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plugins: Add register write API

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This patch adds a function to the plugins API to allow plugins to write
register contents. It also moves the qemu_plugin_read_register function
so all the register-related functions are grouped together in the file.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-3-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-7-alex.bennee@linaro.org>
This commit is contained in:
Rowan Hart 2025-06-27 12:25:02 +01:00 • committed by Alex Bennée
parent 1bb6403a34
commit 1a92b65859
2 changed files with 56 additions and 24 deletions
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26
plugins/api.c
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@ -433,6 +433,25 @@ GArray *qemu_plugin_get_registers(void)
return create_register_handles(regs);
}
int qemu_plugin_read_register(struct qemu_plugin_register *reg, GByteArray *buf)
{
g_assert(current_cpu);
return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg) - 1);
}
int qemu_plugin_write_register(struct qemu_plugin_register *reg,
GByteArray *buf)
{
g_assert(current_cpu);
if (buf->len == 0 || qemu_plugin_get_cb_flags() != QEMU_PLUGIN_CB_RW_REGS) {
return -1;
}
return gdb_write_register(current_cpu, buf->data, GPOINTER_TO_INT(reg) - 1);
}
bool qemu_plugin_read_memory_vaddr(uint64_t addr, GByteArray *data, size_t len)
{
g_assert(current_cpu);
@ -453,13 +472,6 @@ bool qemu_plugin_read_memory_vaddr(uint64_t addr, GByteArray *data, size_t len)
return true;
}
int qemu_plugin_read_register(struct qemu_plugin_register *reg, GByteArray *buf)
{
g_assert(current_cpu);
return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg) - 1);
}
struct qemu_plugin_scoreboard *qemu_plugin_scoreboard_new(size_t element_size)
{
return plugin_scoreboard_new(element_size);