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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-06-21 08:28:30 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-06-21 08:28:43 -0700 |
| commit | 9fef80d683d79934bacd3221f5252ce8c14ff5c0 (patch) | |
| tree | 9d6a03c5bad5c175d3a2a5dd41034c45a6520956 /gas/config | |
| parent | 7adc0a8174f1233f6d92edd0671c18c9870e64e7 (diff) | |
| download | gdb-9fef80d683d79934bacd3221f5252ce8c14ff5c0.zip gdb-9fef80d683d79934bacd3221f5252ce8c14ff5c0.tar.gz gdb-9fef80d683d79934bacd3221f5252ce8c14ff5c0.tar.bz2 | |
x86: CET v2.0: Update NOTRACK prefix
Update NOTRACK prefix handling to support memory indirect branch for
CET v2.0:
https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf
gas/
* config/tc-i386.c (md_assemble): Update NOTRACK prefix check.
* testsuite/gas/i386/notrack-intel.d: Updated.
* testsuite/gas/i386/notrack.d: Likewise.
* testsuite/gas/i386/notrackbad.l: Likewise.
* testsuite/gas/i386/x86-64-notrack-intel.d: Likewise.
* testsuite/gas/i386/x86-64-notrack.d: Likewise.
* testsuite/gas/i386/x86-64-notrackbad.l: Likewise.
* testsuite/gas/i386/notrack.s: Add NOTRACK prefix tests with
memory indirect branch.
* testsuite/gas/i386/x86-64-notrack.s: Likewise.
* testsuite/gas/i386/notrackbad.s: Remove memory indirect branch
with NOTRACK prefix.
* testsuite/gas/i386/x86-64-notrackbad.s: Likewise.
opcodes/
* i386-dis.c (reg_table): Swap indirEv with NOTRACK on "call{&|}"
and "jmp{&|}".
(NOTRACK_Fixup): Support memory indirect branch with NOTRACK
prefix.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-i386.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 6c1091e..456be9e 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -3713,13 +3713,8 @@ md_assemble (char *line) as_bad (_("expecting valid branch instruction after `bnd'")); /* Check NOTRACK prefix. */ - if (i.notrack_prefix - && (!i.tm.opcode_modifier.notrackprefixok - || i.reg_operands != 1 - || i.disp_operands != 0 - || i.mem_operands != 0 - || i.imm_operands != 0)) - as_bad (_("expecting register indirect branch instruction after `notrack'")); + if (i.notrack_prefix && !i.tm.opcode_modifier.notrackprefixok) + as_bad (_("expecting indirect branch instruction after `notrack'")); if (i.tm.cpu_flags.bitfield.cpumpx) { |