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8165736: Error message should be shown when JVMTI agent cannot be attached

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Reviewed-by: sspitsyn, dholmes
This commit is contained in:
Yasumasa Suenaga 2017-11-29 09:26:58 +09:00
parent bd0fdc5c21
commit b25c9ddbae
10 changed files with 274 additions and 11 deletions
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11
src/hotspot/share/prims/jvmtiExport.cpp
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@ -2578,7 +2578,7 @@ extern "C" {
jint JvmtiExport::load_agent_library(const char *agent, const char *absParam,
const char *options, outputStream* st) {
char ebuf[1024];
char ebuf[1024] = {0};
char buffer[JVM_MAXPATHLEN];
void* library = NULL;
jint result = JNI_ERR;
@ -2628,6 +2628,8 @@ jint JvmtiExport::load_agent_library(const char *agent, const char *absParam,
if (!agent_lib->is_static_lib()) {
os::dll_unload(library);
}
st->print_cr("%s is not available in %s",
on_attach_symbols[0], agent_lib->name());
delete agent_lib;
} else {
// Invoke the Agent_OnAttach function
@ -2654,9 +2656,14 @@ jint JvmtiExport::load_agent_library(const char *agent, const char *absParam,
}
// Agent_OnAttach executed so completion status is JNI_OK
st->print_cr("%d", result);
st->print_cr("return code: %d", result);
result = JNI_OK;
}
} else {
st->print_cr("%s was not loaded.", agent);
if (*ebuf != '\0') {
st->print_cr("%s", ebuf);
}
}
return result;
}