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| author | Alan Hayward <alan.hayward@arm.com> | 2019-03-22 09:58:42 +0000 |
|---|---|---|
| committer | Alan Hayward <alan.hayward@arm.com> | 2019-03-22 09:58:42 +0000 |
| commit | 6dc0ebde59dfb73eae507ced718bafa54023bf33 (patch) | |
| tree | 9cc851b66b4b94d633e576f1b955edfe9b63d81c /gdb/doc | |
| parent | 968aa7ae389d9e6cecb5fda6826bf889ed959fce (diff) | |
| download | gdb-6dc0ebde59dfb73eae507ced718bafa54023bf33.zip gdb-6dc0ebde59dfb73eae507ced718bafa54023bf33.tar.gz gdb-6dc0ebde59dfb73eae507ced718bafa54023bf33.tar.bz2 | |
AArch64: Add pointer authentication feature
Pointer Authentication is a new feature in AArch64 v8.3-a. When enabled in
the compiler, function return addresses will be mangled by the kernel.
Add register description xml and wire up to aarch64_linux_read_description.
This description includes the two pauth user registers.
Nothing yet uses the feature - that is added in later patches.
gdb/ChangeLog:
* aarch64-linux-nat.c
(aarch64_linux_nat_target::read_description): Add pauth param.
* aarch64-linux-tdep.c
(aarch64_linux_core_read_description): Likewise.
* aarch64-tdep.c (struct target_desc): Add in pauth.
(aarch64_read_description): Add pauth param.
(aarch64_gdbarch_init): Likewise.
* aarch64-tdep.h (aarch64_read_description): Likewise.
* arch/aarch64.c (aarch64_create_target_description): Likewise.
* arch/aarch64.h (aarch64_create_target_description): Likewise.
* features/Makefile: Add new files.
* features/aarch64-pauth.c: New file.
* features/aarch64-pauth.xml: New file.
gdb/doc/ChangeLog:
* gdb.texinfo: Describe pauth feature.
gdb/gdbserver/ChangeLog:
* linux-aarch64-ipa.c (get_ipa_tdesc): Add pauth param.
(initialize_low_tracepoint): Likewise.
* linux-aarch64-low.c (aarch64_arch_setup): Likewise.
* linux-aarch64-tdesc-selftest.c (aarch64_tdesc_test): Likewise.
* linux-aarch64-tdesc.c (struct target_desc): Likewise.
(aarch64_linux_read_description): Likewise.
* linux-aarch64-tdesc.h (aarch64_linux_read_description): Likewise.
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 447d74e..1f41498 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,8 @@ +2019-03-22 Alan Hayward <alan.hayward@arm.com> + Jiong Wang <jiong.wang@arm.com> + + * gdb.texinfo (AArch64 Features): Describe pauth feature. + 2019-03-20 Tom Tromey <tromey@adacore.com> * python.texi (Selecting Pretty-Printers): Use @defvar for diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 271739b..4c1d5e8 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -43162,6 +43162,9 @@ The @samp{org.gnu.gdb.aarch64.sve} feature is optional. If present, it should contain registers @samp{z0} through @samp{z31}, @samp{p0} through @samp{p15}, @samp{ffr} and @samp{vg}. +The @samp{org.gnu.gdb.aarch64.pauth} feature is optional. If present, +it should contain registers @samp{pauth_dmask} and @samp{pauth_cmask}. + @node ARC Features @subsection ARC Features @cindex target descriptions, ARC Features |