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author | Michael Brown | 2014-08-19 17:17:25 +0200 |
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committer | Michael Brown | 2014-08-20 13:36:44 +0200 |
commit | c801cb29d64764fa8082ec2ab17dd12f74b3143f (patch) | |
tree | dde1548393981062a33054083daddfecbd2a0c9b /src/config/named.h | |
parent | [smc9000] Avoid using CONFIG as a preprocessor macro (diff) | |
download | ipxe-c801cb29d64764fa8082ec2ab17dd12f74b3143f.tar.gz ipxe-c801cb29d64764fa8082ec2ab17dd12f74b3143f.tar.xz ipxe-c801cb29d64764fa8082ec2ab17dd12f74b3143f.zip |
[build] Allow for named configurations at build time
Allow named configurations to be specified via the CONFIG=... build
parameter. For headers in config/*.h which support named
configurations, the following files will be included when building
with CONFIG=<name>:
- config/defaults/<platform>.h (e.g. config/defaults/pcbios.h)
- config/<header>.h
- config/<name>/<header>.h (only if the directory config/<name> exists)
- config/local/<header>.h (autocreated if necessary)
- config/local/<name>/<header>.h (autocreated if necessary)
This mechanism allows for predefined named configurations to be
checked in to the source tree, as a directory config/<name> containing
all of the required header files.
The mechanism also allows for users to define multiple local
configurations, by creating header files in the directory
config/local/<name>.
Note that the config/*.h files which are used only to configure
internal iPXE APIs (e.g. config/ioapi.h) cannot be modified via a
named configuration. This avoids rebuilding the entire iPXE codebase
whenever switching to a different named configuration.
Inspired-by: Robin Smidsrød <robin@smidsrod.no>
Tested-by: Robin Smidsrød <robin@smidsrod.no>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/config/named.h')
-rw-r--r-- | src/config/named.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/config/named.h b/src/config/named.h new file mode 100644 index 00000000..36efdabd --- /dev/null +++ b/src/config/named.h @@ -0,0 +1,26 @@ +#ifndef CONFIG_NAMED_H +#define CONFIG_NAMED_H + +/** @file + * + * Named configurations + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/* config/<name>/<header>.h */ +#ifdef CONFIG +#define NAMED_CONFIG(_header) <config/CONFIG/_header> +#else +#define NAMED_CONFIG(_header) <config/_header> +#endif + +/* config/local/<name>/<header>.h */ +#ifdef LOCAL_CONFIG +#define LOCAL_NAMED_CONFIG(_header) <config/local/LOCAL_CONFIG/_header> +#else +#define LOCAL_NAMED_CONFIG(_header) <config/_header> +#endif + +#endif /* CONFIG_NAMED_H */ |