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Doc/tutorial/part1.md: Show how to list toolchain targets 

Change-Id: I276ea0a6b52b55b8772c76f48f7a0fb149af6e78
Signed-off-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43518
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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David Hendricks 2020-07-16 09:47:39 -07:00
parent bc792af28e
commit 4cdc698707
1 changed files with 14 additions and 2 deletions
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Documentation/tutorial/part1.md
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@ -19,9 +19,21 @@ Download, configure, and build coreboot
$ cd coreboot
### Step 3 - Build the coreboot toolchain
Please note that this can take a significant amount of time.
Please note that this can take a significant amount of time. Use `CPUS=` to
specify number of `make` jobs to run in parallel.
$ make crossgcc-i386 CPUS=$(nproc)
This will list toolchain options and supported architectures:
$ make help_toolchain
Here are some examples:
$ make crossgcc-i386 CPUS=$(nproc) # build i386 toolchain
$ make crossgcc-aarch64 CPUS=$(nproc) # build Aarch64 toolchain
$ make crossgcc-riscv CPUS=$(nproc) # build RISC-V toolchain
Note that the i386 toolchain is currently used for all x86 platforms, including
x86_64.
Also note that you can possibly use your system toolchain, but the results are
not reproducible, and may have issues, so this is not recommended. See step 5