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S390: Support new vector register sections

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The IBM z13 has new 128-bit wide vector registers v0-v31, where v0-v15
include the existing 64-bit wide floating point registers.  The Linux
kernel presents the vector registers as two additional register sets,
one for the right halves of v0-v15 and another one for the full
registers v16-v31.  Thus a new core file may contain two new register
note sections, and this patch adds support to binutils for them.

bfd/
	* elf-bfd.h (elfcore_write_s390_vxrs_low): Add prototype.
	(elfcore_write_s390_vxrs_high): Likewise.
	* elf.c (elfcore_grok_s390_vxrs_low): New function.
	(elfcore_grok_s390_vxrs_high): New function.
	(elfcore_grok_note): Call them.
	(elfcore_write_s390_vxrs_low): New function.
	(elfcore_write_s390_vxrs_high): New function.
	(elfcore_write_register_note): Call them.

binutils/
	* readelf.c (get_note_type): Add NT_S390_VXRS_LOW and
	NT_S390_VXRS_HIGH.

include/elf/
	* common.h (NT_S390_VXRS_LOW): New macro.
	(NT_S390_VXRS_HIGH): Likewise.
This commit is contained in:
Andreas Arnez 2015-02-20 10:39:53 +01:00 committed by Andreas Krebbel
parent dc049bf460
commit 4ef9f41a95
7 changed files with 88 additions and 0 deletions
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11
bfd/ChangeLog
View File

@ -1,3 +1,14 @@
2015-02-20 Andreas Arnez <arnez@linux.vnet.ibm.com>
* elf-bfd.h (elfcore_write_s390_vxrs_low): Add prototype.
(elfcore_write_s390_vxrs_high): Likewise.
* elf.c (elfcore_grok_s390_vxrs_low): New function.
(elfcore_grok_s390_vxrs_high): New function.
(elfcore_grok_note): Call them.
(elfcore_write_s390_vxrs_low): New function.
(elfcore_write_s390_vxrs_high): New function.
(elfcore_write_register_note): Call them.
2015-02-19 Branko Drevensek <branko.drevensek@gmail.com>
PR 17995

4
bfd/elf-bfd.h
View File

@ -2285,6 +2285,10 @@ extern char *elfcore_write_s390_system_call
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_tdb
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_vxrs_low
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_vxrs_high
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_arm_vfp
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_aarch_tls

55
bfd/elf.c
View File

@ -8250,6 +8250,18 @@ elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note)
return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note);
}
static bfd_boolean
elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note);
}
static bfd_boolean
elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note);
}
static bfd_boolean
elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note)
{
@ -8714,6 +8726,20 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
else
return TRUE;
case NT_S390_VXRS_LOW:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_s390_vxrs_low (abfd, note);
else
return TRUE;
case NT_S390_VXRS_HIGH:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_s390_vxrs_high (abfd, note);
else
return TRUE;
case NT_ARM_VFP:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
@ -9579,6 +9605,31 @@ elfcore_write_s390_tdb (bfd *abfd,
note_name, NT_S390_TDB, s390_tdb, size);
}
char *
elfcore_write_s390_vxrs_low (bfd *abfd,
char *buf,
int *bufsiz,
const void *s390_vxrs_low,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size);
}
char *
elfcore_write_s390_vxrs_high (bfd *abfd,
char *buf,
int *bufsiz,
const void *s390_vxrs_high,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_S390_VXRS_HIGH,
s390_vxrs_high, size);
}
char *
elfcore_write_arm_vfp (bfd *abfd,
char *buf,
@ -9663,6 +9714,10 @@ elfcore_write_register_note (bfd *abfd,
return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-s390-tdb") == 0)
return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-s390-vxrs-low") == 0)
return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-s390-vxrs-high") == 0)
return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-arm-vfp") == 0)
return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-aarch-tls") == 0)

5
binutils/ChangeLog
View File

@ -1,3 +1,8 @@
2015-02-20 Andreas Arnez <arnez@linux.vnet.ibm.com>
* readelf.c (get_note_type): Add NT_S390_VXRS_LOW and
NT_S390_VXRS_HIGH.
2015-02-13 Nick Clifton <nickc@redhat.com>
PR binutils/17512

4
binutils/readelf.c
View File

@ -14513,6 +14513,10 @@ get_note_type (unsigned e_type)
return _("NT_S390_SYSTEM_CALL (s390 system call restart data)");
case NT_S390_TDB:
return _("NT_S390_TDB (s390 transaction diagnostic block)");
case NT_S390_VXRS_LOW:
return _("NT_S390_VXRS_LOW (s390 vector registers 0-15 upper half)");
case NT_S390_VXRS_HIGH:
return _("NT_S390_VXRS_HIGH (s390 vector registers 16-31)");
case NT_ARM_VFP:
return _("NT_ARM_VFP (arm VFP registers)");
case NT_ARM_TLS:

5
include/elf/ChangeLog
View File

@ -1,3 +1,8 @@
2015-02-20 Andreas Arnez <arnez@linux.vnet.ibm.com>
* common.h (NT_S390_VXRS_LOW): New macro.
(NT_S390_VXRS_HIGH): Likewise.
2015-01-28 James Bowman <james.bowman@ftdichip.com>
* common.h (EM_FT32): Define.

4
include/elf/common.h
View File

@ -557,6 +557,10 @@
/* note name must be "LINUX". */
#define NT_S390_TDB 0x308 /* S390 transaction diagnostic block */
/* note name must be "LINUX". */
#define NT_S390_VXRS_LOW 0x309 /* S390 vector registers 0-15 upper half */
/* note name must be "LINUX". */
#define NT_S390_VXRS_HIGH 0x30a /* S390 vector registers 16-31 */
/* note name must be "LINUX". */
#define NT_ARM_VFP 0x400 /* ARM VFP registers */
/* The following definitions should really use NT_AARCH_..., but defined
this way for compatibility with Linux. */