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Change directory command (cd)
07-11-2008
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sb2-show(1) sb2-show man page sb2-show(1) NAME
sb2-show - sb2 diagnostics tool SYNOPSIS
sb2-show [-b binary_name ] [-m mode ] [-f function ] [-D ] [-v ] command [parameters] DESCRIPTION
sb2-show is a tool for querying and testing what scratchbox2 does "behind the scenes". The two most common uses are testing path mapping (commands path and which ) and finding out how programs are executed (the exec command). Additionally, there are some commands that are intended to be used internally by scratchbox2 itself, and not so useful for a normal user. sb2-show must be executed inside a scratchbox2 session (see sb2(1) for details about creating sessions) COMMANDS
Common commands: path [path1] [path2] [pathN] Show mapping results for listed pathnames which [path1] [path2].. Show mappings of pathnames, a less verbose variant of the path command (useful when using sb2-show from scripts) exec program_path [arg1] [arg2].. Show how a program would be executed, together with environment modifications. realcwd Show real current working directory (Inside a session /bin/pwd will usually report virtual paths, and this is the only way to deter- mine the real wroking directory). Commands for non-interactive use and debugging of scratchbox2: exec-cmdline file [argv1] [argv2].. show execve() modifications on a single line (does not show full details, useful when using sb2-show from scripts) log-error 'message' Add an error message to the logfile log-warning 'message' Add a warning message to the logfile verify-pathlist-mappings required-fix [ignorelist] Reads list of paths from stdin and checks that all paths will be mapped to a required prefix. This is used by sb2-check-pkg-map- pings, (an internal utility). execluafile filename Load and execute Lua code from file. binarytype realpath detect & show type of program at realpath (which is an already mapped path) var variablename show value of an internal string variable libraryinterface show preload library interface version (the Lua <-> C code interface) qemu-debug-exec file argv0 [argv1] [argv2].. show command line that can be used to start target binary under qemu gdbserver OPTIONS
-v verbose. -b binary_name show using binary_name as name of the calling program -f function show using function as callers name (full name of library or system call) -D Ignore directories while verifying path lists (effective only for the verify-pathlist-mappings command) -t report elapsed time (real time elapsed while executing the command) -x file Load and execute Lua code from file before executing the command. Useful for debugging and tuning lua scripts of sb2. -X file Load and execute Lua code from file after executing the command. Useful for debugging and tuning lua scripts of sb2. -g port use port as qemu gdbserver listening port (default port is 1234). See command qemu-debug-exec EXAMPLES
Show where the /etc directory gets mapped: $ sb2 sb2-show path /etc /etc => /opt/maemo/tools/etc (readonly) (exact results depend on how sb2-init was executed; what mapping mode is the default, etc.) Typically, home directories are not mapped: $ sb2 sb2-show path /home/yourname /home/yourname => /home/yourname In development modes, host-compatible versions of tools are executed: $ sb2 sb2-show exec /bin/ls File /bin/ls Mapped /opt/maemo/tools/bin/ls (readonly) argv[0] /bin/ls ... But in the emulation mode, only target's executables are used. Try also: $ sb2 -e sb2-show exec /bin/ls SEE ALSO
sb2(1), sb2-config(1), sb2-logz(1), sb2-init(1) AUTHOR
Lauri Aarnio 2.2 17 December 2010 sb2-show(1)