parisc: add ftrace (function and graph tracer) functionality
This patch adds the ftrace debugging functionality to the parisc kernel.
It will currently only work with 64bit kernels, because the gcc options -pg
and -ffunction-sections can't be enabled at the same time and -ffunction-sections
is still needed to be able to link 32bit kernels.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 0d42827..da6f669 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -56,7 +56,9 @@
# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
-cflags-y += -ffunction-sections
+ifndef CONFIG_FUNCTION_TRACER
+ cflags-y += -ffunction-sections
+endif
# select which processor to optimise for
cflags-$(CONFIG_PA7100) += -march=1.1 -mschedule=7100