The patch titled
m32r: convert to generic sys_ptrace
has been removed from the -mm tree. Its filename was
m32r-convert-to-generic-sys_ptrace.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: m32r: convert to generic sys_ptrace
From: Christoph Hellwig <hch@xxxxxx>
Convert m32r to the generic sys_ptrace. The conversion requires an
architecture hook after ptrace_attach which this patch adds. The hook
will also be needed for a conersion of ia64 to the generic ptrace code.
Thanks to Hirokazu Takata for fixing a bug in the first version of this
code.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Cc: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/m32r/kernel/ptrace.c | 42 ++----------------------------------
include/asm-m32r/ptrace.h | 5 +++-
kernel/ptrace.c | 10 ++++++++
3 files changed, 17 insertions(+), 40 deletions(-)
diff -puN arch/m32r/kernel/ptrace.c~m32r-convert-to-generic-sys_ptrace arch/m32r/kernel/ptrace.c
--- a/arch/m32r/kernel/ptrace.c~m32r-convert-to-generic-sys_ptrace
+++ a/arch/m32r/kernel/ptrace.c
@@ -570,7 +570,7 @@ withdraw_debug_trap(struct pt_regs *regs
}
}
-static void
+void
init_debug_traps(struct task_struct *child)
{
struct debug_trap *p = &child->thread.debug_trap;
@@ -593,8 +593,8 @@ void ptrace_disable(struct task_struct *
/* nothing to do.. */
}
-static int
-do_ptrace(long request, struct task_struct *child, long addr, long data)
+long
+arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
int ret;
@@ -720,42 +720,6 @@ do_ptrace(long request, struct task_stru
return ret;
}
-asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
-{
- struct task_struct *child;
- int ret;
-
- lock_kernel();
- if (request == PTRACE_TRACEME) {
- ret = ptrace_traceme();
- goto out;
- }
-
- child = ptrace_get_task_struct(pid);
- if (IS_ERR(child)) {
- ret = PTR_ERR(child);
- goto out;
- }
-
- if (request == PTRACE_ATTACH) {
- ret = ptrace_attach(child);
- if (ret == 0)
- init_debug_traps(child);
- goto out_tsk;
- }
-
- ret = ptrace_check_attach(child, request == PTRACE_KILL);
- if (ret == 0)
- ret = do_ptrace(request, child, addr, data);
-
-out_tsk:
- put_task_struct(child);
-out:
- unlock_kernel();
-
- return ret;
-}
-
/* notification of system call entry/exit
* - triggered by current->work.syscall_trace
*/
diff -puN include/asm-m32r/ptrace.h~m32r-convert-to-generic-sys_ptrace include/asm-m32r/ptrace.h
--- a/include/asm-m32r/ptrace.h~m32r-convert-to-generic-sys_ptrace
+++ a/include/asm-m32r/ptrace.h
@@ -120,7 +120,10 @@ struct pt_regs {
#include <asm/m32r.h> /* M32R_PSW_BSM, M32R_PSW_BPM */
-#define __ARCH_SYS_PTRACE 1
+struct task_struct;
+extern void init_debug_traps(struct task_struct *);
+#define arch_ptrace_attach(child) \
+ init_debug_traps(child)
#if defined(CONFIG_ISA_M32R2) || defined(CONFIG_CHIP_VDEC2)
#define user_mode(regs) ((M32R_PSW_BPM & (regs)->psw) != 0)
diff -puN kernel/ptrace.c~m32r-convert-to-generic-sys_ptrace kernel/ptrace.c
--- a/kernel/ptrace.c~m32r-convert-to-generic-sys_ptrace
+++ a/kernel/ptrace.c
@@ -453,6 +453,10 @@ struct task_struct *ptrace_get_task_stru
return child;
}
+#ifndef arch_ptrace_attach
+#define arch_ptrace_attach(child) do { } while (0)
+#endif
+
#ifndef __ARCH_SYS_PTRACE
asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
{
@@ -476,6 +480,12 @@ asmlinkage long sys_ptrace(long request,
if (request == PTRACE_ATTACH) {
ret = ptrace_attach(child);
+ /*
+ * Some architectures need to do book-keeping after
+ * a ptrace attach.
+ */
+ if (!ret)
+ arch_ptrace_attach(child);
goto out_put_task_struct;
}
_
Patches currently in -mm which might be from hch@xxxxxx are
origin.patch
partially-fix-up-the-lookup_one_noperm-mess.patch
git-xfs.patch
kill-declare_mutex_locked.patch
remove-unneded-lock_kernel-in-driver-block-loopc.patch
ufs-move-non-layout-parts-of-ufs_fsh-to-fs-ufs.patch
fix-execute-checking-in-permission.patch
exec-remove-unnecessary-check-for-mnt_noexec.patch
fix-f_version-type-should-be-u64-instead-of-unsigned-long.patch
f_dupfd_cloexec-implementation.patch
f_dupfd_cloexec-implementation-fix-2.patch
unprivileged-mounts-add-user-mounts-to-the-kernel.patch
unprivileged-mounts-allow-unprivileged-umount.patch
unprivileged-mounts-account-user-mounts.patch
unprivileged-mounts-propagate-error-values-from-clone_mnt.patch
unprivileged-mounts-allow-unprivileged-bind-mounts.patch
unprivileged-mounts-put-declaration-of-put_filesystem-in-fsh.patch
unprivileged-mounts-allow-unprivileged-mounts.patch
unprivileged-mounts-allow-unprivileged-fuse-mounts.patch
unprivileged-mounts-propagation-inherit-owner-from-parent.patch
unprivileged-mounts-add-no-submounts-flag.patch
ecryptfs-allow-lower-fs-to-interpret-attr_kill_sid.patch
knfsd-only-set-attr_kill_sid-if-attr_mode-isnt-being-explicitly-set.patch
reiserfs-turn-of-attr_kill_sid-at-beginning-of-reiserfs_setattr.patch
unionfs-fix-unionfs_setattr-to-handle-attr_kill_sid.patch
vfs-make-notify_change-pass-attr_kill_sid-to-setattr-operations.patch
nfs-if-attr_kill_sid-bits-are-set-then-skip-mode-change.patch
cifs-ignore-mode-change-if-its-just-for-clearing-setuid-setgid-bits.patch
r-o-bind-mounts-filesystem-helpers-for-custom-struct-files.patch
r-o-bind-mounts-rearrange-may_open-to-be-r-o-friendly.patch
r-o-bind-mounts-give-permission-a-local-mnt-variable.patch
r-o-bind-mounts-stub-functions.patch
r-o-bind-mounts-elevate-write-count-during-entire-ncp_ioctl.patch
r-o-bind-mounts-elevate-write-count-during-entire-ncp_ioctl-fix.patch
r-o-bind-mounts-elevate-write-count-for-do_utimes-touch-command-causes-oops.patch
r-o-bind-mounts-track-number-of-mount-writers.patch
r-o-bind-mounts-honor-r-w-changes-at-do_remount-time.patch
make-reiserfs-stop-using-struct-file-for-internal.patch
revoke-special-mmap-handling.patch
revoke-core-code.patch
revoke-support-for-ext2-and-ext3.patch
revoke-add-documentation.patch
revoke-wire-up-i386-system-calls.patch
exportfs-add-fid-type.patch
exportfs-add-new-methods.patch
ext2-new-export-ops.patch
ext3-new-export-ops.patch
ext4-new-export-ops.patch
efs-new-export-ops.patch
jfs-new-export-ops.patch
ntfs-new-export-ops.patch
xfs-new-export-ops.patch
fat-new-export-ops.patch
isofs-new-export-ops.patch
shmem-new-export-ops.patch
reiserfs-new-export-ops.patch
gfs2-new-export-ops.patch
ocfs2-new-export-ops.patch
exportfs-remove-old-methods.patch
exportfs-make-struct-export_operations-const.patch
exportfs-update-documentation.patch
vfs-allow-filesystems-to-implement-atomic-opentruncate.patch
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