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This patch lays out the top-level organisation of the RISC-V 32-bit port.
It provides all the Implies files as well as various other fragments of
the build infrastructure.
Reviewed-by: Maciej W. Rozycki <macro@wdc.com>
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Specify the minimum kernel version for RISC-V 32-bit as the 5.4 kernel.
We require this commit: "waitid: Add support for waiting for the current
process group" for the kernel as it adds support for the P_PGID id for
the waitid syscall. Without this patch we can't replace the wait4
syscall on 64-bit time_t only systems.
Reviewed-by: Maciej W. Rozycki <macro@wdc.com>
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Fix a:
.../sysdeps/unix/sysv/linux/riscv/configure: line 181: test: =: unary operator expected
message produced by the RISC-V configure fragment with the soft-float
ABI selected, caused by $libc_cv_riscv_float_abi evaluating to nil in
the invocation of `test $libc_cv_riscv_float_abi = no'.
* sysdeps/unix/sysv/linux/riscv/configure.ac: Quote
$libc_cv_riscv_float_abi in `test' invocation.
* sysdeps/unix/sysv/linux/riscv/configure: Regenerate.
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This patch lays out the top-level orginazition of the RISC-V port. It
contains all the Implies files as well as various other fragments of
build infastructure for the RISC-V port. This contains the only change
to a shared file: config.h.in.
RISC-V is a family of base ISAs with optional extensions. The base ISAs
are RV32I and RV64I, which are 32-bit and 64-bit integer-only ISAs, but
this port currently only supports RV64I based systems. Support for
RISC-V lives in in sysdeps/riscv. In addition to these ISAs, our glibc
port supports most of the currently-defined extensions: the A extension
for atomics, the M extension for multiplication, the C extension for
compressed instructions, and the F/D extensions for single/double
precision IEEE floating-point. Most of these extensions are handled by
GCC, but glibc defines various floating-point wrappers and emulation
routines as well as some atomic wrappers.
We support running glibc-based programs on Linux, the support for which
lives in sysdeps/unix/sysv/linux/riscv.
2018-01-29 Palmer Dabbelt <palmer@sifive.com>
* sysdeps/riscv/Implies: New file.
* sysdeps/riscv/Makefile: Likewise.
* sysdeps/riscv/configure: Likewise.
* sysdeps/riscv/configure.ac: Likewise.
* sysdeps/riscv/nptl/Makefile: Likewise.
* sysdeps/riscv/preconfigure: Likewise.
* sysdeps/riscv/rv64/Implies-after: Likewise.
* sysdeps/riscv/rv64/rvd/Implies: Likewise.
* sysdeps/riscv/rv64/rvf/Implies: Likewise.
* sysdeps/unix/sysv/linux/riscv/Implies: Likewise.
* sysdeps/unix/sysv/linux/riscv/Makefile: Likewise.
* sysdeps/unix/sysv/linux/riscv/Versions: Likewise.
* sysdeps/unix/sysv/linux/riscv/configure: Likewise.
* sysdeps/unix/sysv/linux/riscv/configure.ac: Likewise.
* sysdeps/unix/sysv/linux/riscv/ldd-rewrite.sed: Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/Implies: Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/Makefile: Likewise.
* sysdeps/unix/sysv/linux/riscv/shlib-versions: Likewise.
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