diff options
Diffstat (limited to 'common/dlmalloc.c')
| -rw-r--r-- | common/dlmalloc.c | 85 |
1 files changed, 62 insertions, 23 deletions
diff --git a/common/dlmalloc.c b/common/dlmalloc.c index 3c70d5d..f987339 100644 --- a/common/dlmalloc.c +++ b/common/dlmalloc.c @@ -1,5 +1,9 @@ #include <common.h> +#ifdef CONFIG_SANDBOX +#define DEBUG +#endif + #if 0 /* Moved to malloc.h */ /* ---------- To make a malloc.h, start cutting here ------------ */ @@ -220,7 +224,7 @@ */ - + /* Preliminaries */ @@ -930,6 +934,8 @@ struct mallinfo mALLINFo(); #endif /* 0 */ /* Moved to malloc.h */ #include <malloc.h> +#include <asm/io.h> + #ifdef DEBUG #if __STD_C static void malloc_update_mallinfo (void); @@ -1132,7 +1138,7 @@ gAllocatedSize)) #endif - + /* Type declarations @@ -1272,7 +1278,7 @@ nextchunk-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ serviced via calls to mmap, and then later released via munmap. */ - + /* sizes, alignments */ #define SIZE_SZ (sizeof(INTERNAL_SIZE_T)) @@ -1297,7 +1303,7 @@ nextchunk-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ #define aligned_OK(m) (((unsigned long)((m)) & (MALLOC_ALIGN_MASK)) == 0) - + /* Physical chunk operations @@ -1332,7 +1338,7 @@ nextchunk-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ #define chunk_at_offset(p, s) ((mchunkptr)(((char*)(p)) + (s))) - + /* Dealing with use bits @@ -1371,7 +1377,7 @@ nextchunk-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ (((mchunkptr)(((char*)(p)) + (s)))->size &= ~(PREV_INUSE)) - + /* Dealing with size fields @@ -1394,7 +1400,7 @@ nextchunk-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ #define set_foot(p, s) (((mchunkptr)((char*)(p) + (s)))->prev_size = (s)) - + /* @@ -1566,7 +1572,7 @@ void mem_malloc_init(ulong start, ulong size) #define is_small_request(nb) (nb < MAX_SMALLBIN_SIZE - SMALLBIN_WIDTH) - + /* To help compensate for the large number of bins, a one-level index @@ -1590,7 +1596,7 @@ void mem_malloc_init(ulong start, ulong size) #define clear_binblock(ii) (binblocks_w = (mbinptr)(binblocks_r & ~(idx2binblock(ii)))) - + /* Other static bookkeeping data */ @@ -1628,7 +1634,7 @@ static unsigned int max_n_mmaps = 0; static unsigned long max_mmapped_mem = 0; #endif - + /* Debugging support @@ -1769,7 +1775,7 @@ static void do_check_malloced_chunk(p, s) mchunkptr p; INTERNAL_SIZE_T s; #define check_malloced_chunk(P,N) #endif - + /* Macro-based internal utilities @@ -1841,7 +1847,7 @@ static void do_check_malloced_chunk(p, s) mchunkptr p; INTERNAL_SIZE_T s; (last_remainder->fd = last_remainder->bk = last_remainder) - + /* Routines dealing with mmap(). */ @@ -1972,7 +1978,7 @@ static mchunkptr mremap_chunk(p, new_size) mchunkptr p; size_t new_size; #endif /* HAVE_MMAP */ - + /* Extend the top-most chunk by obtaining memory from system. @@ -2089,7 +2095,7 @@ static void malloc_extend_top(nb) INTERNAL_SIZE_T nb; } - + /* Main public routines */ @@ -2174,6 +2180,20 @@ Void_t* mALLOc(bytes) size_t bytes; INTERNAL_SIZE_T nb; +#ifdef CONFIG_SYS_MALLOC_F_LEN + if (!(gd->flags & GD_FLG_RELOC)) { + ulong new_ptr; + void *ptr; + + new_ptr = gd->malloc_ptr + bytes; + if (new_ptr > gd->malloc_limit) + panic("Out of pre-reloc memory"); + ptr = map_sysmem(gd->malloc_base + gd->malloc_ptr, bytes); + gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr)); + return ptr; + } +#endif + /* check if mem_malloc_init() was run */ if ((mem_malloc_start == 0) && (mem_malloc_end == 0)) { /* not initialized yet */ @@ -2396,7 +2416,7 @@ Void_t* mALLOc(bytes) size_t bytes; } - + /* @@ -2437,6 +2457,12 @@ void fREe(mem) Void_t* mem; mchunkptr fwd; /* misc temp for linking */ int islr; /* track whether merging with last_remainder */ +#ifdef CONFIG_SYS_MALLOC_F_LEN + /* free() is a no-op - all the memory will be freed on relocation */ + if (!(gd->flags & GD_FLG_RELOC)) + return; +#endif + if (mem == NULL) /* free(0) has no effect */ return; @@ -2513,7 +2539,7 @@ void fREe(mem) Void_t* mem; } - + /* @@ -2588,6 +2614,13 @@ Void_t* rEALLOc(oldmem, bytes) Void_t* oldmem; size_t bytes; /* realloc of null is supposed to be same as malloc */ if (oldmem == NULL) return mALLOc(bytes); +#ifdef CONFIG_SYS_MALLOC_F_LEN + if (!(gd->flags & GD_FLG_RELOC)) { + /* This is harder to support and should not be needed */ + panic("pre-reloc realloc() is not supported"); + } +#endif + newp = oldp = mem2chunk(oldmem); newsize = oldsize = chunksize(oldp); @@ -2750,7 +2783,7 @@ Void_t* rEALLOc(oldmem, bytes) Void_t* oldmem; size_t bytes; } - + /* @@ -2868,7 +2901,7 @@ Void_t* mEMALIGn(alignment, bytes) size_t alignment; size_t bytes; } - + /* @@ -2933,6 +2966,12 @@ Void_t* cALLOc(n, elem_size) size_t n; size_t elem_size; return NULL; else { +#ifdef CONFIG_SYS_MALLOC_F_LEN + if (!(gd->flags & GD_FLG_RELOC)) { + MALLOC_ZERO(mem, sz); + return mem; + } +#endif p = mem2chunk(mem); /* Two optional cases in which clearing not necessary */ @@ -2975,7 +3014,7 @@ void cfree(mem) Void_t *mem; } #endif - + /* @@ -3056,7 +3095,7 @@ int malloc_trim(pad) size_t pad; } } - + /* malloc_usable_size: @@ -3092,7 +3131,7 @@ size_t malloc_usable_size(mem) Void_t* mem; } - + /* Utility to update current_mallinfo for malloc_stats and mallinfo() */ @@ -3136,7 +3175,7 @@ static void malloc_update_mallinfo() } #endif /* DEBUG */ - + /* @@ -3183,7 +3222,7 @@ struct mallinfo mALLINFo() #endif /* DEBUG */ - + /* mallopt: |