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fe56692063
Summary: The following two invocations of `swiftc` behave differently, despite their only difference being the `-g` option: ``` swiftc foo.swift bar.o baz.swiftmodule -o foo swiftc -g foo.swift bar.o baz.swiftmodule -o foo ``` The first invocation compiles `foo.swift`, links it with `bar.o`, and passes the AST information from `baz.swiftmodule` to the linker. The second invocation results in the following error: ``` <unknown>:0: error: cannot load module 'baz' as 'foo' ``` The source of the problem is that the driver determines whether to generate a module based on the debug info level that has been requested, and merges all .swiftmodule inputs if a module is being generated. Modify this behavior to instead pass .swiftmodule inputs directly to the linker if our output is to be linked. This results in both the `swiftc` and the `swiftc -g` invocations above succeeding. Test Plan: 1. `utils/build-script --test` passes. 2. After cloning https://github.com/modocache/SR-2660 and modifying its `build-driver.sh` to point at the local Swift source build directory, running `build-driver.sh` succeeds, and lldb is able to print descriptions with accurate debug info.
55 lines
4.5 KiB
Swift
55 lines
4.5 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 %s 2>&1 | %FileCheck %s -check-prefix=BASIC
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// BASIC: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {object: "[[OBJECT:.*\.o]]"}
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// BASIC: # "x86_64-apple-macosx10.9" - "ld", inputs: ["[[OBJECT]]"], output: {image: "bindings"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 - 2>&1 | %FileCheck %s -check-prefix=STDIN
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// STDIN: # "x86_64-apple-macosx10.9" - "swift", inputs: ["-"], output: {object: "[[OBJECT:.*\.o]]"}
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// STDIN: # "x86_64-apple-macosx10.9" - "ld", inputs: ["[[OBJECT]]"], output: {image: "main"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 %S/Inputs/invalid-module-name.swift 2>&1 | %FileCheck %s -check-prefix=INVALID-NAME-SINGLE-FILE
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// INVALID-NAME-SINGLE-FILE: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}/Inputs/invalid-module-name.swift"], output: {object: "[[OBJECT:.*\.o]]"}
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// INVALID-NAME-SINGLE-FILE: # "x86_64-apple-macosx10.9" - "ld", inputs: ["[[OBJECT]]"], output: {image: "invalid-module-name"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -o NamedOutput %s 2>&1 | %FileCheck %s -check-prefix=NAMEDIMG
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -module-name NamedOutput %s 2>&1 | %FileCheck %s -check-prefix=NAMEDIMG
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// NAMEDIMG: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {object: "[[OBJECT:.*\.o]]"}
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// NAMEDIMG: # "x86_64-apple-macosx10.9" - "ld", inputs: ["[[OBJECT]]"], output: {image: "NamedOutput"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -c %s 2>&1 | %FileCheck %s -check-prefix=OBJ
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// OBJ: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {object: "bindings.o"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -c %s -o /build/bindings.o 2>&1 | %FileCheck %s -check-prefix=NAMEDOBJ
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// NAMEDOBJ: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {object: "/build/bindings.o"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -emit-sil %s 2>&1 | %FileCheck %s -check-prefix=SIL
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// SIL: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {sil: "-"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -emit-ir %S/Inputs/empty.sil 2>&1 | %FileCheck %s -check-prefix=SIL-INPUT
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// SIL-INPUT: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}empty.sil"], output: {llvm-ir: "-"}
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -c -incremental %s 2>&1 | %FileCheck %s -check-prefix=OBJ-AND-DEPS
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// OBJ-AND-DEPS: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {
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// OBJ-AND-DEPS-DAG: swift-dependencies: "bindings.swiftdeps"
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// OBJ-AND-DEPS-DAG: object: "bindings.o"
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// OBJ-AND-DEPS: }
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// RUN: echo '{"%s": {"object": "objroot/bindings.o"}}' > %t/map.json
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// RUN: %swiftc_driver -driver-print-bindings -output-file-map %t/map.json -target x86_64-apple-macosx10.9 %s 2>&1 | %FileCheck %s -check-prefix=MAP
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// MAP: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift"], output: {object: "objroot/bindings.o"}
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// RUN: echo '{"": {"object": "objroot/bindings.o"}}' > %t/map.json
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// RUN: %swiftc_driver -driver-print-bindings -output-file-map %t/map.json -whole-module-optimization -target x86_64-apple-macosx10.9 %s %S/Inputs/lib.swift 2>&1 | %FileCheck %s -check-prefix=MAP-WFO
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// MAP-WFO: # "x86_64-apple-macosx10.9" - "swift", inputs: ["{{.*}}bindings.swift", "{{.*}}lib.swift"], output: {object: "objroot/bindings.o"}
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// RUN: touch %t/a.o %t/b.o
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 %t/a.o %t/b.o -o main 2>&1 | %FileCheck %s -check-prefix=LINK-ONLY
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -g %t/a.o %t/b.o -o main 2>&1 | %FileCheck %s -check-prefix=LINK-ONLY
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// LINK-ONLY: # "x86_64-apple-macosx10.9" - "ld", inputs: ["{{.*}}/a.o", "{{.*}}/b.o"], output: {image: "main"}
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// RUN: touch %t/a.swiftmodule %t/b.swiftmodule
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// RUN: %swiftc_driver -driver-print-bindings -target x86_64-apple-macosx10.9 -g %t/a.o %t/b.o %t/a.swiftmodule %t/b.swiftmodule -o main 2>&1 | %FileCheck %s -check-prefix=DEBUG-LINK-ONLY
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// DEBUG-LINK-ONLY-NOT: "swift"
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// DEBUG-LINK-ONLY: # "x86_64-apple-macosx10.9" - "ld", inputs: ["{{.*}}/a.o", "{{.*}}/b.o", "{{.*}}/a.swiftmodule", "{{.*}}/b.swiftmodule"], output: {image: "main"}
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