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lib: rand: introduce new configs: CONFIG_LIB_RAND and CONFIG_LIB_HW_RAND

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New configs:
- CONFIG_LIB_RAND    - to enable implementation of rand library in lib/rand.c
- CONFIG_LIB_HW_RAND - to enable hardware based implementations of lib rand

Other changes:
- add CONFIG_LIB_RAND to boards configs which needs rand()
- put only one rand.o dependency in lib/Makefile

CONFIG_LIB_HW_RAND should be defined for drivers which implements rand library
(declared in include/common.h):
- void srand(unsigned int seed)
- unsigned int rand(void)
- unsigned int rand_r(unsigned int *seedp)

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Tom Rini <trini@ti.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
This commit is contained in:
Przemyslaw Marczak
2014-03-25 10:58:19 +01:00
committed by Tom Rini
parent 01a0c64762
commit 3c1c68cc03
10 changed files with 10 additions and 6 deletions
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4
lib/Makefile
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@@ -62,8 +62,6 @@ obj-y += time.o
obj-$(CONFIG_TRACE) += trace.o
obj-$(CONFIG_BOOTP_PXE) += uuid.o
obj-y += vsprintf.o
obj-$(CONFIG_RANDOM_MACADDR) += rand.o
obj-$(CONFIG_BOOTP_RANDOM_DELAY) += rand.o
obj-$(CONFIG_CMD_LINK_LOCAL) += rand.o
obj-$(CONFIG_LIB_RAND) += rand.o
subdir-ccflags-$(CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED) += -O2