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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-08-16 08:18:18 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-08-17 06:19:49 -0700 |
| commit | 4eb629d50d449a079d3f5e22f26f45855939164f (patch) | |
| tree | 93aa176fdbad7be7c07f73e1293bd98245117253 /gdbserver/linux-low.cc | |
| parent | c9fed6655f49320086869e5e73d787971f0268d2 (diff) | |
| download | binutils-gdb-4eb629d50d449a079d3f5e22f26f45855939164f.tar.gz | |
gdbserver: Check r_version < 1 for Linux debugger interface
Update gdbserver to check r_version < 1 instead of r_version != 1 so
that r_version can be bumped for a new field in the glibc debugger
interface to support multiple namespaces. Since so far, the gdbserver
only reads fields defined for r_version == 1, it is compatible with
r_version >= 1.
All future glibc debugger interface changes will be backward compatible.
If there is ever the need for backward incompatible change to the glibc
debugger interface, a new DT_XXX element will be provided to access the
new incompatible interface.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=11839
Diffstat (limited to 'gdbserver/linux-low.cc')
| -rw-r--r-- | gdbserver/linux-low.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc index 5c6191d941c..fc7a995351d 100644 --- a/gdbserver/linux-low.cc +++ b/gdbserver/linux-low.cc @@ -6845,7 +6845,7 @@ linux_process_target::qxfer_libraries_svr4 (const char *annex, if (linux_read_memory (priv->r_debug + lmo->r_version_offset, (unsigned char *) &r_version, sizeof (r_version)) != 0 - || r_version != 1) + || r_version < 1) { warning ("unexpected r_debug version %d", r_version); } |