diff options
| -rw-r--r-- | common/Kconfig | 16 | ||||
| -rw-r--r-- | common/Makefile | 3 | ||||
| -rw-r--r-- | common/dummy_malloc.c | 26 |
3 files changed, 44 insertions, 1 deletions
diff --git a/common/Kconfig b/common/Kconfig index c3449a9c2d..7d2367b0c3 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -148,6 +148,22 @@ config EXPERIMENTAL bool prompt "Prompt for experimental code" +choice + prompt "malloc implementation" + +config MALLOC_DLMALLOC + bool "dlmalloc" + +config MALLOC_DUMMY + bool "dummy malloc" + depends on SHELL_NONE + help + select this option to use a dummy malloc implementation. With this + memory is never freed. This is suitable for well tested noninteractive + environments only. + +endchoice + config MODULES depends on HAS_MODULES depends on EXPERIMENTAL diff --git a/common/Makefile b/common/Makefile index aa2c2220a6..9fed2ae521 100644 --- a/common/Makefile +++ b/common/Makefile @@ -9,7 +9,8 @@ obj-$(CONFIG_POLLER) += poller.o obj-$(CONFIG_BLOCK) += block.o obj-y += memory.o -obj-y += dlmalloc.o +obj-$(CONFIG_MALLOC_DLMALLOC) += dlmalloc.o +obj-$(CONFIG_MALLOC_DUMMY) += dummy_malloc.o obj-y += clock.o obj-y += version.o obj-$(CONFIG_COMMAND_SUPPORT) += command.o diff --git a/common/dummy_malloc.c b/common/dummy_malloc.c new file mode 100644 index 0000000000..213e51d851 --- /dev/null +++ b/common/dummy_malloc.c @@ -0,0 +1,26 @@ +#include <common.h> +#include <malloc.h> + +void *memalign(size_t alignment, size_t bytes) +{ + unsigned long mem = (unsigned long)sbrk(bytes + alignment); + + mem = (mem + alignment) & ~(alignment - 1); + + return (void *)mem; +} + +void *malloc(size_t size) +{ + return memalign(8, size); +} + +void free(void *ptr) +{ +} + +void *realloc(void *ptr, size_t size) +{ + BUG(); +} + |