[Makefile.in] glibc: Remove unnecessary -g option

Using llvm-objdump I found warning if file was
compiled using riscv-gcc. Examples:

warning: failed to find source riscv-glibc/csu/elf-init.c

It concerned with compilation glibc with
debug info that is unnecessary operation. If user want to have debug info, than it's easy to pass -g.

This option wasn't touched more than 7 years...

changed riscv-gcc references to gcc in README

dejagnu: Rollback version to 1.6.2

Christoph has a fix on the road of upstream, but it not get merge yet, so let
rollback for now, and upgrade when upstream done.

Workaround for #1201

Update --with-isa-spec default option.

Fix mayberelsrcdir after gcc folder name change

[NEWLIB][Cross-build]: Fix merge-newlib-nano.

There is no $(NEWLIB_TUPLE)-gcc in install directory
during cross-compilation process. For example,
to compile for Windows, we has to have riscv64-unknown-elf-gcc
in our PATH and we has to use it with print-multi-lib
to find multilib configuration, because install
folder contains only .exe files (can not be executed)

This bugfix is to check: whether compiler we already
have for host - in the install directory or in the PATH.

Docs: Update README.md

[GCC]: Pass extra flags to gcc build.

There is no way to pass extra flags to gcc though
riscv-gnu-toolchain Makefile.

This is neccesary for me, because I has to rewrite gmp,
isl, mpfr, mpc folders in source of gcc project. Moreover,
I don't want to rebuild them with gcc.

Also I think, the opportunity to pass extra flags will be
convenient for many development purposes.

There is a typo in a previous commit that introduced src-dir-override
for DejaGnu.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

We have this feature for all other packages.
It is particularly useful to avoid pointless internet downloads
for automatic builds.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Bump glibc to 2.37

glibc 2.37 has been released on February 1st, 2023.
We still use 2.33 in this repo.
Let's make a huge step forward to the latest upstream release.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

This patch contains three minor updates:
1. Added texinfo to OS X dependency package
2. Brew tap discoteq/discoteq is no longer required to install the flock
3. Added tip in "Installation (Newlib)" to keep similar to the description
   in "Installation (Linux)" and fixed a typo.

Signed-off-by: Mingzheng Xing <xingmingzheng@iscas.ac.cn>

Add a tip so blindly following the instructions is more likely to just work.  
Issue #1169 

Signed-off-by: Carl Karsten <CFKarsten@gmail.com>

Add unittest to march-to-cpu-opt

Quick fix sim pk build failure for RV32.

ubuntu20.04 make it need "clang ninja-build"

Signed-off-by: 长柳 <110147328+changliuxy@users.noreply.github.com>

Support testing zdinx/zfinx/zhinx.

https://github.com/riscv-collab/riscv-gnu-toolchain/pull/1167 has found
some bug, and I realized the testing of march-to-cpu-opt is...not well,
so spend some time to improve that a little bit, it's not complete testing,
but at least it's a start :P

Fix wrong parse script

If test --with-arch=rv32imc_zve128x
NameError: name 'arch' is not defined

Signed-off-by: Kwanghoon Son <kwangson@yahoo.com>

- We don't set correct qemu option for zdinx/zfinx/zhinx, this patch is
fixing the march-to-cpu-opt, which is a script translate -march string
to qemu options.

Enhance the testing experience

Bump qemu to 7.1.0

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

musl: add missing submodule auto-initialization

Switch musl upstream URL from git:// to https://

This was the only such upstream URL and it caused issues for anyone
attempting to use it behind a proxy.

Fixes #1155.

Ubuntu 18.04 is deprecated and will be fully removed from GitHub
Actions soon (https://github.com/actions/runner-images/issues/6002

)

Signed-off-by: Florian Hofhammer <florian.hofhammer@fhofhammer.de>

Signed-off-by: Florian Hofhammer <florian.hofhammer@fhofhammer.de>