aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorAlexey Dobriyan <adobriyan@gmail.com>2007-07-17 04:03:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:03 -0700
commitf284ce7269031947326bac6bb19a977705276222 (patch)
tree8b145d42d4da182fb185dacc53b24ca7a2546114 /arch
parentPTRACE_PEEKDATA consolidation (diff)
downloadlinux-dev-f284ce7269031947326bac6bb19a977705276222.tar.xz
linux-dev-f284ce7269031947326bac6bb19a977705276222.zip
PTRACE_POKEDATA consolidation
Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata() function. AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless return EPERM. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/ptrace.c4
-rw-r--r--arch/arm/kernel/ptrace.c7
-rw-r--r--arch/arm26/kernel/ptrace.c7
-rw-r--r--arch/avr32/kernel/ptrace.c6
-rw-r--r--arch/cris/arch-v10/kernel/ptrace.c7
-rw-r--r--arch/cris/arch-v32/kernel/ptrace.c7
-rw-r--r--arch/frv/kernel/ptrace.c4
-rw-r--r--arch/h8300/kernel/ptrace.c5
-rw-r--r--arch/i386/kernel/ptrace.c5
-rw-r--r--arch/m32r/kernel/ptrace.c12
-rw-r--r--arch/m68k/kernel/ptrace.c3
-rw-r--r--arch/m68knommu/kernel/ptrace.c5
-rw-r--r--arch/mips/kernel/ptrace.c6
-rw-r--r--arch/powerpc/kernel/ptrace.c6
-rw-r--r--arch/s390/kernel/ptrace.c5
-rw-r--r--arch/sh/kernel/ptrace.c5
-rw-r--r--arch/sh64/kernel/ptrace.c5
-rw-r--r--arch/um/kernel/ptrace.c6
-rw-r--r--arch/v850/kernel/ptrace.c6
-rw-r--r--arch/x86_64/kernel/ptrace.c5
-rw-r--r--arch/xtensa/kernel/ptrace.c5
21 files changed, 23 insertions, 98 deletions
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index 0cd060598f9a..83a781842266 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -315,9 +315,7 @@ do_sys_ptrace(long request, long pid, long addr, long data,
/* When I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- tmp = data;
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 1);
- ret = (copied == sizeof(tmp)) ? 0 : -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the specified register */
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 9a5d9754c2a2..78c9f1a3d41f 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -677,12 +677,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
*/
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data,
- sizeof(unsigned long), 1);
- if (ret == sizeof(unsigned long))
- ret = 0;
- else
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR:
diff --git a/arch/arm26/kernel/ptrace.c b/arch/arm26/kernel/ptrace.c
index 0d0ead0e0a74..0fefb86970c6 100644
--- a/arch/arm26/kernel/ptrace.c
+++ b/arch/arm26/kernel/ptrace.c
@@ -551,12 +551,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
*/
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data,
- sizeof(unsigned long), 1);
- if (ret == sizeof(unsigned long))
- ret = 0;
- else
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR:
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index 1043fdc2df7f..39060cbeb2a3 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -176,11 +176,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* Write the word in data at location addr */
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data, sizeof(data), 1);
- if (ret == sizeof(data))
- ret = 0;
- else
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR:
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index 74b1b4dc8225..f4f9db698b44 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -103,12 +103,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* Write the word at location address. */
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = 0;
-
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
-
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
/* Write the word at location address in the USER area. */
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index d4d57b741334..38ece0cd47cb 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -146,12 +146,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* Write the word at location address. */
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = 0;
-
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
-
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
/* Write the word at location address in the USER area. */
diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c
index a10f3092fad4..709e9bdc6126 100644
--- a/arch/frv/kernel/ptrace.c
+++ b/arch/frv/kernel/ptrace.c
@@ -168,9 +168,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = -EIO;
if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
break;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) != sizeof(data))
- break;
- ret = 0;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
index 8a7a991b8f76..d32bbf02fc48 100644
--- a/arch/h8300/kernel/ptrace.c
+++ b/arch/h8300/kernel/ptrace.c
@@ -111,10 +111,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index f4bcf1da662a..1c075f58d1f9 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -387,10 +387,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 01a1c9ac8458..57a92ef31a90 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -619,15 +619,9 @@ do_ptrace(long request, struct task_struct *child, long addr, long data)
*/
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data, sizeof(data), 1);
- if (ret == sizeof(data)) {
- ret = 0;
- if (request == PTRACE_POKETEXT) {
- invalidate_cache();
- }
- } else {
- ret = -EIO;
- }
+ ret = generic_ptrace_pokedata(child, addr, data);
+ if (ret == 0 && request == PTRACE_POKETEXT)
+ invalidate_cache();
break;
/*
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 01a3a09c53d9..2cf0690b7882 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -157,8 +157,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- if (access_process_vm(child, addr, &data, sizeof(data), 1) != sizeof(data))
- goto out_eio;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index f550e614aa78..ef70ca070ce2 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -151,10 +151,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index af9d0bec8731..893e7bccf226 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -305,11 +305,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1)
- == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: {
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 581d427148e7..8a177bd9eab4 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -413,11 +413,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* If I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1)
- == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
/* write the word at location addr in the USER area */
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 28afff4e5d1b..f4503ca27630 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -314,10 +314,7 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data)
/* Remove high order bit from address (only for 31 bit). */
addr &= PSW_ADDR_INSN;
/* write the word at location addr. */
- copied = access_process_vm(child, addr, &data, sizeof(data),1);
- if (copied != sizeof(data))
- return -EIO;
- return 0;
+ return generic_ptrace_pokedata(child, addr, data);
case PTRACE_POKEUSR:
/* write the word at location addr in the USER area */
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
index f23f949576a5..891d1d46c902 100644
--- a/arch/sh/kernel/ptrace.c
+++ b/arch/sh/kernel/ptrace.c
@@ -126,10 +126,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c
index 12340e499bfb..df06c6477468 100644
--- a/arch/sh64/kernel/ptrace.c
+++ b/arch/sh64/kernel/ptrace.c
@@ -158,10 +158,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR:
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 1966da6eb363..6916c8888dba 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -64,11 +64,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = -EIO;
- if (access_process_vm(child, addr, &data, sizeof(data),
- 1) != sizeof(data))
- break;
- ret = 0;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c
index 3bedd144e52d..a458ac941b25 100644
--- a/arch/v850/kernel/ptrace.c
+++ b/arch/v850/kernel/ptrace.c
@@ -126,11 +126,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- rval = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1)
- == sizeof(data))
- break;
- rval = -EIO;
+ rval = generic_ptrace_pokedata(child, addr, data);
goto out;
/* Read/write the word at location ADDR in the registers. */
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index 327ff93a38b6..fa6775ef729f 100644
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -359,10 +359,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
break;
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index af182d3a7000..06a13d9b69db 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -128,10 +128,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
- if (access_process_vm(child, addr, &data, sizeof(data), 1)
- == sizeof(data))
- break;
- ret = -EIO;
+ ret = generic_ptrace_pokedata(child, addr, data);
goto out;
case PTRACE_POKEUSR: