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authorRoland McGrath <roland@redhat.com>2008-01-30 07:31:56 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-30 07:31:56 -0500
commitfdadd54db5e9f05e673eb08746bf2bea460d9f0d (patch)
treea5211e35cc75ed91a0d4ea40b65b83408bb3c237 /arch
parentbb61682b3f31dec7d058cae2f6edd2275248a704 (diff)
x86: x86 ptrace generic requests
This removes duplicated code by calling the generic ptrace_request and compat_ptrace_request functions for the things they already handle. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/ptrace.c37
1 files changed, 1 insertions, 36 deletions
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index e6a680c7daf7..3e34b14e8846 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -760,12 +760,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
760 unsigned long __user *datap = (unsigned long __user *)data; 760 unsigned long __user *datap = (unsigned long __user *)data;
761 761
762 switch (request) { 762 switch (request) {
763 /* when I and D space are separate, these will need to be fixed. */
764 case PTRACE_PEEKTEXT: /* read word at location addr. */
765 case PTRACE_PEEKDATA:
766 ret = generic_ptrace_peekdata(child, addr, data);
767 break;
768
769 /* read the word at location addr in the USER area. */ 763 /* read the word at location addr in the USER area. */
770 case PTRACE_PEEKUSR: { 764 case PTRACE_PEEKUSR: {
771 unsigned long tmp; 765 unsigned long tmp;
@@ -787,12 +781,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
787 break; 781 break;
788 } 782 }
789 783
790 /* when I and D space are separate, this will have to be fixed. */
791 case PTRACE_POKETEXT: /* write the word at location addr. */
792 case PTRACE_POKEDATA:
793 ret = generic_ptrace_pokedata(child, addr, data);
794 break;
795
796 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ 784 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
797 ret = -EIO; 785 ret = -EIO;
798 if ((addr & (sizeof(data) - 1)) || addr < 0 || 786 if ((addr & (sizeof(data) - 1)) || addr < 0 ||
@@ -1183,24 +1171,6 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
1183 childregs = task_pt_regs(child); 1171 childregs = task_pt_regs(child);
1184 1172
1185 switch (request) { 1173 switch (request) {
1186 case PTRACE_PEEKDATA:
1187 case PTRACE_PEEKTEXT:
1188 ret = 0;
1189 if (access_process_vm(child, addr, &val, sizeof(u32), 0) !=
1190 sizeof(u32))
1191 ret = -EIO;
1192 else
1193 ret = put_user(val, (unsigned int __user *)datap);
1194 break;
1195
1196 case PTRACE_POKEDATA:
1197 case PTRACE_POKETEXT:
1198 ret = 0;
1199 if (access_process_vm(child, addr, &data, sizeof(u32), 1) !=
1200 sizeof(u32))
1201 ret = -EIO;
1202 break;
1203
1204 case PTRACE_PEEKUSR: 1174 case PTRACE_PEEKUSR:
1205 ret = getreg32(child, addr, &val); 1175 ret = getreg32(child, addr, &val);
1206 if (ret == 0) 1176 if (ret == 0)
@@ -1246,13 +1216,8 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
1246 sizeof(struct user32_fxsr_struct), 1216 sizeof(struct user32_fxsr_struct),
1247 datap); 1217 datap);
1248 1218
1249 case PTRACE_GETEVENTMSG:
1250 ret = put_user(child->ptrace_message,
1251 (unsigned int __user *)compat_ptr(data));
1252 break;
1253
1254 default: 1219 default:
1255 BUG(); 1220 return compat_ptrace_request(child, request, addr, data);
1256 } 1221 }
1257 1222
1258 out: 1223 out: