diff options
Diffstat (limited to 'extra')
| -rw-r--r-- | extra/Configs/Config.in | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index 1b3357ded..d2a52f055 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -33,6 +33,17 @@ config BUILD_UCLIBC_LDSO be built for your target architecture. If this option is available, to you, then you almost certainly want to answer Y. +config LDSO_LDD_SUPPORT + bool "Native shared library loader 'ldd' support" + depends on BUILD_UCLIBC_LDSO + default y + help + Enable this to enable all the code needed to support traditional ldd, + which executes the shared library loader to resolve all dependancies + and then provide a list of shared libraries that are required for an + application to function. Disabling this option will makes uClibc's + shared library loader a little bit smaller. Most people will answer Y. + config UCLIBC_HAS_THREADS bool "POSIX Threading Support" default y @@ -264,6 +275,55 @@ config DODEBUG If you are doing development and want to debug uClibc, answer Y. Otherwise, answer N. + +config SUPPORT_LD_DEBUG + bool "Build the shared library loader with debugging support" + depends on BUILD_UCLIBC_LDSO + default y + help + Answer Y here to enable all the extra code needed to debug the uClibc + native shared library loader. The level of debugging noise that is + generated depends on the LD_DEBUG environment variable... Just set + LD_DEBUG to something like: 'LD_DEBUG=token1,token2,.. prog' to + debug your application. Diagnostic messages will then be printed to + the stderr. + + For now these debugging tokens are available: + detail provide more information for some options + move display copy processings + symbols display symbol table processing + reloc display relocation processing; detail shows the relocation patch + nofixups never fixes up jump relocations + bindings displays the resolve processing (function calls); detail shows the relocation patch + all Enable everything! + + The additional environment variable: + LD_DEBUG_OUTPUT=file + redirects the diagnostics to an output file created using + the specified name and the process id as a suffix. + + An excellent start is simply: + $ LD_DEBUG=binding,move,symbols,reloc,detail ./appname + or to log everything to a file named 'logfile', try this + $ LD_DEBUG=all LD_DEBUG_OUTPUT=logfile ./appname + + If you are doing development and want to debug uClibc's shared library + loader, answer Y. Mere mortals answer N. + +config SUPPORT_LD_DEBUG_EARLY + bool "Build the shared library loader with early debugging support" + depends on BUILD_UCLIBC_LDSO + default y + help + Answer Y here to if you find the uClibc shared library loader is + crashing or otherwise not working very early on. This is typical + only when starting a new port when you havn't figured out how to + properly get the values for argc, argv, environ, etc. This method + allows a degree of visibility into the very early shared library + loader initialization process. If you are doing development and want + to debug the uClibc shared library loader early initialization, + answer Y. Mere mortals answer N. + endmenu |