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authorPaul Mundt <lethal@linux-sh.org>2008-12-17 15:33:43 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 18:44:47 +0900
commit740a3e677b70181d5e2b1458a27891209e3bf635 (patch)
tree9b5de2213f9a6ca036398bbc411a9982444d4351 /arch/sh/Kconfig.debug
parent8a655053ca1593dd160dac2a4ee638fdec037d86 (diff)
downloadop-kernel-dev-740a3e677b70181d5e2b1458a27891209e3bf635.zip
op-kernel-dev-740a3e677b70181d5e2b1458a27891209e3bf635.tar.gz
sh: Enable skipping of bss on debug platforms for sh32 also.
This enables the same functionality that sh64 has for sh32. When running on simulated hardware or via remote memory via the debug interface, memory is gauranteed to be zero on boot already, and skipping the zeroing of BSS has measurable boot time benefits. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
-rw-r--r--arch/sh/Kconfig.debug15
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 834a2d2..eef2fa9 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -98,6 +98,18 @@ config IRQSTACKS
for handling hard and soft interrupts. This can help avoid
overflowing the process kernel stacks.
+config SH_NO_BSS_INIT
+ bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
+ depends on DEBUG_KERNEL
+ default n
+ help
+ If running in painfully slow environments, such as an RTL
+ simulation or from remote memory via SHdebug, where the memory
+ can already be gauranteed to ber zeroed on boot, say Y.
+
+ For all other cases, say N. If this option seems perplexing, or
+ you aren't sure, say N.
+
config MORE_COMPILE_OPTIONS
bool "Add any additional compile options"
help
@@ -125,9 +137,6 @@ config SH_ALPHANUMERIC
bool "Enable debug outputs to on-board alphanumeric display"
depends on SH_CAYMAN
-config SH_NO_BSS_INIT
- bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
-
endif
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