The patch titled
ptrace: unify FDPIC implementations
has been added to the -mm tree. Its filename is
ptrace-unify-fdpic-implementations.patch
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------------------------------------------------------
Subject: ptrace: unify FDPIC implementations
From: Mike Frysinger <vapier@xxxxxxxxxx>
The Blackfin/FRV/SuperH guys all have the same exact FDPIC ptrace code in
their arch handlers (since they were probably copied & pasted). Since
these ptrace interfaces are an arch independent aspect of the FDPIC code,
unify them in the common ptrace code so new FDPIC ports don't need to copy
and paste this fundamental stuff yet again.
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
Acked-by: Roland McGrath <roland@xxxxxxxxxx>
Acked-by: David Howells <dhowells@xxxxxxxxxx>
Acked-by: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/blackfin/kernel/ptrace.c | 33 ++++++++------------------------
arch/frv/kernel/ptrace.c | 20 -------------------
arch/sh/kernel/ptrace_32.c | 23 ----------------------
kernel/ptrace.c | 20 +++++++++++++++++++
4 files changed, 29 insertions(+), 67 deletions(-)
diff -puN arch/blackfin/kernel/ptrace.c~ptrace-unify-fdpic-implementations arch/blackfin/kernel/ptrace.c
--- a/arch/blackfin/kernel/ptrace.c~ptrace-unify-fdpic-implementations
+++ a/arch/blackfin/kernel/ptrace.c
@@ -292,28 +292,6 @@ long arch_ptrace(struct task_struct *chi
break;
}
-#ifdef CONFIG_BINFMT_ELF_FDPIC
- case PTRACE_GETFDPIC: {
- unsigned long tmp = 0;
-
- switch (addr) {
- case_PTRACE_GETFDPIC_EXEC:
- case PTRACE_GETFDPIC_EXEC:
- tmp = child->mm->context.exec_fdpic_loadmap;
- break;
- case_PTRACE_GETFDPIC_INTERP:
- case PTRACE_GETFDPIC_INTERP:
- tmp = child->mm->context.interp_fdpic_loadmap;
- break;
- default:
- break;
- }
-
- ret = put_user(tmp, datap);
- break;
- }
-#endif
-
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKEDATA:
pr_debug("ptrace: PTRACE_PEEKDATA\n");
@@ -357,8 +335,14 @@ long arch_ptrace(struct task_struct *chi
case PTRACE_PEEKUSR:
switch (addr) {
#ifdef CONFIG_BINFMT_ELF_FDPIC /* backwards compat */
- case PT_FDPIC_EXEC: goto case_PTRACE_GETFDPIC_EXEC;
- case PT_FDPIC_INTERP: goto case_PTRACE_GETFDPIC_INTERP;
+ case PT_FDPIC_EXEC:
+ request = PTRACE_GETFDPIC;
+ addr = PTRACE_GETFDPIC_EXEC;
+ goto case_default;
+ case PT_FDPIC_INTERP:
+ request = PTRACE_GETFDPIC;
+ addr = PTRACE_GETFDPIC_INTERP;
+ goto case_default;
#endif
default:
ret = get_reg(child, addr, datap);
@@ -385,6 +369,7 @@ long arch_ptrace(struct task_struct *chi
0, sizeof(struct pt_regs),
(const void __user *)data);
+ case_default:
default:
ret = ptrace_request(child, request, addr, data);
break;
diff -puN arch/frv/kernel/ptrace.c~ptrace-unify-fdpic-implementations arch/frv/kernel/ptrace.c
--- a/arch/frv/kernel/ptrace.c~ptrace-unify-fdpic-implementations
+++ a/arch/frv/kernel/ptrace.c
@@ -344,26 +344,6 @@ long arch_ptrace(struct task_struct *chi
0, sizeof(child->thread.user->f),
(const void __user *)data);
- case PTRACE_GETFDPIC:
- tmp = 0;
- switch (addr) {
- case PTRACE_GETFDPIC_EXEC:
- tmp = child->mm->context.exec_fdpic_loadmap;
- break;
- case PTRACE_GETFDPIC_INTERP:
- tmp = child->mm->context.interp_fdpic_loadmap;
- break;
- default:
- break;
- }
-
- ret = 0;
- if (put_user(tmp, (unsigned long *) data)) {
- ret = -EFAULT;
- break;
- }
- break;
-
default:
ret = ptrace_request(child, request, addr, data);
break;
diff -puN arch/sh/kernel/ptrace_32.c~ptrace-unify-fdpic-implementations arch/sh/kernel/ptrace_32.c
--- a/arch/sh/kernel/ptrace_32.c~ptrace-unify-fdpic-implementations
+++ a/arch/sh/kernel/ptrace_32.c
@@ -436,29 +436,6 @@ long arch_ptrace(struct task_struct *chi
0, sizeof(struct pt_dspregs),
(const void __user *)data);
#endif
-#ifdef CONFIG_BINFMT_ELF_FDPIC
- case PTRACE_GETFDPIC: {
- unsigned long tmp = 0;
-
- switch (addr) {
- case PTRACE_GETFDPIC_EXEC:
- tmp = child->mm->context.exec_fdpic_loadmap;
- break;
- case PTRACE_GETFDPIC_INTERP:
- tmp = child->mm->context.interp_fdpic_loadmap;
- break;
- default:
- break;
- }
-
- ret = 0;
- if (put_user(tmp, datap)) {
- ret = -EFAULT;
- break;
- }
- break;
- }
-#endif
default:
ret = ptrace_request(child, request, addr, data);
break;
diff -puN kernel/ptrace.c~ptrace-unify-fdpic-implementations kernel/ptrace.c
--- a/kernel/ptrace.c~ptrace-unify-fdpic-implementations
+++ a/kernel/ptrace.c
@@ -594,6 +594,26 @@ int ptrace_request(struct task_struct *c
ret = ptrace_detach(child, data);
break;
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+ case PTRACE_GETFDPIC: {
+ unsigned long tmp = 0;
+
+ switch (addr) {
+ case PTRACE_GETFDPIC_EXEC:
+ tmp = child->mm->context.exec_fdpic_loadmap;
+ break;
+ case PTRACE_GETFDPIC_INTERP:
+ tmp = child->mm->context.interp_fdpic_loadmap;
+ break;
+ default:
+ break;
+ }
+
+ ret = put_user(tmp, (unsigned long __user *) data);
+ break;
+ }
+#endif
+
#ifdef PTRACE_SINGLESTEP
case PTRACE_SINGLESTEP:
#endif
_
Patches currently in -mm which might be from vapier@xxxxxxxxxx are
origin.patch
linux-next.patch
nommu-allow-private-mappings-of-read-only-devices.patch
ad525x_dpot-simplify-duplicated-sysfs-defines.patch
ad525x_dpot-extend-write-argument-to-16bits.patch
ad525x_dpot-add-support-for-spi-parts.patch
ad525x_dpot-add-support-for-ad524x-pots.patch
ad525x_dpot-add-support-for-adn2860-and-ad528x-pots.patch
ad525x_dpot-add-support-for-one-time-programmable-pots.patch
fbdev-bfin-lq035q1-fb-respect-new-ppi-mode-platform-field.patch
ptrace-unify-fdpic-implementations.patch
blackfin-use-use-asm-generic-scatterlisth.patch
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