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authorAndreas Krebbel <krebbel@linux.vnet.ibm.com>2017-06-08 17:24:50 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2017-06-23 08:00:46 +0200
commitb4cbbe8f7294070cc93a71ace78f134965ddad82 (patch)
tree1780b64a6f43485b4b815456f855e76d9852af7f /elfcpp
parent790ba5c89893f31dabb6d8e85c8d4be61c52ad99 (diff)
downloadbinutils-gdb-b4cbbe8f7294070cc93a71ace78f134965ddad82.tar.gz
S/390: Add support for pgste marker
This patch adds a new S/390 specific segment type: PT_S390_PGSTE. For binaries marked with that segment the kernel will allocate 4k page tables. The only user so far will be qemu. ld/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * Makefile.in: Add s390.em as build dependency. * emulparams/elf64_s390.sh (EXTRA_EM_FILE): Add s390.em. * emultempl/s390.em: New file. * gen-doc.texi: Add documentation for --s390-pgste option. * ld.texinfo: Likewise. include/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elf/s390.h (PT_S390_PGSTE): Define macro. binutils/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * readelf.c (get_s390_segment_type): Add support for the new segment type PT_S390_PGSTE. (get_segment_type): Call get_s390_segment_type. elfcpp/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elfcpp.h (enum PT): Add PT_S390_PGSTE to enum. bfd/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elf-s390.h: New file. * elf64-s390.c (struct elf_s390_link_hash_table): Add params field. (elf_s390_additional_program_headers): New function. (elf_s390_modify_segment_map): New function. (bfd_elf_s390_set_options): New function. (elf_backend_additional_program_headers) (elf_backend_modify_segment_map): Add macro definitions.
Diffstat (limited to 'elfcpp')
-rw-r--r--elfcpp/elfcpp.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/elfcpp/elfcpp.h b/elfcpp/elfcpp.h
index cce40d41ded..82eb37feb3e 100644
--- a/elfcpp/elfcpp.h
+++ b/elfcpp/elfcpp.h
@@ -515,7 +515,9 @@ enum PT
// Platform architecture compatibility information
PT_AARCH64_ARCHEXT = 0x70000000,
// Exception unwind tables
- PT_AARCH64_UNWIND = 0x70000001
+ PT_AARCH64_UNWIND = 0x70000001,
+ // 4k page table size
+ PT_S390_PGSTE = 0x70000000,
};
// The valid bit flags found in the Phdr p_flags field.