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Allowed zero-cost enforced ordering of features in startup banner

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Added FEATURE() macros to most relevant (non-driver) files.
This commit is contained in:
Michael Brown
2007-08-02 14:51:03 +01:00
parent 67afe84292
commit 9fd6a0418f
13 changed files with 80 additions and 40 deletions
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83
src/include/gpxe/features.h
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@@ -11,6 +11,17 @@
*
*/
/**
* @defgroup featurecat Feature categories
* @{
*/
#define FEATURE_PROTOCOL 01 /**< Network protocols */
#define FEATURE_IMAGE 02 /**< Image formats */
#define FEATURE_MISC 03 /**< Miscellaneous */
/** @} */
/**
* @defgroup dhcpfeatures DHCP feature option tags
*
@@ -20,50 +31,58 @@
* @{
*/
/** PXE API extensions */
#define DHCP_EB_FEATURE_PXE_EXT 0x10
/** iSCSI */
#define DHCP_EB_FEATURE_ISCSI 0x11
/** AoE */
#define DHCP_EB_FEATURE_AOE 0x12
/** HTTP */
#define DHCP_EB_FEATURE_HTTP 0x13
/** HTTPS */
#define DHCP_EB_FEATURE_HTTPS 0x14
#define DHCP_EB_FEATURE_PXE_EXT 0x10 /**< PXE API extensions */
#define DHCP_EB_FEATURE_ISCSI 0x11 /**< iSCSI protocol */
#define DHCP_EB_FEATURE_AOE 0x12 /**< AoE protocol */
#define DHCP_EB_FEATURE_HTTP 0x13 /**< HTTP protocol */
#define DHCP_EB_FEATURE_HTTPS 0x14 /**< HTTPS protocol */
#define DHCP_EB_FEATURE_TFTP 0x15 /**< TFTP protocol */
#define DHCP_EB_FEATURE_FTP 0x16 /**< FTP protocol */
#define DHCP_EB_FEATURE_DNS 0x17 /**< DNS protocol */
#define DHCP_EB_FEATURE_BZIMAGE 0x18 /**< bzImage format */
#define DHCP_EB_FEATURE_MULTIBOOT 0x19 /**< Multiboot format */
#define DHCP_EB_FEATURE_NBI 0x20 /**< NBI format */
#define DHCP_EB_FEATURE_PXE 0x21 /**< PXE format */
/** @} */
/** Declare a feature code for DHCP */
#define __dhcp_feature __table ( uint8_t, dhcp_features, 01 )
#define __dhcp_feature( category ) \
__table ( uint8_t, dhcp_features, category )
/** Construct a DHCP feature table entry */
#define DHCP_FEATURE( feature_opt, version ) \
_DHCP_FEATURE ( OBJECT, feature_opt, version )
#define _DHCP_FEATURE( _name, feature_opt, version ) \
__DHCP_FEATURE ( _name, feature_opt, version )
#define __DHCP_FEATURE( _name, feature_opt, version ) \
uint8_t __dhcp_feature_ ## _name [] __dhcp_feature = { \
feature_opt, DHCP_BYTE ( version ) \
#define DHCP_FEATURE( category, feature_opt, version ) \
_DHCP_FEATURE ( category, OBJECT, feature_opt, version )
#define _DHCP_FEATURE( category, _name, feature_opt, version ) \
__DHCP_FEATURE ( category, _name, feature_opt, version )
#define __DHCP_FEATURE( category, _name, feature_opt, version ) \
uint8_t __dhcp_feature_ ## _name [] __dhcp_feature ( category ) = { \
feature_opt, DHCP_BYTE ( version ) \
};
/** A named feature */
struct feature {
/** Feature name */
char *name;
};
/** Declare a named feature */
#define __feature_name __table ( char *, features, 01 )
#define __feature_name( category ) \
__table ( struct feature, features, category )
/** Construct a named feature */
#define FEATURE_NAME( text ) \
_FEATURE_NAME ( OBJECT, text )
#define _FEATURE_NAME( _name, text ) \
__FEATURE_NAME ( _name, text )
#define __FEATURE_NAME( _name, text ) \
char * __feature_ ## _name __feature_name = text;
#define FEATURE_NAME( category, text ) \
_FEATURE_NAME ( category, OBJECT, text )
#define _FEATURE_NAME( category, _name, text ) \
__FEATURE_NAME ( category, _name, text )
#define __FEATURE_NAME( category, _name, text ) \
struct feature __feature_ ## _name __feature_name ( category ) = { \
.name = text, \
};
/** Declare a feature */
#define FEATURE( text, feature_opt, version ) \
FEATURE_NAME ( text ); \
DHCP_FEATURE ( feature_opt, version );
#define FEATURE( category, text, feature_opt, version ) \
FEATURE_NAME ( category, text ); \
DHCP_FEATURE ( category, feature_opt, version );
#endif /* _GPXE_FEATURES_H */