diff options
Diffstat (limited to 'libjava/jvmti.cc')
| -rw-r--r-- | libjava/jvmti.cc | 74 |
1 files changed, 72 insertions, 2 deletions
diff --git a/libjava/jvmti.cc b/libjava/jvmti.cc index c1bdc78..5569551 100644 --- a/libjava/jvmti.cc +++ b/libjava/jvmti.cc @@ -14,6 +14,7 @@ details. */ #include <jvm.h> #include <java-threads.h> #include <java-gc.h> +#include <java-interp.h> #include <jvmti.h> #include "jvmti-int.h" @@ -21,6 +22,9 @@ details. */ #include <gnu/classpath/SystemProperties.h> #include <gnu/gcj/runtime/BootClassLoader.h> +#include <gnu/gcj/jvmti/Breakpoint.h> +#include <gnu/gcj/jvmti/BreakpointManager.h> + #include <java/lang/Class.h> #include <java/lang/ClassLoader.h> #include <java/lang/Object.h> @@ -280,6 +284,72 @@ _Jv_JVMTI_RawMonitorNotifyAll (MAYBE_UNUSED jvmtiEnv *env, } static jvmtiError JNICALL +_Jv_JVMTI_SetBreakpoint (jvmtiEnv *env, jmethodID method, jlocation location) +{ + REQUIRE_PHASE (env, JVMTI_PHASE_LIVE); + + using namespace gnu::gcj::jvmti; + Breakpoint *bp + = BreakpointManager::getBreakpoint (reinterpret_cast<jlong> (method), + location); + if (bp == NULL) + { + jclass klass; + jvmtiError err = env->GetMethodDeclaringClass (method, &klass); + if (err != JVMTI_ERROR_NONE) + return err; + + if (!_Jv_IsInterpretedClass (klass)) + return JVMTI_ERROR_INVALID_CLASS; + + _Jv_MethodBase *base = _Jv_FindInterpreterMethod (klass, method); + if (base == NULL) + return JVMTI_ERROR_INVALID_METHODID; + + jint flags; + err = env->GetMethodModifiers (method, &flags); + if (err != JVMTI_ERROR_NONE) + return err; + + if (flags & java::lang::reflect::Modifier::NATIVE) + return JVMTI_ERROR_NATIVE_METHOD; + + _Jv_InterpMethod *imeth = reinterpret_cast<_Jv_InterpMethod *> (base); + if (imeth->get_insn (location) == NULL) + return JVMTI_ERROR_INVALID_LOCATION; + + // Now the breakpoint can be safely installed + bp = BreakpointManager::newBreakpoint (reinterpret_cast<jlong> (method), + location); + } + else + { + // Duplicate breakpoints are not permitted by JVMTI + return JVMTI_ERROR_DUPLICATE; + } + + return JVMTI_ERROR_NONE; +} + +static jvmtiError JNICALL +_Jv_JVMTI_ClearBreakpoint (MAYBE_UNUSED jvmtiEnv *env, jmethodID method, + jlocation location) +{ + REQUIRE_PHASE (env, JVMTI_PHASE_LIVE); + + using namespace gnu::gcj::jvmti; + + Breakpoint *bp + = BreakpointManager::getBreakpoint (reinterpret_cast<jlong> (method), + location); + if (bp == NULL) + return JVMTI_ERROR_NOT_FOUND; + + BreakpointManager::deleteBreakpoint (reinterpret_cast<jlong> (method), location); + return JVMTI_ERROR_NONE; +} + +static jvmtiError JNICALL _Jv_JVMTI_Allocate (MAYBE_UNUSED jvmtiEnv *env, jlong size, unsigned char **result) { @@ -1278,8 +1348,8 @@ struct _Jv_jvmtiEnv _Jv_JVMTI_Interface = _Jv_JVMTI_RawMonitorWait, // RawMonitorWait _Jv_JVMTI_RawMonitorNotify, // RawMonitorNotify _Jv_JVMTI_RawMonitorNotifyAll, // RawMonitorNotifyAll - UNIMPLEMENTED, // SetBreakpoint - UNIMPLEMENTED, // ClearBreakpoint + _Jv_JVMTI_SetBreakpoint, // SetBreakpoint + _Jv_JVMTI_ClearBreakpoint, // ClearBreakpoint RESERVED, // reserved40 UNIMPLEMENTED, // SetFieldAccessWatch UNIMPLEMENTED, // ClearFieldAccessWatch |