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| author | Indu Bhagat <indu.bhagat@oracle.com> | 2024-01-15 01:00:27 -0800 |
|---|---|---|
| committer | Indu Bhagat <indu.bhagat@oracle.com> | 2024-01-15 03:31:35 -0800 |
| commit | 448cf9e67d3fe9edbef70d4cfcc32d1816603370 (patch) | |
| tree | 1bc1254a63c673b3d45364a551fe11ba6a7c343a /opcodes/i386-opc.h | |
| parent | 3037cefe56affe48ac53d85b9e33c2c3a408c41f (diff) | |
| download | binutils-448cf9e67d3fe9edbef70d4cfcc32d1816603370.zip binutils-448cf9e67d3fe9edbef70d4cfcc32d1816603370.tar.gz binutils-448cf9e67d3fe9edbef70d4cfcc32d1816603370.tar.bz2 | |
opcodes: x86: new marker for insns that implicitly update stack pointer
Some x86 instructions affect the stack pointer implicitly. Add a new
operand constraint to reflect this. This will be useful for SCFI
implmentation to ensure its correctness.
Mark all push, pop, call, ret, enter, leave, INT, iret instructions.
opcodes/
* i386-gen.c: Update opcode_modifiers.
* i386-opc.h: Add a new constraint.
* i386-opc.tbl: Update the affected instructions.
* i386-tbl.h: Regenerated.
Diffstat (limited to 'opcodes/i386-opc.h')
| -rw-r--r-- | opcodes/i386-opc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h index 889636e..004d9ee 100644 --- a/opcodes/i386-opc.h +++ b/opcodes/i386-opc.h @@ -579,6 +579,8 @@ enum /* Instrucion requires that destination must be distinct from source registers. */ #define DISTINCT_DEST 9 + /* Instruction updates stack pointer implicitly. */ +#define IMPLICIT_STACK_OP 10 OperandConstraint, /* instruction ignores operand size prefix and in Intel mode ignores mnemonic size suffix check. */ |