diff options
Diffstat (limited to 'sysdeps/s390/bits')
| -rw-r--r-- | sysdeps/s390/bits/byteswap.h | 146 | ||||
| -rw-r--r-- | sysdeps/s390/bits/link.h | 13 | ||||
| -rw-r--r-- | sysdeps/s390/bits/setjmp.h | 59 | ||||
| -rw-r--r-- | sysdeps/s390/bits/wordsize.h | 7 |
4 files changed, 225 insertions, 0 deletions
diff --git a/sysdeps/s390/bits/byteswap.h b/sysdeps/s390/bits/byteswap.h new file mode 100644 index 0000000000..6a4b4ae425 --- /dev/null +++ b/sysdeps/s390/bits/byteswap.h @@ -0,0 +1,146 @@ +/* Macros to swap the order of bytes in integer values. s390 version. + Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#include <bits/wordsize.h> + +#ifndef _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +#define __bswap_constant_16(x) \ + ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) + +/* Swap bytes in 16 bit value. */ +#if defined __GNUC__ && __GNUC__ >= 2 +# if __WORDSIZE == 64 +# define __bswap_16(x) \ + (__extension__ \ + ({ unsigned short int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_16 (x); \ + else { \ + unsigned short int __tmp = (unsigned short int) (x); \ + __asm__ __volatile__ ( \ + "lrvh %0,%1" \ + : "=&d" (__v) : "m" (__tmp) ); \ + } \ + __v; })) +# else +# define __bswap_16(x) \ + (__extension__ \ + ({ unsigned short int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_16 (x); \ + else { \ + unsigned short int __tmp = (unsigned short int) (x); \ + __asm__ __volatile__ ( \ + "sr %0,%0\n" \ + "la 1,%1\n" \ + "icm %0,2,1(1)\n" \ + "ic %0,0(1)" \ + : "=&d" (__v) : "m" (__tmp) : "1"); \ + } \ + __v; })) +# endif +#else +/* This is better than nothing. */ +#define __bswap_16(x) __bswap_constant_16 (x) +#endif + +/* Swap bytes in 32 bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) + +#if defined __GNUC__ && __GNUC__ >= 2 +# if __WORDSIZE == 64 +# define __bswap_32(x) \ + (__extension__ \ + ({ unsigned int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_32 (x); \ + else { \ + unsigned int __tmp = (unsigned int) (x); \ + __asm__ __volatile__ ( \ + "lrv %0,%1" \ + : "=&d" (__v) : "m" (__tmp)); \ + } \ + __v; })) +# else +# define __bswap_32(x) \ + (__extension__ \ + ({ unsigned int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_32 (x); \ + else { \ + unsigned int __tmp = (unsigned int) (x); \ + __asm__ __volatile__ ( \ + "la 1,%1\n" \ + "icm %0,8,3(1)\n" \ + "icm %0,4,2(1)\n" \ + "icm %0,2,1(1)\n" \ + "ic %0,0(1)" \ + : "=&d" (__v) : "m" (__tmp) : "1"); \ + } \ + __v; })) +# endif +#else +# define __bswap_32(x) __bswap_constant_32 (x) +#endif + +/* Swap bytes in 64 bit value. */ +#define __bswap_constant_64(x) \ + ((((x)&0xff00000000000000) >> 56) | (((x)&0x00ff000000000000) >> 40) | \ + (((x)&0x0000ff0000000000) >> 24) | (((x)&0x000000ff00000000) >> 8) | \ + (((x)&0x00000000ff000000) << 8) | (((x)&0x0000000000ff0000) << 24) | \ + (((x)&0x000000000000ff00) << 40) | (((x)&0x00000000000000ff) << 56)) + +#if defined __GNUC__ && __GNUC__ >= 2 +# if __WORDSIZE == 64 +# define __bswap_64(x) \ + (__extension__ \ + ({ unsigned long __w; \ + if (__builtin_constant_p (x)) \ + __w = __bswap_constant_64 (x); \ + else { \ + unsigned long __tmp = (unsigned long) (x); \ + __asm__ __volatile__ ( \ + "lrvg %0,%1" \ + : "=&d" (__w) : "m" (__tmp)); \ + } \ + __w; })) +# else +# define __bswap_64(x) \ + __extension__ \ + ({ union { unsigned long long int __ll; \ + unsigned long int __l[2]; } __w, __r; \ + __w.__ll = (x); \ + __r.__l[0] = __bswap_32 (__w.__l[1]); \ + __r.__l[1] = __bswap_32 (__w.__l[0]); \ + __r.__ll; }) +# endif +#else +# define __bswap_64(x) __bswap_constant_64 (x) +#endif + +#endif /* _BITS_BYTESWAP_H */ diff --git a/sysdeps/s390/bits/link.h b/sysdeps/s390/bits/link.h new file mode 100644 index 0000000000..fc1fba363a --- /dev/null +++ b/sysdeps/s390/bits/link.h @@ -0,0 +1,13 @@ +#if __WORDSIZE == 64 +struct link_map_machine + { + Elf64_Addr plt; /* Address of .plt + 0x2e */ + Elf64_Addr gotplt; /* Address of .got + 0x18 */ + }; +#else +struct link_map_machine + { + Elf32_Addr plt; /* Address of .plt + 0x2c */ + Elf32_Addr gotplt; /* Address of .got + 0x0c */ + }; +#endif diff --git a/sysdeps/s390/bits/setjmp.h b/sysdeps/s390/bits/setjmp.h new file mode 100644 index 0000000000..35bc9a53f3 --- /dev/null +++ b/sysdeps/s390/bits/setjmp.h @@ -0,0 +1,59 @@ +/* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Define the machine-dependent type `jmp_buf'. IBM s390 version. */ + +#ifndef __S390_SETJMP_H__ +#define __S390_SETJMP_H__ + +#include <bits/wordsize.h> + +#define __JB_GPR6 0 +#define __JB_GPR7 1 +#define __JB_GPR8 2 +#define __JB_GPR9 3 +#define __JB_GPR10 4 +#define __JB_GPR11 5 +#define __JB_GPR12 6 +#define __JB_GPR13 7 +#define __JB_GPR14 8 +#define __JB_GPR15 9 + +#ifndef _ASM + +typedef struct { + /* We save registers 6-15. */ + long int __gregs[10]; + +#if __WORDSIZE == 64 + /* We save fpu registers 1, 3, 5 and 7. */ + long __fpregs[8]; +#else + /* We save fpu registers 4 and 6. */ + long __fpregs[4]; +#endif +} __jmp_buf[1]; + +#endif + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)->__gregs[__JB_GPR15]) + +#endif /* __S390_SETJMP_H__ */ diff --git a/sysdeps/s390/bits/wordsize.h b/sysdeps/s390/bits/wordsize.h new file mode 100644 index 0000000000..4f50d8586c --- /dev/null +++ b/sysdeps/s390/bits/wordsize.h @@ -0,0 +1,7 @@ +/* Determine the wordsize from the preprocessor defines. */ + +#if defined __s390x__ +# define __WORDSIZE 64 +#else +# define __WORDSIZE 32 +#endif |