2  * ptrace for 32-bit processes running on a 64-bit kernel.
5  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
16  * Public License.  See the file COPYING in the main directory of
26 #include "ptrace-decl.h"
34 #define FPRNUMBER(i) (((i) - PT_FPR0) >> 1)
35 #define FPRHALF(i) (((i) - PT_FPR0) & 1)
47 	 * Read 4 bytes of the other process' storage  in compat_arch_ptrace()
50 	 *  addr is a pointer in the user's storage that contains an 8 byte  in compat_arch_ptrace()
52 	 * (this is run in a 32-bit process looking at a 64-bit process)  in compat_arch_ptrace()
61 		ret = -EIO;  in compat_arch_ptrace()
80 		ret = -EIO;  in compat_arch_ptrace()
94 			 * to be an array of unsigned int (32 bits) - the  in compat_arch_ptrace()
97 			tmp = ((unsigned int *)child->thread.fp_state.fpr)  in compat_arch_ptrace()
110 	 * (this is run in a 32-bit process looking at a 64-bit process)  in compat_arch_ptrace()
119 		ret = -EIO;  in compat_arch_ptrace()
125 			part = 1;  /* want the 2nd half of the register (right-most). */  in compat_arch_ptrace()
127 			part = 0;  /* want the 1st half of the register (left-most). */  in compat_arch_ptrace()
129 		/* Validate the input - check to see if address is on the wrong boundary  in compat_arch_ptrace()
138 			tmp = child->thread.fp_state.fpr[numReg - PT_FPR0][0];  in compat_arch_ptrace()
152 	 * Write 4 bytes into the other process' storage  in compat_arch_ptrace()
154 	 *  addr is a pointer in the user's storage that contains an  in compat_arch_ptrace()
157 	 * (this is run in a 32-bit process looking at a 64-bit process)  in compat_arch_ptrace()
166 		ret = -EIO;  in compat_arch_ptrace()
174 		ret = -EIO;  in compat_arch_ptrace()
182 		ret = -EIO;  in compat_arch_ptrace()
194 			 * to be an array of unsigned int (32 bits) - the  in compat_arch_ptrace()
197 			((unsigned int *)child->thread.fp_state.fpr)  in compat_arch_ptrace()
209 	 * (this is run in a 32-bit process looking at a 64-bit process)  in compat_arch_ptrace()
215 		ret = -EIO;  in compat_arch_ptrace()
221 		 * Validate the input - check to see if address is on the  in compat_arch_ptrace()
240 			tmp = &child->thread.fp_state.fpr[numReg - PT_FPR0][0];  in compat_arch_ptrace()
252 		ret = -EINVAL;  in compat_arch_ptrace()
257 		ret = put_user(child->thread.debug.dac1, (u32 __user *)data);  in compat_arch_ptrace()
260 			(child->thread.hw_brk[0].address & (~HW_BRK_TYPE_DABR)) |  in compat_arch_ptrace()
261 			(child->thread.hw_brk[0].type & HW_BRK_TYPE_DABR));  in compat_arch_ptrace()