diff options
| author | Luis Machado <luis.machado@linaro.org> | 2020-06-15 13:52:27 -0300 |
|---|---|---|
| committer | Luis Machado <luis.machado@linaro.org> | 2021-03-24 14:52:08 -0300 |
| commit | c1bd443b4d86e12f2a97856270e40df24c7f3df7 (patch) | |
| tree | 9aae2ce3110607d8710532a75ff12c529f1cd78d /gdbserver/linux-aarch64-ipa.cc | |
| parent | 0424512519142571509c67e83cd9dc2ed51d2dec (diff) | |
AArch64: Add target description/feature for MTE registers
This patch adds a target description and feature "mte" for aarch64.
It includes one new register, tag_ctl, that can be used to configure the
tag generation rules and sync/async modes. It is 64-bit in size.
The patch also adjusts the code that creates the target descriptions at
runtime based on CPU feature checks.
gdb/ChangeLog:
2021-03-24 Luis Machado <luis.machado@linaro.org>
* aarch64-linux-nat.c
(aarch64_linux_nat_target::read_description): Take MTE flag into
account.
Slight refactor to hwcap flag checking.
* aarch64-linux-tdep.c
(aarch64_linux_core_read_description): Likewise.
* aarch64-tdep.c (tdesc_aarch64_list): Add one more dimension for
MTE.
(aarch64_read_description): Add mte_p parameter and update to use it.
Update the documentation.
(aarch64_gdbarch_init): Update call to aarch64_read_description.
* aarch64-tdep.h (aarch64_read_description): Add mte_p parameter.
* arch/aarch64.c: Include ../features/aarch64-mte.c.
(aarch64_create_target_description): Add mte_p parameter and update
the code to use it.
* arch/aarch64.h (aarch64_create_target_description): Add mte_p
parameter.
* features/Makefile (FEATURE_XMLFILES): Add aarch64-mte.xml.
* features/aarch64-mte.c: New file, generated.
* features/aarch64-mte.xml: New file.
gdbserver/ChangeLog:
2021-03-24 Luis Machado <luis.machado@linaro.org>
* linux-aarch64-ipa.cc (get_ipa_tdesc): Update call to
aarch64_linux_read_description.
(initialize_low_tracepoint): Likewise.
* linux-aarch64-low.cc (aarch64_target::low_arch_setup): Take MTE flag
into account.
* linux-aarch64-tdesc.cc (tdesc_aarch64_list): Add one more dimension
for MTE.
(aarch64_linux_read_description): Add mte_p parameter and update to
use it.
* linux-aarch64-tdesc.h (aarch64_linux_read_description): Add mte_p
parameter.
Diffstat (limited to 'gdbserver/linux-aarch64-ipa.cc')
| -rw-r--r-- | gdbserver/linux-aarch64-ipa.cc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gdbserver/linux-aarch64-ipa.cc b/gdbserver/linux-aarch64-ipa.cc index 24211df5586..ebf017ed114 100644 --- a/gdbserver/linux-aarch64-ipa.cc +++ b/gdbserver/linux-aarch64-ipa.cc @@ -147,12 +147,12 @@ get_raw_reg (const unsigned char *raw_regs, int regnum) /* Return target_desc to use for IPA, given the tdesc index passed by gdbserver. Index is ignored, since we have only one tdesc - at the moment. SVE and pauth not yet supported. */ + at the moment. SVE, pauth and MTE not yet supported. */ const struct target_desc * get_ipa_tdesc (int idx) { - return aarch64_linux_read_description (0, false); + return aarch64_linux_read_description (0, false, false); } /* Allocate buffer for the jump pads. The branch instruction has a reach @@ -204,6 +204,6 @@ alloc_jump_pad_buffer (size_t size) void initialize_low_tracepoint (void) { - /* SVE and pauth not yet supported. */ - aarch64_linux_read_description (0, false); + /* SVE, pauth and MTE not yet supported. */ + aarch64_linux_read_description (0, false, false); } |