On Wed, 2007-09-26 at 14:06 -0600, Thayne Harbaugh wrote: > The linux-user getpriority() syscall goes through the libc wrapper. > This causes a problem because the libc wrapper remaps the return value > from the kernel. This patch calls the kernel getpriority syscall > directly.
I didn't see any discussion about this nor did I see it committed. Were there any concerns or objections? It fixes several failures in the LTP test suite. The bug is that the kernel returns -1 on error and 1-40 on success - the libc wrapper remaps this to -1 or error and -20 - 19 on succes (errno must be cleared and checked for the -1 case to determine if there was an error). If qemu uses the libc wrapper then the return value is aleady remapped to negative numbers - which appear to be errors.
