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b6cc5ddc94
This patch changes legacy LTO to set data-sections by default. The user can explicitly unset data-sections. The reason for this patch is to match the behaviour of lld and gold plugin. Both lld and gold plugin have data-sections on by default. This patch also fixes the forwarding of the clang options -fno-data-sections and -fno-function-sections to libLTO. Now, when -fno-data/function-sections are specified in clang, -data/function-sections=0 will be passed to libLTO to explicitly unset data/function-sections. Reviewed By: w2yehia, MaskRay Differential Revision: https://reviews.llvm.org/D129401
96 lines
3.6 KiB
C
96 lines
3.6 KiB
C
// Test handling of -f(no-)function-sections and -f(no-)data-sections
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//
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// CHECK-FS: -ffunction-sections
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// CHECK-NOFS-NOT: -ffunction-sections
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// CHECK-DS: -fdata-sections
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// CHECK-NODS-NOT: -fdata-sections
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// CHECK-US-NOT: -fno-unique-section-names
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// CHECK-NOUS: -fno-unique-section-names
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// CHECK-PLUGIN-DEFAULT-NOT: "-plugin-opt=-function-sections
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// CHECK-PLUGIN-DEFAULT-NOT: "-plugin-opt=-data-sections
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// CHECK-PLUGIN-SECTIONS: "-plugin-opt=-function-sections=1"
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// CHECK-PLUGIN-SECTIONS: "-plugin-opt=-data-sections=1"
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// CHECK-PLUGIN-NO-SECTIONS: "-plugin-opt=-function-sections=0"
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// CHECK-PLUGIN-NO-SECTIONS: "-plugin-opt=-data-sections=0"
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: | FileCheck --check-prefix=CHECK-NOFS --check-prefix=CHECK-NODS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -ffunction-sections \
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// RUN: | FileCheck --check-prefix=CHECK-FS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fno-function-sections \
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// RUN: | FileCheck --check-prefix=CHECK-NOFS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -ffunction-sections -fno-function-sections \
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// RUN: | FileCheck --check-prefix=CHECK-NOFS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fno-function-sections -ffunction-sections \
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// RUN: | FileCheck --check-prefix=CHECK-FS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -ffunction-sections -fno-function-sections -ffunction-sections \
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// RUN: | FileCheck --check-prefix=CHECK-FS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fdata-sections \
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// RUN: | FileCheck --check-prefix=CHECK-DS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fno-data-sections \
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// RUN: | FileCheck --check-prefix=CHECK-NODS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fdata-sections -fno-data-sections \
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// RUN: | FileCheck --check-prefix=CHECK-NODS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fno-data-sections -fdata-sections \
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// RUN: | FileCheck --check-prefix=CHECK-DS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fdata-sections -fno-data-sections -fdata-sections \
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// RUN: | FileCheck --check-prefix=CHECK-DS %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -funique-section-names \
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// RUN: | FileCheck --check-prefix=CHECK-US %s
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// RUN: %clang -### %s -fsyntax-only 2>&1 \
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// RUN: --target=i386-unknown-linux \
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// RUN: -fno-unique-section-names \
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// RUN: | FileCheck --check-prefix=CHECK-NOUS %s
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// RUN: %clang -### %s -flto 2>&1 \
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// RUN: --target=x86_64-unknown-linux \
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// RUN: | FileCheck --check-prefix=CHECK-PLUGIN-DEFAULT %s
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// RUN: %clang -### %s -flto 2>&1 \
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// RUN: --target=x86_64-unknown-linux \
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// RUN: -ffunction-sections -fdata-sections \
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// RUN: | FileCheck --check-prefix=CHECK-PLUGIN-SECTIONS %s
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// RUN: %clang -### %s -flto 2>&1 \
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// RUN: --target=x86_64-unknown-linux \
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// RUN: -fno-function-sections -fno-data-sections \
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// RUN: | FileCheck --check-prefix=CHECK-PLUGIN-NO-SECTIONS %s
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