[lwp][rv64] restore tp register in arch_thread_signal_enter to fix user-mode memory access

2026-02-04 21:11:40 +00:00 · 2025-07-12 13:10:48 +00:00
parent 3c046646cb
commit e7a40ae6ec
2 changed files with 4 additions and 0 deletions
--- a/libcpu/risc-v/common64/stackframe.h
+++ b/libcpu/risc-v/common64/stackframe.h
@@ -41,6 +41,7 @@
 #define FRAME_OFF_SSTATUS   BYTES(2)
 #define FRAME_OFF_SP        BYTES(32)
 #define FRAME_OFF_GP        BYTES(3)
+#define FRAME_OFF_TP        BYTES(4)

 /* switch frame */
 #define RT_HW_SWITCH_CONTEXT_SSTATUS    0