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authorMegan Wachs <megan@sifive.com>2017-05-05 09:37:26 -0700
committerPalmer Dabbelt <palmer@dabbelt.com>2017-05-05 11:05:28 -0700
commitfa8d7adf33986302100313a791418423a7d4c758 (patch)
treec6e009ca973466d4d5100db97fb880e68c598f09 /src
parent325f17f6ec897e3eb4c2cb3ee620dcc74b49c9f3 (diff)
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Avoid accessing null target->reg_cache
GDB might request registers even if target was not successfully initialized.
Diffstat (limited to 'src')
-rw-r--r--src/target/riscv/riscv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/target/riscv/riscv.c b/src/target/riscv/riscv.c
index 42c2f87..d754cd6 100644
--- a/src/target/riscv/riscv.c
+++ b/src/target/riscv/riscv.c
@@ -414,6 +414,12 @@ static int riscv_get_gdb_reg_list(struct target *target,
if (!*reg_list) {
return ERROR_FAIL;
}
+
+ if (!target->reg_cache) {
+ LOG_ERROR("Target not initialized. Return ERROR_FAIL.");
+ return ERROR_FAIL;
+ }
+
for (int i = 0; i < *reg_list_size; i++) {
assert(target->reg_cache->reg_list[i].size > 0);
(*reg_list)[i] = &target->reg_cache->reg_list[i];