diff options
Diffstat (limited to 'lib/libc/mips/SYS.h')
| -rw-r--r-- | lib/libc/mips/SYS.h | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/lib/libc/mips/SYS.h b/lib/libc/mips/SYS.h index c4aad44..7f2eeff 100644 --- a/lib/libc/mips/SYS.h +++ b/lib/libc/mips/SYS.h @@ -1,4 +1,4 @@ -/* $NetBSD: SYS.h,v 1.18 2003/10/29 12:28:33 pooka Exp $ */ +/* $NetBSD: SYS.h,v 1.19 2009/12/14 01:07:41 matt Exp $ */ /* $FreeBSD$ */ /*- @@ -79,14 +79,22 @@ */ #ifdef __ABICALLS__ .abicalls -# define PIC_PROLOGUE(x,sr) .set noreorder; .cpload sr; .set reorder -# define PIC_CALL(l,sr) la sr, _C_LABEL(l); jr sr +# if defined(__mips_o32) || defined(__mips_o64) +# define PIC_PROLOGUE(x) SETUP_GP +# define PIC_TAILCALL(l) PTR_LA t9, _C_LABEL(l); jr t9 +# define PIC_RETURN() j ra +# else +# define PIC_PROLOGUE(x) SETUP_GP64(t3, x) +# define PIC_TAILCALL(l) PTR_LA t9, _C_LABEL(l); RESTORE_GP64; jr t9 +# define PIC_RETURN() RESTORE_GP64; j ra +# endif #else -# define PIC_PROLOGUE(x,sr) -# define PIC_CALL(l,sr) j _C_LABEL(l) -#endif +# define PIC_PROLOGUE(x) +# define PIC_TAILCALL(l) j _C_LABEL(l) +# define PIC_RETURN() +#endif /* __ABICALLS__ */ -# define SYSTRAP(x) li v0, SYS_ ## x; syscall; +# define SYSTRAP(x) li v0,SYS_ ## x; syscall; /* * Do a syscall that cannot fail (sync, get{p,u,g,eu,eg)id) @@ -106,7 +114,7 @@ */ #define PSEUDO_NOERROR(x) \ LEAF(__sys_ ## x); \ - .weak _C_LABEL(x); \ + .weak _C_LABEL(x); \ _C_LABEL(x) = _C_LABEL(__CONCAT(__sys_,x)); \ .weak _C_LABEL(__CONCAT(_,x)); \ _C_LABEL(__CONCAT(_,x)) = _C_LABEL(__CONCAT(__sys_,x)); \ @@ -116,14 +124,14 @@ LEAF(__sys_ ## x); \ #define PSEUDO(x) \ LEAF(__sys_ ## x); \ - .weak _C_LABEL(x); \ + .weak _C_LABEL(x); \ _C_LABEL(x) = _C_LABEL(__CONCAT(__sys_,x)); \ .weak _C_LABEL(__CONCAT(_,x)); \ _C_LABEL(__CONCAT(_,x)) = _C_LABEL(__CONCAT(__sys_,x)); \ - PIC_PROLOGUE(x,t9); \ + PIC_PROLOGUE(__sys_ ## x); \ SYSTRAP(x); \ bne a3,zero,err; \ - j ra; \ + PIC_RETURN(); \ err: \ - PIC_CALL(__cerror,t9); \ - END(__sys_ ## x) + PIC_TAILCALL(__cerror); \ +END(__sys_ ## x) |
