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Switched back to draft for now - this should use the static versions of GMP and MPFR instead. |
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Upstream binutils now supports the ratified 1.0.0 bitmanip extensions, so rather than maintaining patches to add the unratified extensions back in, a fork of binutils was created which we now use, and should allow for easier updates to future versions. The glob and ELF BFD patches are no longer required for this version of binutils to build correctly so they are removed. Since the last version of binutils used, the GMP and MPFR libraries have become required for building GDB. However, the configure step will always prefer the shared library rather than the static one when building, so we have to build our own static-only libraries of these to link. MPFR is clone-able from the official repository, however GMP does not appreciate excessive cloning, so we use a release archive instead for that. The updated binutils contain a change for generating verilog memory (vmem) files that is useful for OpenTitan. See also: https://github.com/lowRISC/binutils Signed-off-by: Alice Ziuziakowska <a.ziuziakowska@lowrisc.org>
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jwnrt
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luismarques
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As upstream now supports the Bitmanip 1.0.0 spec, the unratified extension support was re-implemented in a fork of Binutils. This should make it easier and less error-prone to update to newer versions, instead of applying a patch.
The BFD and libc patches are also no longer needed in this version of Binutils, so that leaves no more patching.
Since the last version of Binutils we used, GMP and MPFR have become required dependencies of GDB. However, the configure script prefers to dynamically link shared libraries if they are available, and fallback to static ones if they are not present, so we opt to build both libraries statically as part of the build script.