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| author | H.J. Lu <hjl.tools@gmail.com> | 2019-04-11 08:18:51 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2019-04-11 08:21:30 -0700 |
| commit | 233a00833b984319d5e94db3f5d5d9a735edc984 (patch) | |
| tree | cde032770e8d7027cb298b7d7a1a489b3da62647 /bfd/elf-linker-x86.h | |
| parent | ca4e63310228df72ba47e5b29f4c275e62496dcf (diff) | |
| download | fsf-binutils-gdb-233a00833b984319d5e94db3f5d5d9a735edc984.zip fsf-binutils-gdb-233a00833b984319d5e94db3f5d5d9a735edc984.tar.gz fsf-binutils-gdb-233a00833b984319d5e94db3f5d5d9a735edc984.tar.bz2 | |
x86: Add -z cet-report=[none|warning|error]
Add -z cet-report=[none|warning|error] to report the missing Intel
Indirect Branch Tracking (IBT) and Shadow Stack (SHSTK) properties
in input .note.gnu.property section. -z cet-report=none, which is
the default, will make the linker not report missing properties in
input files. -z cet-report=warning will make the linker issue a
warning for missing properties in input files. -z cet-report=error
will make the linker issue an error for missing properties in input
files. Note that -z ibt will turn off the missing IBT property report
and -z shstk will turn off the missing SHSTK property report.
Supported for Linux/i386 and Linux/x86_64.
bfd/
* elf-linker-x86.h (elf_x86_cet_report): New.
(elf_linker_x86_params): Add cet_report.
* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Report
missing IBT and SHSTK properties if needed.
ld/
* ld.texi: Document -z cet-report=[none|warning|error].
* emulparams/cet.sh: Add -z cet-report=[none|warning|error].
* testsuite/ld-i386/i386.exp: Run -z cet-report=[warning|error]
tests.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/property-x86-cet1.d: New file.
* testsuite/ld-i386/property-x86-cet2a.d: Likewise.
* testsuite/ld-i386/property-x86-cet2b.d: Likewise.
* testsuite/ld-i386/property-x86-cet3a.d: Likewise.
* testsuite/ld-i386/property-x86-cet3b.d: Likewise.
* testsuite/ld-i386/property-x86-cet4a.d: Likewise.
* testsuite/ld-i386/property-x86-cet4b.d: Likewise.
* testsuite/ld-i386/property-x86-cet5a.d: Likewise.
* testsuite/ld-i386/property-x86-cet5b.d: Likewise.
* testsuite/ld-i386/property-x86-cet6.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet.s: Likewise.
* testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet1.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet2a.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet2b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet2b.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet3a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet3a.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet3b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet3b.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet4a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet4a.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet4b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet4b.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5a.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5b.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet6-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet6.d: Likewise.
Diffstat (limited to 'bfd/elf-linker-x86.h')
| -rw-r--r-- | bfd/elf-linker-x86.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/bfd/elf-linker-x86.h b/bfd/elf-linker-x86.h index bd14b71..5ca65f4 100644 --- a/bfd/elf-linker-x86.h +++ b/bfd/elf-linker-x86.h @@ -18,6 +18,16 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ +/* Missing IBT and SHSTK property report control. */ +enum elf_x86_cet_report +{ + cet_report_none = 0, /* Do nothing. */ + cet_report_warning = 1 << 0, /* Issue a warning. */ + cet_report_error = 1 << 1, /* Issue an error. */ + cet_report_ibt = 1 << 2, /* Report missing IBT property. */ + cet_report_shstk = 1 << 3 /* Report missing SHSTK property. */ +}; + /* Used to pass x86-specific linker options from ld to bfd. */ struct elf_linker_x86_params { @@ -39,6 +49,9 @@ struct elf_linker_x86_params /* TRUE if generate a 1-byte NOP as suffix for x86 call instruction. */ unsigned int call_nop_as_suffix : 1; + /* Report missing IBT and SHSTK properties. */ + enum elf_x86_cet_report cet_report; + /* The 1-byte NOP for x86 call instruction. */ char call_nop_byte; }; |