diff options
Diffstat (limited to 'target/linux/etrax/patches/cris/006-gcc-4.patch')
| -rw-r--r-- | target/linux/etrax/patches/cris/006-gcc-4.patch | 705 |
1 files changed, 705 insertions, 0 deletions
diff --git a/target/linux/etrax/patches/cris/006-gcc-4.patch b/target/linux/etrax/patches/cris/006-gcc-4.patch new file mode 100644 index 0000000..a957632 --- /dev/null +++ b/target/linux/etrax/patches/cris/006-gcc-4.patch @@ -0,0 +1,705 @@ +diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c +--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c 2007-06-03 13:59:39.000000000 +0200 ++++ linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c 2007-06-03 14:11:43.000000000 +0200 +@@ -110,45 +110,28 @@ + If you want to check that the allocation was right; then + check the equalities in the first comment. It should say + "r13=r13, r12=r12, r11=r11" */ +- __asm__ volatile (" +- ;; Check that the following is true (same register names on +- ;; both sides of equal sign, as in r8=r8): +- ;; %0=r13, %1=r12, %4=r11 +- ;; +- ;; Save the registers we'll clobber in the movem process +- ;; on the stack. Don't mention them to gcc, it will only be +- ;; upset. +- subq 11*4,$sp +- movem $r10,[$sp] +- +- move.d $r11,$r0 +- move.d $r11,$r1 +- move.d $r11,$r2 +- move.d $r11,$r3 +- move.d $r11,$r4 +- move.d $r11,$r5 +- move.d $r11,$r6 +- move.d $r11,$r7 +- move.d $r11,$r8 +- move.d $r11,$r9 +- move.d $r11,$r10 +- +- ;; Now we've got this: +- ;; r13 - dst +- ;; r12 - n ++ __asm__ volatile ( ++ "subq 11*4,$sp\n\t" ++ "movem $r10,[$sp]\n\t" ++ "move.d $r11,$r0\n\t" ++ "move.d $r11,$r1\n\t" ++ "move.d $r11,$r2\n\t" ++ "move.d $r11,$r3\n\t" ++ "move.d $r11,$r4\n\t" ++ "move.d $r11,$r5\n\t" ++ "move.d $r11,$r6\n\t" ++ "move.d $r11,$r7\n\t" ++ "move.d $r11,$r8\n\t" ++ "move.d $r11,$r9\n\t" ++ "move.d $r11,$r10\n\t" ++ "subq 12*4,$r12\n\t" ++"0:\n\t" ++ "subq 12*4,$r12\n\t" ++ "bge 0b\n\t" ++ "movem $r11,[$r13+]\n\t" ++ "addq 12*4,$r12\n\t" ++ "movem [$sp+],$r10" + +- ;; Update n for the first loop +- subq 12*4,$r12 +-0: +- subq 12*4,$r12 +- bge 0b +- movem $r11,[$r13+] +- +- addq 12*4,$r12 ;; compensate for last loop underflowing n +- +- ;; Restore registers from stack +- movem [$sp+],$r10" +- + /* Outputs */ : "=r" (dst), "=r" (n) + /* Inputs */ : "0" (dst), "1" (n), "r" (lc)); + +@@ -161,10 +144,14 @@ + + while ( n >= 16 ) + { +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + n -= 16; + } + +@@ -182,67 +169,95 @@ + *(short*)dst = (short) lc; + break; + case 3: +- *((short*)dst)++ = (short) lc; ++ *((short*)dst) = (short) lc; ++ dst+=2; + *(char*)dst = (char) lc; + break; + case 4: +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; + break; + case 5: +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; + *(char*)dst = (char) lc; + break; + case 6: +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; + *(short*)dst = (short) lc; + break; + case 7: +- *((long*)dst)++ = lc; +- *((short*)dst)++ = (short) lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((short*)dst) = (short) lc; ++ dst+=2; + *(char*)dst = (char) lc; + break; + case 8: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + break; + case 9: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + *(char*)dst = (char) lc; + break; + case 10: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + *(short*)dst = (short) lc; + break; + case 11: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((short*)dst)++ = (short) lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((short*)dst) = (short) lc; ++ dst+=2; + *(char*)dst = (char) lc; + break; + case 12: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + break; + case 13: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + *(char*)dst = (char) lc; + break; + case 14: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; + *(short*)dst = (short) lc; + break; + case 15: +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((long*)dst)++ = lc; +- *((short*)dst)++ = (short) lc; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((long*)dst) = lc; ++ dst+=4; ++ *((short*)dst) = (short) lc; ++ dst+=2; + *(char*)dst = (char) lc; + break; + } +diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c linux-2.6.19.2/arch/cris/arch-v10/lib/string.c +--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c 2007-06-03 13:59:39.000000000 +0200 ++++ linux-2.6.19.2/arch/cris/arch-v10/lib/string.c 2007-06-03 14:21:02.000000000 +0200 +@@ -95,37 +95,19 @@ + If you want to check that the allocation was right; then + check the equalities in the first comment. It should say + "r13=r13, r11=r11, r12=r12" */ +- __asm__ volatile (" +- ;; Check that the following is true (same register names on +- ;; both sides of equal sign, as in r8=r8): +- ;; %0=r13, %1=r11, %2=r12 +- ;; +- ;; Save the registers we'll use in the movem process +- ;; on the stack. +- subq 11*4,$sp +- movem $r10,[$sp] +- +- ;; Now we've got this: +- ;; r11 - src +- ;; r13 - dst +- ;; r12 - n +- +- ;; Update n for the first loop +- subq 44,$r12 +-0: +- movem [$r11+],$r10 +- subq 44,$r12 +- bge 0b +- movem $r10,[$r13+] +- +- addq 44,$r12 ;; compensate for last loop underflowing n +- +- ;; Restore registers from stack +- movem [$sp+],$r10" +- ++ __asm__ volatile ( ++ "subq 11*4,$sp\n\t" ++ "movem $r10,[$sp]\n\t" ++ "subq 44,$r12\n\t" ++"0:\n\t" ++ "movem [$r11+],$r10\n\t" ++ "subq 44,$r12\n\t" ++ "bge 0b\n\t" ++ "movem $r10,[$r13+]\n\t" ++ "addq 44,$r12\n\t" ++ "movem [$sp+],$r10\n\t" + /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n) + /* Inputs */ : "0" (dst), "1" (src), "2" (n)); +- + } + + /* Either we directly starts copying, using dword copying +@@ -135,10 +117,14 @@ + + while ( n >= 16 ) + { +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + n -= 16; + } + +@@ -156,67 +142,95 @@ + *(short*)dst = *(short*)src; + break; + case 3: +- *((short*)dst)++ = *((short*)src)++; ++ *((short*)dst) = *((short*)src); ++ src+=2;dst+=2; + *(char*)dst = *(char*)src; + break; + case 4: +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + break; + case 5: +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + *(char*)dst = *(char*)src; + break; + case 6: +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + *(short*)dst = *(short*)src; + break; + case 7: +- *((long*)dst)++ = *((long*)src)++; +- *((short*)dst)++ = *((short*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((short*)dst) = *((short*)src); ++ src+=2;dst+=2; + *(char*)dst = *(char*)src; + break; + case 8: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + break; + case 9: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + *(char*)dst = *(char*)src; + break; + case 10: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + *(short*)dst = *(short*)src; + break; + case 11: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((short*)dst)++ = *((short*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((short*)dst) = *((short*)src); ++ src+=2;dst+=2; + *(char*)dst = *(char*)src; + break; + case 12: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + break; + case 13: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + *(char*)dst = *(char*)src; + break; + case 14: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; + *(short*)dst = *(short*)src; + break; + case 15: +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((long*)dst)++ = *((long*)src)++; +- *((short*)dst)++ = *((short*)src)++; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((long*)dst) = *((long*)src); ++ src+=4;dst+=4; ++ *((short*)dst) = *((short*)src); ++ src+=2;dst+=2; + *(char*)dst = *(char*)src; + break; + } +diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c +--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c 2007-06-03 13:59:39.000000000 +0200 ++++ linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c 2007-06-03 14:25:55.000000000 +0200 +@@ -88,63 +88,38 @@ + If you want to check that the allocation was right; then + check the equalities in the first comment. It should say + "r13=r13, r11=r11, r12=r12". */ +- __asm__ volatile ("\ +- .ifnc %0%1%2%3,$r13$r11$r12$r10 \n\ +- .err \n\ +- .endif \n\ +- +- ;; Save the registers we'll use in the movem process +- ;; on the stack. +- subq 11*4,$sp +- movem $r10,[$sp] +- +- ;; Now we've got this: +- ;; r11 - src +- ;; r13 - dst +- ;; r12 - n +- +- ;; Update n for the first loop +- subq 44,$r12 +- +-; Since the noted PC of a faulting instruction in a delay-slot of a taken +-; branch, is that of the branch target, we actually point at the from-movem +-; for this case. There is no ambiguity here; if there was a fault in that +-; instruction (meaning a kernel oops), the faulted PC would be the address +-; after *that* movem. +- +-0: +- movem [$r11+],$r10 +- subq 44,$r12 +- bge 0b +- movem $r10,[$r13+] +-1: +- addq 44,$r12 ;; compensate for last loop underflowing n +- +- ;; Restore registers from stack +- movem [$sp+],$r10 +-2: +- .section .fixup,\"ax\" +- +-; To provide a correct count in r10 of bytes that failed to be copied, +-; we jump back into the loop if the loop-branch was taken. There is no +-; performance penalty for sany use; the program will segfault soon enough. +- +-3: +- move.d [$sp],$r10 +- addq 44,$r10 +- move.d $r10,[$sp] +- jump 0b +-4: +- movem [$sp+],$r10 +- addq 44,$r10 +- addq 44,$r12 +- jump 2b +- +- .previous +- .section __ex_table,\"a\" +- .dword 0b,3b +- .dword 1b,4b +- .previous" ++ __asm__ volatile ( ++ ".ifnc %0%1%2%3,$r13$r11$r12$r10 \n\t" ++ ".err \n\t" ++ ".endif \n\t" ++ "subq 11*4,$sp\n\t" ++ "movem $r10,[$sp]\n\t" ++ "subq 44,$r12\n\t" ++ "0:\n\t" ++ "movem [$r11+],$r10\n\t" ++ "subq 44,$r12\n\t" ++ "bge 0b\n\t" ++ "movem $r10,[$r13+]\n\t" ++ "1:\n\t" ++ "addq 44,$r12 \n\t" ++ "movem [$sp+],$r10\n\t" ++ "2:\n\t" ++ ".section .fixup,\"ax\"\n\t" ++ "3:\n\t" ++ "move.d [$sp],$r10\n\t" ++ "addq 44,$r10\n\t" ++ "move.d $r10,[$sp]\n\t" ++ "jump 0b\n\t" ++ "4:\n\t" ++ "movem [$sp+],$r10\n\t" ++ "addq 44,$r10\n\t" ++ "addq 44,$r12\n\t" ++ "jump 2b\n\t" ++ ".previous\n\t" ++ ".section __ex_table,\"a\"\n\t" ++ ".dword 0b,3b\n\t" ++ ".dword 1b,4b\n\t" ++ ".previous\n\t" + + /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n), "=r" (retn) + /* Inputs */ : "0" (dst), "1" (src), "2" (n), "3" (retn)); +@@ -253,60 +228,32 @@ + If you want to check that the allocation was right; then + check the equalities in the first comment. It should say + "r13=r13, r11=r11, r12=r12" */ +- __asm__ volatile (" +- .ifnc %0%1%2%3,$r13$r11$r12$r10 \n\ +- .err \n\ +- .endif \n\ +- +- ;; Save the registers we'll use in the movem process +- ;; on the stack. +- subq 11*4,$sp +- movem $r10,[$sp] +- +- ;; Now we've got this: +- ;; r11 - src +- ;; r13 - dst +- ;; r12 - n +- +- ;; Update n for the first loop +- subq 44,$r12 +-0: +- movem [$r11+],$r10 +-1: +- subq 44,$r12 +- bge 0b +- movem $r10,[$r13+] +- +- addq 44,$r12 ;; compensate for last loop underflowing n +- +- ;; Restore registers from stack +- movem [$sp+],$r10 +-4: +- .section .fixup,\"ax\" +- +-;; Do not jump back into the loop if we fail. For some uses, we get a +-;; page fault somewhere on the line. Without checking for page limits, +-;; we don't know where, but we need to copy accurately and keep an +-;; accurate count; not just clear the whole line. To do that, we fall +-;; down in the code below, proceeding with smaller amounts. It should +-;; be kept in mind that we have to cater to code like what at one time +-;; was in fs/super.c: +-;; i = size - copy_from_user((void *)page, data, size); +-;; which would cause repeated faults while clearing the remainder of +-;; the SIZE bytes at PAGE after the first fault. +-;; A caveat here is that we must not fall through from a failing page +-;; to a valid page. +- +-3: +- movem [$sp+],$r10 +- addq 44,$r12 ;; Get back count before faulting point. +- subq 44,$r11 ;; Get back pointer to faulting movem-line. +- jump 4b ;; Fall through, pretending the fault didn't happen. +- +- .previous +- .section __ex_table,\"a\" +- .dword 1b,3b +- .previous" ++ __asm__ volatile ( ++ ".ifnc %0%1%2%3,$r13$r11$r12$r10 \n\t" ++ ".err \n\t" ++ ".endif \n\t" ++ "subq 11*4,$sp\n\t" ++ "movem $r10,[$sp]\n\t" ++ "subq 44,$r12\n\t" ++ "0:\n\t" ++ "movem [$r11+],$r10\n\t" ++ "1:\n\t" ++ "subq 44,$r12\n\t" ++ "bge 0b\n\t" ++ "movem $r10,[$r13+]\n\t" ++ "addq 44,$r12 \n\t" ++ "movem [$sp+],$r10\n\t" ++ "4:\n\t" ++ ".section .fixup,\"ax\"\n\t" ++ "3:\n\t" ++ "movem [$sp+],$r10\n\t" ++ "addq 44,$r12\n\t" ++ "subq 44,$r11\n\t" ++ "jump 4b \n\t" ++ ".previous\n\t" ++ ".section __ex_table,\"a\"\n\t" ++ ".dword 1b,3b\n\t" ++ ".previous\n\t" + + /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n), "=r" (retn) + /* Inputs */ : "0" (dst), "1" (src), "2" (n), "3" (retn)); +@@ -425,66 +372,50 @@ + If you want to check that the allocation was right; then + check the equalities in the first comment. It should say + something like "r13=r13, r11=r11, r12=r12". */ +- __asm__ volatile (" +- .ifnc %0%1%2,$r13$r12$r10 \n\ +- .err \n\ +- .endif \n\ +- +- ;; Save the registers we'll clobber in the movem process +- ;; on the stack. Don't mention them to gcc, it will only be +- ;; upset. +- subq 11*4,$sp +- movem $r10,[$sp] +- +- clear.d $r0 +- clear.d $r1 +- clear.d $r2 +- clear.d $r3 +- clear.d $r4 +- clear.d $r5 +- clear.d $r6 +- clear.d $r7 +- clear.d $r8 +- clear.d $r9 +- clear.d $r10 +- clear.d $r11 +- +- ;; Now we've got this: +- ;; r13 - dst +- ;; r12 - n +- +- ;; Update n for the first loop +- subq 12*4,$r12 +-0: +- subq 12*4,$r12 +- bge 0b +- movem $r11,[$r13+] +-1: +- addq 12*4,$r12 ;; compensate for last loop underflowing n +- +- ;; Restore registers from stack +- movem [$sp+],$r10 +-2: +- .section .fixup,\"ax\" +-3: +- move.d [$sp],$r10 +- addq 12*4,$r10 +- move.d $r10,[$sp] +- clear.d $r10 +- jump 0b +- +-4: +- movem [$sp+],$r10 +- addq 12*4,$r10 +- addq 12*4,$r12 +- jump 2b +- +- .previous +- .section __ex_table,\"a\" +- .dword 0b,3b +- .dword 1b,4b +- .previous" +- ++ __asm__ volatile ( ++ ".ifnc %0%1%2,$r13$r12$r10\n\t" ++ ".err \n\t" ++ ".endif\n\t" ++ "subq 11*4,$sp\n\t" ++ "movem $r10,[$sp]\n\t" ++ "clear.d $r0\n\t" ++ "clear.d $r1\n\t" ++ "clear.d $r2\n\t" ++ "clear.d $r3\n\t" ++ "clear.d $r4\n\t" ++ "clear.d $r5\n\t" ++ "clear.d $r6\n\t" ++ "clear.d $r7\n\t" ++ "clear.d $r8\n\t" ++ "clear.d $r9\n\t" ++ "clear.d $r10\n\t" ++ "clear.d $r11\n\t" ++ "subq 12*4,$r12\n\t" ++ "0:\n\t" ++ "subq 12*4,$r12\n\t" ++ "bge 0b\n\t" ++ "movem $r11,[$r13+]\n\t" ++ "1: \n\t" ++ "addq 12*4,$r12 \n\t" ++ "movem [$sp+],$r10\n\t" ++ "2:\n\t" ++ ".section .fixup,\"ax\"\n\t" ++ "3:\n\t" ++ "move.d [$sp],$r10\n\t" ++ "addq 12*4,$r10\n\t" ++ "move.d $r10,[$sp]\n\t" ++ "clear.d $r10\n\t" ++ "jump 0b\n\t" ++ "4:\n\t" ++ "movem [$sp+],$r10\n\t" ++ "addq 12*4,$r10\n\t" ++ "addq 12*4,$r12\n\t" ++ "jump 2b\n\t" ++ ".previous\n\t" ++ ".section __ex_table,\"a\"\n\t" ++ ".dword 0b,3b\n\t" ++ ".dword 1b,4b\n\t" ++ ".previous\n\t" + /* Outputs */ : "=r" (dst), "=r" (n), "=r" (retn) + /* Inputs */ : "0" (dst), "1" (n), "2" (retn) + /* Clobber */ : "r11"); |