Go to file
Alistair Francis 858342bd91 COVER: glibc port for 32-bit RISC-V (RV32)
This patch set contains the glibc port for 32-bit RISC-V.

This is based on the original work from Zong Li [1] and has been
updated to use a 64-bit time_t.

This requires a 5.4+ kernel and all of the testing has been done using
the 5.4 stable kernel.

Nothing fails when running ./scripts/build-many-glibcs.py (for all
targets) on my x86-64 machine.

This is the current list of tests that fail when running inside QEMU RV32
system emulation on the 5.4 kernel:

FAIL: elf/tst-ldconfig-ld_so_conf-update
FAIL: io/tst-lockf
FAIL: misc/test-errno-linux
FAIL: nss/tst-nss-files-hosts-long
FAIL: resolv/tst-resolv-res_init-thread
FAIL: stdio-common/bug22
FAIL: stdlib/tst-strfrom
FAIL: stdlib/tst-strfrom-locale
FAIL: sysvipc/test-sysvmsg

---Links---
1: https://sourceware.org/ml/libc-alpha/2018-07/msg00892.html

The latest version of my work can be found here: https://github.com/alistair23/glibc/tree/alistair/rv32.next

This specific version can be found here: https://github.com/alistair23/glibc/tree/alistair/rv32.1

---Changelog---
v1:
 - Update based from feedback on RFCv6
 - Improve test passing
     - There are only 9 tests failing now
 - Rebase on Lukasz's work
 - Send only the RV32 specific patches (other patches are already merged
   or on the list)
RFC v6:
 - Rebase on top of accetpted patches
 - Fix issues so that the tests actually run
RFC v5:
 - Hopefully finally get the correct layout for the *64 syscalls
 - Sort out the Changelog
RFC v4:
 - Continue to fix things that weren't working
 - Update the coding style to match glibc
 - Update the __ASSUME_TIME64_SYSCALLS work to better match Lukasz's
 work
RFC v3:
 - Remove all "Hack" patches
 - Incorporate upstream comments
 - Ensure we don't break RV64
 - Lot's more testing and fixes
RFC v2:
 - Add Lukasz's patches
 - Update the non HACK syscalls after feedback
 - define __ASSUME_TIME64_SYSCALLS and __ASSUME_RLIM64_SYSCALLS
 - Remove lockf64.c
 - Other smaller changes from RFC v1
2020-04-25 19:16:16 -07:00
argp Prepare redirections for IEEE long double on powerpc64le 2020-02-17 15:28:29 -06:00
assert Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
benchtests Add benchtests for roundeven and roundevenf. 2020-03-27 23:24:02 +00:00
bits sysv: Define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 2020-04-02 09:21:05 -07:00
catgets Update copyright dates not handled by scripts/update-copyrights. 2020-01-01 00:21:22 +00:00
ChangeLog.old Generate ChangeLog.old/ChangeLog.20 for 2.31 2020-02-01 17:22:50 +05:30
conform Convert Python scripts to Python 3 2020-03-03 15:52:09 -08:00
crypt Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
csu elf: Implement __libc_early_init 2020-04-24 22:32:09 +02:00
ctype Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
debug mips: Fix bracktrace result for signal frames 2020-02-18 10:39:03 -03:00
dirent Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dlfcn Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
elf elf: Implement __libc_early_init 2020-04-24 22:32:09 +02:00
gmon Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
grp Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
gshadow Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hesiod nss_hesiod: Use NSS_DECLARE_MODULE_FUNCTIONS 2020-02-13 09:14:44 +01:00
htl htl: Link internal htl tests against libpthread 2020-02-17 00:36:53 +01:00
hurd hurd: Make O_TRUNC update mtime/ctime 2020-03-29 19:42:55 +02:00
iconv Update copyright dates not handled by scripts/update-copyrights. 2020-01-01 00:21:22 +00:00
iconvdata Reset converter state after second wchar_t output (Bug 25734) 2020-04-15 22:31:40 -04:00
include Linux: Remove <sys/sysctl.h> and the sysctl function 2020-04-15 17:17:32 +02:00
inet Add IPPROTO_ETHERNET and IPPROTO_MPTCP from Linux 5.6 to netinet/in.h. 2020-04-03 18:08:28 +00:00
intl Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
io Linux: Work around kernel bugs in chmod on /proc/self/fd paths [BZ #14578] 2020-02-18 17:52:27 +01:00
libio <fd_to_filename.h>: Add type safety and port to Hurd 2020-02-18 13:42:29 +01:00
locale Fix locale/tst-locale-locpath cross-testing when sshd sets LANG. 2020-01-24 17:23:07 +00:00
localedata Bug 25819: Update to Unicode 13.0.0 2020-04-21 18:17:23 +02:00
login Update copyright dates not handled by scripts/update-copyrights. 2020-01-01 00:21:22 +00:00
mach hurd: add mach_print function 2020-04-14 13:19:18 +02:00
malloc malloc: ensure set_max_fast never stores zero [BZ #25733] 2020-04-06 16:27:53 -04:00
manual Remove __NO_MATH_INLINES 2020-04-17 11:40:44 -03:00
math Remove __NO_MATH_INLINES 2020-04-17 11:40:44 -03:00
mathvec Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
misc Add a syscall test for [BZ #25810] 2020-04-22 09:48:10 -07:00
nis nss_nis: Use NSS_DECLARE_MODULE_FUNCTIONS 2020-02-25 16:15:09 +01:00
nptl signal: Only handle on NSIG signals on signal functions (BZ #25657) 2020-04-21 15:10:10 -03:00
nptl_db Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
nscd nscd/cachedumper.c : fix whitespace 2020-03-17 14:03:43 -04:00
nss nss_files: Use NSS_DECLARE_MODULE_FUNCTIONS 2020-02-13 09:14:54 +01:00
po Update translations 2020-03-04 07:27:32 +05:30
posix Fix typo in posix/tst-fnmatch.input (Bug 25790) 2020-04-15 22:31:40 -04:00
pwd Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
resolv Move implementation of <file_change_detection.h> into a C file 2020-02-18 13:44:48 +01:00
resource Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
rt Block all signals on timer_create thread (BZ#10815) 2020-02-19 13:46:31 -03:00
scripts Add RISC-V 32-bit target to build-many-glibcs.py 2020-04-25 19:16:16 -07:00
setjmp Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
shadow Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
signal signal: Only handle on NSIG signals on signal functions (BZ #25657) 2020-04-21 15:10:10 -03:00
socket Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
soft-fp Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stdio-common Fix tests which expose ldbl -> _Float128 redirects 2020-03-25 14:34:23 -05:00
stdlib Add GRND_INSECURE from Linux 5.6 to sys/random.h 2020-04-09 21:21:16 +00:00
string Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sunrpc sunrpc: Properly clean up if tst-udp-timeout fails 2020-02-12 16:25:34 -03:00
support support: Change xgetline to return 0 on EOF 2020-04-03 16:26:10 +02:00
sysdeps RISC-V: Add rv32 path to RTLDLIST in ldd 2020-04-25 19:16:15 -07:00
sysvipc Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
termios Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
time alpha: Fix static gettimeofday symbol 2020-02-13 08:27:27 -03:00
timezone Update timezone/README 2020-01-09 23:00:25 -08:00
wcsmbs Prepare redirections for IEEE long double on powerpc64le 2020-02-17 15:28:29 -06:00
wctype Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
__COVER__ COVER: glibc port for 32-bit RISC-V (RV32) 2020-04-25 19:16:16 -07:00
.gitattributes
.gitignore
abi-tags
aclocal.m4
config.h.in sparc: Assume GOTDATA support in the toolchain 2019-10-09 19:15:33 +02:00
config.make.in Make --bindir effective 2019-05-14 11:04:33 -03:00
configure Remove reference of --without-fp on configure 2020-03-06 09:53:24 -03:00
configure.ac Remove reference of --without-fp on configure 2020-03-06 09:53:24 -03:00
COPYING
COPYING.LIB
extra-lib.mk
gen-locales.mk Improve gen-locales.mk and gen-locale.sh to make test files with @ options work 2018-02-27 17:01:57 +01:00
INSTALL Update newest tested versions of dependencies in install.texi 2020-02-01 17:16:54 +05:30
libc-abis libc-abis: Define ABSOLUTE ABI [BZ #19818][BZ #23307] 2018-07-05 18:06:43 +01:00
libof-iterator.mk
LICENSES Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
MAINTAINERS
Makeconfig Makeconfig: sandwich gnulib-tests between libc/ld linking of tests 2020-03-25 14:34:23 -05:00
Makefile Drop dependency of dist target on ChangeLog 2020-01-09 13:28:08 +05:30
Makefile.help Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Makefile.in
Makerules Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
NEWS Documentation for the RISC-V 32-bit port 2020-04-25 19:16:15 -07:00
o-iterator.mk
README Documentation for the RISC-V 32-bit port 2020-04-25 19:16:15 -07:00
Rules Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
shlib-versions
test-skeleton.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
version.h Open master for 2.32 development 2020-02-01 17:22:50 +05:30

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
implement the operating system behavior seen by user applications.
In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 3.2 or later.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arm-*-linux-gnueabi
	csky-*-linux-gnuabiv2
	hppa-*-linux-gnu
	i[4567]86-*-linux-gnu
	x86_64-*-linux-gnu	Can build either x86_64 or x32
	ia64-*-linux-gnu
	m68k-*-linux-gnu
	microblaze*-*-linux-gnu
	mips-*-linux-gnu
	mips64-*-linux-gnu
	powerpc-*-linux-gnu	Hardware or software floating point, BE only.
	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-linux-gnu
	riscv32-*-linux-gnu
	riscv64-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu

If you are interested in doing a port, please contact the glibc
maintainers; see https://www.gnu.org/software/libc/ for more
information.

See the file INSTALL to find out how to configure, build, and install
the GNU C Library.  You might also consider reading the WWW pages for
the C library at https://www.gnu.org/software/libc/.

The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory.  The manual is still being updated
and contains some known errors and omissions; we regret that we do not
have the resources to work on the manual as much as we would like.  For
corrections to the manual, please file a bug in the `manual' component,
following the bug-reporting instructions below.  Please be sure to check
the manual in the current development sources to see if your problem has
already been corrected.

Please see https://www.gnu.org/software/libc/bugs.html for bug reporting
information.  We are now using the Bugzilla system to track all bug reports.
This web page gives detailed information on how to report bugs properly.

The GNU C Library is free software.  See the file COPYING.LIB for copying
conditions, and LICENSES for notices about a few contributions that require
these additional notices to be distributed.  License copyright years may be
listed using range notation, e.g., 1996-2015, indicating that every year in
the range, inclusive, is a copyrightable year that would otherwise be listed
individually.