https://github.com/quic-garvgupt created https://github.com/llvm/llvm-project/pull/132807
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 >From 09f0151e2a4f06fa86e9f79901ab6e787f7b8446 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/riscv-args.c | 6 ------ clang/test/Driver/undefined-symbols.c | 15 +++++++++++++++ 3 files changed, 18 insertions(+), 8 deletions(-) delete mode 100644 clang/test/Driver/riscv-args.c create mode 100644 clang/test/Driver/undefined-symbols.c diff --git a/clang/lib/Driver/ToolChains/BareMetal.cpp b/clang/lib/Driver/ToolChains/BareMetal.cpp index 919fc6fe71178..edf9ecc728282 100644 --- a/clang/lib/Driver/ToolChains/BareMetal.cpp +++ b/clang/lib/Driver/ToolChains/BareMetal.cpp @@ -566,8 +566,9 @@ 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/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" diff --git a/clang/test/Driver/undefined-symbols.c b/clang/test/Driver/undefined-symbols.c new file mode 100644 index 0000000000000..0ce0db43bccad --- /dev/null +++ b/clang/test/Driver/undefined-symbols.c @@ -0,0 +1,15 @@ +// 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" + _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
