diff options
| -rw-r--r-- | libc/sysdeps/linux/m68k/ptrace.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/m68k/ptrace.c b/libc/sysdeps/linux/m68k/ptrace.c new file mode 100644 index 000000000..383f72615 --- /dev/null +++ b/libc/sysdeps/linux/m68k/ptrace.c @@ -0,0 +1,33 @@ + +#include <errno.h> +#include <asm/ptrace.h> +#include <sys/syscall.h> + +int +ptrace(int request, int pid, int addr, int data) +{ + long ret; + long res; + if (request > 0 && request < 4) (long *)data = &ret; + + __asm__ volatile ("movel %1,%/d0\n\t" + "movel %2,%/d1\n\t" + "movel %3,%/d2\n\t" + "movel %4,%/d3\n\t" + "movel %5,%/d4\n\t" + "trap #0\n\t" + "movel %/d0,%0" + :"=g" (res) + :"i" (SYS_ptrace), "g" (request), "g" (pid), + "g" (addr), "g" (data) : "%d0", "%d1", "%d2", "%d3", "%d4"); + + if (res >= 0) { + if (request > 0 && request < 4) { + errno = 0; + return (ret); + } + return (int) res; + } + errno = -res; + return -1; +} |