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SUSE:SLE-12-SP2:GA
gdb.783
0001-S390-Support-new-vector-register-sections....
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File 0001-S390-Support-new-vector-register-sections.patch of Package gdb.783
From 4ef9f41a9538c9c7e4e540277e437b137cb64c4c Mon Sep 17 00:00:00 2001 From: Andreas Arnez <arnez@linux.vnet.ibm.com> Date: Fri, 20 Feb 2015 10:39:53 +0100 Subject: [PATCH] S390: Support new vector register sections 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. --- bfd/ChangeLog | 11 +++++++++++ bfd/elf-bfd.h | 4 ++++ bfd/elf.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++ include/elf/ChangeLog | 5 +++++ include/elf/common.h | 4 ++++ 7 files changed, 88 insertions(+) diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 495053d..156eec7 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -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 diff --git a/bfd/elf.c b/bfd/elf.c index 0aa5f8e..14bc531 100644 --- a/bfd/elf.c +++ b/bfd/elf.c @@ -8251,6 +8251,18 @@ elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *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) { return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", 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) @@ -9580,6 +9606,31 @@ elfcore_write_s390_tdb (bfd *abfd, } 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, int *bufsiz, @@ -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) diff --git a/include/elf/common.h b/include/elf/common.h index ae7b5f8..70778bf 100644 --- a/include/elf/common.h +++ b/include/elf/common.h @@ -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. */ -- 1.8.1.4
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