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Re: [PATCH] [PPC] VSX registers support on core files
- From: Luis Machado <luisgpm at linux dot vnet dot ibm dot com>
- To: binutils at sourceware dot org
- Date: Thu, 10 Jul 2008 18:28:59 -0300
- Subject: Re: [PATCH] [PPC] VSX registers support on core files
- References: <1215714876.2282.9.camel@gargoyle>
- Reply-to: luisgpm at linux dot vnet dot ibm dot com
On Thu, 2008-07-10 at 15:34 -0300, Luis Machado wrote:
> Hi folks,
>
> This patch adds VSX registers support for core files by adding one
> more
> note section.
This updated patch adds VSX support to readelf as well.
Luis
2008-07-10 Luis Machado <luisgpm@br.ibm.com>
* bfd/elf-bfd.h: Declare elfcore_write_ppc_vsx.
* bfd/elf.c (elfcore_grok_ppc_vsx): New function.
(elfcore_write_ppc_vsx): New function
(elfcore_grok_note): Handle VSX notes.
(elfcore_write_register_note): Handle VSX notes.
* include/elf/common.h: Define NT_PPC_VSX.
* binutils/readelf.c (get_note_type): Handle VSX notes.
Index: bfd/elf-bfd.h
===================================================================
--- bfd/elf-bfd.h.orig 2008-05-24 09:14:59.000000000 -0700
+++ bfd/elf-bfd.h 2008-07-10 13:49:06.000000000 -0700
@@ -2141,6 +2141,8 @@
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_ppc_vmx
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_vsx
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_lwpstatus
(bfd *, char *, int *, long, int, const void *);
extern char *elfcore_write_register_note
Index: bfd/elf.c
===================================================================
--- bfd/elf.c.orig 2008-07-09 18:32:22.000000000 -0700
+++ bfd/elf.c 2008-07-10 13:49:06.000000000 -0700
@@ -7553,6 +7553,11 @@
return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note);
}
+static bfd_boolean
+elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note)
+{
+ return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note);
+}
#if defined (HAVE_PRPSINFO_T)
typedef prpsinfo_t elfcore_psinfo_t;
@@ -7908,6 +7913,13 @@
else
return TRUE;
+ case NT_PPC_VSX:
+ if (note->namesz == 6
+ && strcmp (note->namedata, "LINUX") == 0)
+ return elfcore_grok_ppc_vsx (abfd, note);
+ else
+ return TRUE;
+
case NT_PRPSINFO:
case NT_PSINFO:
if (bed->elf_backend_grok_psinfo)
@@ -8475,6 +8487,18 @@
}
char *
+elfcore_write_ppc_vsx (bfd *abfd,
+ char *buf,
+ int *bufsiz,
+ const void *ppc_vsx,
+ int size)
+{
+ char *note_name = "LINUX";
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, NT_PPC_VSX, ppc_vsx, size);
+}
+
+char *
elfcore_write_register_note (bfd *abfd,
char *buf,
int *bufsiz,
@@ -8488,6 +8512,8 @@
return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-ppc-vmx") == 0)
return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size);
+ if (strcmp (section, ".reg-ppc-vsx") == 0)
+ return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size);
return NULL;
}
Index: include/elf/common.h
===================================================================
--- include/elf/common.h.orig 2008-06-18 04:03:03.000000000 -0700
+++ include/elf/common.h 2008-07-10 13:49:06.000000000 -0700
@@ -443,6 +443,8 @@
/* note name must be "LINUX". */
#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
/* note name must be "LINUX". */
+#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
+ /* note name must be "LINUX". */
/* Note segments for core files on dir-style procfs systems. */
Index: binutils/readelf.c
===================================================================
--- binutils/readelf.c.orig 2008-07-09 18:32:23.000000000 -0700
+++ binutils/readelf.c 2008-07-10 13:52:14.000000000 -0700
@@ -9934,6 +9934,8 @@
return _("NT_PRXFPREG (user_xfpregs structure)");
case NT_PPC_VMX:
return _("NT_PPC_VMX (ppc Altivec registers)");
+ case NT_PPC_VSX:
+ return _("NT_PPC_VSX (ppc VSX registers)");
case NT_PSTATUS:
return _("NT_PSTATUS (pstatus structure)");
case NT_FPREGS: