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parisc: Clean up unistd.h file

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Clean up the internal unistd.h file, so that syscallX() can be used
internally to call syscalls from userspace. This is used later by the
vDSO C-code.

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2024-06-21 18:39:13 +02:00
parent 6ba59ff422
commit af42d252ea
1 changed files with 15 additions and 39 deletions
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54
arch/parisc/include/asm/unistd.h
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@ -20,7 +20,7 @@
* sysdeps/unix/sysv/linux/hppa/sysdep.h
*/
#ifdef PIC
#ifndef DONT_USE_PIC
/* WARNING: CANNOT BE USED IN A NOP! */
# define K_STW_ASM_PIC " copy %%r19, %%r4\n"
# define K_LDW_ASM_PIC " copy %%r4, %%r19\n"
@ -43,7 +43,7 @@
across the syscall. */
#define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \
"%r20", "%r29", "%r31"
"%r20", "%r29", "%r31"
#undef K_INLINE_SYSCALL
#define K_INLINE_SYSCALL(name, nr, args...) ({ \
@ -58,7 +58,7 @@
" ldi %1, %%r20\n" \
K_LDW_ASM_PIC \
: "=r" (__res) \
: "i" (SYS_ify(name)) K_ASM_ARGS_##nr \
: "i" (name) K_ASM_ARGS_##nr \
: "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr \
); \
__sys_res = (long)__res; \
@ -104,42 +104,18 @@
#define K_CLOB_ARGS_1 K_CLOB_ARGS_2, "%r25"
#define K_CLOB_ARGS_0 K_CLOB_ARGS_1, "%r26"
#define _syscall0(type,name) \
type name(void) \
{ \
return K_INLINE_SYSCALL(name, 0); \
}
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
return K_INLINE_SYSCALL(name, 1, arg1); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1, type2 arg2) \
{ \
return K_INLINE_SYSCALL(name, 2, arg1, arg2); \
}
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1, type2 arg2, type3 arg3) \
{ \
return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3); \
}
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4); \
}
/* select takes 5 arguments */
#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) \
{ \
return K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5); \
}
#define syscall0(name) \
K_INLINE_SYSCALL(name, 0)
#define syscall1(name, arg1) \
K_INLINE_SYSCALL(name, 1, arg1)
#define syscall2(name, arg1, arg2) \
K_INLINE_SYSCALL(name, 2, arg1, arg2)
#define syscall3(name, arg1, arg2, arg3) \
K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3)
#define syscall4(name, arg1, arg2, arg3, arg4) \
K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4)
#define syscall5(name, arg1, arg2, arg3, arg4, arg5) \
K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5)
#define __ARCH_WANT_NEW_STAT
#define __ARCH_WANT_STAT64