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Remove glibc compat shim with restrictive license

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Unlike the other glibc source code checked into the repo, `csu/init.c`
did not have a license clause that allowed linking without restrictions.

`_IO_stdin_used` is the only symbol in the file and appears to be a 20
year old compatibility shim for the glibc 2.0 ABI. Obsolete in 2.1.
This commit is contained in:
Jay Weisskopf
2019-03-08 00:06:41 -05:00
committed by Andrew Kelley
parent 1e634a384c
commit cddc77dd97
3 changed files with 0 additions and 49 deletions
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25
src/link.cpp
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@@ -426,38 +426,13 @@ static const char *get_libc_crt_file(CodeGen *parent, const char *file) {
c_file->args.append("-g");
c_file->args.append("-Wa,--noexecstack");
return build_libc_object(parent, "abi-note", c_file);
} else if (strcmp(file, "init.o") == 0) {
CFile *c_file = allocate<CFile>(1);
c_file->source_path = path_from_libc(parent, "glibc" OS_SEP "csu" OS_SEP "init.c");
c_file->args.append("-I");
c_file->args.append(path_from_libc(parent, "glibc" OS_SEP "csu"));
glibc_add_include_dirs(parent, c_file);
c_file->args.append("-std=gnu11");
c_file->args.append("-fgnu89-inline");
c_file->args.append("-g");
c_file->args.append("-O2");
c_file->args.append("-fmerge-all-constants");
c_file->args.append("-fno-stack-protector");
c_file->args.append("-fmath-errno");
c_file->args.append("-DSTACK_PROTECTOR_LEVEL=0");
c_file->args.append("-ftls-model=initial-exec");
c_file->args.append("-D_LIBC_REENTRANT");
c_file->args.append("-include");
c_file->args.append(path_from_libc(parent, "glibc" OS_SEP "include" OS_SEP "libc-modules.h"));
c_file->args.append("-DMODULE_NAME=libc");
c_file->args.append("-include");
c_file->args.append(path_from_libc(parent, "glibc" OS_SEP "include" OS_SEP "libc-symbols.h"));
c_file->args.append("-DTOP_NAMESPACE=glibc");
return build_libc_object(parent, "init", c_file);
} else if (strcmp(file, "Scrt1.o") == 0) {
const char *start_os = get_libc_crt_file(parent, "start.os");
const char *abi_note_o = get_libc_crt_file(parent, "abi-note.o");
const char *init_o = get_libc_crt_file(parent, "init.o");
CodeGen *child_gen = create_child_codegen(parent, nullptr, OutTypeObj, nullptr);
codegen_set_out_name(child_gen, buf_create_from_str("Scrt1"));
codegen_add_object(child_gen, buf_create_from_str(start_os));
codegen_add_object(child_gen, buf_create_from_str(abi_note_o));
codegen_add_object(child_gen, buf_create_from_str(init_o));
codegen_build_and_link(child_gen);
return buf_ptr(&child_gen->output_file_path);
} else if (strcmp(file, "libc_nonshared.a") == 0) {