Hello, On Wed, 16 Aug 2017 08:09:06 +0530, Lokesh Vutla wrote:
> > Should we put global_data within the .bss section, so that it gets > > zero-initialized automatically? Should we zero-initialize it explicitly? > > I am not sure how SuperH allocates the space for global data but > typically the following two function takes care of allocating and > zeroing global data(at least for arm): > > In file common/init/board_init.c > board_init_f_alloc_reserve() > board_init_f_init_reserve() > > May be, using these two functions might solve your problem. Seems like a good idea indeed, I hadn't noticed those functions. If I understand correctly, and after looking at how a few architectures do, they: - Initialize the stack pointer just below the U-Boot entry point - Call board_init_f_alloc_reserve(), to allocate enough space for the global data on the stack - Call board_init_f_init_reserve() to zero initialize it I guess the SH code can be adapted to use this logic, I'll have a look into that. Could take a while though, since I'm not fluent in SH assembly. Thanks for the hint! Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot