Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
config/libc/uClibc.in
author Bryan Hundven <bryanhundven@gmail.com>
Sun Jun 26 03:26:54 2011 -0700 (2011-06-26)
changeset 2515 364b06df9e3a
parent 2444 896cb0d36c1a
child 2518 aa833630f29c
permissions -rw-r--r--
glibc: Refactor startfiles/headers into do_libc_backend()

Refactor the contents of 'do_libc_start_files()' and 'do_libc()' into a
parameterized 'do_libc_backend()'. 'do_libc_start_files()' and 'do_libc()'
call 'do_libc_backend()' with either 'libc_mode=startfiles' or
'libc_mode=final' (respectively) so that the startfiles/headers and
the final libc builds are configured and built with the same options.

One example of where this is needed is when building a mips toolchain.
Previously, if you were building an n32 toolchain, you wouldn't have
noticed an issue, because if '-mabi' is not in CFLAGS, n32 is the
default:

http://sourceware.org/git/?p=glibc-ports.git;a=blob;f=sysdeps/mips/preconfigure;hb=HEAD

But when trying to build an o32 or n64 toolchain the build would
have failed. This is because (e)glibc expects "-mabi={o32,n32,n64}" to be
in CFLAGS, but was not previously provided in 'do_libc_start_files()'.
The build failure would happen in the shared-core gcc when it tries to
configure an n64 or o32 gcc with an n32 libc.

A simpler solution would have been to just add TARGET_CFLAGS to configure
in 'do_libc_start_files()', but this way makes configure and make
consistent for both steps.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com> 
     1 # uClibc options

     2 

     3 ## depends on ! MINGW32 && ! BARE_METAL

     4 ##

     5 ## select LIBC_SUPPORT_LINUXTHREADS

     6 ## select LIBC_SUPPORT_THREADS_NONE

     7 ##

     8 ## help The de-facto standard for embeded linux systems.

     9 ## help

    10 ## help Highly configurable, thus as feature-rich as you

    11 ## help need, without compromising for size.

    12 

    13 choice

    14     bool

    15     prompt "uClibc version"

    16 # Don't remove next line

    17 # CT_INSERT_VERSION_BELOW

    18 

    19 config LIBC_UCLIBC_V_0_9_31

    20     bool

    21     prompt "0.9.31 (EXPERIMENTAL)"

    22     depends on EXPERIMENTAL

    23     select LIBC_UCLIBC_0_9_30_or_later

    24 

    25 config LIBC_UCLIBC_V_0_9_30_3

    26     bool

    27     prompt "0.9.30.3"

    28     select LIBC_UCLIBC_0_9_30_or_later

    29 

    30 config LIBC_UCLIBC_V_0_9_30_2

    31     bool

    32     prompt "0.9.30.2"

    33     select LIBC_UCLIBC_0_9_30_or_later

    34 

    35 config LIBC_UCLIBC_V_0_9_30_1

    36     bool

    37     prompt "0.9.30.1"

    38     select LIBC_UCLIBC_0_9_30_or_later

    39 

    40 config LIBC_UCLIBC_V_0_9_30

    41     bool

    42     prompt "0.9.30"

    43     select LIBC_UCLIBC_0_9_30_or_later

    44 

    45 config LIBC_UCLIBC_V_0_9_29

    46     bool

    47     prompt "0.9.29 (OBSOLETE)"

    48     depends on OBSOLETE

    49 

    50 config LIBC_UCLIBC_V_0_9_28_3

    51     bool

    52     prompt "0.9.28.3 (OBSOLETE)"

    53     depends on OBSOLETE

    54 

    55 # As of today (20100702) we can be pretty sure that every

    56 # snapshots made since a month ago are post -0.9.30.

    57 

    58 config LIBC_UCLIBC_V_snapshot

    59     bool

    60     prompt "latest snapshot (EXPERIMENTAL)"

    61     depends on EXPERIMENTAL

    62     select LIBC_SUPPORT_NPTL

    63     select LIBC_UCLIBC_0_9_30_or_later

    64 

    65 config LIBC_UCLIBC_V_specific_date

    66     bool

    67     prompt "<specific date> (EXPERIMENTAL)"

    68     depends on EXPERIMENTAL

    69     select LIBC_SUPPORT_NPTL

    70     select LIBC_UCLIBC_0_9_30_or_later

    71 

    72 endchoice

    73 

    74 config LIBC_VERSION

    75     string

    76     prompt "Enter date (YYYYMMDD)" if LIBC_UCLIBC_V_specific_date

    77 # Don't remove next line

    78 # CT_INSERT_VERSION_STRING_BELOW

    79     default "0.9.31" if LIBC_UCLIBC_V_0_9_31

    80     default "0.9.30.3" if LIBC_UCLIBC_V_0_9_30_3

    81     default "0.9.30.2" if LIBC_UCLIBC_V_0_9_30_2

    82     default "0.9.30.1" if LIBC_UCLIBC_V_0_9_30_1

    83     default "0.9.30" if LIBC_UCLIBC_V_0_9_30

    84     default "0.9.29" if LIBC_UCLIBC_V_0_9_29

    85     default "0.9.28.3" if LIBC_UCLIBC_V_0_9_28_3

    86     default "snapshot" if LIBC_UCLIBC_V_snapshot

    87 

    88 config LIBC_UCLIBC_0_9_30_or_later

    89     bool

    90     select LIBC_UCLIBC_PARALLEL

    91 

    92 config LIBC_UCLIBC_PARALLEL

    93     bool

    94 

    95 choice

    96     bool

    97     prompt "uClibc verbosity:"

    98     default LIBC_UCLIBC_VERBOSITY_0

    99 

   100 config LIBC_UCLIBC_VERBOSITY_0

   101     bool

   102     prompt "Quiet build"

   103     help

   104       Print terse command indications.

   105 

   106 config LIBC_UCLIBC_VERBOSITY_1

   107     bool

   108     prompt "Brief build (show defines, ld flags)"

   109     help

   110       Print simplified command lines.

   111 

   112 config LIBC_UCLIBC_VERBOSITY_2

   113     bool

   114     prompt "Very verbose build"

   115     help

   116       Print full command lines.

   117 

   118 endchoice

   119 

   120 config LIBC_UCLIBC_VERBOSITY

   121     string

   122     default ""      if LIBC_UCLIBC_VERBOSITY_0

   123     default "V=1"   if LIBC_UCLIBC_VERBOSITY_1

   124     default "V=2"   if LIBC_UCLIBC_VERBOSITY_2

   125 

   126 choice

   127     bool

   128     prompt "Debug level"

   129     default LIBC_UCLIBC_DEBUG_LEVEL_0

   130 

   131 config LIBC_UCLIBC_DEBUG_LEVEL_0

   132     bool

   133     prompt "none"

   134 

   135 config LIBC_UCLIBC_DEBUG_LEVEL_1

   136     bool

   137     prompt "minimal"

   138 

   139 config LIBC_UCLIBC_DEBUG_LEVEL_2

   140     bool

   141     prompt "all"

   142 

   143 endchoice

   144 

   145 config LIBC_UCLIBC_DEBUG_LEVEL

   146     int

   147     default 0 if LIBC_UCLIBC_DEBUG_LEVEL_0

   148     default 1 if LIBC_UCLIBC_DEBUG_LEVEL_1

   149     default 2 if LIBC_UCLIBC_DEBUG_LEVEL_2

   150 

   151 config LIBC_UCLIBC_CONFIG_FILE

   152     string

   153     prompt "Configuration file"

   154     default ""

   155     help

   156       Path to the configuration file.

   157       

   158       You _must_ provide one (for now).
crosstool-ng