diff options
Diffstat (limited to 'arch/alpha/include/asm/uaccess.h')
| -rw-r--r-- | arch/alpha/include/asm/uaccess.h | 80 |
1 files changed, 22 insertions, 58 deletions
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h index 54c1d19ef06d..9557c12823a9 100644 --- a/arch/alpha/include/asm/uaccess.h +++ b/arch/alpha/include/asm/uaccess.h @@ -74,6 +74,11 @@ * more extensive comments with fixup_inline_exception below for * more information. */ +#define EXC(label,cont,res,err) \ + ".section __ex_table,\"a\"\n" \ + " .long "#label"-.\n" \ + " lda "#res","#cont"-"#label"("#err")\n" \ + ".previous\n" extern void __get_user_unknown(void); @@ -118,20 +123,14 @@ struct __large_struct { unsigned long buf[100]; }; #define __get_user_64(addr) \ __asm__("1: ldq %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) #define __get_user_32(addr) \ __asm__("1: ldl %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) @@ -141,20 +140,14 @@ struct __large_struct { unsigned long buf[100]; }; #define __get_user_16(addr) \ __asm__("1: ldwu %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) #define __get_user_8(addr) \ __asm__("1: ldbu %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) #else @@ -170,12 +163,8 @@ struct __large_struct { unsigned long buf[100]; }; " extwh %1,%3,%1\n" \ " or %0,%1,%0\n" \ "3:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 3b-1b(%2)\n" \ - " .long 2b - .\n" \ - " lda %0, 3b-2b(%2)\n" \ - ".previous" \ + EXC(1b,3b,%0,%2) \ + EXC(2b,3b,%0,%2) \ : "=&r"(__gu_val), "=&r"(__gu_tmp), "=r"(__gu_err) \ : "r"(addr), "2"(__gu_err)); \ } @@ -184,10 +173,7 @@ struct __large_struct { unsigned long buf[100]; }; __asm__("1: ldq_u %0,0(%2)\n" \ " extbl %0,%2,%0\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=&r"(__gu_val), "=r"(__gu_err) \ : "r"(addr), "1"(__gu_err)) #endif @@ -233,20 +219,14 @@ extern void __put_user_unknown(void); #define __put_user_64(x, addr) \ __asm__ __volatile__("1: stq %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m" (__m(addr)), "rJ" (x), "0"(__pu_err)) #define __put_user_32(x, addr) \ __asm__ __volatile__("1: stl %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) @@ -256,20 +236,14 @@ __asm__ __volatile__("1: stl %r2,%1\n" \ #define __put_user_16(x, addr) \ __asm__ __volatile__("1: stw %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) #define __put_user_8(x, addr) \ __asm__ __volatile__("1: stb %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) #else @@ -291,16 +265,10 @@ __asm__ __volatile__("1: stb %r2,%1\n" \ "3: stq_u %2,1(%5)\n" \ "4: stq_u %1,0(%5)\n" \ "5:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31, 5b-1b(%0)\n" \ - " .long 2b - .\n" \ - " lda $31, 5b-2b(%0)\n" \ - " .long 3b - .\n" \ - " lda $31, 5b-3b(%0)\n" \ - " .long 4b - .\n" \ - " lda $31, 5b-4b(%0)\n" \ - ".previous" \ + EXC(1b,5b,$31,%0) \ + EXC(2b,5b,$31,%0) \ + EXC(3b,5b,$31,%0) \ + EXC(4b,5b,$31,%0) \ : "=r"(__pu_err), "=&r"(__pu_tmp1), \ "=&r"(__pu_tmp2), "=&r"(__pu_tmp3), \ "=&r"(__pu_tmp4) \ @@ -317,12 +285,8 @@ __asm__ __volatile__("1: stb %r2,%1\n" \ " or %1,%2,%1\n" \ "2: stq_u %1,0(%4)\n" \ "3:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31, 3b-1b(%0)\n" \ - " .long 2b - .\n" \ - " lda $31, 3b-2b(%0)\n" \ - ".previous" \ + EXC(1b,3b,$31,%0) \ + EXC(2b,3b,$31,%0) \ : "=r"(__pu_err), \ "=&r"(__pu_tmp1), "=&r"(__pu_tmp2) \ : "r"((unsigned long)(x)), "r"(addr), "0"(__pu_err)); \ |