Hi all,
I'm doing the relocation work for NDS32 architecture. Currently I've encountered bin relocation problem on malloc(). I've called malloc_bin_reloc() in my lib/board.c however the malloc for env_relocate still get problem. Hope someone whom has experience could help me and give me some suggestion.
The relocation parameters are list as below. 1. relocation Offset is: 03fc4000. 2. Three parameters to call relocate_code() and then passed to board_init_r() is addr_sp: 03f41f60, id: 03f41f6c, addr: 03fc4000 3. mem_malloc_init related parameters are: mem_malloc_init: mem_malloc_start: 03F42000, size: 00082000 mem_malloc_init: mem_malloc_start: 03F42000, mem_malloc_end: 03FC4000
4. gd->reloc_off = dest_addr = 0x3fc4000 (The binary of u-boot is relocated from 0x0 to 0x3fc4000.)
5. All cache is disabled.
6. The first call malloc() will be called is 29 bytes memory allocation in himport_r(). Hence the procedure will into "if (is_small_request(nb)) " in malloc() in dlmalloc.c. The first malloc() will usually fail and execute malloc_extend_top(). However, after malloc_extend_top(), we should be able to get the first allocated memory.
But I've found a really strange problem when the first malloc() within himport_r(). That is I will continually get malloc() is fail if the first env import in himport_r() is fail. If I do the first memory allocate before the malloc() in himport_r(), then the hash table and the continue himport_r() will be success. Is there anything I should do before or after bin relocation? If anyone has experience with the same problem, please give me some advice and suggestions for helping on this issue
The following two debugging log is the default env import process which the first result is env import fail, and the second result is env import success while the first malloc() is called before himport_r() is called.
A. Default env import failed. himport_r: htab addr: 03feb250, env addr: 03fe2e14, size: 0000001d, sep: 00000000, flag: 00000000 malloc: mem_malloc_start: 03F42000, mem_malloc_end: 03FC4000 val: victim: 03fea71c, last_remainder->fd: 03fea6f4, last_remaider: 03fea6f4 remainder_size: ffffffd8, top: 03fea6ec, MINSIZE: 00000010 remainder_size: ffffffd8, top: 03f42000, MINSIZE: 00000010 himport_r: can't malloc 29 bytes ERROR: Environment import failed: errno = 12
at env_common.c:194/set_default_env()
malloc: mem_malloc_start: 03F42000, mem_malloc_end: 03FC4000 val: victim: 03fea734, last_remainder->fd: 03fea6f4, last_remaider: 03fea6f4 victim=top: top: addr: 03fea6f4, val: 03f42000 malloc: mem_malloc_start: 03F42000, mem_malloc_end: 03FC4000 val: victim: 03fea76c, last_remainder->fd: 03fea6f4, last_remaider: 03fea6f4 victim=top: top: addr: 03fea6f4, val: 03f42040 In: serial Out: serial Err: serial malloc: mem_malloc_start: 03F42000, mem_malloc_end: 03FC4000 val: victim: 03fea704, last_remainder->fd: 03fea6f4, last_remaider: 03fea6f4 victim=top: top: addr: 03fea6f4, val: 03f420b8 ## Error inserting "stdin" variable, errno=12 (nomem)
B. The default env is imported successfully and we need the first malloc() been called before the first call himport_r().
val: victim: 03fea7cc, last_remainder->fd: 03fea7a4, last_remaider: 03fea7a4 remainder_size: ffffffd8, top: 03fea79c, MINSIZE: 00000010 after malloc_extend_top: remainder_size: ffffffd8, top: 03f42000, MINSIZE: 00000010 board_init_r: test: 00000000 val: victim: 03fea7cc, last_remainder->fd: 03fea7a4, last_remaider: 03fea7a4 victim=top: top: addr: 03fea7a4, val: 03f42000, remainder_size: 00000fd8 chunk2mem(victim): 03f42008 board_init_r: test: 03f42008 env_reloc *** Warning - bad CRC, using default environment
himport_r: htab addr: 03feb300, env addr: 03fe2e3c, size: 0000001d, sep: 00000000, flag: 00000000 val: victim: 03fea7cc, last_remainder->fd: 03fea7a4, last_remaider: 03fea7a4 victim=top: top: addr: 03fea7a4, val: 03f42028, remainder_size: 00000fb0 chunk2mem(victim): 03f42030 Destroy Hash Table: 03feb300 table = (null) Create Hash Table: N=67 val: victim: 03fea9bc, last_remainder->fd: 03fea7a4, last_remaider: 03fea7a4 victim=top: top: addr: 03fea7a4, val: 03f42050, remainder_size: 00000c78 chunk2mem(victim): 03f42058
Thank for your help.