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plugins: expand kernel-doc for instruction query and instrumentation

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Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210312172821.31647-12-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2021-03-12 17:28:18 +00:00
parent 8bc9a4d46d
commit 8affbacb06
1 changed files with 51 additions and 2 deletions
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53
include/qemu/qemu-plugin.h
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@ -327,21 +327,70 @@ void qemu_plugin_register_vcpu_insn_exec_inline(struct qemu_plugin_insn *insn,
enum qemu_plugin_op op,
void *ptr, uint64_t imm);
/*
* Helpers to query information about the instructions in a block
/**
* qemu_plugin_tb_n_insns() - query helper for number of insns in TB
* @tb: opaque handle to TB passed to callback
*
* Returns: number of instructions in this block
*/
size_t qemu_plugin_tb_n_insns(const struct qemu_plugin_tb *tb);
/**
* qemu_plugin_tb_vaddr() - query helper for vaddr of TB start
* @tb: opaque handle to TB passed to callback
*
* Returns: virtual address of block start
*/
uint64_t qemu_plugin_tb_vaddr(const struct qemu_plugin_tb *tb);
/**
* qemu_plugin_tb_get_insn() - retrieve handle for instruction
* @tb: opaque handle to TB passed to callback
* @idx: instruction number, 0 indexed
*
* The returned handle can be used in follow up helper queries as well
* as when instrumenting an instruction. It is only valid for the
* lifetime of the callback.
*
* Returns: opaque handle to instruction
*/
struct qemu_plugin_insn *
qemu_plugin_tb_get_insn(const struct qemu_plugin_tb *tb, size_t idx);
/**
* qemu_plugin_insn_data() - return ptr to instruction data
* @insn: opaque instruction handle from qemu_plugin_tb_get_insn()
*
* Note: data is only valid for duration of callback. See
* qemu_plugin_insn_size() to calculate size of stream.
*
* Returns: pointer to a stream of bytes containing the value of this
* instructions opcode.
*/
const void *qemu_plugin_insn_data(const struct qemu_plugin_insn *insn);
/**
* qemu_plugin_insn_size() - return size of instruction
* @insn: opaque instruction handle from qemu_plugin_tb_get_insn()
*
* Returns: size of instruction in bytes
*/
size_t qemu_plugin_insn_size(const struct qemu_plugin_insn *insn);
/**
* qemu_plugin_insn_vaddr() - return vaddr of instruction
* @insn: opaque instruction handle from qemu_plugin_tb_get_insn()
*
* Returns: virtual address of instruction
*/
uint64_t qemu_plugin_insn_vaddr(const struct qemu_plugin_insn *insn);
/**
* qemu_plugin_insn_haddr() - return hardware addr of instruction
* @insn: opaque instruction handle from qemu_plugin_tb_get_insn()
*
* Returns: hardware (physical) target address of instruction
*/
void *qemu_plugin_insn_haddr(const struct qemu_plugin_insn *insn);
/*