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authorKito Cheng <kito.cheng@sifive.com>2022-04-12 08:55:32 +0800
committerGitHub <noreply@github.com>2022-04-12 08:55:32 +0800
commitdf6ecbe4ddb2a1a261b44af822d22f1253d3f0e4 (patch)
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parent44fedc5e1a8f202248fc0f2b39c84226d8f3d1e6 (diff)
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Merge pull request #1054 from riscv-collab/with-isa-spec2022.04.12
Add --with-isa-spec option to configure
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@@ -137,6 +137,17 @@ devtoolset-7 works.
There are a number of additional options that may be passed to
configure. See './configure --help' for more details.
+#### Set default ISA spec version
+
+`--with-isa-spec=` can specify the default version of the RISC-V Unprivileged
+(formerly User-Level) ISA specification.
+
+Possible options are: `2.2`, `20190608` and `20191213`.
+
+The default version is `2.2`.
+
+More details about this option you can refer this post [RISC-V GNU toolchain bumping default ISA spec to 20191213](https://groups.google.com/a/groups.riscv.org/g/sw-dev/c/aE1ZeHHCYf4).
+
#### Build with customized multi-lib configure.
`--with-multilib-generator=` can specify what multilibs to build. The argument