From 84d08a9a0e501241f6a1fa8505a3a61a9c214001 Mon Sep 17 00:00:00 2001 From: David McCullough Date: Mon, 29 Jan 2001 15:03:09 +0000 Subject: ptrace for m68k debugging. --- libc/sysdeps/linux/m68k/ptrace.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 libc/sysdeps/linux/m68k/ptrace.c 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 +#include +#include + +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; +} -- cgit v1.2.3