From 88ab90e860a46a1123fcfd13bfe51cd360e9c3f7 Mon Sep 17 00:00:00 2001 From: Andreas Arnez Date: Thu, 29 Jun 2017 10:30:09 +0200 Subject: S390: Support guarded-storage core note sections 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. --- bfd/ChangeLog | 11 +++++++++++ bfd/elf-bfd.h | 4 ++++ bfd/elf.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+) (limited to 'bfd') diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ad9eecb..9c62235 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,14 @@ +2017-06-29 Andreas Arnez + + * 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 * libbfd.c (_bfd_generic_get_section_contents): Don't call diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index b889720..92a8e02 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -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 diff --git a/bfd/elf.c b/bfd/elf.c index 76c6a5c..a238d39 100644 --- a/bfd/elf.c +++ b/bfd/elf.c @@ -9191,6 +9191,18 @@ elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *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) { return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", 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) @@ -10728,6 +10754,32 @@ elfcore_write_s390_vxrs_high (bfd *abfd, } 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, int *bufsiz, @@ -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) -- cgit v1.1