maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/test/Driver/ld-path.c

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

67 lines
3.2 KiB
C
Raw Normal View History

[Driver] Add --ld-path= and deprecate -fuse-ld=/abs/path and -fuse-ld=rel/path Supersedes D80225. Add --ld-path= to avoid strange target specific prefixes and make -fuse-ld= focus on its intended job: "linker flavor". (-f* affects generated code or language features. --ld-path does not affect codegen, so it is not named -f*) The way --ld-path= works is similar to "Command Search and Execution" in POSIX.1-2017 2.9.1 Simple Commands. If --ld-path= specifies * an absolute path, the value specifies the linker. * a relative path without a path component separator (/), the value is searched using the -B, COMPILER_PATH, then PATH. * a relative path with a path component separator, the linker is found relative to the current working directory. -fuse-ld= and --ld-path= can be composed, e.g. `-fuse-ld=lld --ld-path=/usr/bin/ld.lld` The driver can base its linker option decision on the flavor -fuse-ld=, but it should not do fragile flavor checking with --ld-path=. Reviewed By: whitequark, keith Differential Revision: https://reviews.llvm.org/D83015
2020-07-21 00:34:39 +08:00
/// This tests uses the PATH environment variable.
// UNSUPPORTED: system-windows
// RUN: cd %S
/// If --ld-path= specifies a word (without /), -B and COMPILER_PATH are
/// consulted to locate the linker.
// RUN: %clang %s -### -B %S/Inputs/basic_freebsd_tree/usr/bin --ld-path=ld.bfd \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=BFD
// RUN: env COMPILER_PATH=%S/Inputs/basic_freebsd_tree/usr/bin %clang %s -### --ld-path=ld.bfd \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=BFD
/// Then PATH is consulted.
// RUN: env PATH=%S/Inputs/basic_freebsd_tree/usr/bin %clang %s -### --ld-path=ld.bfd \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=BFD
// BFD: Inputs/basic_freebsd_tree/usr/bin/ld.bfd"
// RUN: env PATH=%S/Inputs/basic_freebsd_tree/usr/bin %clang %s -### --ld-path=ld.gold \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=GOLD
// GOLD: Inputs/basic_freebsd_tree/usr/bin/ld.gold"
// RUN: env COMPILER_PATH= PATH=%S/Inputs/basic_freebsd_tree/usr/bin %clang %s -### --ld-path=not_exist \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=NOT_EXIST
// NOT_EXIST: error: invalid linker name in argument '--ld-path=not_exist'
// RUN: %clang %s -### --ld-path= \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=EMPTY
// EMPTY: error: invalid linker name in argument '--ld-path='
/// If --ld-path= contains a slash, PATH is not consulted.
// RUN: env COMPILER_PATH=%S/Inputs/basic_freebsd_tree/usr/bin %clang %s -### --ld-path=./ld.bfd \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=NO_BFD
// NO_BFD: error: invalid linker name in argument '--ld-path=./ld.bfd'
/// --ld-path can specify an absolute path.
// RUN: %clang %s -### --ld-path=%S/Inputs/basic_freebsd_tree/usr/bin/ld.bfd \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=BFD
// RUN: %clang %s -### --ld-path=Inputs/basic_freebsd_tree/usr/bin/ld.bfd \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=BFD
/// --ld-path= and -fuse-ld= can be used together. --ld-path= takes precedence.
/// -fuse-ld= can be used to specify the linker flavor.
// RUN: %clang %s -### -Werror --ld-path=%S/Inputs/basic_freebsd_tree/usr/bin/ld.bfd -fuse-ld=gold \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=BFD --implicit-check-not=error:
/// --ld-path= respects -working-directory.
// RUN: %clang %s -### --ld-path=usr/bin/ld.bfd -working-directory=%S/Inputs/basic_freebsd_tree \
// RUN: --target=x86_64-unknown-freebsd --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 | \
// RUN: FileCheck %s --check-prefix=USR_BIN_BFD
// USR_BIN_BFD: "usr/bin/ld.bfd"