search for: speculativeloadharden

Displaying 5 results from an estimated 5 matches for "speculativeloadharden".

2019 Sep 16
2
Spectre V1 Mitigation - Internals?
Hi all, I understand how the speculative information flow attack works. I'm trying get my head around the spectre v1 mitigation of LLVM. In the design document here : https://llvm.org/docs/SpeculativeLoadHardening.html#speculative-load-hardening. <https://llvm.org/docs/SpeculativeLoadHardening.html#speculative-load-hardening> Example: void leak(int data);void example(int* pointer1, int* pointer2) { if (condition) leak(*pointer1); else leak(*pointer2);} After the applying the mitigatio...
2019 Sep 17
2
Spectre V1 Mitigation - Internals?
...< > llvm-dev at lists.llvm.org> wrote: > >> Hi all, >> >> I understand how the speculative information flow attack works. I'm >> trying get my head around the spectre v1 mitigation of LLVM. >> In the design document here : >> https://llvm.org/docs/SpeculativeLoadHardening.html#speculative-load-hardening. >> <https://llvm.org/docs/SpeculativeLoadHardening.html#speculative-load-hardening> >> >> Example: >> >> void leak(int data);void example(int* pointer1, int* pointer2) { >> if (condition) >> leak(*pointer1); &...
2019 Sep 17
2
Spectre V1 Mitigation - Internals?
...> >>>> Hi all, >>>> >>>> I understand how the speculative information flow attack works. I'm >>>> trying get my head around the spectre v1 mitigation of LLVM. >>>> In the design document here : >>>> https://llvm.org/docs/SpeculativeLoadHardening.html#speculative-load-hardening. >>>> <https://llvm.org/docs/SpeculativeLoadHardening.html#speculative-load-hardening> >>>> >>>> Example: >>>> >>>> void leak(int data);void example(int* pointer1, int* pointer2) { >>>>...
2020 Apr 23
3
[cfe-dev] More verbose -mspeculative-load-hardening
...ooked into using the LLVM_DEBUG macro? You can use it to print > where you want from the SLH pass. > Check it out here: > https://llvm.org/docs/ProgrammersManual.html#the-llvm-debug-macro-and-debug-option You'll > have to add it where you want to see what SLH is doing in the > X86SpeculativeLoadHardening.cpp file and rebuild from source to get the new > error messages. > > Another useful thing for you might be to pass either of these to clang > when you enable -mspeculative-load-hardening > > - -mllvm -print-after-all > - -mllvm -print-after="x86-slh" > &g...
2020 Apr 22
3
[cfe-dev] More verbose -mspeculative-load-hardening
Hi I think llvm-dev list (CC'ed) have more visibility in this. On Wed, 22 Apr 2020 at 22:18, milsegv via cfe-dev <cfe-dev at lists.llvm.org> wrote: > Hello everyone, > > It may not be the best place to ask this but I found nothing on the > internet about it. > I'm working on Spectre V1 detection and stumbled upon the mitigation > provided by clang, the