[PATCH v5 00/17] glibc port for 32-bit RISC-V (RV32)
Alistair Francis
alistair.francis@wdc.com
Wed Aug 19 15:38:38 GMT 2020
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-libc_dlvsym
FAIL: elf/tst-libc_dlvsym-static
FAIL: io/tst-lockf
FAIL: stdlib/tst-strfrom
FAIL: stdlib/tst-strfrom-locale
---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/rv32.5
---Changelog---
v5:
- Small fiexes based on v4 comments
v4:
- Address comments on v3
v3:
- Re-write the library path detection
- Drop the ipctypes change
- Fix comments and code sytle
- Use __WORDSIZE in replace of __riscv_xlen in places
- Other changes requested in review
v2:
- Rebase on master
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
Alistair Francis (11):
RISC-V: Use 64-bit time_t and off_t for RV32 and RV64
RISC-V: Cleanup some of the sysdep.h code
RISC-V: Use 64-bit-time syscall numbers with the 32-bit port
RISC-V: Add support for 32-bit vDSO calls
RISC-V: Add path of library directories for the 32-bit
RISC-V: Add arch-syscall.h for RV32
RISC-V: Support the 32-bit ABI implementation
RISC-V: Add 32-bit ABI lists
RISC-V: Add the RV32 libm-test-ulps
riscv32: Specify the arch_minimum_kernel as 5.4
Documentation for the RISC-V 32-bit port
Zong Li (6):
RISC-V: Support dynamic loader for the 32-bit
RISC-V: Add hard float support for 32-bit CPUs
RISC-V: Fix llrint and llround missing exceptions on RV32
RISC-V: Add rv32 path to RTLDLIST in ldd
RISC-V: Build infastructure for 32-bit port
Add RISC-V 32-bit target to build-many-glibcs.py
NEWS | 11 +-
README | 1 +
scripts/build-many-glibcs.py | 15 +
sysdeps/riscv/bits/wordsize.h | 9 +-
sysdeps/riscv/nptl/bits/pthreadtypes-arch.h | 26 +-
sysdeps/riscv/nptl/bits/struct_rwlock.h | 27 +-
sysdeps/riscv/nptl/pthread-offsets.h | 17 +-
sysdeps/riscv/preconfigure | 6 +-
sysdeps/riscv/rv32/Implies-after | 1 +
.../riscv/rv32/fix-fp-int-convert-overflow.h | 38 +
sysdeps/riscv/rv32/rvd/Implies | 3 +
sysdeps/riscv/rv32/rvd/libm-test-ulps | 1405 ++++++++++++
sysdeps/riscv/rv32/rvd/libm-test-ulps-name | 1 +
sysdeps/riscv/rv32/rvd/s_lrint.c | 31 +
sysdeps/riscv/rv32/rvd/s_lround.c | 31 +
sysdeps/riscv/rv32/rvf/Implies | 1 +
sysdeps/riscv/rv32/rvf/s_lrintf.c | 31 +
sysdeps/riscv/rv32/rvf/s_lroundf.c | 31 +
sysdeps/riscv/sfp-machine.h | 27 +-
sysdeps/riscv/sys/asm.h | 7 +-
sysdeps/unix/sysv/linux/riscv/Makefile | 8 +-
.../unix/sysv/linux/riscv/bits/environments.h | 81 +
sysdeps/unix/sysv/linux/riscv/bits/time64.h | 36 +
sysdeps/unix/sysv/linux/riscv/bits/timesize.h | 22 +
sysdeps/unix/sysv/linux/riscv/configure | 43 +
sysdeps/unix/sysv/linux/riscv/configure.ac | 12 +
sysdeps/unix/sysv/linux/riscv/dl-cache.h | 54 +-
.../unix/sysv/linux/riscv/jmp_buf-macros.h | 55 +
sysdeps/unix/sysv/linux/riscv/kernel_stat.h | 23 +
sysdeps/unix/sysv/linux/riscv/ldconfig.h | 2 +-
sysdeps/unix/sysv/linux/riscv/ldd-rewrite.sed | 2 +-
sysdeps/unix/sysv/linux/riscv/rv32/Implies | 3 +
.../unix/sysv/linux/riscv/rv32/arch-syscall.h | 284 +++
.../unix/sysv/linux/riscv/rv32/c++-types.data | 67 +
sysdeps/unix/sysv/linux/riscv/rv32/ld.abilist | 5 +
.../linux/riscv/rv32/libBrokenLocale.abilist | 1 +
.../unix/sysv/linux/riscv/rv32/libanl.abilist | 4 +
.../unix/sysv/linux/riscv/rv32/libc.abilist | 1935 +++++++++++++++++
.../sysv/linux/riscv/rv32/libcrypt.abilist | 2 +
.../unix/sysv/linux/riscv/rv32/libdl.abilist | 9 +
.../unix/sysv/linux/riscv/rv32/libm.abilist | 940 ++++++++
.../sysv/linux/riscv/rv32/libpthread.abilist | 213 ++
.../sysv/linux/riscv/rv32/libresolv.abilist | 79 +
.../unix/sysv/linux/riscv/rv32/librt.abilist | 35 +
.../linux/riscv/rv32/libthread_db.abilist | 40 +
.../sysv/linux/riscv/rv32/libutil.abilist | 6 +
sysdeps/unix/sysv/linux/riscv/shlib-versions | 10 +-
sysdeps/unix/sysv/linux/riscv/sysdep.h | 59 +-
48 files changed, 5681 insertions(+), 68 deletions(-)
create mode 100644 sysdeps/riscv/rv32/Implies-after
create mode 100644 sysdeps/riscv/rv32/fix-fp-int-convert-overflow.h
create mode 100644 sysdeps/riscv/rv32/rvd/Implies
create mode 100644 sysdeps/riscv/rv32/rvd/libm-test-ulps
create mode 100644 sysdeps/riscv/rv32/rvd/libm-test-ulps-name
create mode 100644 sysdeps/riscv/rv32/rvd/s_lrint.c
create mode 100644 sysdeps/riscv/rv32/rvd/s_lround.c
create mode 100644 sysdeps/riscv/rv32/rvf/Implies
create mode 100644 sysdeps/riscv/rv32/rvf/s_lrintf.c
create mode 100644 sysdeps/riscv/rv32/rvf/s_lroundf.c
create mode 100644 sysdeps/unix/sysv/linux/riscv/bits/environments.h
create mode 100644 sysdeps/unix/sysv/linux/riscv/bits/time64.h
create mode 100644 sysdeps/unix/sysv/linux/riscv/bits/timesize.h
create mode 100644 sysdeps/unix/sysv/linux/riscv/jmp_buf-macros.h
create mode 100644 sysdeps/unix/sysv/linux/riscv/kernel_stat.h
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/Implies
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/c++-types.data
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/ld.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libBrokenLocale.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libanl.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libcrypt.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libdl.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libm.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libpthread.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libresolv.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/librt.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libthread_db.abilist
create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/libutil.abilist
--
2.28.0
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