diff options
| author | Stafford Horne <shorne@gmail.com> | 2018-01-04 22:57:02 +0900 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2018-01-15 20:01:26 +0000 |
| commit | c47a0379237ddb9260c5a72d6a2318b766b3261d (patch) | |
| tree | 32d38ab157f02014071f09544f6db25a1152153c /libc/sysdeps/linux/nds32/bits | |
| parent | f76de0893c0b9dff39ded38023cb6957cb09fb9f (diff) | |
nds32: Add syscall macros for 5 and 6 parameters
This is to fix an error after switching to use generic syscalls.
libc/sysdeps/linux/common/syscall.c: In function 'syscall':
libc/sysdeps/linux/common/syscall.c:27:2: warning: implicit
declaration of function 'internal_syscall_ncs6'
[-Wimplicit-function-declaration]
return INLINE_SYSCALL_NCS(sysnum, 6, arg1, arg2, arg3, arg4, arg5,
arg6);
^
Defining these functions as described by Vincent Ren-Wei Chen
<vincentc@andestech.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/nds32/bits')
| -rw-r--r-- | libc/sysdeps/linux/nds32/bits/syscalls.h | 57 |
1 files changed, 54 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/nds32/bits/syscalls.h b/libc/sysdeps/linux/nds32/bits/syscalls.h index 215ce3467..a5cdda18a 100644 --- a/libc/sysdeps/linux/nds32/bits/syscalls.h +++ b/libc/sysdeps/linux/nds32/bits/syscalls.h @@ -68,9 +68,8 @@ #define INTERNAL_SYSCALL(name, err, nr, args...) internal_syscall##nr(__NR_##name, err, args) /* - The _NCS variant allows non-constant syscall numbers but it is not - possible to use more than four parameters. -*/ + The _NCS variant allows non-constant syscall numbers + */ #undef INTERNAL_SYSCALL_NCS #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) internal_syscall_ncs##nr(name, err, args) @@ -298,6 +297,58 @@ __res; \ }) +#define internal_syscall_ncs5(name, err, arg1, arg2, arg3, arg4, arg5) \ + ({ \ + register long ___res __asm__("$r0"); \ + register long __no __asm__("$r0") = (long) (name); \ + register long __arg1 __asm__("$r1") = (long) (arg1); \ + register long __arg2 __asm__("$r2") = (long) (arg2); \ + register long __arg3 __asm__("$r3") = (long) (arg3); \ + register long __arg4 __asm__("$r4") = (long) (arg4); \ + register long __arg5 __asm__("$r5") = (long) (arg5); \ + __asm__ volatile ( \ + __issue_syscall (LIB_SYSCALL) \ + : "=r" (___res) /* output operands */ \ + : "r" (__arg1) /* input operands */ \ + , "r" (__arg2) /* input operands */ \ + , "r" (__arg3) /* input operands */ \ + , "r" (__arg4) /* input operands */ \ + , "r" (__arg5) /* input operands */ \ + : __SYSCALL_CLOBBERS); /* list of clobbered registers */ \ + ___res; \ + }) + +#define internal_syscall_ncs6(name, err, arg1, arg2, arg3, arg4, arg5, arg6) \ + ({ \ + register long __res __asm__("$r0"); \ + register long __no __asm__("$r0") = (long) (name); \ + register long __arg1 __asm__("$r1") = (long) (arg1); \ + register long __arg2 __asm__("$r2") = (long) (arg2); \ + register long __arg3 __asm__("$r3") = (long) (arg3); \ + register long __arg4 __asm__("$r4") = (long) (arg4); \ + register long __arg5 __asm__("$r5") = (long) (arg5); \ + __asm__ volatile ( \ + "addi10.sp\t #-4\n\t" \ + CFI_ADJUST_CFA_OFFSET(4)"\n\t" \ + "push\t %7\n\t" \ + CFI_ADJUST_CFA_OFFSET(4)"\n\t" \ + __issue_syscall (LIB_SYSCALL) \ + "pop\t %7\n\t" \ + CFI_ADJUST_CFA_OFFSET(-4)"\n\t" \ + "addi10.sp\t #4\n\t" \ + CFI_ADJUST_CFA_OFFSET(-4)"\n\t" \ + : "=r" (__res) /* output operands */ \ + : "r" (__no) /* input operands */ \ + , "r" (__arg1) /* input operands */ \ + , "r" (__arg2) /* input operands */ \ + , "r" (__arg3) /* input operands */ \ + , "r" (__arg4) /* input operands */ \ + , "r" (__arg5) /* input operands */ \ + , "r" (arg6) /* input operands */ \ + : __SYSCALL_CLOBBERS); /* list of clobbered registers */ \ + __res; \ + }) + #define __SYSCALL_CLOBBERS "$lp", "memory" #endif /* ! __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */ |