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authorAnanth N Mavinakayanahalli <ananth@in.ibm.com>2008-03-04 14:28:37 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-04 16:35:11 -0800
commit9edddaa200df18e08fe0cf21036e8ae467b1363c (patch)
tree26f5319fac24fb6c76b1276b19725caeb5ec24bc /arch
parent8182ec49a73729334f5a6c65a607ba7009ebd6d6 (diff)
downloadop-kernel-dev-9edddaa200df18e08fe0cf21036e8ae467b1363c.zip
op-kernel-dev-9edddaa200df18e08fe0cf21036e8ae467b1363c.tar.gz
Kprobes: indicate kretprobe support in Kconfig
Add CONFIG_HAVE_KRETPROBES to the arch/<arch>/Kconfig file for relevant architectures with kprobes support. This facilitates easy handling of in-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on kretprobes being present in the kernel. Thanks to Sam Ravnborg for helping make the patch more lean. Per Mathieu's suggestion, added CONFIG_KRETPROBES and fixed up dependencies. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/Kconfig7
-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/ia64/Kconfig1
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/s390/Kconfig1
-rw-r--r--arch/sparc64/Kconfig1
-rw-r--r--arch/x86/Kconfig1
7 files changed, 13 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 3d72dc3..694c9af 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -27,5 +27,12 @@ config KPROBES
for kernel debugging, non-intrusive instrumentation and testing.
If in doubt, say "N".
+config KRETPROBES
+ def_bool y
+ depends on KPROBES && HAVE_KRETPROBES
+
config HAVE_KPROBES
def_bool n
+
+config HAVE_KRETPROBES
+ def_bool n
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 16b82e1..955fc53 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -12,6 +12,7 @@ config ARM
select SYS_SUPPORTS_APM_EMULATION
select HAVE_OPROFILE
select HAVE_KPROBES if (!XIP_KERNEL)
+ select HAVE_KRETPROBES if (HAVE_KPROBES)
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index dff9edf..56762d3 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -18,6 +18,7 @@ config IA64
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_KPROBES
+ select HAVE_KRETPROBES
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5b8d838..1189d8d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -90,6 +90,7 @@ config PPC
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_KPROBES
+ select HAVE_KRETPROBES
config EARLY_PRINTK
bool
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b21444b..9892827 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -61,6 +61,7 @@ config S390
def_bool y
select HAVE_OPROFILE
select HAVE_KPROBES
+ select HAVE_KRETPROBES
source "init/Kconfig"
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 3af378d..463d1be 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -10,6 +10,7 @@ config SPARC
default y
select HAVE_OPROFILE
select HAVE_KPROBES
+ select HAVE_KRETPROBES
config SPARC64
bool
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 53800b8..f41c953 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -21,6 +21,7 @@ config X86
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_KPROBES
+ select HAVE_KRETPROBES
select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
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