Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
config/debug/gdb.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun May 20 13:48:26 2007 +0000 (2007-05-20)
changeset 112 ea15433daba0
parent 96 aa1a9fbd6eb8
child 138 dc4ce917245f
permissions -rw-r--r--
Ah! I finally have a progress bar that doesn't stall the build!
- pipe size in Linux is only 8*512=4096 bytes
- pipe size is not setable
- when the feeding process spits out data faster than the eating
process can read it, then the feeding process stalls after 4KiB
of data sent to the pipe
- for us, the progress bar would spawn a sub-shell every line,
and the sub-shell would in turn spawn a 'date' command.
Which was sloooww as hell, and would cause some kind of a
starvation: the pipe was full most of the time, and the
feeding process was stalled all this time.

Now, we use internal variables and a little hack based onan offset
to determine the elapsed time. Much faster this way, but still
CPU-intensive. 
     1 # GDB menu

     2 

     3 menuconfig GDB

     4     bool

     5     prompt "gdb"

     6     default n

     7     help

     8       Enable gdb for the target

     9 

    10 if GDB

    11 

    12 config GDB_CROSS

    13     bool

    14     prompt "Cross-gdb"

    15     default y

    16     help

    17       Build and install a cross-gdb for the target, and to run on host.

    18 

    19 config GDB_NATIVE

    20     bool

    21     prompt "Native gdb"

    22     default n

    23     depends on EXPERIMENTAL

    24     help

    25       Build and install a native gdb for the target, to run on the target.

    26 

    27 choice

    28     bool

    29     prompt "gdb version"

    30 

    31 config GDB_V_snapshot

    32     bool

    33     prompt "snapshot"

    34     depends on EXPERIMENTAL

    35 

    36 config GDB_V_6_2_1

    37     bool

    38     prompt "6.2.1"

    39     depends on OBSOLETE

    40 

    41 config GDB_V_6_3

    42     bool

    43     prompt "6.3"

    44     depends on OBSOLETE

    45 

    46 config GDB_V_6_4

    47     bool

    48     prompt "6.4"

    49     depends on OBSOLETE

    50 

    51 config GDB_V_6_5

    52     bool

    53     prompt "6.5"

    54 

    55 config GDB_V_6_6

    56     bool

    57     prompt "6.6"

    58 

    59 # CT_INSERT_VERSION_ABOVE

    60 # Don't remove above line!

    61 endchoice

    62 

    63 config GDB_VERSION

    64     string

    65     default "snapshot" if GDB_V_snapshot

    66     default "6.2.1" if GDB_V_6_2_1

    67     default "6.3" if GDB_V_6_3

    68     default "6.4" if GDB_V_6_4

    69     default "6.5" if GDB_V_6_5

    70     default "6.6" if GDB_V_6_6

    71 # CT_INSERT_VERSION_STRING_ABOVE

    72 # Don't remove above line!

    73 

    74 endif

    75
crosstool-ng