diff options
Diffstat (limited to 'arch/um/kernel/skas/syscall.c')
| -rw-r--r-- | arch/um/kernel/skas/syscall.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c index d9ec0068b..1683b8efd 100644 --- a/arch/um/kernel/skas/syscall.c +++ b/arch/um/kernel/skas/syscall.c @@ -8,9 +8,7 @@ #include <kern_util.h> #include <sysdep/ptrace.h> #include <sysdep/syscalls.h> - -extern int syscall_table_size; -#define NR_SYSCALLS (syscall_table_size / sizeof(void *)) +#include <os.h> void handle_syscall(struct uml_pt_regs *r) { @@ -23,19 +21,12 @@ void handle_syscall(struct uml_pt_regs *r) goto out; } - /* - * This should go in the declaration of syscall, but when I do that, - * strace -f -c bash -c 'ls ; ls' breaks, sometimes not tracing - * children at all, sometimes hanging when bash doesn't see the first - * ls exit. - * The assembly looks functionally the same to me. This is - * gcc version 4.0.1 20050727 (Red Hat 4.0.1-5) - * in case it's a compiler bug. - */ - syscall = UPT_SYSCALL_NR(r); - if ((syscall >= NR_SYSCALLS) || (syscall < 0)) + syscall = get_syscall(r); + + if ((syscall > __NR_syscall_max) || syscall < 0) result = -ENOSYS; - else result = EXECUTE_SYSCALL(syscall, regs); + else + result = EXECUTE_SYSCALL(syscall, regs); out: PT_REGS_SET_SYSCALL_RETURN(regs, result); |