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Diffstat (limited to 'libc/sysdeps/linux/bfin/bits/syscalls.h')
-rw-r--r--libc/sysdeps/linux/bfin/bits/syscalls.h266
1 files changed, 137 insertions, 129 deletions
diff --git a/libc/sysdeps/linux/bfin/bits/syscalls.h b/libc/sysdeps/linux/bfin/bits/syscalls.h
index d8d628cab..475d193ce 100644
--- a/libc/sysdeps/linux/bfin/bits/syscalls.h
+++ b/libc/sysdeps/linux/bfin/bits/syscalls.h
@@ -4,169 +4,177 @@
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
-#include <features.h>
-
/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
* header files. It also defines the traditional `SYS_<name>' macros for older
* programs. */
#include <bits/sysnum.h>
-/* This code is mostly cut & paste from the uClinux bfin port */
+#ifndef __set_errno
+# define __set_errno(val) ((*__errno_location ()) = (val))
+#endif
+
+#ifndef SYS_ify
+# define SYS_ify(syscall_name) (__NR_##syscall_name)
+#endif
#ifndef __ASSEMBLER__
-#define __syscall_return(type, res) \
-do { \
- if ((unsigned long)(res) >= (unsigned long)(-125)) \
- { __set_errno(-(res)); \
- res = -1; \
- } \
- return (type) (res); \
+/* user-visible error numbers are in the range -1 - -4095: see <asm-frv/errno.h> */
+#if defined _LIBC && !defined __set_errno
+# define __syscall_return(type, res) \
+do { \
+ unsigned long __sr2 = (res); \
+ if (__builtin_expect ((unsigned long)(__sr2) \
+ >= (unsigned long)(-4095), 0)) { \
+ extern int __syscall_error (int); \
+ return (type) __syscall_error (__sr2); \
+ } \
+ return (type) (__sr2); \
} while (0)
+#else
+# define __syscall_return(type, res) \
+do { \
+ unsigned long __sr2 = (res); \
+ if (__builtin_expect ((unsigned long)(__sr2) \
+ >= (unsigned long)(-4095), 0)) { \
+ __set_errno (-__sr2); \
+ __sr2 = -1; \
+ } \
+ return (type) (__sr2); \
+} while (0)
+#endif
#define _syscall0(type,name) \
type name(void) { \
- long __res; \
- __asm__ __volatile__ ( \
- "p0 = %1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name) \
- : "CC", "P0"); \
-__syscall_return(type,__res); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "p0 = %1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name) \
+ : "memory","CC","R0","P0"); \
+ __syscall_return(type,__res); \
}
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) { \
- long __res; \
- __asm__ __volatile__ ( \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "a" ((long)(arg1)) \
- : "CC", "R0", "P0"); \
-__syscall_return(type,__res); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "r0=%2;\n\t" \
+ "p0=%1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name), \
+ "rm" ((long)(arg1)) \
+ : "memory","CC","R0","P0"); \
+ __syscall_return(type,__res); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) { \
- long __res; \
- __asm__ __volatile__ ( \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "a" ((long)(arg1)), \
- "a" ((long)(arg2)) \
- : "CC", "R0","R1", "P0"); \
-__syscall_return(type,__res); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "r1=%3;\n\t" \
+ "r0=%2;\n\t" \
+ "p0=%1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name), \
+ "rm" ((long)(arg1)), \
+ "rm" ((long)(arg2)) \
+ : "memory","CC","R0","R1","P0"); \
+ __syscall_return(type,__res); \
}
-
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1,type2 arg2,type3 arg3) { \
- long __res; \
- __asm__ __volatile__ ( \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "a" ((long)(arg1)), \
- "a" ((long)(arg2)), \
- "a" ((long)(arg3)) \
- : "CC", "R0","R1","R2", "P0"); \
-__syscall_return(type,__res); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "r2=%4;\n\t" \
+ "r1=%3;\n\t" \
+ "r0=%2;\n\t" \
+ "p0=%1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name), \
+ "rm" ((long)(arg1)), \
+ "rm" ((long)(arg2)), \
+ "rm" ((long)(arg3)) \
+ : "memory","CC","R0","R1","R2","P0"); \
+ __syscall_return(type,__res); \
}
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
- long __res; \
- __asm__ __volatile__ ( \
- "[--sp] = r3;\n\t" \
- "r3=%5;\n\t" \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- "r3 = [sp++];\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "a" ((long)(arg1)), \
- "a" ((long)(arg2)), \
- "a" ((long)(arg3)), \
- "a" ((long)(arg4)) \
- : "CC", "R0","R1","R2","R3", "P0"); \
-__syscall_return(type,__res); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "r3=%5;\n\t" \
+ "r2=%4;\n\t" \
+ "r1=%3;\n\t" \
+ "r0=%2;\n\t" \
+ "p0=%1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name), \
+ "rm" ((long)(arg1)), \
+ "rm" ((long)(arg2)), \
+ "rm" ((long)(arg3)), \
+ "rm" ((long)(arg4)) \
+ : "memory","CC","R0","R1","R2","R3","P0"); \
+ __syscall_return(type,__res); \
}
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) { \
- long __res; \
- __asm__ __volatile__ ( \
- "[--sp] = r4;\n\t" \
- "[--sp] = r3;\n\t" \
- "r4=%6;\n\t" \
- "r3=%5;\n\t" \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "P0=%1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- "r3 = [sp++];\n\t" \
- "r4 = [sp++];\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)), \
- "rm" ((long)(arg3)), \
- "rm" ((long)(arg4)), \
- "rm" ((long)(arg5)) \
- : "CC","R0","R1","R2","R3","R4","P0"); \
-__syscall_return(type,__res); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "r4=%6;\n\t" \
+ "r3=%5;\n\t" \
+ "r2=%4;\n\t" \
+ "r1=%3;\n\t" \
+ "r0=%2;\n\t" \
+ "P0=%1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name), \
+ "rm" ((long)(arg1)), \
+ "rm" ((long)(arg2)), \
+ "rm" ((long)(arg3)), \
+ "rm" ((long)(arg4)), \
+ "rm" ((long)(arg5)) \
+ : "memory","CC","R0","R1","R2","R3","R4","P0"); \
+ __syscall_return(type,__res); \
}
-#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) { \
- long __res; \
- __asm__ __volatile__ ( \
- "[--sp] = r5;\n\t" \
- "[--sp] = r4;\n\t" \
- "[--sp] = r3;\n\t" \
- "r4=%6;\n\t" \
- "r3=%5;\n\t" \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "P0=%1;\n\t" \
- "excpt 0;\n\t" \
- "%0=r0;\n\t" \
- "r3 = [sp++];\n\t" \
- "r4 = [sp++];\n\t" \
- "r5 = [sp++];\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)), \
- "rm" ((long)(arg3)), \
- "rm" ((long)(arg4)), \
- "rm" ((long)(arg5)), \
- "rm" ((long)(arg6)) \
- : "CC","R0","R1","R2","R3","R4","R5","P0"); \
-__syscall_return(type,__res); \
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) { \
+ long __res; \
+ __asm__ __volatile__ ( \
+ "r5=%7;\n\t" \
+ "r4=%6;\n\t" \
+ "r3=%5;\n\t" \
+ "r2=%4;\n\t" \
+ "r1=%3;\n\t" \
+ "r0=%2;\n\t" \
+ "P0=%1;\n\t" \
+ "excpt 0;\n\t" \
+ "%0=r0;\n\t" \
+ : "=da" (__res) \
+ : "i" (__NR_##name), \
+ "rm" ((long)(arg1)), \
+ "rm" ((long)(arg2)), \
+ "rm" ((long)(arg3)), \
+ "rm" ((long)(arg4)), \
+ "rm" ((long)(arg5)), \
+ "rm" ((long)(arg6)) \
+ : "memory","CC","R0","R1","R2","R3","R4","R5","P0"); \
+ __syscall_return(type,__res); \
}
#endif /* __ASSEMBLER__ */
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-28 11:57:02 +0000