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-rw-r--r--target/riscv/cpu.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 4851890844..9de34d7099 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -391,16 +391,16 @@ static const TypeInfo riscv_cpu_type_info = {
char *riscv_isa_string(RISCVCPU *cpu)
{
int i;
- size_t maxlen = 5 + ctz32(cpu->env.misa);
- char *isa_string = g_new0(char, maxlen);
- snprintf(isa_string, maxlen, "rv%d", TARGET_LONG_BITS);
+ const size_t maxlen = sizeof("rv128") + sizeof(riscv_exts) + 1;
+ char *isa_str = g_new(char, maxlen);
+ char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", TARGET_LONG_BITS);
for (i = 0; i < sizeof(riscv_exts); i++) {
if (cpu->env.misa & RV(riscv_exts[i])) {
- isa_string[strlen(isa_string)] = riscv_exts[i] - 'A' + 'a';
-
+ *p++ = qemu_tolower(riscv_exts[i]);
}
}
- return isa_string;
+ *p = '\0';
+ return isa_str;
}
void riscv_cpu_list(FILE *f, fprintf_function cpu_fprintf)