Re: [U-Boot] where is malloc()?
Thanks I see it now. -- View this message in context: http://u-boot.10912.n7.nabble.com/where-is-malloc-tp246389p246393.html Sent from the U-Boot mailing list archive at Nabble.com. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] U-Boot loading kernel from mmc question
I am trying to figure out how the bootm command in U-Boot works. It seems to be a state machine that goes from start->findos->findother (fdt)->loados etc. However I am having trouble understanding how, since my linux image is stored in some partition on the device (eMMC), does that get loaded into memory? Originally I thought this was what bootm_find_os and bootm_load_os does, but they don't seem to access the block devices or filesystem or contain code that reads in the linux and fdt images into memory. Am I missing a step here? -- View this message in context: http://u-boot.10912.n7.nabble.com/U-Boot-loading-kernel-from-mmc-question-tp246390.html Sent from the U-Boot mailing list archive at Nabble.com. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] where is malloc()?
I can find malloc.h describing that it uses a specific malloc. But I can't seem to find where the u-boot source keeps the malloc implementation. I see that in include/_exports.h it is defined: EXPORT_FUNC(malloc) Also there seems to be a dlmalloc.c that should define a void* malloc(size) function but I can't seem to find it in here. Is there some macro magic here? -- View this message in context: http://u-boot.10912.n7.nabble.com/where-is-malloc-tp246389.html Sent from the U-Boot mailing list archive at Nabble.com. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] how does board_init_f() -> board_init_r?
I am trying to modify the bootloader code for NVIDIA's jetson board. So I am looking at crt0.S. It seems that two builds happen, one with CONFIG_SPL_BUILD and one without. So you end up with two file, u-boot.bin and spl/u-boot-spl.bin. However, I am unable to find the code path that calls board_init_r() after board_init_f() finishes, although there are several candidates: 1) crt0.S - if CONFIG_SPL_BUILD was not defined, then it would fall straight through to board_init_r() - HOWEVER, for u-boot.bin, isn't CONFIG_SPL_BUILD defined in autoconf.h? Or is this some clever magic between how u-boot.bin and spl/u-boot-spl.bin are stitched together? 2) _weak board_init_f in arch/arm/lib/spl.c - HOWEVER, shouldn't this be overloaded by board_init_f in common/board_f.c? 3) board_init_f_r in common/board_f.c - HOWEVER, nothing calls board_init_f_r(). Can someone illuminate me on how this happens? -- View this message in context: http://u-boot.10912.n7.nabble.com/how-does-board-init-f-board-init-r-tp245816.html Sent from the U-Boot mailing list archive at Nabble.com. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
