From c9356be30741b5192c79038fa4f8a2ac5b5f35c1 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 10 Nov 2014 17:16:43 -0700 Subject: dm: Split the simple malloc() implementation into its own file The simple malloc() implementation is used when memory is tight. It provides a simple buffer with an incrementing pointer. At present the implementation is inside dlmalloc. Move it into its own file so that it is easier to find. Rather than using relocation as a signal that the full malloc() is available, add a special GD_FLG_FULL_MALLOC_INIT flag. This signals that the simple malloc() should no longer be used. In some cases, such as SPL, even the code space used by the full malloc() is wasteful. Add a CONFIG_SYS_MALLOC_SIMPLE option to provide only the simple malloc. In this case the full malloc is not available at all. It saves about 1KB of code space and about 0.5KB of data on Thumb 2. Acked-by: Tom Rini Signed-off-by: Simon Glass --- common/board_r.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'common/board_r.c') diff --git a/common/board_r.c b/common/board_r.c index 7c33900..19c6427 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -99,7 +99,8 @@ static int initr_trace(void) static int initr_reloc(void) { - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ + /* tell others: relocation done */ + gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT; bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); return 0; -- cgit v1.1