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target/arm: Add the XML dynamic generation

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Generate an XML description for the cp-regs.
Register these regs with the gdb_register_coprocessor().
Add arm_gdb_get_sysreg() to use it as a callback to read those regs.
Add a dummy arm_gdb_set_sysreg().

Signed-off-by: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1524153386-3550-4-git-send-email-abdallah.bouassida@lauterbach.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Abdallah Bouassida 2018-05-18 17:48:07 +01:00 • committed by Peter Maydell
parent 9c513e786d
commit 200bf5b7ff
6 changed files with 143 additions and 1 deletions
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5
include/qom/cpu.h
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@ -132,6 +132,9 @@ struct TranslationBlock;
* before the insn which triggers a watchpoint rather than after it.
* @gdb_arch_name: Optional callback that returns the architecture name known
* to GDB. The caller must free the returned string with g_free.
* @gdb_get_dynamic_xml: Callback to return dynamically generated XML for the
* gdb stub. Returns a pointer to the XML contents for the specified XML file
* or NULL if the CPU doesn't have a dynamically generated content for it.
* @cpu_exec_enter: Callback for cpu_exec preparation.
* @cpu_exec_exit: Callback for cpu_exec cleanup.
* @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec.
@ -198,7 +201,7 @@ typedef struct CPUClass {
const struct VMStateDescription *vmsd;
const char *gdb_core_xml_file;
gchar * (*gdb_arch_name)(CPUState *cpu);
const char * (*gdb_get_dynamic_xml)(CPUState *cpu, const char *xmlname);
void (*cpu_exec_enter)(CPUState *cpu);
void (*cpu_exec_exit)(CPUState *cpu);
bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request);