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| author | Florian Hofhammer <florian.hofhammer@fhofhammer.de> | 2022-02-24 10:36:11 +0100 |
|---|---|---|
| committer | Florian Hofhammer <florian.hofhammer@fhofhammer.de> | 2022-02-24 10:36:11 +0100 |
| commit | 6b07a6b650e4150ffea0bf154f8a50bbbf81780f (patch) | |
| tree | 7b8cd863e7ca226d681503a97e73c5d64181ca6e /README.md | |
| parent | f2caeb4d5a306c7ff2861f4c0fcd01338a315f9b (diff) | |
| download | riscv-gnu-toolchain-6b07a6b650e4150ffea0bf154f8a50bbbf81780f.zip riscv-gnu-toolchain-6b07a6b650e4150ffea0bf154f8a50bbbf81780f.tar.gz riscv-gnu-toolchain-6b07a6b650e4150ffea0bf154f8a50bbbf81780f.tar.bz2 | |
Update README.md to account for musl libc
Signed-off-by: Florian Hofhammer <florian.hofhammer@fhofhammer.de>
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -68,12 +68,15 @@ run the following command: ./configure --prefix=/opt/riscv make linux -The build defaults to targetting RV64GC (64-bit), even on a 32-bit build -environment. To build the 32-bit RV32GC toolchain, use: +The build defaults to targeting RV64GC (64-bit) with glibc, even on a 32-bit +build environment. To build the 32-bit RV32GC toolchain, use: ./configure --prefix=/opt/riscv --with-arch=rv32gc --with-abi=ilp32d make linux +In case you prefer musl libc over glibc, configure just like above and opt for +`make musl` instead of `make linux`. + Supported architectures are rv32i or rv64i plus standard extensions (a)tomics, (m)ultiplication and division, (f)loat, (d)ouble, or (g)eneral for MAFD. @@ -88,11 +91,14 @@ To build either cross-compiler with support for both 32-bit and ./configure --prefix=/opt/riscv --enable-multilib -And then either `make` or `make linux` for the Newlib or Linux cross-compiler respectively. +And then either `make`, `make linux` or `make musl` for the Newlib, Linux +glibc-based or Linux musl libc-based cross-compiler, respectively. -The multilib compiler will have the prefix riscv64-unknown-elf- or riscv64-unknown-linux-gnu-, +The multilib compiler will have the prefix riscv64-unknown-elf-, +riscv64-unknown-linux-gnu- or riscv64-unknown-linux-musl- but will be able to target both 32-bit and 64-bit systems. It will support -the most common `-march`/`-mabi` options, which can be seen by using the `--print-multi-lib` flag on either cross-compiler. +the most common `-march`/`-mabi` options, which can be seen by using the +`--print-multi-lib` flag on either cross-compiler. ### Troubleshooting Build Problems @@ -241,4 +247,3 @@ Here is the list of configure option for specify source tree: --with-gdb-src --with-linux-headers-src --with-qemu-src - |