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No longer run atExit functions from run()

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rename run to runFunction
Genericize the runFunction code a little bit, though it still stinks


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10610 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-12-26 06:13:47 +00:00
parent 2cab55d7e1
commit ff0f1bb32a
3 changed files with 26 additions and 22 deletions
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4
lib/ExecutionEngine/JIT/Intercept.cpp
View File

@ -28,7 +28,7 @@ static std::vector<void (*)()> AtExitHandlers;
/// calls to atexit(3), which we intercept and store in
/// AtExitHandlers.
///
void JIT::runAtExitHandlers() {
static void runAtExitHandlers() {
while (!AtExitHandlers.empty()) {
void (*Fn)() = AtExitHandlers.back();
AtExitHandlers.pop_back();
@ -45,7 +45,7 @@ static void NoopFn() {}
// jit_exit - Used to intercept the "exit" library call.
static void jit_exit(int Status) {
JIT::runAtExitHandlers(); // Run atexit handlers...
runAtExitHandlers(); // Run atexit handlers...
exit(Status);
}

35
lib/ExecutionEngine/JIT/JIT.cpp
View File

@ -51,22 +51,31 @@ JIT::~JIT() {
/// run - Start execution with the specified function and arguments.
///
GenericValue JIT::run(Function *F, const std::vector<GenericValue> &ArgValues) {
GenericValue JIT::runFunction(Function *F,
const std::vector<GenericValue> &ArgValues) {
assert (F && "Function *F was null at entry to run()");
GenericValue rv;
int (*PF)(int, char **, const char **) =
(int(*)(int, char **, const char **))getPointerToFunction(F);
assert(PF != 0 && "Pointer to fn's code was null after getPointerToFunction");
if (ArgValues.size() == 3) {
int (*PF)(int, char **, const char **) =
(int(*)(int, char **, const char **))getPointerToFunction(F);
assert(PF && "Pointer to fn's code was null after getPointerToFunction");
// Call the function.
int ExitCode = PF(ArgValues[0].IntVal, (char **) GVTOP (ArgValues[1]),
(const char **) GVTOP (ArgValues[2]));
rv.IntVal = ExitCode;
} else {
// FIXME: This code should handle a couple of common cases efficiently, but
// it should also implement the general case by code-gening a new anonymous
// nullary function to call.
assert(ArgValues.size() == 1);
void (*PF)(int) = (void(*)(int))getPointerToFunction(F);
assert(PF && "Pointer to fn's code was null after getPointerToFunction");
PF(ArgValues[0].IntVal);
}
// Call the function.
int ExitCode = PF(ArgValues[0].IntVal, (char **) GVTOP (ArgValues[1]),
(const char **) GVTOP (ArgValues[2]));
// Run any atexit handlers now!
runAtExitHandlers();
GenericValue rv;
rv.IntVal = ExitCode;
return rv;
}

9
lib/ExecutionEngine/JIT/JIT.h
View File

@ -50,8 +50,8 @@ public:
/// run - Start execution with the specified function and arguments.
///
virtual GenericValue run(Function *F,
const std::vector<GenericValue> &ArgValues);
virtual GenericValue runFunction(Function *F,
const std::vector<GenericValue> &ArgValues);
/// getPointerToNamedFunction - This method returns the address of the
/// specified function by using the dlsym function call. As such it is only
@ -64,11 +64,6 @@ public:
//
static void CompilationCallback();
/// runAtExitHandlers - Before exiting the program, at_exit functions must be
/// called. This method calls them.
///
static void runAtExitHandlers();
/// getPointerToFunction - This returns the address of the specified function,
/// compiling it if necessary.
///