diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/syscall.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 0d3fff52e9..3ba3ef5719 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -218,7 +218,6 @@ _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count) #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count); #endif -_syscall2(int, sys_getpriority, int, which, int, who); #if defined(TARGET_NR__llseek) && defined(__NR_llseek) _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh); @@ -6445,10 +6444,21 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #endif case TARGET_NR_getpriority: - /* libc does special remapping of the return value of - * sys_getpriority() so it's just easiest to call - * sys_getpriority() directly rather than through libc. */ - ret = get_errno(sys_getpriority(arg1, arg2)); + /* Note that negative values are valid for getpriority, so we must + differentiate based on errno settings. */ + errno = 0; + ret = getpriority(arg1, arg2); + if (ret == -1 && errno != 0) { + ret = -host_to_target_errno(errno); + break; + } +#ifdef TARGET_ALPHA + /* Return value is the unbiased priority. Signal no error. */ + ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; +#else + /* Return value is a biased priority to avoid negative numbers. */ + ret = 20 - ret; +#endif break; case TARGET_NR_setpriority: ret = get_errno(setpriority(arg1, arg2, arg3)); |