diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/cris/asmreg-1.c')
-rw-r--r-- | gcc/testsuite/gcc.target/cris/asmreg-1.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/cris/asmreg-1.c b/gcc/testsuite/gcc.target/cris/asmreg-1.c new file mode 100644 index 000000000..f430fafbe --- /dev/null +++ b/gcc/testsuite/gcc.target/cris/asmreg-1.c @@ -0,0 +1,73 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +/* { dg-final { scan-assembler "\\\.ifnc \\\$r9-\\\$r10-\\\$r11-\\\$r12" } } */ + +/* Sanity check for asm register operands in syscall failed for + cris-axis-linux-gnu due to regmove bug. + Hans-Peter Nilsson <hp@axis.com>. */ + +extern void lseek64 (int, long long, int); +extern int *__errno_location (void); +struct dirent64 +{ + long long d_off; + unsigned short int d_reclen; + char d_name[256]; +}; +struct kernel_dirent64 +{ + long long d_off; + unsigned short d_reclen; + char d_name[256]; +}; + +static inline int __attribute__ ((__always_inline__)) +__syscall_getdents64 (int fd, char * dirp, unsigned count) +{ + register unsigned long __sys_res asm ("r10"); + register unsigned long __r10 __asm__ ("r10") = (unsigned long) fd; + register unsigned long __r11 __asm__ ("r11") = (unsigned long) dirp; + register unsigned long __r12 __asm__ ("r12") = (unsigned long) count; + register unsigned long __callno asm ("r9") = (220); + asm volatile (".ifnc %1-%0-%3-%4,$r9-$r10-$r11-$r12\n\t" + ".err\n\t" + ".endif\n\t" + "break 13" + : "=r" (__sys_res) + : "r" (__callno), "0" (__r10), "r" (__r11), "r" (__r12) + : "memory"); + if (__sys_res >= (unsigned long) -4096) + { + (*__errno_location ()) = - __sys_res; + __sys_res = -1; + } + return __sys_res; +} + +int +__getdents64 (int fd, char *buf, unsigned nbytes) +{ + struct dirent64 *dp; + long long last_offset = -1; + int retval; + struct kernel_dirent64 *skdp, *kdp; + dp = (struct dirent64 *) buf; + skdp = kdp = __builtin_alloca (nbytes); + retval = __syscall_getdents64(fd, (char *)kdp, nbytes); + if (retval == -1) + return -1; + while ((char *) kdp < (char *) skdp + retval) + { + if ((char *) dp > buf + nbytes) + { + lseek64(fd, last_offset, 0); + break; + } + last_offset = kdp->d_off; + __builtin_memcpy (dp->d_name, kdp->d_name, kdp->d_reclen - 10); + dp = (struct dirent64 *) ((char *) dp + sizeof (*dp)); + kdp = (struct kernel_dirent64 *) (((char *) kdp) + kdp->d_reclen); + } + + return (char *) dp - buf; +} |