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22fca0106e
Add an option to eglibc to optimize for size using -Os. Signed-off-by: Richard Strand <richard.strand@icomera.com>
156 lines
4.2 KiB
Plaintext
156 lines
4.2 KiB
Plaintext
# eglibc options
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# depends on ! BARE_METAL && ARCH_USE_MMU
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config LIBC_eglibc
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select LIBC_SUPPORT_NPTL
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select LIBC_SUPPORT_LINUXTHREADS
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help
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EGLIBC (Embedded GLIBC) is a variant of the standard GNU GLIBC
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that is designed to work well on embedded systems. EGLIBC strives
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to be source and binary compatible with GLIBC. Its goals include
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a reduced footprint, configurable components, and improved
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cross-compilation support. EGLIBC also includes some embedded ports
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(such as e500/spe) that are normally separate add-ons of GLIBC.
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choice
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bool
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prompt "eglibc version"
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# Don't remove next line
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# CT_INSERT_VERSION_BELOW
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config LIBC_V_2_10
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bool
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prompt "2_10"
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config EGLIBC_V_2_9
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bool
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prompt "2_9"
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config EGLIBC_V_2_8
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bool
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prompt "2_8 (OBSOLETE)"
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depends on OBSOLETE
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config EGLIBC_V_2_7
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bool
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prompt "2_7 (OBSOLETE)"
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depends on OBSOLETE
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config EGLIBC_V_2_6
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bool
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prompt "2_6 (OBSOLETE)"
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depends on OBSOLETE
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config EGLIBC_V_2_5
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bool
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prompt "2_5 (OBSOLETE)"
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depends on OBSOLETE
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config EGLIBC_V_TRUNK
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bool
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prompt "'trunk'"
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help
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Selecting this will export the trunk of the eglibc subversion repository.
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endchoice
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config LIBC_VERSION
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string
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# Don't remove next line
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# CT_INSERT_VERSION_STRING_BELOW
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default "2_10" if LIBC_V_2_10
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default "2_9" if EGLIBC_V_2_9
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default "2_8" if EGLIBC_V_2_8
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default "2_7" if EGLIBC_V_2_7
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default "2_6" if EGLIBC_V_2_6
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default "2_5" if EGLIBC_V_2_5
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default "trunk" if EGLIBC_V_TRUNK
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config EGLIBC_REVISION
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string
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prompt "Revision to use"
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default "HEAD"
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help
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Enter the revision of trunk you want to use.
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Default is HEAD.
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A revision argument can be one of:
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NUMBER revision number
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'{' DATE '}' revision at start of the date (*)
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'HEAD' latest in repository
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(*) If you want to use a date, please use ISO-8601 formats if
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at all possible.
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config EGLIBC_CHECKOUT
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bool
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prompt "checkout instead of export"
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default y if EGLIBC_V_TRUNK
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default n if ! EGLIBC_V_TRUNK
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help
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By default, the eglibc download will be an export of the subversion
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repository. If you say 'y' here, then the repository will instead be
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checked-out, so that you can update it later.
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Note that crosstool-NG will *not* update your working copy, you will
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have to do that yourself.
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config EGLIBC_OPT_SIZE
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bool
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prompt "optimize eglibc for size (-Os)"
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help
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Optimize eglibc for size using -Os instead of -O2. This will make eglibc
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smaller but may make it slower.
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config EGLIBC_CUSTOM_CONFIG
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bool
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prompt "Use custom configuration file"
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default n
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help
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Use a custom configuration file to disable some features in the eglibc
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library. The configuration file options are described in detail in the
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option-groups.def file in the eglibc source directory.
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if EGLIBC_CUSTOM_CONFIG
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config EGLIBC_OPTION_GROUPS_FILE
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string
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prompt "Path to the option-groups configuration file"
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default ""
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help
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Path to the option groups configuration file.
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config EGLIBC_BUNDLED_NSS_CONFIG
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bool
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prompt "Use bundled NSS config file"
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default y
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help
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Use minimal nsswitch configuration file bundled in eglibc.
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This option is only meaningful when runtime nss configuration
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is disabled in the option groups file.
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config EGLIBC_NSS_CONFIG_FILE
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string
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prompt "Path to the NSS config file"
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default ""
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depends on !EGLIBC_BUNDLED_NSS_CONFIG
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help
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Path to the nsswitch configuration file
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config EGLIBC_BUNDLED_NSS_FUNCTIONS
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bool
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prompt "Use bundled NSS functions file"
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default y
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help
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Use minimal nsswitch functions file bundled in eglibc.
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This option is only meaningful when runtime nss configuration
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is disabled in the option groups file.
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config EGLIBC_NSS_FUNCTIONS_FILE
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string
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prompt "Path to the NSS functions file"
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default ""
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depends on !EGLIBC_BUNDLED_NSS_FUNCTIONS
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help
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Path to the nsswitch functions file
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endif
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