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 | 84 |
1 files changed, 55 insertions, 29 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h index e89e6a1425..f7bfb8dac1 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h +++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h @@ -45,8 +45,6 @@ number. Linus said he will make sure the no syscall returns a value in -1 .. -4095 as a valid result so we can savely test with -4095. */ -#define SYSCALL_ERROR_LABEL 0f - #undef PSEUDO #define PSEUDO(name, syscall_name, args) \ .text; \ @@ -54,42 +52,70 @@ DO_CALL (syscall_name, args); \ lhi %r4,-4095 ; \ clr %r2,%r4 ; \ - jnl SYSCALL_ERROR_LABEL ; \ - L(pseudo_end): + jnl SYSCALL_ERROR_LABEL #undef PSEUDO_END #define PSEUDO_END(name) \ SYSCALL_ERROR_HANDLER; \ END (name) -#ifndef _LIBC_REENTRANT #ifndef PIC -#define SYSCALL_ERROR_HANDLER \ -0: lcr %r2,%r2 ; \ - basr %r1,0 ; \ -1: l %r1,2f-1b(%r1) \ - st %r2,0(%r1) \ - lhi %r2,-1 \ - br %r14 \ -2: .long errno +# define SYSCALL_ERROR_LABEL 0f +# define SYSCALL_ERROR_HANDLER \ +0: basr %r1,0; \ +1: l %r1,2f-1b(%r1); \ + br %r1; \ +2: .long syscall_error #else -#define SYSCALL_ERROR_HANDLER \ -0: basr %r1,0 ; \ -1: al %r1,2f-1b(%r1) ; \ - l %r1,errno@GOT12(%r1) ; \ - lcr %r2,%r2 ; \ - st %r2,0(%r1) ; \ - lhi %r2,-1 ; \ - br %r14 ; \ -2: .long _GLOBAL_OFFSET_TABLE_-1b +# if RTLD_PRIVATE_ERRNO +# define SYSCALL_ERROR_LABEL 0f +# define SYSCALL_ERROR_HANDLER \ +0: basr %r1,0; \ +1: al %r1,2f-1b(%r1); \ + lcr %r2,%r2; \ + st %r2,0(%r1); \ + lhi %r2,-1; \ + br %r14; \ +2: .long errno-1b +# elif defined _LIBC_REENTRANT +# if USE___THREAD +# ifndef NOT_IN_libc +# define SYSCALL_ERROR_ERRNO __libc_errno +# else +# define SYSCALL_ERROR_ERRNO errno +# endif +# define SYSCALL_ERROR_LABEL 0f +# define SYSCALL_ERROR_HANDLER \ +0: lcr %r0,%r2; \ + basr %r1,0; \ +1: al %r1,2f-1b(%r1); \ + l %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1) \ + ear %r2,%a0 \ + st %r0,0(%r1,%r2); \ + lhi %r2,-1; \ + br %r14; \ +2: .long _GLOBAL_OFFSET_TABLE_-1b +# else +# define SYSCALL_ERROR_LABEL 0f +# define SYSCALL_ERROR_HANDLER \ +0: basr %r1,0; \ +1: al %r1,2f-1b(%r1); \ + br %r1; \ +2: .long syscall_error@plt-1b +# endif +# else +# define SYSCALL_ERROR_LABEL 0f +# define SYSCALL_ERROR_HANDLER \ +0: basr %r1,0; \ +1: al %r1,2f-1b(%r1); \ + l %r1,errno@GOT(%r1); \ + lcr %r2,%r2; \ + st %r2,0(%r1); \ + lhi %r2,-1; \ + br %r14; \ +2: .long _GLOBAL_OFFSET_TABLE_-1b +# endif /* _LIBC_REENTRANT */ #endif /* PIC */ -#else -#define SYSCALL_ERROR_HANDLER \ -0: basr %r1,0 ; \ -1: al %r1,2f-1b(%r1) ; \ - br %r1 ; \ -2: .long __syscall_error@PLT-1b -#endif /* _LIBC_REENTRANT */ /* Linux takes system call arguments in registers: |