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bsd-user: Don't truncate the return value from freebsd_syscall

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System call return values on FreeBSD are in a register (which is spelled
abi_long in qemu). This was being assigned into an int variable which
causes problems for 64bit targets.

Resolves: https://github.com/qemu-bsd-user/qemu-bsd-user/issues/40
Signed-off-by: Doug Rabson <dfr@rabson.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
[ Edited commit message for upstreaming into qemu-project ]
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Doug Rabson 2022-12-10 08:38:04 +00:00 committed by Warner Losh
parent 6276340310
commit 4cf41e8084
1 changed files with 1 additions and 1 deletions
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bsd-user/freebsd/os-syscall.c
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@ -512,7 +512,7 @@ abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
abi_long arg8) abi_long arg8)
{ {
CPUState *cpu = env_cpu(cpu_env); CPUState *cpu = env_cpu(cpu_env);
int ret; abi_long ret;
trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8); trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8);
if (do_strace) { if (do_strace) {