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-rw-r--r--ports/sysdeps/m68k/bits/byteswap.h87
-rw-r--r--ports/sysdeps/m68k/bits/endian.h7
-rw-r--r--ports/sysdeps/m68k/bits/link.h57
-rw-r--r--ports/sysdeps/m68k/bits/setjmp.h46
4 files changed, 197 insertions, 0 deletions
diff --git a/ports/sysdeps/m68k/bits/byteswap.h b/ports/sysdeps/m68k/bits/byteswap.h
new file mode 100644
index 0000000000..029fb32a5c
--- /dev/null
+++ b/ports/sysdeps/m68k/bits/byteswap.h
@@ -0,0 +1,87 @@
+/* Macros to swap the order of bytes in integer values. m68k version.
+ Copyright (C) 1997, 2002, 2008, 2011 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
+
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
+/* Swap bytes in 16 bit value. We don't provide an assembler version
+ because GCC is smart enough to generate optimal assembler output, and
+ this allows for better cse. */
+#define __bswap_constant_16(x) \
+ ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8))
+
+static __inline unsigned short int
+__bswap_16 (unsigned short int __bsx)
+{
+ return __bswap_constant_16 (__bsx);
+}
+
+/* Swap bytes in 32 bit value. */
+#define __bswap_constant_32(x) \
+ ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) | \
+ (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24))
+
+#if !defined(__mcoldfire__)
+static __inline unsigned int
+__bswap_32 (unsigned int __bsx)
+{
+ if (__builtin_constant_p (__bsx))
+ return __bswap_constant_32 (__bsx);
+ __asm__ __volatile__ ("ror%.w %#8, %0;"
+ "swap %0;"
+ "ror%.w %#8, %0"
+ : "+d" (__bsx));
+ return __bsx;
+}
+#else
+static __inline unsigned int
+__bswap_32 (unsigned int __bsx)
+{
+ return __bswap_constant_32 (__bsx);
+}
+#endif
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value. */
+# define __bswap_constant_64(x) \
+ __extension__ \
+ ((((x) & 0xff00000000000000ull) >> 56) \
+ | (((x) & 0x00ff000000000000ull) >> 40) \
+ | (((x) & 0x0000ff0000000000ull) >> 24) \
+ | (((x) & 0x000000ff00000000ull) >> 8) \
+ | (((x) & 0x00000000ff000000ull) << 8) \
+ | (((x) & 0x0000000000ff0000ull) << 24) \
+ | (((x) & 0x000000000000ff00ull) << 40) \
+ | (((x) & 0x00000000000000ffull) << 56))
+
+/* Swap bytes in 64 bit value. */
+static __inline unsigned long long
+__bswap_64 (unsigned long long __bsx)
+{
+ if (__builtin_constant_p (__bsx))
+ return __bswap_constant_64 (__bsx);
+ return (__bswap_32 (__bsx >> 32)
+ | ((unsigned long long) __bswap_32 (__bsx) << 32));
+}
+#endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/ports/sysdeps/m68k/bits/endian.h b/ports/sysdeps/m68k/bits/endian.h
new file mode 100644
index 0000000000..bf4ecb60a4
--- /dev/null
+++ b/ports/sysdeps/m68k/bits/endian.h
@@ -0,0 +1,7 @@
+/* m68k is big-endian. */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/ports/sysdeps/m68k/bits/link.h b/ports/sysdeps/m68k/bits/link.h
new file mode 100644
index 0000000000..ed7da2c4c0
--- /dev/null
+++ b/ports/sysdeps/m68k/bits/link.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 2005, 2009 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _LINK_H
+# error "Never include <bits/link.h> directly; use <link.h> instead."
+#endif
+
+
+/* Registers for entry into PLT on M68K. */
+typedef struct La_m68k_regs
+{
+ uint32_t lr_a0;
+ uint32_t lr_a1;
+ uint32_t lr_sp;
+} La_m68k_regs;
+
+/* Return values for calls from PLT on M68K. */
+typedef struct La_m68k_retval
+{
+ uint32_t lrv_d0;
+ uint32_t lrv_d1;
+ uint32_t lrv_a0;
+ long double lrv_fp0;
+} La_m68k_retval;
+
+
+__BEGIN_DECLS
+
+extern Elf32_Addr la_m68k_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ La_m68k_regs *__regs,
+ unsigned int *__flags,
+ const char *__symname,
+ long int *__framesizep);
+extern unsigned int la_m68k_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ const La_m68k_regs *__inregs,
+ La_m68k_retval *__outregs,
+ const char *__symname);
+
+__END_DECLS
diff --git a/ports/sysdeps/m68k/bits/setjmp.h b/ports/sysdeps/m68k/bits/setjmp.h
new file mode 100644
index 0000000000..bc494c0588
--- /dev/null
+++ b/ports/sysdeps/m68k/bits/setjmp.h
@@ -0,0 +1,46 @@
+/* Copyright (C) 1997,1998,2005,2006,2008 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, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Define the machine-dependent type `jmp_buf'. m68k version. */
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+#if !defined _SETJMP_H && !defined _PTHREAD_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+typedef struct __jmp_buf_internal_tag
+ {
+ /* There are eight 4-byte data registers, but D0 is not saved. */
+ long int __dregs[7];
+
+ /* There are six 4-byte address registers, plus the FP and SP. */
+ int *__aregs[6];
+ int *__fp;
+ int *__sp;
+
+#if defined __HAVE_68881__ || defined __HAVE_FPU__
+ /* There are eight floating point registers which
+ are saved in IEEE 96-bit extended format. */
+ char __fpregs[8 * (96 / 8)];
+#elif defined __mcffpu__
+ char __fpregs[8 * (64 / 8)];
+#endif
+
+ } __jmp_buf[1];
+
+#endif /* bits/setjmp.h */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-17 22:15:05 +0000