diff options
Diffstat (limited to 'src/third_party/unwind/dist/src/ptrace/_UPT_access_reg.c')
| -rw-r--r-- | src/third_party/unwind/dist/src/ptrace/_UPT_access_reg.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/src/ptrace/_UPT_access_reg.c b/src/third_party/unwind/dist/src/ptrace/_UPT_access_reg.c index ce25c783b04..0e247053f13 100644 --- a/src/third_party/unwind/dist/src/ptrace/_UPT_access_reg.c +++ b/src/third_party/unwind/dist/src/ptrace/_UPT_access_reg.c @@ -268,6 +268,16 @@ _UPT_access_reg (unw_addr_space_t as, unw_regnum_t reg, unw_word_t *val, } #endif /* End of IA64 */ +#if UNW_TARGET_RISCV + if (reg == UNW_RISCV_X0) { + if (write) + goto badreg; + + *val = 0; + return 0; + } +#endif /* End of RISCV */ + if ((unsigned) reg >= ARRAY_SIZE (_UPT_reg_offset)) { #if UNW_DEBUG |