summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/tile/bits/syscalls.h
diff options
context:
space:
mode:
authorWaldemar Brodkorb <wbx@uclibc-ng.org>2018-02-04 15:34:18 +0000
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2018-03-12 20:11:14 +0100
commit490e84f5e146485a26dea2f41279a4ff13aaca05 (patch)
tree03b9eab7297c5ad571b548b5ed916f17be78bf48 /libc/sysdeps/linux/tile/bits/syscalls.h
parent6e627523ee4b3fc00c30dcff74c2adf93e2b6840 (diff)
tile: add basic support for tilegx
This adds basic support for tile architecture. Only static binaries, no ld.so or threading support. Tested with qemu-tilegx only.
Diffstat (limited to 'libc/sysdeps/linux/tile/bits/syscalls.h')
-rw-r--r--libc/sysdeps/linux/tile/bits/syscalls.h151
1 files changed, 151 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/tile/bits/syscalls.h b/libc/sysdeps/linux/tile/bits/syscalls.h
new file mode 100644
index 000000000..f4447a888
--- /dev/null
+++ b/libc/sysdeps/linux/tile/bits/syscalls.h
@@ -0,0 +1,151 @@
+/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
+
+ 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 _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/* Define a macro which expands inline into the wrapper code for a system
+ call. */
+# undef INLINE_SYSCALL
+# define INLINE_SYSCALL(name, nr, args...) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (_sc_err); \
+ unsigned long _sc_val = INTERNAL_SYSCALL (name, _sc_err, nr, args); \
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sc_val, _sc_err), 0)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (_sc_val, _sc_err)); \
+ _sc_val = -1; \
+ } \
+ (long) _sc_val; \
+ })
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+ internal_syscall##nr (SYS_ify (name), err, args)
+
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ internal_syscall##nr (number, err, args)
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) int err
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) ({ (void) (val); (err) != 0; })
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) ({ (void) (val); (err); })
+
+#define internal_syscall0(num, err, dummy...) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#define internal_syscall1(num, err, arg0) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num), "R00" (arg0) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#define internal_syscall2(num, err, arg0, arg1) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num), "R00" (arg0), "R01" (arg1) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#define internal_syscall3(num, err, arg0, arg1, arg2) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#define internal_syscall4(num, err, arg0, arg1, arg2, arg3) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2), \
+ "R03" (arg3) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#define internal_syscall5(num, err, arg0, arg1, arg2, arg3, arg4) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2), \
+ "R03" (arg3), "R04" (arg4) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#define internal_syscall6(num, err, arg0, arg1, arg2, arg3, arg4, arg5) \
+ ({ \
+ long _sys_result, __SYSCALL_CLOBBER_DECLS; \
+ __asm__ __volatile__ ( \
+ "swint1" \
+ : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS \
+ : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2), \
+ "R03" (arg3), "R04" (arg4), "R05" (arg5) \
+ : __SYSCALL_CLOBBERS); \
+ _sys_result; \
+ })
+
+#undef __SYSCALL_CLOBBERS
+#define __SYSCALL_CLOBBERS \
+ "r6", "r7", \
+ "r8", "r9", "r11", "r12", "r13", "r14", "r15", \
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
+ "r24", "r25", "r26", "r27", "r28", "r29", "memory"
+
+/* gcc doesn't seem to allow an input operand to be clobbered, so we
+ fake it with dummy outputs. */
+#define __SYSCALL_CLOBBER_DECLS \
+ _clobber_r2, _clobber_r3, _clobber_r4, _clobber_r5, _clobber_r10
+
+#define __SYSCALL_CLOBBER_OUTPUTS \
+ "=R02" (_clobber_r2), "=R03" (_clobber_r3), "=R04" (_clobber_r4), \
+ "=R05" (_clobber_r5), "=R10" (_clobber_r10)
+
+#endif