diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2015-12-19 11:49:13 +0100 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2015-12-19 11:49:13 +0100 |
commit | 0fa85119cd480c1ded7a81ed64f723fe16a15355 (patch) | |
tree | 8648434601c5112a1d9ab091ab11507fe88e0962 /arch/um/kernel/skas/syscall.c | |
parent | d6ccc3ec95251d8d3276f2900b59cbc468dd74f4 (diff) | |
parent | 1eab0e42450c6038e2bb17da438370fe639973f3 (diff) | |
download | op-kernel-dev-0fa85119cd480c1ded7a81ed64f723fe16a15355.zip op-kernel-dev-0fa85119cd480c1ded7a81ed64f723fe16a15355.tar.gz |
Merge branch 'linus' into x86/cleanups
Pull in upstream changes so we can apply depending patches.
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 d9ec006..1683b8e 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); |