Dear Simon
I just wanted to play around with the sandbox "arch" of u-boot maybe adding tun/tap support. Current head compiled successfully but crashed immediately after startup in board_init_f:
gd = malloc(sizeof(gd_t)); assert(gd);
memset((void *)gd, 0, sizeof(gd_t));
The simple reason was that malloc refers to u-boots internal malloc which is not initialized at this point. I added the following snippet
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c index 685793e..c98ca61 100644 --- a/arch/sandbox/cpu/start.c +++ b/arch/sandbox/cpu/start.c @@ -21,8 +21,12 @@
#include <common.h>
+static uint8_t malloc_area[1024*1024*256]; + int main(int argc, char *argv[]) { + mem_malloc_init(malloc_area, sizeof(malloc_area)); + /*
and got the console working. Can you tell me what I am doing wrong when building u-boot from current head? Wouldn't it be a better approach to use the internal malloc of u-boot and acquire some memory from the system using mmap?
Regards Matthias