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gcc installs a libstdcxx-...so-gdb.py file that gdb will load automatically when it loads libstdcxx.so, via the mechanism described at [1]. However, the auto-load file installed by gcc contains hardcoded paths referring to the location where the (external) toolchain was built, which are normally not available. Fix up the paths in the load file so that the pretty printers can be loaded automatically. Note that gdb will only auto-load the file if its location is marked as 'safe'. A subsequent commit will take care of that. Technically, there could be more than one load file, e.g. in lib and usr/lib, so fix them all. This was for example observed in BR2_TOOLCHAIN_EXTERNAL_ARM_AARCH64. In a very specific case with a local custom toolchain, there were actually two 'python' directories, which would break the sed command, so arbitrarily limit to the first one encountered. [1] https://sourceware.org/gdb/onlinedocs/gdb/objfile_002dgdbdotext-file.html Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches