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dd67de1bd3
Since uClibc was bumped to 1.0.58 (c7fef3704c, "package/uclibc:
bump to 1.0.58"), the board hangs after starting init:
[ 1.231624] Run /sbin/init as init process
[ 1.235599] with arguments:
[ 1.238549] /sbin/init
[ 1.241331] earlyprintk
[ 1.244018] with environment:
[ 1.247143] HOME=/
[ 1.249554] TERM=linux
[ 1.252177] consoleblank=0
No error message is printed and the boot simply stalls at this
point.
The STM32F769 has no MMU, and uClibc's standard malloc()
implementation returns NULL for allocations performed during early
init on this target, causing init to fail.
Fix this by switching to MALLOC_SIMPLE, a plain mmap-based allocator
meant for small/noMMU systems, via a uClibc config fragment. Unlike
the STM32F429/STM32F469 fix, the fragment is kept board-specific
since the STM32F769 is a Cortex-M7 board and does not belong to the
stm32f4xx family.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
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 https://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