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gdbstub: Allow gdb_core_xml_file to be set at runtime

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Currently the CPUClass:gdb_core_xml_file setting is a simple 'const
char *' which the CPU class must set to a fixed string.  Allow the
CPU class to instead set a new method gdb_get_core_xml_file() which
returns this string.

This will allow Arm CPUs to use different XML files for AArch32 vs
AArch64 without having to have an extra AArch64-specific class type
purely to give somewhere to set cc->gdb_core_xml_file differently.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250317142819.900029-3-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Peter Maydell 2025-03-17 14:28:12 +00:00 • committed by Philippe Mathieu-Daudé
parent 56a9f0d4c4
commit a1f728ecc9
2 changed files with 24 additions and 4 deletions
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5
include/hw/core/cpu.h
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@ -131,6 +131,10 @@ struct SysemuCPUOps;
* @gdb_num_core_regs: Number of core registers accessible to GDB or 0 to infer
* from @gdb_core_xml_file.
* @gdb_core_xml_file: File name for core registers GDB XML description.
* @gdb_get_core_xml_file: Optional callback that returns the file name for
* the core registers GDB XML description. The returned value is expected to
* be a simple constant string: the caller will not g_free() it. If this
* is NULL then @gdb_core_xml_file will be used instead.
* @gdb_stop_before_watchpoint: Indicates whether GDB expects the CPU to stop
* before the insn which triggers a watchpoint rather than after it.
* @gdb_arch_name: Optional callback that returns the architecture name known
@ -166,6 +170,7 @@ struct CPUClass {
const char *gdb_core_xml_file;
const gchar * (*gdb_arch_name)(CPUState *cpu);
const char * (*gdb_get_core_xml_file)(CPUState *cpu);
void (*disas_set_info)(CPUState *cpu, disassemble_info *info);