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authorPratyush Anand <panand@redhat.com>2016-11-02 14:40:46 +0530
committerCatalin Marinas <catalin.marinas@arm.com>2016-11-07 18:15:21 +0000
commit9842ceae9fa8deae141533d52a6ead7666962c09 (patch)
tree773c1a5e348b02db818a7a9b271a27d05d4a7c9f /arch/arm64/Kconfig
parentarm64: introduce mm context flag to keep 32 bit task information (diff)
downloadlinux-dev-9842ceae9fa8deae141533d52a6ead7666962c09.tar.xz
linux-dev-9842ceae9fa8deae141533d52a6ead7666962c09.zip
arm64: Add uprobe support
This patch adds support for uprobe on ARM64 architecture. Unit tests for following have been done so far and they have been found working 1. Step-able instructions, like sub, ldr, add etc. 2. Simulation-able like ret, cbnz, cbz etc. 3. uretprobe 4. Reject-able instructions like sev, wfe etc. 5. trapped and abort xol path 6. probe at unaligned user address. 7. longjump test cases Currently it does not support aarch32 instruction probing. Signed-off-by: Pratyush Anand <panand@redhat.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 969ef880d234..77a807a844ac 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -238,6 +238,9 @@ config PGTABLE_LEVELS
default 3 if ARM64_16K_PAGES && ARM64_VA_BITS_47
default 4 if !ARM64_64K_PAGES && ARM64_VA_BITS_48
+config ARCH_SUPPORTS_UPROBES
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"