qemu/gdb-xml, branch master

Hexagon: lldb read/write predicate registers p0/p1/p2/p3

2024-08-08T03:34:41Z

hexagon-core.xml only exposes register p3_0 which is an alias that aggregates the predicate registers. It is more convenient for users to interact directly with the predicate registers. Tested with lldb downloaded from this location https://github.com/llvm/llvm-project/releases/download/llvmorg-18.1.4/clang+llvm-18.1.4-x86_64-linux-gnu-ubuntu-18.04.tar.xz BEFORE: (lldb) reg read p3_0 p3_0 = 0x00000000 (lldb) reg read p0 error: Invalid register name 'p0'. (lldb) reg write p1 0xf error: Register not found for 'p1'. AFTER: (lldb) reg read p3_0 p3_0 = 0x00000000 (lldb) reg read p0 p0 = 0x00 (lldb) reg read -s 1 Predicate Registers: p0 = 0x00 p1 = 0x00 p2 = 0x00 p3 = 0x00 (lldb) reg write p1 0xf (lldb) reg read p3_0 p3_0 = 0x00000f00 (lldb) reg write p3_0 0xff00ff00 (lldb) reg read -s 1 Predicate Registers: p0 = 0x00 p1 = 0xff p2 = 0x00 p3 = 0xff Signed-off-by: Taylor Simpson Reviewed-by: Brian Cain Reviewed-by: Matheus Tavares Bernardino Message-Id: <20240613182209.140082-1-ltaylorsimpson@gmail.com> Signed-off-by: Brian Cain

target/loongarch/gdbstub: Add vector registers support

2024-07-19T02:40:04Z

GDB already support LoongArch vector extension[1], QEMU gdb adds LoongArch vector registers support, so that users can use 'info all-registers' to get all vector registers values. [1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e Signed-off-by: Song Gao Reviewed-by: Philippe Mathieu-Daudé Reviewd-by: Bibo Mao Message-Id: <20240711024454.3075183-1-gaosong@loongson.cn>

gdbstub: Add support for MTE in user mode

2024-07-05T11:35:33Z

This commit implements the stubs to handle the qIsAddressTagged, qMemTag, and QMemTag GDB packets, allowing all GDB 'memory-tag' subcommands to work with QEMU gdbstub on aarch64 user mode. It also implements the get/set functions for the special GDB MTE register 'tag_ctl', used to control the MTE fault type at runtime. Signed-off-by: Gustavo Romero Message-Id: <20240628050850.536447-11-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée Message-Id: <20240705084047.857176-40-alex.bennee@linaro.org>

gdb-xml: fix duplicate register in arm-neon.xml

2023-11-08T15:15:23Z

Reviewed-by: Richard Henderson Fixes: 56aebc8916 ("Add GDB XML register description support") Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Alex Bennée Message-Id: <20231106185112.2755262-3-alex.bennee@linaro.org>

target/loongarch: Split fcc register to fcc0-7 in gdbstub

2023-08-24T03:17:59Z

Since GDB 13.1(GDB commit ea3352172), GDB LoongArch changed to use fcc0-7 instead of fcc register. This commit partially reverts commit 2f149c759 (`target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()`) to match the behavior of GDB. Note that it is a breaking change for GDB 13.0 or earlier, but it is also required for GDB 13.1 or later to work. Signed-off-by: Jiajie Chen Acked-by: Song Gao Message-Id: <20230808054315.3391465-1-c@jia.je> Signed-off-by: Song Gao

target/loongarch: Add GDB support for loongarch32 mode

2023-08-24T03:17:56Z

GPRs and PC are 32-bit wide in loongarch32 mode. Signed-off-by: Jiajie Chen Reviewed-by: Richard Henderson Signed-off-by: Song Gao Message-ID: <20230817093121.1053890-4-gaosong@loongson.cn> [PMD: Rebased, set gdb_num_core_regs] Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20230821125959.28666-9-philmd@linaro.org>

Hexagon (gdbstub): add HVX support

2023-05-18T19:40:52Z

Signed-off-by: Taylor Simpson Co-authored-by: Brian Cain Signed-off-by: Brian Cain Co-authored-by: Matheus Tavares Bernardino Signed-off-by: Matheus Tavares Bernardino Reviewed-by: Brian Cain Message-Id: <17cb32f34d469f705c3cc066a3583935352ee048.1683214375.git.quic_mathbern@quicinc.com>

Hexagon: add core gdbstub xml data for LLDB

2023-05-18T19:40:52Z

Signed-off-by: Matheus Tavares Bernardino Reviewed-by: Taylor Simpson Signed-off-by: Taylor Simpson Message-Id:

s390x/gdb: Split s390-virt.xml

2023-04-28T06:05:37Z

Both TCG and KVM emulate ckc, cputm, last_break and prefix, and it's quite useful to have them during debugging. Right now they are grouped together with KVM-only pp, pfault_token, pfault_select and pfault_compare in s390-virt.xml, and are not available when debugging TCG-emulated code. Move KVM-only registers into the new s390-virt-kvm.xml file. Advertise s390-virt.xml always, and the new s390-virt-kvm.xml only for KVM. Signed-off-by: Ilya Leoshkevich Message-Id: <20230314101813.174874-1-iii@linux.ibm.com> Acked-by: David Hildenbrand Signed-off-by: Thomas Huth

target/arm: Report pauth information to gdb as 'pauth_v2'

2023-04-20T09:21:16Z

So that we can avoid the "older gdb crashes" problem described in commit 5787d17a42f7af4 and which caused us to disable reporting pauth information via the gdbstub, newer gdb is going to implement support for recognizing the pauth information via a new feature name: org.gnu.gdb.aarch64.pauth_v2 Older gdb won't recognize this feature name, so we can re-enable the pauth support under the new name without risking them crashing. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 20230406150827.3322670-1-peter.maydell@linaro.org