e25eea89bb
Normally objtool ensures a function keeps the stack layout invariant. But there is a useful exception, it is possible to stuff the return stack in order to 'inject' a 'call': push $fun ret In this case the invariant mentioned above is violated. Add an objtool HINT to annotate this and allow a function exit with a modified stack frame. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200416115118.690601403@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| .. | ||
| alpha/include | ||
| arc/include/uapi/asm | ||
| arm/include | ||
| arm64/include | ||
| csky/include/uapi/asm | ||
| h8300/include | ||
| hexagon/include/uapi/asm | ||
| ia64/include | ||
| microblaze/include/uapi/asm | ||
| mips/include | ||
| parisc/include/uapi/asm | ||
| powerpc/include | ||
| riscv/include/uapi/asm | ||
| s390/include | ||
| sh/include | ||
| sparc/include | ||
| x86 | ||
| xtensa/include | ||