Is there a callable C++ function that can turn a compressed pointer into the actual pointer value?
Daniel On Thu, 22 Sept 2022 at 08:43, Anton Bikineev <[email protected]> wrote: > We have plans to provide more debugging tooling for Oilpan. I haven't had > a need to examine compressed pointers myself, however I see that some > simple gdb/windbg function that'd follow pointers would be useful. > > On Thu, Sep 22, 2022 at 1:14 AM Kentaro Hara <[email protected]> wrote: > >> +Michael Lippautz <[email protected]> >> >> 2022年9月22日(木) 4:01 'Daniel Libby' via blink-dev <[email protected]>: >> >>> https://crrev.com/c/3835682 enabled pointer compression for Blink >>> Member<> pointers. How are folks handling these while debugging (either >>> live or crash dumps)? Is there some tooling available that will look up and >>> apply the cage base? >>> >>> I didn't see anything mentioned in >>> https://docs.google.com/document/d/1neGN8Jq-1JLrWK3cvwRIfrSjLgE0Srjv-uq7Ze38Iao/edit# >>> but maybe there are better known tools/techniques from v8 (which IIUC has >>> had compressed pointers for some time now). >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "blink-dev" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/4b3e5bbb-134a-4483-9a1e-8e33fbc6f38en%40chromium.org >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/4b3e5bbb-134a-4483-9a1e-8e33fbc6f38en%40chromium.org?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "blink-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABg10jxSdx3JzWvTC2j7RUEcw01P9gTRhT%3DnftwehY3br4qNWA%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABg10jxSdx3JzWvTC2j7RUEcw01P9gTRhT%3DnftwehY3br4qNWA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABH6udYH6VGy8Ooz6ZLZWpWR_LjjQfu1xh-AMBvWoyAnArojbA%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABH6udYH6VGy8Ooz6ZLZWpWR_LjjQfu1xh-AMBvWoyAnArojbA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAF3XrKoBjKzgkpo%2BJf2HVEnPBZpV9Z%2BpXNaB_5yT9tYYo8JYjA%40mail.gmail.com.
