llvm-project/clang/test/Driver/split-debug.c

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// Check that we split debug output properly
//
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-ACTIONS < %t %s
//
// CHECK-ACTIONS: "-split-dwarf-file" "split-debug.dwo" "-split-dwarf-output" "split-debug.dwo"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-ACTIONS < %t %s
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf=split -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-ACTIONS < %t %s
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf=single -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-ACTIONS-SINGLE-SPLIT < %t %s
//
// CHECK-ACTIONS-SINGLE-SPLIT: "-split-dwarf-file" "split-debug.o"
// CHECK-ACTIONS-SINGLE-SPLIT-NOT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf=single -c -### -o %tfoo.o %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-SINGLE-SPLIT-FILENAME < %t %s
//
// CHECK-SINGLE-SPLIT-FILENAME: "-split-dwarf-file" "{{.*}}foo.o"
// CHECK-SINGLE-SPLIT-FILENAME-NOT: "-split-dwarf-output"
// RUN: %clang -target x86_64-macosx -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-NO-ACTIONS < %t %s
//
// CHECK-NO-ACTIONS-NOT: -split-dwarf
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -o Bad.x -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-BAD < %t %s
//
// CHECK-BAD-NOT: "Bad.dwo"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-OPTION < %t %s
//
// RUN: %clang -target x86_64-pc-freebsd12 -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-OPTION < %t %s
//
// RUN: %clang -target amdgcn-amd-amdhsa -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-OPTION < %t %s
//
// CHECK-OPTION: "-split-dwarf-file" "split-debug.dwo" "-split-dwarf-output" "split-debug.dwo"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-ASM < %t %s
//
// CHECK-ASM-NOT: objcopy
// RUN: %clang -target x86_64-unknown-linux-gnu -no-integrated-as -gsplit-dwarf -c -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-IAS < %t %s
//
// CHECK-IAS: objcopy
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -gmlt -fno-split-dwarf-inlining -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-GMLT-WITH-SPLIT < %t %s
//
// CHECK-GMLT-WITH-SPLIT: "-debug-info-kind=line-tables-only"
// CHECK-GMLT-WITH-SPLIT: "-split-dwarf-file"
// CHECK-GMLT-WITH-SPLIT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -g -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-NOINLINE-WITHOUT-SPLIT < %t %s
//
// RUN: %clang -target x86_64-unknown-linux-gnu -g -fno-split-dwarf-inlining -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-NOINLINE-WITHOUT-SPLIT < %t %s
//
// CHECK-NOINLINE-WITHOUT-SPLIT: "-fno-split-dwarf-inlining"
// CHECK-NOINLINE-WITHOUT-SPLIT: "-debug-info-kind=limited"
// RUN: %clang -target x86_64-unknown-linux-gnu -gmlt -gsplit-dwarf -fno-split-dwarf-inlining -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-SPLIT-WITH-GMLT < %t %s
//
[Driver] Simplify -g level computation and its interaction with -gsplit-dwarf Summary: When -gsplit-dwarf is used together with other -g options, in most cases the computed debug info level is decided by the last -g option, with one special case (see below). This patch drops that special case and thus makes it easy to reason about: // If a lower debug level -g comes after -gsplit-dwarf, in some cases // -gsplit-dwarf is cancelled. -gsplit-dwarf -g0 => 0 -gsplit-dwarf -gline-directives-only => DebugDirectivesOnly -gsplit-dwarf -gmlt -fsplit-dwarf-inlining => 1 -gsplit-dwarf -gmlt -fno-split-dwarf-inlining => 1 + split // If -gsplit-dwarf comes after -g options, with this patch, the net // effect is 2 + split for all combinations -g0 -gsplit-dwarf => 2 + split -gline-directives-only -gsplit-dwarf => 2 + split -gmlt -gsplit-dwarf -fsplit-dwarf-inlining => 2 + split -gmlt -gsplit-dwarf -fno-split-dwarf-inlining => 1 + split (before) 2 + split (after) The last case has been changed. In general, if the user intends to lower debug info level, place that -g option after -gsplit-dwarf. Some context: In gcc, the last of -gsplit-dwarf -g0 -g1 -g2 -g3 -ggdb[0-3] -gdwarf-* ... decides the debug info level (-gsplit-dwarf -gdwarf-* have level 2). It is a bit unfortunate that -gsplit-dwarf -gdwarf-* ... participate in the level computation but that is the status quo. Reviewers: dblaikie, echristo, probinson Reviewed By: dblaikie, probinson Subscribers: probinson, aprantl, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D59923 llvm-svn: 358544
2019-04-17 09:46:27 +08:00
// CHECK-SPLIT-WITH-GMLT: "-debug-info-kind=limited"
// CHECK-SPLIT-WITH-GMLT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -fno-split-dwarf-inlining -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-SPLIT-WITH-NOINL < %t %s
//
// CHECK-SPLIT-WITH-NOINL: "-debug-info-kind=limited"
// CHECK-SPLIT-WITH-NOINL: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -gmlt -fsplit-dwarf-inlining -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-GMLT-OVER-SPLIT < %t %s
//
// CHECK-GMLT-OVER-SPLIT: "-debug-info-kind=line-tables-only"
// CHECK-GMLT-OVER-SPLIT-NOT: "-split-dwarf-file"
// CHECK-GMLT-OVER-SPLIT-NOT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -gmlt -gsplit-dwarf -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-SPLIT-OVER-GMLT < %t %s
//
// CHECK-SPLIT-OVER-GMLT: "-debug-info-kind=limited"
// CHECK-SPLIT-OVER-GMLT: "-split-dwarf-file"
// CHECK-SPLIT-OVER-GMLT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -g0 -fno-split-dwarf-inlining -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-G0-OVER-SPLIT < %t %s
//
// CHECK-G0-OVER-SPLIT-NOT: "-debug-info-kind
// CHECK-G0-OVER-SPLIT-NOT: "-split-dwarf-file"
// CHECK-G0-OVER-SPLIT-NOT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -g0 -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-G0-OVER-SPLIT < %t %s
[Driver] Simplify -g level computation and its interaction with -gsplit-dwarf Summary: When -gsplit-dwarf is used together with other -g options, in most cases the computed debug info level is decided by the last -g option, with one special case (see below). This patch drops that special case and thus makes it easy to reason about: // If a lower debug level -g comes after -gsplit-dwarf, in some cases // -gsplit-dwarf is cancelled. -gsplit-dwarf -g0 => 0 -gsplit-dwarf -gline-directives-only => DebugDirectivesOnly -gsplit-dwarf -gmlt -fsplit-dwarf-inlining => 1 -gsplit-dwarf -gmlt -fno-split-dwarf-inlining => 1 + split // If -gsplit-dwarf comes after -g options, with this patch, the net // effect is 2 + split for all combinations -g0 -gsplit-dwarf => 2 + split -gline-directives-only -gsplit-dwarf => 2 + split -gmlt -gsplit-dwarf -fsplit-dwarf-inlining => 2 + split -gmlt -gsplit-dwarf -fno-split-dwarf-inlining => 1 + split (before) 2 + split (after) The last case has been changed. In general, if the user intends to lower debug info level, place that -g option after -gsplit-dwarf. Some context: In gcc, the last of -gsplit-dwarf -g0 -g1 -g2 -g3 -ggdb[0-3] -gdwarf-* ... decides the debug info level (-gsplit-dwarf -gdwarf-* have level 2). It is a bit unfortunate that -gsplit-dwarf -gdwarf-* ... participate in the level computation but that is the status quo. Reviewers: dblaikie, echristo, probinson Reviewed By: dblaikie, probinson Subscribers: probinson, aprantl, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D59923 llvm-svn: 358544
2019-04-17 09:46:27 +08:00
// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf=split -g0 -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-G0-OVER-SPLIT < %t %s
//
// CHECK-G0-OVER-SPLIT-NOT: "-debug-info-kind
// CHECK-G0-OVER-SPLIT-NOT: "-split-dwarf-file"
// CHECK-G0-OVER-SPLIT-NOT: "-split-dwarf-output"
// RUN: %clang -target x86_64-unknown-linux-gnu -g0 -gsplit-dwarf -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-SPLIT-OVER-G0 < %t %s
[Driver] Simplify -g level computation and its interaction with -gsplit-dwarf Summary: When -gsplit-dwarf is used together with other -g options, in most cases the computed debug info level is decided by the last -g option, with one special case (see below). This patch drops that special case and thus makes it easy to reason about: // If a lower debug level -g comes after -gsplit-dwarf, in some cases // -gsplit-dwarf is cancelled. -gsplit-dwarf -g0 => 0 -gsplit-dwarf -gline-directives-only => DebugDirectivesOnly -gsplit-dwarf -gmlt -fsplit-dwarf-inlining => 1 -gsplit-dwarf -gmlt -fno-split-dwarf-inlining => 1 + split // If -gsplit-dwarf comes after -g options, with this patch, the net // effect is 2 + split for all combinations -g0 -gsplit-dwarf => 2 + split -gline-directives-only -gsplit-dwarf => 2 + split -gmlt -gsplit-dwarf -fsplit-dwarf-inlining => 2 + split -gmlt -gsplit-dwarf -fno-split-dwarf-inlining => 1 + split (before) 2 + split (after) The last case has been changed. In general, if the user intends to lower debug info level, place that -g option after -gsplit-dwarf. Some context: In gcc, the last of -gsplit-dwarf -g0 -g1 -g2 -g3 -ggdb[0-3] -gdwarf-* ... decides the debug info level (-gsplit-dwarf -gdwarf-* have level 2). It is a bit unfortunate that -gsplit-dwarf -gdwarf-* ... participate in the level computation but that is the status quo. Reviewers: dblaikie, echristo, probinson Reviewed By: dblaikie, probinson Subscribers: probinson, aprantl, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D59923 llvm-svn: 358544
2019-04-17 09:46:27 +08:00
// RUN: %clang -target x86_64-unknown-linux-gnu -g0 -gsplit-dwarf=split -S -### %s 2> %t
// RUN: FileCheck -check-prefix=CHECK-SPLIT-OVER-G0 < %t %s
//
// CHECK-SPLIT-OVER-G0: "-debug-info-kind=limited"
// CHECK-SPLIT-OVER-G0: "-split-dwarf-file"
// CHECK-SPLIT-OVER-G0: "-split-dwarf-output"