omjavaid added a comment.
it look good to me but I have some final minor nits inline.
================
Comment at: lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp:1458
+
+ struct iovec tags_vec;
+ uint8_t *dest = &tags[0];
----------------
may be rename to tags_iovec? because reading code below i had the tags vector
in mind and confused it for that vector which was passed as parameter to this
function.
================
Comment at: lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp:1459
+ struct iovec tags_vec;
+ uint8_t *dest = &tags[0];
+ lldb::addr_t read_addr = range.GetRangeBase();
----------------
may be use tags.data() ?
================
Comment at: lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp:1464
+ // get all tags back.
+ while (num_tags > 0) {
+ tags_vec.iov_base = dest;
----------------
this loop condition is is a little fishy. num_tags is unsigned which means if
by chance it doesnt end up going to zero we ll keep looping for ever.
================
Comment at: lldb/test/API/tools/lldb-server/memory-tagging/main.c:53
+ // smoke test in case something didn't account for them.
+ buf = (char *)((size_t)buf | ((size_t)0xAA << 56));
+ return print_result(buf);
----------------
Just a side question about TBI, for memroy reads/write or tags/query is it
necessary to send non address bits to remote? (tags and pauth masks). Can we
instead clear these bits before sending address over using the code/data masks
we have calculated in our host process class.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D95601/new/
https://reviews.llvm.org/D95601
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