Le 21/08/2019 à 16:21, Sandra Loosemore a écrit :
This patch fixes a bug that caused semihosted exit to always return
status 0; it was incorrectly using the value of register R_ARG0 (which
contains the HOSTED_EXIT request number) instead of register R_ARG1.
Signed-off-by: Sandra Loosemore <address@hidden>
---
target/nios2/nios2-semi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/nios2/nios2-semi.c b/target/nios2/nios2-semi.c
index d7a80dd..06c0861 100644
--- a/target/nios2/nios2-semi.c
+++ b/target/nios2/nios2-semi.c
@@ -215,8 +215,8 @@ void do_nios2_semihosting(CPUNios2State *env)
args = env->regs[R_ARG1];
switch (nr) {
case HOSTED_EXIT:
- gdb_exit(env, env->regs[R_ARG0]);
- exit(env->regs[R_ARG0]);
+ gdb_exit(env, env->regs[R_ARG1]);
+ exit(env->regs[R_ARG1]);
It's weird: in line 215, env->regs[R_ARG1] is args.
Are you sure it's not something like:
GET_ARG(0)
gdb_exit(env, arg0);
exit(arg0);
same for m68k.
Did you check the kernel code?