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S390: Support guarded-storage core note sections

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Newer Linux kernel versions offer two new register sets in support of the
z/Architecture's guarded storage facility: NT_S390_GS_CB, the
"guarded-storage registers", and NT_S390_GS_BC, the "guarded-storage
broadcast control block".  This patch adds support for the respective core
notes sections to binutils.

bfd/ChangeLog:
	* elf-bfd.h (elfcore_write_s390_gs_cb): Add prototype.
	(elfcore_write_s390_gs_bc): Likewise.
	* elf.c (elfcore_grok_s390_gs_cb): New function.
	(elfcore_grok_s390_gs_bc): New function.
	(elfcore_grok_note): Call them.
	(elfcore_write_s390_gs_cb): New function.
	(elfcore_write_s390_gs_bc): New function.
	(elfcore_write_register_note): Call them.

binutils/ChangeLog:
	* readelf.c (get_note_type): Add NT_S390_GS_CB and NT_S390_GS_BC.

include/ChangeLog:
	* elf/common.h (NT_S390_GS_CB): New macro.
	(NT_S390_GS_BC): Likewise.
This commit is contained in:
Andreas Arnez 2017-06-29 10:30:09 +02:00
parent 1b19ec9710
commit 88ab90e860
7 changed files with 88 additions and 0 deletions
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11
bfd/ChangeLog
View File

@ -1,3 +1,14 @@
2017-06-29 Andreas Arnez <arnez@linux.vnet.ibm.com>
* elf-bfd.h (elfcore_write_s390_gs_cb): Add prototype.
(elfcore_write_s390_gs_bc): Likewise.
* elf.c (elfcore_grok_s390_gs_cb): New function.
(elfcore_grok_s390_gs_bc): New function.
(elfcore_grok_note): Call them.
(elfcore_write_s390_gs_cb): New function.
(elfcore_write_s390_gs_bc): New function.
(elfcore_write_register_note): Call them.
2017-06-28 H.J. Lu <hongjiu.lu@intel.com>
* libbfd.c (_bfd_generic_get_section_contents): Don't call

4
bfd/elf-bfd.h
View File

@ -2533,6 +2533,10 @@ 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_s390_gs_cb
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_gs_bc
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_arm_vfp
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_aarch_tls

56
bfd/elf.c
View File

@ -9190,6 +9190,18 @@ 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_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note);
}
static bfd_boolean
elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note);
}
static bfd_boolean
elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note)
{
@ -9668,6 +9680,20 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
else
return TRUE;
case NT_S390_GS_CB:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_s390_gs_bc (abfd, note);
else
return TRUE;
case NT_S390_GS_BC:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_s390_gs_cb (abfd, note);
else
return TRUE;
case NT_ARM_VFP:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
@ -10727,6 +10753,32 @@ elfcore_write_s390_vxrs_high (bfd *abfd,
s390_vxrs_high, size);
}
char *
elfcore_write_s390_gs_cb (bfd *abfd,
char *buf,
int *bufsiz,
const void *s390_gs_cb,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_S390_GS_CB,
s390_gs_cb, size);
}
char *
elfcore_write_s390_gs_bc (bfd *abfd,
char *buf,
int *bufsiz,
const void *s390_gs_bc,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_S390_GS_BC,
s390_gs_bc, size);
}
char *
elfcore_write_arm_vfp (bfd *abfd,
char *buf,
@ -10815,6 +10867,10 @@ elfcore_write_register_note (bfd *abfd,
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-s390-gs-cb") == 0)
return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-s390-gs-bc") == 0)
return elfcore_write_s390_gs_bc (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)

4
binutils/ChangeLog
View File

@ -1,3 +1,7 @@
2017-06-29 Andreas Arnez <arnez@linux.vnet.ibm.com>
* readelf.c (get_note_type): Add NT_S390_GS_CB and NT_S390_GS_BC.
2017-06-28 H.J. Lu <hongjiu.lu@intel.com>
* objdump.c (dump_relocs_in_section): Cast to ufile_ptr when

4
binutils/readelf.c
View File

@ -16158,6 +16158,10 @@ get_note_type (unsigned e_type)
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_S390_GS_CB:
return _("NT_S390_GS_CB (s390 guarded-storage registers)");
case NT_S390_GS_BC:
return _("NT_S390_GS_BC (s390 guarded-storage broadcast control)");
case NT_ARM_VFP:
return _("NT_ARM_VFP (arm VFP registers)");
case NT_ARM_TLS:

5
include/ChangeLog
View File

@ -1,3 +1,8 @@
2017-06-29 Andreas Arnez <arnez@linux.vnet.ibm.com>
* elf/common.h (NT_S390_GS_CB): New macro.
(NT_S390_GS_BC): Likewise.
2017-06-28 Tamar Christina <tamar.christina@arm.com>
* opcode/aarch64.h: (AARCH64_FEATURE_DOTPROD): New.

4
include/elf/common.h
View File

@ -598,6 +598,10 @@
/* note name must be "LINUX". */
#define NT_S390_VXRS_HIGH 0x30a /* S390 vector registers 16-31 */
/* note name must be "LINUX". */
#define NT_S390_GS_CB 0x30b /* s390 guarded storage registers */
/* note name must be "LINUX". */
#define NT_S390_GS_BC 0x30c /* s390 guarded storage broadcast control block */
/* 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. */