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Add documentation on the latest build environment extentions to

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the README file.
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Marian Balakowicz 2006-09-07 17:25:40 +02:00
parent 5e09054af6
commit baf3124953
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3
CHANGELOG
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@ -2,6 +2,9 @@
Changes since U-Boot 1.1.4:
======================================================================
* Add documentation on the latest build environment extentions to
the README file.
* Remove dead code (i2o and dma) from cpu/mpc824x/drivers/ directory.
* Fix LOG_DIR directory creation error.

36
README
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@ -2323,6 +2323,26 @@ images ready for download to / installation on your system:
- "u-boot" is an image in ELF binary format
- "u-boot.srec" is in Motorola S-Record format
By default the build is performed locally and the objects are saved
in the source directory. One of the two methods can be used to change
this behavior and build U-Boot to some external directory:
1. Add O= to the make command line invocations:
make O=/tmp/build distclean
make O=/tmp/build NAME_config
make O=/tmp/build all
2. Set environment variable BUILD_DIR to point to the desired location:
export BUILD_DIR=/tmp/build
make distclean
make NAME_config
make all
Note that the command line "O=" setting overrides the BUILD_DIR environment
variable.
Please be aware that the Makefiles assume you are using GNU make, so
for instance on NetBSD you might need to use "gmake" instead of
@ -2376,6 +2396,22 @@ or to build on a native PowerPC system you can type
CROSS_COMPILE=' ' MAKEALL
When using the MAKEALL script, the default behaviour is to build U-Boot
in the source directory. This location can be changed by setting the
BUILD_DIR environment variable. Also, for each target built, the MAKEALL
script saves two log files (<target>.ERR and <target>.MAKEALL) in the
<source dir>/LOG directory. This default location can be changed by
setting the MAKEALL_LOGDIR environment variable. For example:
export BUILD_DIR=/tmp/build
export MAKEALL_LOGDIR=/tmp/log
CROSS_COMPILE=ppc_8xx- MAKEALL
With the above settings build objects are saved in the /tmp/build, log
files are saved in the /tmp/log and the source tree remains clean during
the whole build process.
See also "U-Boot Porting Guide" below.