aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/s390/bits
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/s390/bits')
-rw-r--r--sysdeps/s390/bits/byteswap.h146
-rw-r--r--sysdeps/s390/bits/link.h13
-rw-r--r--sysdeps/s390/bits/setjmp.h59
-rw-r--r--sysdeps/s390/bits/wordsize.h7
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