[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v3 2/3] This patch adds helper functions to the drcov plugin.
From: |
NDNF |
Subject: |
[PATCH v3 2/3] This patch adds helper functions to the drcov plugin. |
Date: |
Fri, 22 Oct 2021 19:07:14 +0300 |
User-agent: |
StGit/0.19 |
Which provide information about:
- start_code.
- end_code.
- entry.
- path to the executable binary.
Signed-off-by: Ivanov Arkady <arkadiy.ivanov@ispras.ru>
---
include/qemu/qemu-plugin.h | 17 ++++++++++++++++
plugins/api.c | 44 ++++++++++++++++++++++++++++++++++++++++++
plugins/qemu-plugins.symbols | 4 ++++
3 files changed, 65 insertions(+)
diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h
index 5775e82c4e..68af67acf2 100644
--- a/include/qemu/qemu-plugin.h
+++ b/include/qemu/qemu-plugin.h
@@ -405,4 +405,21 @@ int qemu_plugin_n_max_vcpus(void);
*/
void qemu_plugin_outs(const char *string);
+/**
+ * qemu_plugin_path_to_binary() - returns path to binary file being executed
+ */
+QEMU_PLUGIN_EXPORT const char *qemu_plugin_path_to_binary(void);
+/**
+ * qemu_plugin_start_code() - returns start of text segment
+ */
+QEMU_PLUGIN_EXPORT uint64_t qemu_plugin_start_code(void);
+/**
+ * qemu_plugin_end_code() - returns end of text segment
+ */
+QEMU_PLUGIN_EXPORT uint64_t qemu_plugin_end_code(void);
+/**
+ * qemu_plugin_entry_code() - returns start address for module
+ */
+QEMU_PLUGIN_EXPORT uint64_t qemu_plugin_entry_code(void);
+
#endif /* QEMU_PLUGIN_API_H */
diff --git a/plugins/api.c b/plugins/api.c
index bbdc5a4eb4..064eebacd1 100644
--- a/plugins/api.c
+++ b/plugins/api.c
@@ -48,6 +48,10 @@
#endif
#include "trace/mem.h"
+#ifdef CONFIG_USER_ONLY
+#include "qemu.h"
+#endif
+
/* Uninstall and Reset handlers */
void qemu_plugin_uninstall(qemu_plugin_id_t id, qemu_plugin_simple_cb_t cb)
@@ -340,3 +344,43 @@ void qemu_plugin_outs(const char *string)
{
qemu_log_mask(CPU_LOG_PLUGIN, "%s", string);
}
+
+const char *qemu_plugin_path_to_binary(void)
+{
+#ifdef CONFIG_USER_ONLY
+ TaskState *ts = (TaskState *) current_cpu->opaque;
+ return ts->bprm->filename;
+#else
+ return "path";
+#endif
+}
+
+uint64_t qemu_plugin_start_code(void)
+{
+#ifdef CONFIG_USER_ONLY
+ TaskState *ts = (TaskState *) current_cpu->opaque;
+ return ts->info->start_code;
+#else
+ return 0;
+#endif
+}
+
+uint64_t qemu_plugin_end_code(void)
+{
+#ifdef CONFIG_USER_ONLY
+ TaskState *ts = (TaskState *) current_cpu->opaque;
+ return ts->info->end_code;
+#else
+ return 0xFFFFFFFF;
+#endif
+}
+
+uint64_t qemu_plugin_entry_code(void)
+{
+#ifdef CONFIG_USER_ONLY
+ TaskState *ts = (TaskState *) current_cpu->opaque;
+ return ts->info->entry;
+#else
+ return 0;
+#endif
+}
diff --git a/plugins/qemu-plugins.symbols b/plugins/qemu-plugins.symbols
index 688db92773..d956888f67 100644
--- a/plugins/qemu-plugins.symbols
+++ b/plugins/qemu-plugins.symbols
@@ -1,4 +1,6 @@
{
+ qemu_plugin_end_code;
+ qemu_plugin_entry_code;
qemu_plugin_get_hwaddr;
qemu_plugin_hwaddr_is_io;
qemu_plugin_hwaddr_to_raddr;
@@ -14,6 +16,7 @@
qemu_plugin_n_max_vcpus;
qemu_plugin_n_vcpus;
qemu_plugin_outs;
+ qemu_plugin_path_to_binary;
qemu_plugin_ram_addr_from_host;
qemu_plugin_register_atexit_cb;
qemu_plugin_register_flush_cb;
@@ -32,6 +35,7 @@
qemu_plugin_register_vcpu_tb_exec_inline;
qemu_plugin_register_vcpu_tb_trans_cb;
qemu_plugin_reset;
+ qemu_plugin_start_code;
qemu_plugin_tb_get_insn;
qemu_plugin_tb_n_insns;
qemu_plugin_tb_vaddr;