x86: replace NT_PRXFPREG with ELF_CORE_XFPREG_TYPE #define

Replace NT_PRXFPREG with ELF_CORE_XFPREG_TYPE in the coredump code which
allows for more flexibility in the note type for the state of 'extended
floating point' implementations in coredumps.  New note types can now be
added with an appropriate #define.

This does #define ELF_CORE_XFPREG_TYPE to be NT_PRXFPREG in all
current users so there's are no change in behaviour.

This will let us use different note types on powerpc for the Altivec/VMX
state that some PowerPC cpus have (G4, PPC970, POWER6) and for the SPE
(signal processing extension) state that some embedded PowerPC cpus from
Freescale have.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.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>

diff --git a/arch/ia64/ia32/elfcore32.h b/arch/ia64/ia32/elfcore32.h
index a47f63b204fbbc8d1cf02b982dab0d2992aeac0d..446c9aac924dce0271f14068dcd99ee4e84907aa 100644 (file)
--- a/arch/ia64/ia32/elfcore32.h
+++ b/arch/ia64/ia32/elfcore32.h
@@ -117,6 +117,7 @@ elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpr
 }
 
 #define ELF_CORE_COPY_XFPREGS 1
+#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
 static inline int
 elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
 {

diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
index dffd2ac72747b59836de76618f0c74089778424b..d3c53e8b05c0ed8a1b51422948024d4849e0ea91 100644 (file)
--- a/arch/x86/ia32/ia32_binfmt.c
+++ b/arch/x86/ia32/ia32_binfmt.c
@@ -188,6 +188,7 @@ elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpr
 }
 
 #define ELF_CORE_COPY_XFPREGS 1
+#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
 static inline int 
 elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
 {

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index f3037c645ca900cdd446ad3f8153e37db8e6d1f5..2f31c4c3fd48500fc236564e787bb47d2c093289 100644 (file)
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1411,7 +1411,7 @@ struct elf_thread_status
        elf_fpregset_t fpu;             /* NT_PRFPREG */
        struct task_struct *thread;
 #ifdef ELF_CORE_COPY_XFPREGS
-       elf_fpxregset_t xfpu;           /* NT_PRXFPREG */
+       elf_fpxregset_t xfpu;           /* ELF_CORE_XFPREG_TYPE */
 #endif
        struct memelfnote notes[3];
        int num_notes;
@@ -1446,8 +1446,8 @@ static int elf_dump_thread_status(long signr, struct elf_thread_status *t)
 
 #ifdef ELF_CORE_COPY_XFPREGS
        if (elf_core_copy_task_xfpregs(p, &t->xfpu)) {
-               fill_note(&t->notes[2], "LINUX", NT_PRXFPREG, sizeof(t->xfpu),
-                         &t->xfpu);
+               fill_note(&t->notes[2], "LINUX", ELF_CORE_XFPREG_TYPE,
+                         sizeof(t->xfpu), &t->xfpu);
                t->num_notes++;
                sz += notesize(&t->notes[2]);
        }
@@ -1621,7 +1621,7 @@ static int elf_core_dump(long signr, struct pt_regs *regs, struct file *file)
 #ifdef ELF_CORE_COPY_XFPREGS
        if (elf_core_copy_task_xfpregs(current, xfpu))
                fill_note(notes + numnote++,
-                         "LINUX", NT_PRXFPREG, sizeof(*xfpu), xfpu);
+                         "LINUX", ELF_CORE_XFPREG_TYPE, sizeof(*xfpu), xfpu);
 #endif 
   
        fs = get_fs();

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index c5ca2f0aca7f5c846e0f89e78fc69e919b7dea7c..faae021895985a591461ba98f3c6459ebdf915d6 100644 (file)
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1417,7 +1417,7 @@ struct elf_thread_status
        elf_fpregset_t fpu;             /* NT_PRFPREG */
        struct task_struct *thread;
 #ifdef ELF_CORE_COPY_XFPREGS
-       elf_fpxregset_t xfpu;           /* NT_PRXFPREG */
+       elf_fpxregset_t xfpu;           /* ELF_CORE_XFPREG_TYPE */
 #endif
        struct memelfnote notes[3];
        int num_notes;
@@ -1453,8 +1453,8 @@ static int elf_dump_thread_status(long signr, struct elf_thread_status *t)
 
 #ifdef ELF_CORE_COPY_XFPREGS
        if (elf_core_copy_task_xfpregs(p, &t->xfpu)) {
-               fill_note(&t->notes[2], "LINUX", NT_PRXFPREG, sizeof(t->xfpu),
-                         &t->xfpu);
+               fill_note(&t->notes[2], "LINUX", ELF_CORE_XFPREG_TYPE,
+                         sizeof(t->xfpu), &t->xfpu);
                t->num_notes++;
                sz += notesize(&t->notes[2]);
        }
@@ -1690,7 +1690,7 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs,
 #ifdef ELF_CORE_COPY_XFPREGS
        if (elf_core_copy_task_xfpregs(current, xfpu))
                fill_note(notes + numnote++,
-                         "LINUX", NT_PRXFPREG, sizeof(*xfpu), xfpu);
+                         "LINUX", ELF_CORE_XFPREG_TYPE, sizeof(*xfpu), xfpu);
 #endif
 
        fs = get_fs();

diff --git a/include/asm-x86/elf_32.h b/include/asm-x86/elf_32.h
index b32df3a332da12853ff4ea102411bd81c13a59d5..af45f315435b76bd2017c87f07c855a9edc90ce4 100644 (file)
--- a/include/asm-x86/elf_32.h
+++ b/include/asm-x86/elf_32.h
@@ -129,6 +129,7 @@ extern int dump_task_extended_fpu (struct task_struct *, struct user_fxsr_struct
 #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 #define ELF_CORE_COPY_XFPREGS(tsk, elf_xfpregs) dump_task_extended_fpu(tsk, elf_xfpregs)
+#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
 
 #define VDSO_HIGH_BASE         (__fix_to_virt(FIX_VDSO))
 #define VDSO_CURRENT_BASE      ((unsigned long)current->mm->context.vdso)