search for: arena_head

...I've been doing some deep code diving and I seem to have found a discrepancy between code comments and reality. This difference could hint at a bug or performance degradation, but I doubt it. I thought to ask to get clarification. In syslinux/core/mem/malloc.h, the comments and definition for arena_header, ARENA_PADDING and free_arena_header are: /* * This structure should be a power of two. This becomes the * alignment unit. */ struct arena_header { malloc_tag_t tag; size_t attrs; /* Bits 0..1: Type 2..3: Heap, 4..31: MSB of the size */ struct free_arena_header *next,...

From: Brett Walker <brett.walker at geometry.com.au> Remove a discrepancy between code comments and the definition for arena_header, ARENA_PADDING and free_arena_header. When the size of int and pointer are both 32-bits; and compiled with DEBUG_MALLOC undefined; the following are true: sizeof(arena_header) == 16 and sizeof(free_arena_header) == 56. To correct this, the type of _pad needs to be changed from size_t to uint8_t...

...syslinux-3.11/com32/lib/realloc.c --- /tmp/syslinux-3.11/com32/lib/realloc.c 2004-11-10 22:31:50.000000000 +0000 +++ syslinux-3.11/com32/lib/realloc.c 2006-01-14 23:37:52.000000000 +0000 @@ -24,7 +24,7 @@ } /* Add the obligatory arena header, and round up */ - size = (size+2*sizeof(struct arena_header)-1) & ARENA_SIZE_MASK; + size = (size+2*sizeof(struct arena_header)-1) & ~ARENA_SIZE_MASK; ah = (struct free_arena_header *) ((struct arena_header *)ptr - 1);

Hello, I'm a student interested in the syslinux project of Gsoc. And Isincerely hope to have the opportunity to apply the "Dynamic linker/loader for modules" project. But it seems the #syslinux channel is not so active and I can't contact a mentor about that. Could anybody help me? Thank you!