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Update m help text with guidance on parallelism

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Remove "-j" from the default recommended arguments and add a paragraph
describing the -j behavior.

Test: m help
Change-Id: Id5a5f4719f18ea2a9d09df43f5fb38592a59f5c9
This commit is contained in:
Colin Cross 2021-03-01 13:32:13 -08:00
parent d33ae8363c
commit 3fb7ddf3bc
1 changed files with 5 additions and 1 deletions
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help.sh
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@ -12,11 +12,15 @@ cd '"${TOP}"'
source build/envsetup.sh # Add "lunch" (and other utilities and variables)
# to the shell environment.
lunch [<product>-<variant>] # Choose the device to target.
m -j [<goals>] # Execute the configured build.
m [<goals>] # Execute the configured build.
Usage of "m" imitates usage of the program "make".
See '"${SCRIPT_DIR}"'/Usage.txt for more info about build usage and concepts.
The parallelism of the build can be set with a -jN argument to "m". If you
don't provide a -j argument, the build system automatically selects a parallel
task count that it thinks is optimal for your system.
Common goals are:
clean (aka clobber) equivalent to rm -rf out/