A spurious trailing "\n" in the gdb syscall format string used for SYS_WRITE0 meant that gdb would reject the remote syscall, with the effect that the output from the guest was silently dropped. Remove the newline so that gdb accepts the packet.
Cc: qemu-sta...@nongnu.org --- target-arm/arm-semi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target-arm/arm-semi.c b/target-arm/arm-semi.c index a2a7369..42522a7 100644 --- a/target-arm/arm-semi.c +++ b/target-arm/arm-semi.c @@ -260,7 +260,7 @@ uint32_t do_arm_semihosting(CPUARMState *env) return (uint32_t)-1; len = strlen(s); if (use_gdb_syscalls()) { - gdb_do_syscall(arm_semi_cb, "write,2,%x,%x\n", args, len); + gdb_do_syscall(arm_semi_cb, "write,2,%x,%x", args, len); ret = env->regs[0]; } else { ret = write(STDERR_FILENO, s, len); -- 1.9.1