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| author | Luis Machado <luis.machado@linaro.org> | 2020-06-15 15:54:00 -0300 |
|---|---|---|
| committer | Luis Machado <luis.machado@linaro.org> | 2020-06-25 13:23:39 -0300 |
| commit | a2bdbbe1234c00e53823f609ca06f5148bb1da42 (patch) | |
| tree | 276780fdadc3fb94e623167382293e60b804278e | |
| parent | 8d8848b10477ff0c569ad25fb507d583146a87ca (diff) | |
| download | gdb-a2bdbbe1234c00e53823f609ca06f5148bb1da42.zip gdb-a2bdbbe1234c00e53823f609ca06f5148bb1da42.tar.gz gdb-a2bdbbe1234c00e53823f609ca06f5148bb1da42.tar.bz2 | |
Add NEWS entry.
Mention the new packets and memory tagging features.
gdb/ChangeLog:
YYYY-MM-DD Luis Machado <luis.machado@linaro.org>
* NEWS: Mention memory tagging changes.
| -rw-r--r-- | gdb/NEWS | 32 |
1 files changed, 32 insertions, 0 deletions
@@ -3,6 +3,19 @@ *** Changes since GDB 9 +* GDB now supports general memory tagging functionality if the underlying + architecture supports the proper primitives and hooks. Currently this is + enabled only for AArch64 MTE. + + This includes additional information when the inferior crashes with a + SIGSEGV caused by a memory tag violation. + +* The "x" command supports the 'm' modifier to display allocation tags for + a particular memory range. + +* The "print" command will display memory tag mismatches for addresses and + pointers, if memory tagging is supported by the architecture. + * Help and apropos commands will now show the documentation of a command only once, even if that command has one or more aliases. These commands now show the command name, then all of its aliases, @@ -63,8 +76,27 @@ * On Windows targets, it is now possible to debug 32-bit programs with a 64-bit GDB. +* New remote packets + +qMemTags + Request the remote to send allocation tags for a particular memory range. +QMemTags + Request the remote to store the specified allocation tags to the requested + memory range. + * New commands +mtag showltag ADDRESS + Show the logical tag for ADDRESS. +mtag setltag ADDRESS TAG + Set the logical tag for ADDRESS to TAG. +mtag showatag ADDRESS + Show the allocation tag for ADDRESS. +mtag setatag ADDRESS LENGTH TAGS + Set the allocation tag for [ADDRESS, ADDRESS + LENGTH) to TAGS. +mtag check ADDRESS + Validate that ADDRESS' logical tag matches the allocation tag. + set exec-file-mismatch -- Set exec-file-mismatch handling (ask|warn|off). show exec-file-mismatch -- Show exec-file-mismatch handling (ask|warn|off). Set or show the option 'exec-file-mismatch'. When GDB attaches to a |