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kubamracekkubamracek
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Merge pull request #72817 from kubamracek/embedded-print-on-assert
[embedded] In -assert-config Debug, print errors in assertions, preconditions, fatalErrors
2 parents 7f0a859 + 67f3d34 commit 6e4ccca

15 files changed

+311
-7
lines changed

‎include/swift/SIL/SILFunction.h‎

Lines changed: 14 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1354,6 +1354,20 @@ class SILFunction
13541354
WasmImportModuleAndField = std::make_pair(module, field);
13551355
}
13561356

1357+
bool isExternForwardDeclaration() const {
1358+
if (isExternalDeclaration()) {
1359+
if (auto declContext = getDeclContext()) {
1360+
if (auto decl = declContext->getAsDecl()) {
1361+
if (decl->getAttrs().hasAttribute<ExternAttr>())
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return true;
1363+
if (decl->getAttrs().hasAttribute<SILGenNameAttr>())
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return true;
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}
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}
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}
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return false;
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}
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/// Returns true if this function belongs to a declaration that returns
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/// an opaque result type with one or more availability conditions that are
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/// allowed to produce a different underlying type at runtime.

‎lib/SIL/IR/Linker.cpp‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -102,7 +102,7 @@ void SILLinkerVisitor::maybeAddFunctionToWorklist(SILFunction *F,
102102
bool setToSerializable) {
103103
SILLinkage linkage = F->getLinkage();
104104
assert((!setToSerializable || F->hasValidLinkageForFragileRef() ||
105-
hasSharedVisibility(linkage)) &&
105+
hasSharedVisibility(linkage) || F->isExternForwardDeclaration()) &&
106106
"called function has wrong linkage for serialized function");
107107

108108
if (!F->isExternalDeclaration()) {
@@ -422,7 +422,7 @@ void SILLinkerVisitor::visitMetatypeInst(MetatypeInst *MI) {
422422
}
423423

424424
void SILLinkerVisitor::visitGlobalAddrInst(GlobalAddrInst *GAI) {
425-
if (!Mod.getASTContext().LangOpts.hasFeature(Feature::Embedded))
425+
if (!Mod.getOptions().EmbeddedSwift)
426426
return;
427427

428428
SILGlobalVariable *G = GAI->getReferencedGlobal();
@@ -448,7 +448,7 @@ void SILLinkerVisitor::process() {
448448
Fn->setSerialized(IsSerialized_t::IsNotSerialized);
449449
}
450450

451-
if (Fn->getModule().getASTContext().LangOpts.hasFeature(Feature::Embedded) &&
451+
if (Fn->getModule().getOptions().EmbeddedSwift &&
452452
Fn->getModule().getASTContext().LangOpts.DebuggerSupport) {
453453
// LLDB requires that functions with bodies are not external.
454454
Fn->setLinkage(stripExternalFromLinkage(Fn->getLinkage()));

‎lib/SIL/IR/Linker.h‎

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -146,8 +146,7 @@ class SILLinkerVisitor : public SILInstructionVisitor<SILLinkerVisitor, void> {
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/// Is the current mode link all? Link all implies we should try and link
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/// everything, not just transparent/shared functions.
148148
bool isLinkAll() const {
149-
return Mode == LinkingMode::LinkAll ||
150-
Mod.getASTContext().LangOpts.hasFeature(Feature::Embedded);
149+
return Mode == LinkingMode::LinkAll || Mod.getOptions().EmbeddedSwift;
151150
}
152151

153152
void linkInVTable(ClassDecl *D);

‎stdlib/public/core/Assert.swift‎

Lines changed: 8 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -278,8 +278,14 @@ public func fatalError(
278278
_ message: @autoclosure () -> StaticString = StaticString(),
279279
file: StaticString = #file, line: UInt = #line
280280
) -> Never {
281-
_assertionFailure("Fatal error", message(), file: file, line: line,
282-
flags: _fatalErrorFlags())
281+
if _isDebugAssertConfiguration() {
282+
_assertionFailure("Fatal error", message(), file: file, line: line,
283+
flags: _fatalErrorFlags())
284+
} else {
285+
Builtin.condfail_message(true._value,
286+
StaticString("fatal error").unsafeRawPointer)
287+
Builtin.unreachable()
288+
}
283289
}
284290
#endif
285291

‎stdlib/public/core/AssertCommon.swift‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -110,6 +110,9 @@ internal func _assertionFailure(
110110
}
111111
}
112112
}
113+
#else
114+
_embeddedReportFatalErrorInFile(prefix: prefix, message: message, file: file,
115+
line: line)
113116
#endif
114117
Builtin.int_trap()
115118
}
@@ -183,6 +186,8 @@ internal func _assertionFailure(
183186
_ prefix: StaticString, _ message: StaticString,
184187
flags: UInt32
185188
) -> Never {
189+
_embeddedReportFatalError(prefix: prefix, message: message)
190+
186191
Builtin.int_trap()
187192
}
188193
#endif

‎stdlib/public/core/EmbeddedRuntime.swift‎

Lines changed: 15 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -351,3 +351,18 @@ public func swift_clearSensitive(buf: UnsafeMutableRawPointer, nbytes: Int) {
351351
}
352352
}
353353

354+
@usableFromInline
355+
func _embeddedReportFatalError(prefix: StaticString, message: StaticString) {
356+
print(prefix, terminator: "")
357+
if message.utf8CodeUnitCount > 0 { print(": ", terminator: "") }
358+
print(message)
359+
}
360+
361+
@usableFromInline
362+
func _embeddedReportFatalErrorInFile(prefix: StaticString, message: StaticString, file: StaticString, line: UInt) {
363+
print(file, terminator: ":")
364+
print(line, terminator: ": ")
365+
print(prefix, terminator: "")
366+
if message.utf8CodeUnitCount > 0 { print(": ", terminator: "") }
367+
print(message)
368+
}

‎test/SIL/modules-extern.swift‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
// RUN: %empty-directory(%t)
2+
// RUN: %{python} %utils/split_file.py -o %t %s
3+
4+
// RUN: %target-swift-frontend -emit-module -o %t/MyModule.swiftmodule %t/MyModule.swift -parse-as-library
5+
// RUN: %target-swift-frontend -c -I %t %t/Main.swift -o %t/a.o
6+
7+
// BEGIN MyModule.swift
8+
9+
@_extern(c)
10+
@_alwaysEmitIntoClient
11+
func some_c_api()
12+
13+
@_transparent
14+
public func publicFuncInAModule() {
15+
some_c_api()
16+
}
17+
18+
// BEGIN Main.swift
19+
20+
import MyModule
21+
22+
@_extern(c)
23+
func some_c_api()
24+
25+
some_c_api()
26+
publicFuncInAModule()

‎test/SIL/modules-extern2.swift‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
// RUN: %empty-directory(%t)
2+
// RUN: %{python} %utils/split_file.py -o %t %s
3+
4+
// RUN: %target-swift-frontend -emit-module -o %t/MyModule.swiftmodule %t/MyModule.swift -parse-as-library
5+
// RUN: %target-swift-frontend -c -I %t %t/Main.swift -o %t/a.o
6+
7+
// BEGIN MyModule.swift
8+
9+
@_silgen_name("some_forward_declared_api")
10+
@_alwaysEmitIntoClient
11+
func some_forward_declared_api()
12+
13+
@_transparent
14+
public func publicFuncInAModule() {
15+
some_forward_declared_api()
16+
}
17+
18+
// BEGIN Main.swift
19+
20+
import MyModule
21+
22+
@_silgen_name("some_forward_declared_api")
23+
func some_forward_declared_api()
24+
25+
some_forward_declared_api()
26+
publicFuncInAModule()

‎test/embedded/Inputs/unbuffered-putchar.c‎

Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,8 @@
1+
#include <stdlib.h>
2+
#include <stdio.h>
3+
4+
int putchar(int c) {
5+
putchar_unlocked(c);
6+
fflush(stdout);
7+
return 0;
8+
}

‎test/embedded/modules-extern.swift‎

Lines changed: 33 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,33 @@
1+
// RUN: %empty-directory(%t)
2+
// RUN: %{python} %utils/split_file.py -o %t %s
3+
4+
// RUN: %target-swift-frontend -emit-module -o %t/MyModule.swiftmodule %t/MyModule.swift -enable-experimental-feature Embedded -parse-as-library
5+
// RUN: %target-swift-frontend -c -I %t %t/Main.swift -enable-experimental-feature Embedded -o %t/a.o
6+
7+
// REQUIRES: swift_in_compiler
8+
// REQUIRES: OS=macosx || OS=linux-gnu
9+
10+
// BEGIN MyModule.swift
11+
12+
@_extern(c)
13+
func some_c_api()
14+
15+
@_transparent
16+
public func publicFuncInAModule() {
17+
internalFuncInAModule()
18+
}
19+
20+
@usableFromInline
21+
internal func internalFuncInAModule() {
22+
some_c_api()
23+
}
24+
25+
// BEGIN Main.swift
26+
27+
import MyModule
28+
29+
@_extern(c)
30+
func some_c_api()
31+
32+
some_c_api()
33+
publicFuncInAModule()

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