mirror of
https://gitlab.com/buildroot.org/buildroot.git
synced 2026-09-09 07:51:59 -09:00
f9867a725c
The DODEBUG=y option of uClibc causes uClibc to be built with -O0 and -DDEBUG, which has a significant runtime performance impact. Currently, DODEBUG=y is passed when BR2_ENABLE_DEBUG=y, but BR2_ENABLE_DEBUG is only about enabling debugging symbols, not about runtime debugging additions. The more recently added BR2_ENABLE_RUNTIME_DEBUG option is precisely designed for that, so we changed the logic to pass DODEBUG=y when BR2_ENABLE_RUNTIME_DEBUG=y, and not BR2_ENABLE_DEBUG=y. This allows to build uClibc with debugging symbols when BR2_ENABLE_DEBUG=y, without disabling optimizations and adding more debugging features that have a runtime performance impact. Signed-off-by: Ben Wolsieffer <Ben.Wolsieffer@hefring.com> [Thomas: extracted from https://patchwork.ozlabs.org/project/buildroot/patch/20220803200629.3172370-1-Ben.Wolsieffer@hefring.com/ and split into its own independent patch.] 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