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| author | Luis Machado <luis.machado@linaro.org> | 2020-06-15 13:59:40 -0300 |
|---|---|---|
| committer | Luis Machado <luis.machado@linaro.org> | 2021-03-24 14:52:57 -0300 |
| commit | 5e984dbf3523ea86e3ef3750d6ecaeed74d87c87 (patch) | |
| tree | f6415f72ff6a9c4aae4905a2ad94b70e48b201eb /gdb/arch | |
| parent | c1bd443b4d86e12f2a97856270e40df24c7f3df7 (diff) | |
| download | binutils-gdb-5e984dbf3523ea86e3ef3750d6ecaeed74d87c87.tar.gz | |
AArch64: Add MTE register set support for GDB and gdbserver
AArch64 MTE support in the Linux kernel exposes a new register
through ptrace. This patch adds the required code to support it.
include/ChangeLog:
2021-03-24 Luis Machado <luis.machado@linaro.org>
* elf/common.h (NT_ARM_TAGGED_ADDR_CTRL): Define.
gdb/ChangeLog:
2021-03-24 Luis Machado <luis.machado@linaro.org>
* aarch64-linux-nat.c (fetch_mteregs_from_thread): New function.
(store_mteregs_to_thread): New function.
(aarch64_linux_nat_target::fetch_registers): Update to call
fetch_mteregs_from_thread.
(aarch64_linux_nat_target::store_registers): Update to call
store_mteregs_to_thread.
* aarch64-tdep.c (aarch64_mte_register_names): New struct.
(aarch64_cannot_store_register): Handle MTE registers.
(aarch64_gdbarch_init): Initialize and setup MTE registers.
* aarch64-tdep.h (gdbarch_tdep) <mte_reg_base>: New field.
<has_mte>: New method.
* arch/aarch64-linux.h (AARCH64_LINUX_SIZEOF_MTE): Define.
gdbserver/ChangeLog:
2021-03-24 Luis Machado <luis.machado@linaro.org>
* linux-aarch64-low.cc (aarch64_fill_mteregset): New function.
(aarch64_store_mteregset): New function.
(aarch64_regsets): Add MTE register set entry.
(aarch64_sve_regsets): Add MTE register set entry.
Diffstat (limited to 'gdb/arch')
| -rw-r--r-- | gdb/arch/aarch64-mte-linux.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gdb/arch/aarch64-mte-linux.h b/gdb/arch/aarch64-mte-linux.h index 629ed9cb275..7c259b8a4a4 100644 --- a/gdb/arch/aarch64-mte-linux.h +++ b/gdb/arch/aarch64-mte-linux.h @@ -25,4 +25,7 @@ #define HWCAP2_MTE (1 << 18) #endif +/* The MTE regset consists of a single 64-bit register. */ +#define AARCH64_LINUX_SIZEOF_MTE 8 + #endif /* ARCH_AARCH64_LINUX_H */ |