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author | Andreas Sandberg <Andreas.Sandberg@ARM.com> | 2015-03-02 04:00:27 -0500 |
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committer | Andreas Sandberg <Andreas.Sandberg@ARM.com> | 2015-03-02 04:00:27 -0500 |
commit | 34dcd90b61b6fcde7f4ff1cd717f71edca40f9b9 (patch) | |
tree | a94eaca5591e9f6027e6d279b2ee004d098d38e9 /src/arch/arm/remote_gdb.hh | |
parent | 670f44e05eb8eb1a56b36c4390cf83807a28d823 (diff) | |
download | gem5-34dcd90b61b6fcde7f4ff1cd717f71edca40f9b9.tar.xz |
arm: Fix broken page table permissions checks in remote GDB
The remote GDB interface currently doesn't check if translations are
valid before reading memory. This causes a panic when GDB tries to
access unmapped memory (e.g., when getting a stack trace). There are
two reasons for this: 1) The function used to check for valid
translations (virtvalid()) doesn't work and panics on invalid
translations. 2) The method in the GDB interface used to test if a
translation is valid (RemoteGDB::acc) always returns true regardless
of the return from virtvalid().
This changeset fixes both of these issues.
Diffstat (limited to 'src/arch/arm/remote_gdb.hh')
0 files changed, 0 insertions, 0 deletions