https://github.com/quic-garvgupt updated https://github.com/llvm/llvm-project/pull/132807
>From ab8d90fc9f03a182295cb79c766ddeb0455c2f94 Mon Sep 17 00:00:00 2001 From: Garvit Gupta <quic_garvg...@quicinc.com> Date: Mon, 24 Mar 2025 06:49:09 -0700 Subject: [PATCH] [Driver] Add option to force udnefined symbols during linking in BareMetal toolchain object. Add support for `-u` option to force defined symbols. This option is supported by both lld and gnuld. This is done as a part of the effort to merge RISCVToolchain object into BareMetal toolchain object. This is the 4th patch in the series of patches for merging RISCVToolchain object into BareMetal toolchain object. RFC: https://discourse.llvm.org/t/merging-riscvtoolchain-and-baremetal-toolchains/75524 Change-Id: Ia6597c756923a77fd9c7cb9a6ae8e52a56f5457d --- clang/lib/Driver/ToolChains/BareMetal.cpp | 5 +++-- clang/test/Driver/baremetal-undefined-symbols.c | 14 ++++++++++++++ clang/test/Driver/riscv-args.c | 6 ------ 3 files changed, 17 insertions(+), 8 deletions(-) create mode 100644 clang/test/Driver/baremetal-undefined-symbols.c delete mode 100644 clang/test/Driver/riscv-args.c diff --git a/clang/lib/Driver/ToolChains/BareMetal.cpp b/clang/lib/Driver/ToolChains/BareMetal.cpp index 3abfb7efe6bfc..d70d39c3c5ca6 100644 --- a/clang/lib/Driver/ToolChains/BareMetal.cpp +++ b/clang/lib/Driver/ToolChains/BareMetal.cpp @@ -611,8 +611,9 @@ void baremetal::Linker::ConstructJob(Compilation &C, const JobAction &JA, } } - Args.addAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, - options::OPT_s, options::OPT_t, options::OPT_r}); + Args.addAllArgs(CmdArgs, + {options::OPT_L, options::OPT_u, options::OPT_T_Group, + options::OPT_s, options::OPT_t, options::OPT_r}); TC.AddFilePathLibArgs(Args, CmdArgs); diff --git a/clang/test/Driver/baremetal-undefined-symbols.c b/clang/test/Driver/baremetal-undefined-symbols.c new file mode 100644 index 0000000000000..bff58c7c54c33 --- /dev/null +++ b/clang/test/Driver/baremetal-undefined-symbols.c @@ -0,0 +1,14 @@ +// Check the arguments are correctly passed + +// Make sure -T is the last with gcc-toolchain option +// RUN: %clang -### --target=riscv32 --gcc-toolchain= -Xlinker --defsym=FOO=10 -T a.lds -u foo %s 2>&1 \ +// RUN: | FileCheck -check-prefix=CHECK-LD %s +// CHECK-LD: {{.*}} "--defsym=FOO=10" {{.*}} "-u" "foo" {{.*}} "-T" "a.lds" + +// TODO: Merge this test with the above in the last patch when finally integrating riscv +// Make sure -T is the last with gcc-toolchain option +// RUN: %clang -### --target=aarch64-none-elf --gcc-toolchain= -Xlinker --defsym=FOO=10 -T a.lds -u foo %s 2>&1 \ +// RUN: | FileCheck -check-prefix=CHECK-ARM-LD %s +// RUN: %clang -### --target=armv6m-none-eabi --gcc-toolchain= -Xlinker --defsym=FOO=10 -T a.lds -u foo %s 2>&1 \ +// RUN: | FileCheck -check-prefix=CHECK-ARM-LD %s +// CHECK-ARM-LD: {{.*}} "-T" "a.lds" "-u" "foo" {{.*}} "--defsym=FOO=10" diff --git a/clang/test/Driver/riscv-args.c b/clang/test/Driver/riscv-args.c deleted file mode 100644 index cab08e5b0f811..0000000000000 --- a/clang/test/Driver/riscv-args.c +++ /dev/null @@ -1,6 +0,0 @@ -// Check the arguments are correctly passed - -// Make sure -T is the last with gcc-toolchain option -// RUN: %clang -### --target=riscv32 --gcc-toolchain= -Xlinker --defsym=FOO=10 -T a.lds -u foo %s 2>&1 \ -// RUN: | FileCheck -check-prefix=CHECK-LD %s -// CHECK-LD: {{.*}} "--defsym=FOO=10" {{.*}} "-u" "foo" {{.*}} "-T" "a.lds" _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
