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malloc_simple: Add Kconfig option for using only malloc_simple in the SPL

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common/dlmalloc.c is quite big, both in .text and .data usage, therefor
on some boards the SPL is build to use only malloc_simple.c and not the
dlmalloc.c code. This is done in various include/configs/foo.h with the
following construct:

 #ifdef CONFIG_SPL_BUILD
 #define CONFIG_SYS_MALLOC_SIMPLE
 #endif

This commit introduces a SPL_MALLOC_SIMPLE Kconfig bool which allows
selecting this functionality through Kconfig instead.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Hans de Goede 2015-09-13 14:45:15 +02:00
parent 8656c4f76f
commit 1eb0c03c21
5 changed files with 14 additions and 4 deletions
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10
Kconfig
View file

@ -114,6 +114,16 @@ config SPL
help
If you want to build SPL as well as the normal image, say Y.
config SPL_SYS_MALLOC_SIMPLE
bool
depends on SPL
prompt "Only use malloc_simple functions in the spl"
help
Say Y here to only use the *_simple malloc functions from
malloc_simple.c, rather then using the versions from dlmalloc.c
this will make the SPL binary smaller at the cost of more heap
usage as the *_simple malloc functions do not re-use free-ed mem.
config SPL_STACK_R
depends on SPL
bool "Enable SDRAM location for SPL stack"

2
common/malloc_simple.c
View file

@ -40,7 +40,7 @@ void *memalign_simple(size_t align, size_t bytes)
return ptr;
}
#ifdef CONFIG_SYS_MALLOC_SIMPLE
#if CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
void *calloc(size_t nmemb, size_t elem_size)
{
size_t size = nmemb * elem_size;

2
include/_exports.h
View file

@ -23,7 +23,7 @@
EXPORT_FUNC(dummy, void, free_hdlr, void)
#endif
EXPORT_FUNC(malloc, void *, malloc, size_t)
#ifndef CONFIG_SYS_MALLOC_SIMPLE
#if !CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
EXPORT_FUNC(free, void, free, void *)
#endif
EXPORT_FUNC(udelay, void, udelay, unsigned long)

2
include/exports.h
View file

@ -19,7 +19,7 @@ int printf(const char* fmt, ...);
void install_hdlr(int, interrupt_handler_t, void*);
void free_hdlr(int);
void *malloc(size_t);
#ifndef CONFIG_SYS_MALLOC_SIMPLE
#if !CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
void free(void*);
#endif
void __udelay(unsigned long);

2
include/malloc.h
View file

@ -872,7 +872,7 @@ extern Void_t* sbrk();
#else
#ifdef CONFIG_SYS_MALLOC_SIMPLE
#if CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
#define malloc malloc_simple
#define realloc realloc_simple
#define memalign memalign_simple