This series implement two new operations for plugins: - Store inline allows to write a specific value to a scoreboard. - Conditional callback executes a callback only when a given condition is true. The condition is evaluated inline.
It's possible to mix various inline operations (add, store) with conditional callbacks, allowing efficient "trap" based counters. It builds on top of new scoreboard API, introduced in the previous series. NOTE: Two patches still need review v2 -- - fixed issue with udata not being passed to conditional callback - added specific test for this in tests/plugin/inline.c (udata was NULL before). v3 -- - rebased on top of "plugins: Rewrite plugin code generation": 20240316015720.3661236-1-richard.hender...@linaro.org - single pass code generation - small cleanups for code generation v4 -- - remove op field from qemu_plugin_inline_cb - use tcg_constant_i64 to load immediate value to store Pierrick Bouvier (9): plugins: prepare introduction of new inline ops plugins: extract generate ptr for qemu_plugin_u64 plugins: add new inline op STORE_U64 tests/plugin/inline: add test for STORE_U64 inline op plugins: conditional callbacks tests/plugin/inline: add test for conditional callback plugins: distinct types for callbacks plugins: extract cpu_index generate plugins: remove op from qemu_plugin_inline_cb include/qemu/plugin.h | 42 +++++++---- include/qemu/qemu-plugin.h | 80 ++++++++++++++++++++- plugins/plugin.h | 12 +++- accel/tcg/plugin-gen.c | 136 +++++++++++++++++++++++++++-------- plugins/api.c | 39 ++++++++++ plugins/core.c | 109 ++++++++++++++++++++-------- tests/plugin/inline.c | 130 +++++++++++++++++++++++++++++++-- plugins/qemu-plugins.symbols | 2 + 8 files changed, 466 insertions(+), 84 deletions(-) -- 2.39.2
