diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h index f7bfb8dac1..af8515b195 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h +++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h @@ -133,7 +133,12 @@ */ #define DO_CALL(syscall, args) \ - svc SYS_ify (syscall) + .if SYS_ify (syscall) < 256; \ + svc SYS_ify (syscall); \ + .else; \ + lhi %r1,SYS_ify (syscall); \ + svc 0; \ + .endif #define ret \ br 14 @@ -154,8 +159,8 @@ #undef INTERNAL_SYSCALL_DECL #define INTERNAL_SYSCALL_DECL(err) do { } while (0) -#undef INTERNAL_SYSCALL -#define INTERNAL_SYSCALL(name, err, nr, args...) \ +#undef INTERNAL_SYSCALL_DIRECT +#define INTERNAL_SYSCALL_DIRECT(name, err, nr, args...) \ ({ \ DECLARGS_##nr(args) \ register int _ret asm("2"); \ @@ -166,6 +171,25 @@ : "memory" ); \ _ret; }) +#undef INTERNAL_SYSCALL_SVC0 +#define INTERNAL_SYSCALL_SVC0(name, err, nr, args...) \ + ({ \ + DECLARGS_##nr(args) \ + register unsigned long _nr asm("1") = (unsigned long)(__NR_##name); \ + register int _ret asm("2"); \ + asm volatile ( \ + "svc 0\n\t" \ + : "=d" (_ret) \ + : "d" (_nr), "i" (__NR_##name) ASMFMT_##nr \ + : "memory" ); \ + _ret; }) + +#undef INTERNAL_SYSCALL +#define INTERNAL_SYSCALL(name, err, nr, args...) \ + (((__NR_##name) < 256) ? \ + INTERNAL_SYSCALL_DIRECT(name, err, nr, args) : \ + INTERNAL_SYSCALL_SVC0(name, err,nr, args)) + #undef INTERNAL_SYSCALL_ERROR_P #define INTERNAL_SYSCALL_ERROR_P(val, err) \ ((unsigned int) (val) >= 0xfffff001u) |