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authorGuo Ren <guoren@linux.alibaba.com>2020-12-17 16:01:44 +0000
committerPalmer Dabbelt <palmerdabbelt@google.com>2021-01-14 15:09:08 -0800
commit74784081aac8a0f3636965fc230e2d3b7cc123c6 (patch)
tree5fa2a78dc3467d7d3e53525da8011e4c512f2f1f /arch/riscv/include/asm/thread_info.h
parentriscv: Add KPROBES_ON_FTRACE supported (diff)
downloadlinux-dev-74784081aac8a0f3636965fc230e2d3b7cc123c6.tar.xz
linux-dev-74784081aac8a0f3636965fc230e2d3b7cc123c6.zip
riscv: Add uprobes supported
This patch adds support for uprobes on riscv architecture. Just like kprobe, it support single-step and simulate instructions. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Reviewed-by: Pekka Enberg <penberg@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/include/asm/thread_info.h')
-rw-r--r--arch/riscv/include/asm/thread_info.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 97bf5a1575d2..0e549a3089b3 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -75,6 +75,7 @@ struct thread_info {
#define TIF_SYSCALL_AUDIT 7 /* syscall auditing */
#define TIF_SECCOMP 8 /* syscall secure computing */
#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
+#define TIF_UPROBE 10 /* uprobe breakpoint or singlestep */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
@@ -84,10 +85,11 @@ struct thread_info {
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
+#define _TIF_UPROBE (1 << TIF_UPROBE)
#define _TIF_WORK_MASK \
(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NEED_RESCHED | \
- _TIF_NOTIFY_SIGNAL)
+ _TIF_NOTIFY_SIGNAL | _TIF_UPROBE)
#define _TIF_SYSCALL_WORK \
(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT | _TIF_SYSCALL_AUDIT | \