lkml.org 
[lkml]   [2007]   [Oct]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 1/2] [V3] 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>
---
arch/ia64/ia32/elfcore32.h | 1 +
arch/x86_64/ia32/ia32_binfmt.c | 1 +
fs/binfmt_elf.c | 8 ++++----
fs/binfmt_elf_fdpic.c | 8 ++++----
include/asm-i386/elf.h | 1 +
5 files changed, 11 insertions(+), 8 deletions(-)
Index: linux/arch/ia64/ia32/elfcore32.h
===================================================================
--- linux.orig/arch/ia64/ia32/elfcore32.h
+++ linux/arch/ia64/ia32/elfcore32.h
@@ -117,6 +117,7 @@ elf_core_copy_task_fpregs(struct task_st
}

#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)
{
Index: linux/arch/x86_64/ia32/ia32_binfmt.c
===================================================================
--- linux.orig/arch/x86_64/ia32/ia32_binfmt.c
+++ linux/arch/x86_64/ia32/ia32_binfmt.c
@@ -188,6 +188,7 @@ elf_core_copy_task_fpregs(struct task_st
}

#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)
{
Index: linux/fs/binfmt_elf.c
===================================================================
--- linux.orig/fs/binfmt_elf.c
+++ linux/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 s

#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]);
}
@@ -1624,7 +1624,7 @@ static int elf_core_dump(long signr, str
#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();
Index: linux/fs/binfmt_elf_fdpic.c
===================================================================
--- linux.orig/fs/binfmt_elf_fdpic.c
+++ linux/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 s

#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 sign
#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();
Index: linux/include/asm-i386/elf.h
===================================================================
--- linux.orig/include/asm-i386/elf.h
+++ linux/include/asm-i386/elf.h
@@ -129,6 +129,7 @@ extern int dump_task_extended_fpu (struc
#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)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-10-12 04:43    [W:0.156 / U:1.060 seconds]
©2003-2014 Jasper Spaans. Advertise on this site