tags 2022-06-22 10:14:38 +02:00
Sebastian Huber e84814b3e4 Regenerate configure and newlib.hin
In commit b0cb9f85ca the regeneration of the
configure and newlib.hin files was missing.
2022-06-21 08:56:33 +02:00
Sebastian Huber b0cb9f85ca Use global stdio streams for all configurations
The _REENT_GLOBAL_STDIO_STREAMS was introduced by commit
668a4c8722 in 2017.  Since then it was enabled by
default for RTEMS.  Recently, the option was enabled for Cygwin which
previously used an alternative implementation to use global stdio streams.

In Newlib, the stdio streams are defined to thread-specific pointers
_reent::_stdin, _reent::_stdout and _reent::_stderr.  If the option is disabled
(the default for most systems), then these pointers are initialized to
thread-specific FILE objects which use file descriptors 0, 1, and 2,
respectively.  There are at least three problems with this:

(1) The thread-specific FILE objects are closed by _reclaim_reent().  This
    leads to problems with language run-time libraries that provide wrappers to
    the C/POSIX stdio streams (for example C++ and Ada), since they use the
    thread-specific FILE objects of the initialization thread.  In case the
    initialization thread is deleted, then they use freed memory.

(2) Since thread-specific FILE objects are used with a common output device via
    file descriptors 0, 1 and 2, the locking at FILE object level cannot ensure
    atomicity of the output, e.g. a call to printf().

(3) There are resource managment issues, see:

    https://sourceware.org/pipermail/newlib/2022/019558.html

    https://bugs.linaro.org/show_bug.cgi?id=5841

This patch enables the _REENT_GLOBAL_STDIO_STREAMS behaviour for all Newlib
configurations and removes the option.  This removes a couple of #ifdef blocks.
2022-06-10 20:13:52 +02:00
Sebastian Huber c4d4439c42 Fix __fp_lock_all() and __fp_unlock_all()
For _REENT_GLOBAL_STDIO_STREAMS, lock/unlock all FILE objects.  In the
repository, this function is only used by Cygwin during process forks.  Since
Cygwin enabled _REENT_GLOBAL_STDIO_STREAMS recently, without this fix no FILE
object at all was locked.
2022-06-10 20:13:52 +02:00
Sebastian Huber 866f6c909f Clarify struct _reent comment 2022-06-08 10:42:31 +02:00
Sebastian Huber 14fc9be234 Fix __sglue inititialization
Do not initialize __sglue with the FILE objects of _GLOBAL_REENT to avoid a
double use in the !_REENT_SMALL and !_REENT_GLOBAL_STDIO_STREAMS configurations
which didn't use a thread-specific reentrancy structure.
2022-06-07 21:28:25 +02:00
Ken Brown 2d9b48760c Cygwin: simplify some function names
Remove "32" or "64" from each of the following names: acl32,
aclcheck32, aclfrommode32, aclfrompbits32, aclfromtext32, aclsort32,
acltomode32, acltopbits32, acltotext32, facl32, fchown32, fcntl64,
fstat64, _fstat64, _fstat64_r, ftruncate64, getgid32, getgrent32,
getgrgid32, getgrnam32, getgroups32, getpwuid32, getpwuid_r32,
getuid32, getuid32, initgroups32, lseek64, lstat64, mknod32, mmap64,
setegid32, seteuid32, setgid32, setgroups32, setregid32, setreuid32,
setuid32, stat64, _stat64_r, truncate64.

Remove prototypes and macro definitions of these names.

Remove "#ifndef __INSIDE_CYGWIN__" from some headers so that the new
names will be available when compiling Cygwin.

Remove aliases that are no longer needed.

Include <unistd.h> in fhandler_clipboard.cc for the declarations of
geteuid and getegid.
2022-05-29 17:45:52 -04:00
jdoubleu e93bb6f985 Add test cases for parser errors after reworked parsing behavior. 2022-05-27 11:42:49 -04:00
Jeff Johnston 2dbdf66b91 Modify tzset_r.c to handle errors
- change __tzset_r so errors end up setting the timezone to
  unnamed UTC
2022-05-27 11:05:11 -04:00
Sebastian Huber 03e815a91b Use weak reference for _REENT_SMALL
Avoid a strong reference to __sfp[] for _impure_data.  The __sfp[] is linked in
if __sinit() is used for example.
2022-05-19 19:01:49 +02:00
Sebastian Huber 382550072b Fix __sFILE::_lock initialization
The __sFILE::_lock member is present if __SINGLE_THREAD__ is not defined.  In
this case, it is initialized in __sfp().  It is a bug to do it sometimes also
in std().
2022-05-19 19:01:49 +02:00
Jia-Wei Chen 12d07e1ddd newlib: libc: reent.h: remove unnecessary parentheses
The compiler warns the double parentheses are unnecessary in some
target, and cause fail cases when doing some testcases in regression.

gcc/testsuite/g++.dg/warn/Wstringop-overflow-6.C

Remove the unnecessary parentheses will fix it. See more details in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85775

Same like in commit 0542583129,
Author: Maxim Blinov <maxim.blinov@embecosm.com>
Date:   Thu Jul 22 22:41:42 2021 +0100

     Remove unneccesary parenthesis around declarator

Thanks for Sebastian Huber's remind!
2022-05-18 12:37:27 +02:00
Sebastian Huber 2faeaf50fd Use global atexit data for all configurations
For the exit processing only members of _GLOBAL_REENT were used by default.  If
the _REENT_GLOBAL_ATEXIT option was enabled, then the data structures were
provided through dedicated global objects.  Make this option the default.
Remove the option.  Rename struct _reent members _atexit and _atexit0 to
_reserved_6 and _reserved_7, respectively.  Provide them only if
_REENT_BACKWARD_BINARY_COMPAT is defined.
2022-05-18 07:45:09 +02:00
Sebastian Huber 9035e406cb Optional struct _reent::_new::_unused
Rename struct _reent::_new::_unused members _nextf and _nmalloc to _reserved_3
and _reserved_4, respectively.   Rename struct _reent::_new member _unused to
_reserved_5.  Provide them only if _REENT_BACKWARD_BINARY_COMPAT is defined.

Remove unused _N_LISTS define.
2022-05-18 07:45:09 +02:00
Sebastian Huber 84d8b9d1b3 Optional struct _reent::_new::_reent::_unused_rand
Rename struct _reent member _unused_rand to _reserved_2.  Provide it only if
_REENT_BACKWARD_BINARY_COMPAT is defined.
2022-05-18 07:45:09 +02:00
Sebastian Huber 00e467bec7 Optional struct _reent::_unspecified_locale_info
Rename struct _reent member _unspecified_locale_info to _reserved_1.  Provide
it only if _REENT_BACKWARD_BINARY_COMPAT is defined.
2022-05-18 07:45:09 +02:00
Sebastian Huber ad6d271eb6 Optional struct _reent::__unused_sdidinit
Rename struct _reent member __unused_sdidinit to _reserved_0.  Provide it only
if _REENT_BACKWARD_BINARY_COMPAT is defined.
2022-05-18 07:45:09 +02:00
Sebastian Huber 065d77dd02 Add --enable-newlib-reent-binary-compat
Add the --enable-newlib-reent-binary-compat configure option.  This option is
disabled by default.  If enabled, then unused members in struct _reent are
preserved to maintain the structure layout.
2022-05-18 07:45:09 +02:00
Sebastian Huber 5c7af4227d Use right lock release in __register_exitproc() 2022-05-18 07:45:09 +02:00
Sebastian Huber e826fbb2ae Fix stdio exit handling
Make sure that the stdio exit handler is set in all stdio initialization paths.

The bug was introduced by commit 26747c47bc.
2022-05-17 15:04:12 +02:00
Sebastian Huber 5bf4e0030e newlib: Regenerate Makefile.in
Regenerate Makefile.in to include changes in Makefile.am of commit
81b7cf09fa.
2022-05-16 07:18:29 +02:00
Sebastian Huber 01c823efb7 Make cleanup_glue() static
Remove cleanup_glue from the list of symbols exported by Cygwin.
2022-05-13 12:47:29 +02:00
Matt Joyce 0a862d1319 Remove __sglue member for one configuration
Remove __sglue member of struct reent when _REENT_GLOBAL_STDIO_STREAMS is
defined.
2022-05-13 12:47:29 +02:00
Matt Joyce 8b96542ed1 Add global __sglue object for all configurations
Added a new global __sglue object for all configurations.
Decouples the global file object list from the _GLOBAL_REENT
structure by using this new object instead of the __sglue member
of _GLOBAL_REENT in __sfp() and _fwalk_sglue().
2022-05-13 12:41:10 +02:00
Sebastian Huber 3941c8a88a stdio: Replace _fwalk_reent() with _fwalk_sglue()
Replaced _fwalk_reent() with _fwalk_sglue(). The change adds an
extra __sglue object as a parameter, which will allow the passing
of a global __sglue object separate from the __sglue member of
struct _reent. The global __sglue object will be added in a
follow-on patch.
2022-05-13 12:40:10 +02:00
Matt Joyce 26747c47bc Add stdio_exit_handler()
Add a dedicated stdio exit handler to avoid using _GLOBAL_REENT in exit().
2022-05-13 12:35:00 +02:00
Matt Joyce 4b28f3c125 Add CLEANUP_FILE define
Define the configuration-dependent constant CLEANUP_FILE for use in
cleanup_stdio(). This will reduce duplicate code during the addition
of a dedicated stdio atexit handler in a follow-on patch.
2022-05-13 12:32:38 +02:00
Matt Joyce a7bdda0503 Move __sglue initializations to __sfp()
Moved last remaining  __sglue initializations from __sinit() to
__sfp(). The move better encapsulates access to __sglue and
facilitates its decoupling from struct _reent in a follow-on patch.
2022-05-13 12:32:38 +02:00
Matt Joyce d83aa402b7 Remove __sinit_locks / __sinit_recursive_mutex
Remove __sinit_lock_acquire() and __sinit_lock_release().  Replace these with
__sfp_lock_acquire() and __sfp_lock_release(), respectively.  This eliminates a
potential deadlock issue between __sinit() and __sfp().  Remove now unused
__sinit_recursive_mutex and __lock___sinit_recursive_mutex.
2022-05-13 12:31:56 +02:00
Matt Joyce e5e36867f8 Add two __sglue initialization macros
Added _REENT_INIT_SGLUE and _REENT_INIT_SGLUE_ZEROED macros
to initialize __sglue member of struct _reent. This allows
further simplification of __sinit() and facilitates the removal
of __sglue as a member of struct _reent for certain configurations
in a follow-on patch.
2022-05-13 12:28:34 +02:00
Sebastian Huber d041db3792 Declare global __sf[] only once
Reduced number of global __sf[] declarations from two to one,
simplifying initializations in sys/reent.h.
2022-05-13 12:28:34 +02:00
Matt Joyce 92896d4daa Remove duplicate sglue initializations
Removed duplicate sglue initializations from __sinit(). These
are already initialized in the _REENT_INIT macro in sys/reent.h.
This simplification enables the reduction of _GLOBAL_REENT
dependency in a follow-on patch.
2022-05-13 12:28:34 +02:00
Matt Joyce 5a066d46c9 Remove duplicate stdio initializations
Removed duplicate stdio initializations from __sinit(). These
are already initialized in the _REENT_INIT macro in sys/reent.h.
This simplification enables the reduction of _GLOBAL_REENT
dependency in a follow-on patch.
2022-05-13 12:28:34 +02:00
Jon Turney 323b61f271 Generate manpages for functions in chapter sys.tex
Also generate manpages for functions in chapter sys.tex, omitted in
error.
2022-05-04 17:06:19 -04:00
Jon Turney a9d2d7baae Fix warning about duplicate id in docbook XML
../newlib/libc/libc.xml:22242: element refentry: validity error : ID iconv already defined
    <refentry id="iconv">

Use a separate namespace for chaper ids, to avoid collision between the
ids for the chapter and function 'iconv', now that iconv documentation
is generated unconditionally.
2022-05-04 17:06:07 -04:00
Jon Turney 81b7cf09fa Silence xsltproc when writing manpages
Unless make is invoked with V=1, have xmlto pass the parameter
'man.output.quietly=1' to xsltproc to suppress "Note: Writing foo.N"
output from the manpages stylesheet.

(This doesn't quite do what it says: The output is not silenced if V has
any value, including 0.  You could consider that either a bug or a
feature.)
2022-05-04 17:05:52 -04:00
Jon Turney d51aab2abd Add build avoidance for 'make man'
This will generate multiple manpage files as an output, but we don't
know what they will be called, so use a timestamp for build avoidance.
2022-05-04 17:05:41 -04:00
Jon Turney 3d64a500f1 Simplify rules for creating man pages
Simplify rules for creating docbook XML used to create manpages:
Updating the output using move-if-change and then unconditionally
touching the .stamp file doesn't make much sense.
2022-05-04 17:05:24 -04:00
Dimitar Dimitrov 5cad308baa Fix ndbm.c build break
The ndbm.c build broke with:
  Commit 357d7fcc6
  In <stdio.h> provide only necessary types

The above commit exposed a latent missing-header bug:
  newlib/newlib/libc/include/ndbm.h:83:38: error: unknown type name ‘mode_t’

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
2022-05-04 13:08:10 -04:00
Dimitar Dimitrov 90a4ab5eb1 Fix nano-malloc build
The nano malloc build broke with:
  Commit 357d7fcc6
  In <stdio.h> provide only necessary types

The above commit exposed a latent missing-header bug:
  newlib/libc/stdlib/nano-mallocr.c:220:33: error: ‘uintptr_t’ undeclared (first use in this function)

Fix by including <stdint.h>.

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
2022-05-04 12:49:55 -04:00
Sebastian Huber ad51d0006a Remove _global_impure_ptr indirection
Remove the pointer indirection through the read-only _global_impure_ptr and
directly use a externally visible _impure_data object of type struct _reent.
This enables the static initialization of global data structures in a follow up
patch.  In addition, we get rid of a machine-specific file.
2022-05-04 17:31:04 +02:00
Sebastian Huber 357d7fcc6a In <stdio.h> provide only necessary types 2022-05-04 15:08:53 +02:00
Corinna Vinschen a404165959 Revert "sys/types.h: Don't include sys/_stdint.h"
This reverts commit 4232d171a6.
2022-05-04 15:08:44 +02:00
Corinna Vinschen 4232d171a6 sys/types.h: Don't include sys/_stdint.h
By including sys/_stdint.h, all types from stdint.h are
exposed even if stdint.h isn't pulled in explicitely. Include
<machine/_default_types.h instead. Fix up newlib and Cygwin
files which rely on stdint.h types, too.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-05-03 18:58:18 +02:00
Andrea Corallo 27f0913c17 Aarch32/64: Support __FLT_EVAL_METHOD__ values other than 0, 1, 2
2022-03-30  Andrea Corallo  <andrea.corallo@arm.com>

	* libc/include/machine/ieeefp.h (__FLOAT_TYPE, __DOUBLE_TYPE): New
	macros.
	* libc/include/math.h: Uses __DOUBLE_TYPE __FLOAT_TYPE to define
	double_t float_t if possible.
2022-04-11 12:00:16 -04:00
Jeff Johnston db1fbbc495 Add tests for tzset POSIX timezone string compliance
- patch from jdbouleu <hi@jdoubleu.de>

  - create time.exp and tzset.c files in newlib/testsuite/newlib.time
2022-04-08 17:19:16 -04:00
Jeff Johnston 539ac66ffa Add angle TZ angle bracket support to tzset_r
- from Brian Inglis <Brian.Inglis@systematicsw.ab.ca>

  - add support to _tzset_unlocked_r() to support quoting std and dst
    names with angle brackets <> as per Posix
  - modify documentation of tzset.c
2022-04-08 15:10:50 -04:00
jdoubleu 2c157e7e23 fix testsuite cannot compile tests
DEJAGNU could not find the function 'newlib_target_compile', because it was defined in another file.
2022-04-07 11:27:40 -04:00
Sebastian Huber bd95aa4d33 newlib: Remove superfluous CHECK_STD_INIT() macro
This macro is unused or expands to nothing.
2022-04-01 18:17:59 +02:00
Matt Joyce aac414986f Remove unused _cleanup()
Removed the unused function _cleanup() from findfp.c.
2022-04-01 15:42:32 +02:00
Matt Joyce a160ee29e5 Fix bug introduced in previous patch (44b60f0c)
This fixes a bug introduced in a previous patch (Commit 44b60f0c:
Make __sdidinit unused). Removed intitialization of __cleanup from
__smakebuf_r(). All callers of __smakebuf_r() call __sinit()
through the_CHECK_INIT macro, thus __cleanup is already
initialized. This fix also allows _cleanup_r() to be made static.
Changed its name to cleanup_stdio() and removed its declaration
from local.h.
2022-04-01 15:42:32 +02:00
Sebastian Huber 3c722c8022 newlib: Rename __sfmoreglue() and make it static
Rename __sfmoreglue() in sfmoreglue() and make it static.  This function is
only used by __sfp() in the same translation unit.

Remove use of register keyword.
2022-03-31 07:54:04 +02:00
Sebastian Huber 7a5903078d Replace _fwalk() calls with _fwalk_reent()
Remove the _fwalk() implementation to avoid duplicated code with
_fwalk_reent().
2022-03-31 07:54:04 +02:00
Jeff Johnston 0239bc706a Commit patch from Tobias Burnus <tobias@codesourcery.com>
[PATCH] newlib: Only call _fputwc_r if ELIX_LEVEL >= 4

(nano-)vfprintf.c is enabled for ELIX_LEVEL >= 1. When _WIDE_ORIENT
is set, its __sprint_r / __sfputs_r functions unconditionally called
_fputwc_r which is only in ELEX_LEVEL >= 4. With this commit,
the _WIDE support in (nano-)vfprintf.c is disabled for ELEX_LEVEL < 4.
2022-03-30 15:58:06 -04:00
Mike Frysinger be9c0561e7 newlib: drop phoenix support
This code has not been updated since 2016, and it looks like it has
rotted quite a bit since.  It does not build against the current set
of phoenix sources -- I had to hack both the kernel headers and the
newlib headers up to get it to build, and I still have no idea if it
actually links or runs.  It seems like the project itself has moved
away from newlib and to its own C library:
https://phoenix-rtos.com/documentation/libc/README.md

So since there's no interest from the phoenix folks to maintain this,
and it has a significant amount of non-standard code that we try to
keep up-to-date (without actually testing it), just punt it all.
2022-03-28 23:17:06 -04:00
Andrew Stubbs 761ef3b434 amdgcn: Fix build failure
The recent makefile reorganization broke the amdgcn port by creating
duplicate __malloc_lock symbols.  This patch fixes the problem by renaming
the malloc_support.c file to mlock.c, thus overriding the default symbol
properly.  Actually, I'm not sure how this ever worked?
2022-03-22 21:45:16 -04:00
Sebastian Huber 64b208103d iconv: Fix EL/IX level 2 handling
Consistently use

	if !ELIX_LEVEL_1

to enable EL/IX level 2 interfaces.
2022-03-21 11:32:59 +01:00
Jeff Law 0c8679e080 Avoid using common symbols in v850 libgloss
I've had this lying around for probably a year or two at this point.
It just changes all the instance of "errno" from a common symbol to an
extern.  I can't offhand recall where the actual definition is, but it
certainly exists in the generic code.
2022-03-19 20:01:33 -04:00
Mike Frysinger d88cbd0e7c newlib: enable automatic dependency generation
This was disabled as part of the migration away from the cygnus option
as that implied no-dependencies.

We currently have 1-to-1 updates enabled -- if you touch a .c file,
the corresponding .o file will be rebuilt.  But if you touch a header
file, none of the files using that get rebuilt.
2022-03-17 20:38:17 -04:00
Mike Frysinger fb42151a18 newlib: libm: integrate tests subdir
Integrate the old libm/test/ subdir into the main build.  It hasn't
been used in a long time causing the code to rot a bit.  I've fixed
some of those, but it still fails for many ports, so it's disabled
by default.  People who want to take a closer look can run:
$ make libm/test/test
2022-03-16 22:01:19 -04:00
Mike Frysinger 958833a0d3 newlib: integrate iconv update to maintainer build
To help prevent people from missing running this script, integrate it
into the build via maintainer mode.

Also fix the inverted exit status to make this work correctly -- for
some reason, it exited 1 when it worked, and 0 when it failed.
2022-03-16 21:59:57 -04:00
Mike Frysinger f2471da7db newlib: update build system generation documentation
Replace all of the individual autotool steps with a single autoreconf.
This simplifies the documentation greatly, and in the current system,
only takes ~10 seconds to regenerate everything.

Update the developer documentation to cover all the major components
of the current build system.  Hopefully this is a fairly complete road
map to everything.  I tried to include everything that I wish I knew
when I started hacking on this :P.
2022-03-16 21:59:09 -04:00
Mike Frysinger 96bc16f6b2 newlib: libc: merge build up a directory
Convert all the libc/ subdir makes into the top-level Makefile.  This
allows us to build all of libc from the top Makefile without using any
recursive make calls.  This is faster and avoids the funky lib.a logic
where we unpack subdir archives to repack into a single libc.a.  The
machine override logic is maintained though by way of Makefile include
ordering, and source file accumulation in libc_a_SOURCES.

There's a few dummy.c files that are no longer necessary since we aren't
doing the lib.a accumulating, so punt them.

The winsup code has been pulling the internal newlib ssp library out,
but that doesn't exist anymore, so change that to pull the objects.
2022-03-16 21:18:25 -04:00
Mike Frysinger b2d4dc167c newlib: xstormy16: move malloc multiplex logic from build to source files
Rather than define per-object rules in the Makefile, have small files
that define & include the right content.  This simplifies the build
rules, and makes understanding the source a little easier (imo) as it
makes all the subdirs behave the same: you have 1 source file and it
produces 1 object.  It's also about the same amount of boiler plate,
without having to define custom build rules that can fall out of sync.

We also realign the free & pvalloc definitions: common code puts these
in malloc.o & valloc.o respectively, not in free.o & pvalloc.o objects.

This will also be important as we merge the libc.a build into the top
dir since it relies on a single flat list of objects for overrides.
2022-03-13 17:12:03 -04:00
Mike Frysinger 8c383e9ae7 newlib: xstormy16: break up mallocr stubs
Move the multiplex logic out of the build and into source files to
make the build rules a lot simpler.
2022-03-13 17:12:03 -04:00
Mike Frysinger 5cd957ff66 newlib: xstormy16: fix mallopt definition & mstats handling
The mallopt symbol is defined in tiny-malloc.c, not mallocr.c, but
the Makefile in here tries to compile it out of the latter.  This
leads to mallopt never being defined.

The build also creates mallinfo.o & mallopt.o & mallstats.o objects
to override common ones, but the common dir doesn't use these names.
Instead, it places these all in mstats.o.

So move the build define logic to a dedicated file and compile it
directly to make things a bit simpler while fixing the missing func
and aligning objects with the cmomon code.
2022-03-13 17:12:03 -04:00
Mike Frysinger 4ad6b4d4df newlib: libc: move stdlib multiplex logic from build to source files
Rather than define per-object rules in the Makefile, have small files
that define & include the right content.  This simplifies the build
rules, and makes understanding the source a little easier (imo) as it
makes all the subdirs behave the same: you have 1 source file and it
produces 1 object.  It's also about the same amount of boiler plate,
without having to define custom build rules that can fall out of sync.

This will also be important as we merge the libc.a build into the top
dir since it relies on a single flat list of objects for overrides.

Also take the opportunity to clean up the unnecessary header deps in
here.  Automake provides dependency generation for free now.
2022-03-09 16:58:46 -05:00
Sebastian Huber 332df71d34 build: Avoid length() awk function
Some awk implementations such as old versions of mawk do not support the
length() function.  Use the return value of the POSIX split() function instead.
2022-03-09 12:04:11 +01:00
Mike Frysinger b1b44f777c newlib: rename mallocr.c to _mallocr.c
This file is a little confusing: it provides all of the mallocr logic,
but is compiled multiple times to produce a unique symbol each time.
For example, building mallocr.c with -DDEFINE_FREER produces freer.o
that only defines _free_r().  This is fine for most symbols, but it's
a little confusing when defining mallocr itself -- we produce a file
with the same symbol name, but we still need -DDEFINE_MALLOCR.  In
order to move the logic from the build rules to source files, using
mallocr.c both as a multiplexer and for defining a single symbol is a
bit tricky.  It's possible (if we add a lot of redundant preprocessor
checks to mallocr.c, or we add complicated build flags just for this
one files), but it's easier if we simply rename this to a dedicated
file.  So let's do that.

We do this as a dedicated commit because the next one will create a
new mallocr.c file and git's automatic diff algorithms can handle
trivial renames, but it can't handle renames+creates in the same
commit.
2022-03-09 04:12:46 -05:00
Mike Frysinger d7b16b0576 newlib: move nano-malloc logic from build to source files
Simplify the build system logic a bit by moving the mallocr.c ->
nano-mallocr.c redirection from the Makefile to the source files.
This allows for consistent object name usage regardless of the
configuration options used in case a machine dir wants to define
its own override.
2022-03-09 04:12:45 -05:00
Jeff Johnston 5fca4e0f18 Fix Bug libc/28945
- apply fix from Tom de Vries <vries@gcc.gnu.org>
  to have calloc zero out storage for nvptx calloc function
2022-03-07 15:35:02 -05:00
Mike Frysinger dea52d5c1e newlib: convert INTERNAL_NEWLIB to _LIBC
Since we already set up _LIBC to indicate source files are building
for newlib, we don't need this malloc-specific symbol.  Convert it
over to simplify the build a bit.
2022-03-01 20:30:32 -05:00
Mike Frysinger e15b2e8691 newlib: drop redundant AM_MAINTAINER_MODE call
This is already called earlier in this file, so no need to do it again.
2022-03-01 20:30:05 -05:00
Mike Frysinger 644e8bba07 newlib: xstormy16: add missing string.h include
Some of these functions are using memcpy & memset from string.h but
not including the header leading to implicit declaration warnings.
2022-03-01 01:14:33 -05:00
Mike Frysinger a531ad9726 newlib: speed up targ-include setup & add error checking
The current targ-include setup runs `cp` every header file it installs,
in serial.  This can be a little noticeable on systems, so cleanup the
logic to rely on cp's ability to copy multiple files to a directory in
a single call.

We still need a check for empty directories with no headers (i.e. the
glob doesn't match anything), so add a helper variable to contain that
logic to reduce the boiler plate a little.
2022-02-28 19:07:22 -05:00
Mike Frysinger 28724b2f62 newlib: libc: move stdio multiplex logic from build to source files
Rather than define per-object rules in the Makefile, have small files
that define & include the right content.  This simplifies the build
rules, and makes understanding the source a little easier (imo) as it
makes all the subdirs behave the same: you have 1 source file and it
produces 1 object.  It's also about the same amount of boiler plate,
without having to define custom build rules that can fall out of sync.
Some of these rules were already unnecessary as they were compiling a
single source file into the same named object w/out custom flags, and
Automake handles that for us completely.

This will also be important as we merge the libc.a build into the top
dir since it relies on a single flat list of objects for overrides.

Also take the opportunity to clean up the unnecessary header deps in
here.  Automake provides dependency generation for free now.
2022-02-28 19:04:11 -05:00
Mike Frysinger ec5ea6efae newlib: simplify header setup rules
Since POSIX cp requires copying a file to a directory without having
to specify the name explicitly, rely on that to avoid calling basename
on every source file.

We can also drop the stub `true` call if the -f test failed.  The use
of `if` already takes care of that in POSIX shell.
2022-02-28 19:03:57 -05:00
Mike Frysinger 8343db918f newlib: libc: move configure into top-level
This kills off the last configure script under libc/ and folds it
into the top newlib configure script.  The a lot of the logic was
already in the top configure script, so move what's left into a
libc/acinclude.m4 file.
2022-02-25 13:52:48 -05:00
Mike Frysinger 85f2dca52d newlib: add silent rules support to top-level rules 2022-02-24 19:14:12 -05:00
Mike Frysinger acf642177b newlib: fix multilib libg.a parallel builds
I split libg.a out into a sep target from libc.a for the main dir in
commit f2b053f49e ("newlib: separate out
libg from libc"), but missed the multilib dirs.  That leads to an
uncommon parallel build failure:
- libc.a rule runs & finishes
- $(BUILD_MULTISUBDIR)/libc.a rule runs
  -> failure due to libg.a not yet existing
- libg.a rule runs & finishes

Split the multilib libg rule out from libc too so it can depend on the
main libg directly and avoid this race.
2022-02-23 22:01:05 -05:00
Mike Frysinger 5ad394510b newlib: libm: workaround ar duplicate member behavior
GNU ar has undocumented behavior where it doesn't dedupe its inputs if
they're all on the same command line, so we have to dedupe ourselves.
2022-02-23 20:07:10 -05:00
Matt Joyce 44b60f0c4b Make __sdidinit unused
Remove dependency on __sdidinit member of struct _reent to check
object initialization. Like __sdidinit, the __cleanup member of
struct _reent is initialized in the __sinit() function. Checking
initialization against __cleanup serves the same purpose and will
reduce overhead in the __sfp() function in a follow up patch.
2022-02-22 12:38:46 +01:00
Mike Frysinger 416792d59a newlib: libc: delete crt0.o duplication
The crt0.o was handled in a subdir-by-subdir basis: it would be compiled
in one (e.g. libc/sys/$arch/), then copied up one level (libc/sys/), then
copied up another (libc/) before finally being copied & installed in the
top newlib dir.  The libc/sys/ copy was cleaned up, and then the top dir
was changed to copy it directly out of the libc/sys/$arch/ dir.  But the
libc/sys/ copy to libc/ was left behind.  Clean that up now too.
2022-02-18 21:25:32 -05:00
Mike Frysinger 56c65fb8d9 newlib: posix: use local includes for local headers
These headers aren't installed, so use "" includes instead of <> so
we don't search system header paths.  This matches the style used
elsewhere in the tree for these local headers, and makes it work
w/out explicit -I flags (as needed with non-recursive make).
2022-02-18 18:40:57 -05:00
Mike Frysinger ac9f8c46b1 newlib: libm: merge build up a directory
Convert all the libm/ subdir makes into the top-level Makefile.  This
allows us to build all of libm from the top Makefile without using any
recursive make calls.  This is faster and avoids the funky lib.a logic
where we unpack subdir archives to repack into a single libm.a.  The
machine override logic is maintained though by way of Makefile include
ordering, and source file accumulation in libm_a_SOURCES.

One thing to note is that this will require GNU Make because of:
	libm_a_CFLAGS = ... $(libm_a_CFLAGS_$(subst /,_,$(@D)))
This was the only way I could find to supporting per-dir compiler
settings, and I couldn't find a POSIX compatible way of transforming
the variable content.  I don't think this is a big deal as other
Makefiles in the tree are using GNU Make-specific syntax, but I call
this out as it's the only one so far in the new automake code that
I've been writing.

Automake doesn't provide precise control over the output object names
(by design).  This is fine by default as we get consistent names in all
the subdirs: libm_a-<source>.o.  But this relies on using the same set
of compiler flags for all objects.  We currently compile libm/common/
with different optimizations than the rest.

If we want to compile objects differently, we can create an intermediate
archive with the subset of objects with unique flags, and then add those
objects to the main archive.  But Automake will use a different prefix
for the objects, and thus we can't rely on ordering to override.

But if we leverage $@, we can turn Automake's CFLAGS into a multiplex
on a per-dir (and even per-file if we wanted) basis.  Unfortunately,
since $@ contains /, Automake complains it's an invalid name.  While
GNU Make supports this, it's a POSIX extension, so Automake flags it.
Using $(subst) avoids the Automake warning to get a POSIX compliant
name, albeit with a GNU Make extension.
2022-02-17 20:56:32 -05:00
Mike Frysinger f2b053f49e newlib: separate out libg from libc
Make this a separate target from libc so that we can migrate libc over
to automake more easily.  Having it integrated into the libc target is
difficult to handle when using automake rules which expect a one-to-one
mapping between names & inputs.
2022-02-17 20:54:21 -05:00
Mike Frysinger c75bb30fc1 newlib: libc: reshuffle include order for the manual
When migrating the manual to the top-level, the include order was
sorted by name of the subdir.  But this changed the chapter order
of the manual in the process.  Change the sorting back to match
existing chapters and update the comments to explain.
2022-02-17 20:43:51 -05:00
Mike Frysinger 48942fe31a newlib: powerpc: switch to Automake conditionals
Using xxx_LIBADD, xxx_DEPENDENCIES, and EXTRA_xxx_SOURCES is one way of
conditionally including files into a target.  But it's meant more for the
cases where the variables added to LIBADD & DEPENDENCIES are constructed
via substitution (e.g. AC_SUBST) or other dynamic methods.  With Automake
conditionals, then the much simpler form is to conditionally append to
the xxx_SOURCES variable and let Automake sort everything out.
2022-02-17 20:43:51 -05:00
Mike Frysinger bf9f6a0984 newlib: use https:// URIs in more places 2022-02-17 00:48:58 -05:00
Mike Frysinger beadbdfc04 newlib: fix mips fenv.o handling
Commit 8fa73a9f84 changed how fenv.c is
compiled wrt mips16 targets used the wrong variable to add fenv.o to
libm.a.  Fix that thinko so it's included in the build again.
2022-02-16 20:40:53 -05:00
Mike Frysinger 2a83e65fc2 newlib: rtems: drop redundant header install
The top-level newlib dir already takes care of recursing into the
sys/xxx/include/ subdirs and installing any headers found, so the
rtems subdir doesn't need to do this itself.
2022-02-16 20:03:57 -05:00
Mike Frysinger 01ed65ed09 newlib: add missing mkdir to header install
Make sure these subdirs exist before trying to install headers into them.
2022-02-16 20:03:07 -05:00
Mike Frysinger 40748cd73a newlib: powerpc: simplify reallocr & callocr build logic
Replace the custom build rules (which require copying & pasting from the
current Makefile) with small stub files.  This allows us to drop the rules
entirely and let Automake provide everything.
2022-02-16 20:00:27 -05:00
Mike Frysinger d1591ed4a1 newlib: i386/xstormy16: drop unused -I libm/common flag
These subdirs don't actually use anything from libm.  The common dir
in particular only has 4 header files, and none are included here.

The xstormy16 code has a comment mentioning why this hack is here, but
it refers to code that was removed when its configure script was merged
up a level.
2022-02-16 19:58:13 -05:00
Mike Frysinger 907764ebec newlib/libgloss: drop unused $(CROSS_CFLAGS)
This is used in a bunch of places, but nowhere is it ever set, and
nowhere can I find any documentation, nor can I find any other project
using it.  So delete the flags to simplify.
2022-02-15 20:02:51 -05:00
Mike Frysinger df5808b771 newlib: drop support for decstation & sunos systems
These targets don't actually cross-compile -- they try to pull some
objects out of the host's /lib/libc.a, /lib/libm.a, and /lib/crt0.o
directly and merge them into newlib's own libraries.  This is hard
to keep working and impossible to test.  Considering the vintage of
such targets, and gcc dropping them many many years ago, drop them
from newlib too.  This will make cleaning up the build a lot easier.
2022-02-15 20:00:58 -05:00
Mike Frysinger b7f2965dc3 newlib: rename doc/local.mk to Makefile.inc
For consistency across the whole tree.
2022-02-15 19:59:53 -05:00
Mike Frysinger ac90a6590b newlib: phoenix: merge configure up to top-level
Merge sys/phoenix/ configure logic into libc/ itself.  This kills
off the last lingering script in this tree (other than libc itself).
2022-02-15 19:59:08 -05:00
Mike Frysinger 86432e55b4 newlib: phoenix: merge machine/ configure scripts up a level
The machine configure scripts are all effectively stub scripts that
pass the higher level options to its own makefile.
2022-02-15 19:59:08 -05:00
Mike Frysinger d470ef6463 newlib: phoenix: merge machine/ trampoline up a level
The machine/{configure,Makefile} files exist only to fan out to the
specific machine/$arch/ subdir.  We already have all that same info
in the phoenix/ dir itself, so by moving the recursive configure and
make calls into it, we can cut off this logic entirely and save the
overhead.
2022-02-15 19:59:08 -05:00
Mike Frysinger 16c12761fd newlib: phoenix: drop missing machine subdirs
These were never added to the tree, and as we transition from autoconf
to automake, it really wants the latter subdirs to always exist.  These
don't, so delete the logic.
2022-02-15 19:59:08 -05:00
Mike Frysinger 5a6bf1749f newlib: phoenix: move some logic from configure to the Makefile
These configure scripts hardcode some settings, so move them to the
Makefile to simplify so we can drop the configure scripts entirely.
2022-02-15 19:59:08 -05:00
Andoni Arregi ec69debcb9 Improve lgammaf range for very small cases
The original cut for small arguments at |x|<2**-70 (copied from the
double version) produces that when computing nadj we get a subnormal
number for t*x and thus, the division of pi/subnormal will be INF and
the logarithm of it too, which is wrong as a result for lgammaf in this
range.
The proposed new limit seems to be safe and has been tested to
produce accurate results.
(Courtesy of Andreas Jung, ESA)
2022-02-14 14:44:11 +01:00
Mike Frysinger bf167aade1 newlib: remove unused fenv flags
These look like they were just copied & pasted from common/Makefile.am.
The funcs in this dir are all stubs that don't actually call any math
or builtin functions, and a simple compile shows they produce identical
object code.  So delete to simplify the build rules.
2022-02-11 06:26:01 -05:00
Andoni Arregi 8f2bd6f046 Fix expf overflow limit
Correct the overflow limit in the variable o_threshold to be consistent
with the FLT_UWORD_LOG_MAX variable used by the internal implementation
of the expf algorithm itself.
The u_threshold variable has also been modified to be written in the
same format.

Note that this fix improves the situation but does not completely
correct the inconsistencies regarding the overflow and underflow limits
between the expf wrapper (wf_exp.c) and the expf algorithm itself
(ef_exp.c).

Currently these limits are different for the
_FLT_LARGEST_EXPONENT_IS_NORMAL and _FLT_NO_DENORMALS cases as well as
for the case where __OBSOLETE_MATH is not defined (only for the
underflow limit in this case).
2022-02-10 15:59:14 +01:00
Mike Frysinger 1aec525a44 newlib: delete unused autotool regen scripts
These don't work at all now that we've completely upgraded autotools.
2022-02-10 01:39:08 -05:00
Mike Frysinger e95c80b6d8 newlib: libm: fix rebase conflicts
I missed this cleanup when rebasing on top of the latest branch.
2022-02-10 00:36:34 -05:00
Mike Frysinger e114cbc6e1 newlib: libm: move configure into top-level
This kills off the last configure script under libm/ and folds it
into the top newlib configure script.  The vast majority of logic
was already in the top configure script, so move the little that
is left into a libm/acinclude.m4 file.
2022-02-10 00:28:05 -05:00
Mike Frysinger 5b9c4cf23e newlib: drop support for $oext
This was needed only to support libtool in case objects ended in .lo
instead of .o, but we dropped libtool, so drop this too.
2022-02-09 23:35:23 -05:00
Mike Frysinger f034d8ad19 newlib: drop support for $aext
This was needed only to support libtool in case the library ended in
.la instead of .a, but we dropped libtool, so drop this too.
2022-02-09 23:34:17 -05:00
Mike Frysinger 5c21b37214 newlib: fix mkdoc dependencies
Make sure we depend on the right name of mkdoc all the time, and that
the rules that need it (e.g. .def files) depend on it.

Reported-by: Jon Turney <jon.turney@dronecode.org.uk>
2022-02-09 23:26:19 -05:00
Mike Frysinger 006da84337 newlib: drop libtool support
This was only ever used for i?86-pc-linux-gnu targets, but that's been
broken for years, and has since been dropped.  So clean this up too.

This also deletes the funky objectlist logic since it only existed for
the libtool libraries.  Since it was the only thing left in the small
Makefile.shared file, we can punt that too.
2022-02-09 20:27:37 -05:00
Mike Frysinger 5a0ab4454b newlib: punt sys/linux support
This was only used by the i?86-pc-linux-gnu target which we've removed,
and even though it's using a "sys/linux/" dir to make it sound like it
only depends on the Linux kernel, it's actually tied to glibc APIs built
on top of Linux.  Since the code relies on internal glibc APIs and has
been broken for some time, punt it all.  If someone wants to bring it
back, they can try and actually keep the Linux-vs-glibc APIs separate.
2022-02-09 20:27:37 -05:00
Mike Frysinger e01b2bb014 newlib: drop unused iconvdata
This was only ever used for i?86-pc-linux-gnu targets, but that's been
broken for years, and has since been dropped.  So clean this up too.
2022-02-09 20:26:55 -05:00
Mike Frysinger 462d6942f6 newlib: drop i?86-pc-linux-* target support
This was added 20+ years ago.  It seems to have very few (or no users)
as it only works on 32-bit x86 GNU/Linux (i.e. glibc) systems, and even
then only with old versions of glibc.  It hasn't compiled in at least 5
years, but most likely been broken for more like 15 years -- it relies
on internal glibc APIs (like linuxthreads), and that code has changed
and been deleted significantly since.

This single target ends up dragging in a lot of non-trivial code that is
hard to keep working, and currently impossible to verify -- the libtool
and iconvdata and sys/linux/ code isn't used by anything else, but ends
up touching just about every build file in the tree.  Punt the target so
we can start stripping out all these unique code paths.

This commit by itself just disables the target.  We'll start deleting the
individual unused pieces in followups.
2022-02-09 20:23:12 -05:00
Mike Frysinger 401e68c664 newlib: switch to standard AC_PROG_RANLIB
This is basically a noop, but switch to the autoconf macro for finding
a suitable ranlib tool.
2022-02-08 22:18:06 -05:00
Mike Frysinger 985c8f3592 newlib: drop autoconf-2.13 hack
We require autoconf-2.69 now, so we don't need this old install hack.
2022-02-08 22:18:06 -05:00
Mike Frysinger b63a4bb49a newlib: drop cygnus EXEEXT hack
Now that we rely on AC_NO_EXECUTABLES to disable link tests, we don't
need this hack to disable exeext probing.
2022-02-08 22:18:05 -05:00
Mike Frysinger e7ad3f5aa8 newlib: switch to AM_PROG_AR
Now that we require automake-1.15, we can use this macro rather than
do the tool search ourselves.
2022-02-08 21:24:59 -05:00
Mike Frysinger 34af195290 newlib: switch to standard AM_PROG_AS
Now that we require a recent automake version, rely on it to provide AS
and CCAS and CCASFLAGS for us.
2022-02-08 20:19:18 -05:00
Mike Frysinger b9346cee1a newlib: switch to standard AC_PROG_CC
Now that we use AC_NO_EXECUTABLES, and we require a recent version of
autoconf, we don't need to define our own copies of these macros.  So
switch to the standard AC_PROG_CC.
2022-02-08 19:09:26 -05:00
Mike Frysinger 9b50254377 newlib: move AC_NO_EXECUTABLES logic up to common code
This logic was added to libc & libm to get it working again after some
reworks in the CPP handling, but now that that's settled, let's move
this to the common newlib configure logic.  This will make it easier
to consolidate all the configure calls into the top-level newlib dir.

This does create a lot of noise in the generate scripts, but that's
because of the ordering of the calls, not because of correctness. We
will try to draw that back down in follow up commits as we modernize
the toolchain calls in here.
2022-02-08 19:09:26 -05:00
Mike Frysinger 953ba1e6d1 newlib: simplify nds32 automake checks
This code is a bit more convoluted than it needs to be.  GPR_SOURCES
is never set to anything, and the automake checks use negative logic
to add the SP & DP source files to dedicated variables that are only
expanded once.  Get rid of the unused variable, use normal boolean
logic, and collapse the source settings into a single variable.
2022-02-08 19:06:15 -05:00
Mike Frysinger 8fff0aac0a newlib: drop unused xscale subdir
This target was deleted in 2011 in 25fa7e5ad6,
but this directory was missed.  Punt it too.
2022-02-08 19:05:14 -05:00
Mike Frysinger 24b1e4b942 newlib: drop shared documentation rules
Now that the top-level makefile handles these, don't need to copy
these into every single subdir.
2022-02-05 00:18:01 -05:00
Mike Frysinger 6026ef29d8 newlib: move man page generation into top-level build
This allows building the libc & libm pages in parallel, and drops
the duplication in the subdirs with the chew/chapter settings.

The unused rules in Makefile.shared are left in place to minimize
noise in the change.
2022-02-05 00:17:54 -05:00
Mike Frysinger fc2b4ffee0 newlib: libc: move manual into top-level build
This doesn't migrate all the docs, just the libc's manual (pdf/info).
This is to show the basic form of migrating the chew files.

For subdirs that didn't have any docs, I've stripped their settings
for clarity.  If someone wanted to suddenly add docs, they can add
the corresponding Makefile.inc files easily.
2022-02-04 23:57:12 -05:00
Mike Frysinger 44f6310bf9 newlib: libc: include all chapters all the time in the manual
THe stdio subdir is actually required by the documentation.  The
stdio/def is handled dynamically, but libc.texi always expects it
to be included, and fails if it isn't.  So making it required when
building docs is safe.

The xdr subdir is handled dynamically, but it doesn't include any
docs, so the dynamic logic isn't (currently) adding any value.  So
making it required when building docs is safe.

That leaves: iconv, stdio64, posix, and signal subdirs.  The chapters
have a little disclaimer saying they are system-dependent, but even
then, imo having stable manuals regardless of the target is preferable,
and we can add more disclaimer language to these chapters if we want.

This doesn't touch the man page codepaths, just the info/pdf.
2022-02-04 19:39:09 -05:00
Mike Frysinger 3365bd2f7a newlib: libm: move manual into top-level build
This doesn't migrate all the docs, just the libm's manual (pdf/info).
This is to show the basic form of migrating the chew files.
2022-02-04 19:39:05 -05:00
Mike Frysinger 4574c60378 newlib: arm & v850: simplify build rules
Let automake manage whether the objects are included in lib.a.  This
fixes failures after to commit 71086e8b2d
("newlib: delete (most) redundant lib_a_CCASFLAGS=$(AM_CCASFLAGS)") due
to automake generating different set of implicit rules, and the code in
here assuming the names of the generated objects.
2022-02-03 20:45:47 -05:00
Mike Frysinger d5ebf5277e newlib: rename libc_cv_ prefix to newlib_cv_
We've been using both libc_cv_ and newlib_cv_ for our cache vars.
Let's consolidate on newlib_cv_ to avoid conflicts with glibc which
is already using the libc_cv_ prefix.
2022-02-01 21:37:00 -05:00
Mike Frysinger 624e06b3cf newlib: drop unused cache vars from Makefiles
These aren't used in any of the makefiles, so there's no point in
exporting these.  These are only checked in the configure script.
2022-02-01 21:35:47 -05:00
Mike Frysinger 041dd7ff26 newlib: add AC_CACHE_CHECK sugar around preprocessor checks
This isn't strictly necessary, but it makes for much clearer logs as
to what the target is doing, and provides cache vars for anyone who
wants to force the test a different way, and it lets the build cache
its own results when rerunning config.status.
2022-02-01 18:15:51 -05:00
Mike Frysinger 38755463e5 newlib: delete unused iconvdata subdir config
Since commit dcbff9eea7 ("newlib: merge
iconvdata into top-level Makefile"), there is no configure script in
the iconvdata/ subdir, so this call will just issue a warning and not
do anything useful.  Punt it.
2022-02-01 18:13:53 -05:00
Mike Frysinger 4b0e66093c newlib: fix preprocessor checks
Restore the call to AC_NO_EXECUTABLES -- I naively assumed in commit
2e9aa5f56c ("newlib: update preprocessor
configure checks") that checking for a preprocessor would not involve
linking code.  Unfortunately, autoconf will implicitly check that the
compiler "works" before allowing it to be used, and that involves a
link test, and that fails because newlib provides the C library which
is needed to pass a link test.

There is some code in NEWLIB_CONFIGURE specifically to help mitigate
these, but it's not kicking in here for some reason, so let's just add
the AC_NO_EXECUTABLES call back until we can unwind that custom logic.

Additionally, we have to call AC_PROG_CPP explicitly.  This was being
invoked later on, but only in the use_libtool=yes codepath, and that
is almost never enabled.
2022-01-31 22:21:17 -05:00
Mike Frysinger 6a59fc444b newlib: fix cygwin -I path
This code snippet assumed it was only ever run in the top configure
script where srcdir would point to newlib/ which is parallel to the
winsup/ tree.  This is incorrect for all of the subdir configure
scripts leading to bad -I flags in $(CC).  Switch it over to the
new abs_newlib_basedir which should work in all subdirs.
2022-01-29 01:35:30 -05:00