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target/arm: Report pauth information to gdb as 'pauth_v2'

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So that we can avoid the "older gdb crashes" problem described in
commit 5787d17a42 and which caused us to disable reporting pauth
information via the gdbstub, newer gdb is going to implement support
for recognizing the pauth information via a new feature name:
 org.gnu.gdb.aarch64.pauth_v2

Older gdb won't recognize this feature name, so we can re-enable the
pauth support under the new name without risking them crashing.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230406150827.3322670-1-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2023-04-20 10:21:16 +01:00
parent 0f40f7cabe
commit 7bdd67a560
2 changed files with 5 additions and 6 deletions
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2
gdb-xml/aarch64-pauth.xml
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@ -6,7 +6,7 @@
notice and this notice are preserved. -->
<!DOCTYPE feature SYSTEM "gdb-target.dtd">
<feature name="org.gnu.gdb.aarch64.pauth">
<feature name="org.gnu.gdb.aarch64.pauth_v2">
<reg name="pauth_dmask" bitsize="64"/>
<reg name="pauth_cmask" bitsize="64"/>
<reg name="pauth_dmask_high" bitsize="64"/>