libc/src/stdio/CMakeLists.txt

# Helper function that creates an alias if a target specific implementation
# exists, otherwise it uses a generic one.
function(add_stdio_entrypoint_object name)
  if(TARGET libc.src.stdio.${LIBC_TARGET_OS}.${name})
    add_entrypoint_object(
      ${name}
      ALIAS
      DEPENDS
        .${LIBC_TARGET_OS}.${name}
    )
  elseif(TARGET libc.src.stdio.generic.${name})
    add_entrypoint_object(
      ${name}
      ALIAS
      DEPENDS
        .generic.${name}
    )
  endif()
endfunction()

if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS})
  add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS})
endif()

add_stdio_entrypoint_object(stdin)
add_stdio_entrypoint_object(stdout)
add_stdio_entrypoint_object(stderr)

add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/generic)

if(NOT LLVM_LIBC_FULL_BUILD)
  set(use_system_file "COMPILE_OPTIONS")
  libc_add_definition(use_system_file "LIBC_COPT_STDIO_USE_SYSTEM_FILE")
endif()

if(TARGET libc.src.stdio.${LIBC_TARGET_OS}.fflush_internal)
  add_object_library(
    fflush_internal
    ALIAS
    DEPENDS
      .${LIBC_TARGET_OS}.fflush_internal
  )
elseif(TARGET libc.src.stdio.generic.fflush_internal)
  add_object_library(
    fflush_internal
    ALIAS
    DEPENDS
      .generic.fflush_internal
  )
endif()

add_entrypoint_object(
  fflush
  SRCS
    fflush.cpp
  HDRS
    fflush.h
  DEPENDS
    libc.hdr.stdio_macros
    libc.hdr.types.FILE
    libc.src.__support.error_or
    libc.src.__support.libc_errno
    .fflush_internal
)

add_entrypoint_object(
  flockfile
  SRCS
    flockfile.cpp
  HDRS
    flockfile.h
  DEPENDS
    libc.hdr.types.FILE
    libc.src.__support.File.file
    libc.src.__support.File.platform_file
)

add_entrypoint_object(
  funlockfile
  SRCS
    funlockfile.cpp
  HDRS
    funlockfile.h
  DEPENDS
    libc.hdr.types.FILE
    libc.src.__support.File.file
    libc.src.__support.File.platform_file
)

add_entrypoint_object(
  fmemopen
  SRCS
    fmemopen.cpp
  HDRS
    fmemopen.h
  DEPENDS
    libc.hdr.errno_macros
    libc.hdr.stdint_proxy
    libc.hdr.stdio_macros
    libc.hdr.types.FILE
    libc.hdr.types.off_t
    libc.hdr.types.size_t
    libc.src.__support.CPP.algorithm
    libc.src.__support.CPP.new
    libc.src.__support.File.file
    libc.src.__support.alloc_checker
    libc.src.__support.libc_errno
    libc.src.__support.macros.null_check
    libc.src.string.memory_utils.inline_memcpy
)

add_entrypoint_object(
  fopencookie
  SRCS
    fopencookie.cpp
  HDRS
    fopencookie.h
  DEPENDS
    libc.hdr.stdio_macros
    libc.hdr.types.off_t
    libc.hdr.types.cookie_io_functions_t
    libc.hdr.types.FILE
    libc.src.__support.CPP.new
    libc.src.__support.File.file
)

add_entrypoint_object(
  setbuf
  SRCS
    setbuf.cpp
  HDRS
    setbuf.h
  DEPENDS
    libc.src.errno.errno
    libc.hdr.types.off_t
    libc.src.__support.File.file
    libc.src.__support.File.platform_file
)

add_entrypoint_object(
  setvbuf
  SRCS
    setvbuf.cpp
  HDRS
    setvbuf.h
  DEPENDS
    libc.src.errno.errno
    libc.hdr.types.FILE
    libc.src.__support.File.file
    libc.src.__support.File.platform_file
)

add_entrypoint_object(
  sscanf
  SRCS
    sscanf.cpp
  HDRS
    sscanf.h
  DEPENDS
    libc.src.__support.arg_list
    libc.src.stdio.scanf_core.scanf_main
    libc.src.stdio.scanf_core.string_reader
)

add_entrypoint_object(
  vsscanf
  SRCS
    vsscanf.cpp
  HDRS
    vsscanf.h
  DEPENDS
    libc.src.__support.arg_list
    libc.src.stdio.scanf_core.scanf_main
    libc.src.stdio.scanf_core.string_reader
)

set(sprintf_srcs sprintf.cpp)
if(LIBC_CONF_PRINTF_MODULAR)
  list(APPEND sprintf_srcs sprintf_modular.cpp)
endif()

add_entrypoint_object(
  sprintf
  SRCS
    ${sprintf_srcs}
  HDRS
    sprintf.h
  DEPENDS
    libc.src.__support.printf_core.printf_main
    libc.src.__support.printf_core.writer
    libc.src.__support.printf_core.core_structs
    libc.src.__support.printf_core.error_mapper
    libc.src.__support.libc_errno
    libc.src.__support.CPP.limits
)

set(snprintf_srcs snprintf.cpp)
if(LIBC_CONF_PRINTF_MODULAR)
  list(APPEND snprintf_srcs snprintf_modular.cpp)
endif()
add_entrypoint_object(
  snprintf
  SRCS
    ${snprintf_srcs}
  HDRS
    snprintf.h
  DEPENDS
    libc.src.__support.printf_core.printf_main
    libc.src.__support.printf_core.writer
    libc.src.__support.printf_core.core_structs
    libc.src.__support.printf_core.error_mapper
    libc.src.__support.libc_errno
    libc.src.__support.CPP.limits
)

set(asprintf_srcs asprintf.cpp)
if(LIBC_CONF_PRINTF_MODULAR)
  list(APPEND asprintf_srcs asprintf_modular.cpp)
endif()
add_entrypoint_object(
  asprintf
  SRCS
    ${asprintf_srcs}
  HDRS
    asprintf.h
  DEPENDS
    libc.src.__support.printf_core.vasprintf_internal
    libc.src.__support.printf_core.core_structs
    libc.src.__support.printf_core.error_mapper
    libc.src.__support.libc_errno
    libc.src.__support.CPP.limits
)

set(vsprintf_srcs vsprintf.cpp)
if(LIBC_CONF_PRINTF_MODULAR)
  list(APPEND vsprintf_srcs vsprintf_modular.cpp)
endif()

add_entrypoint_object(
  vsprintf
  SRCS
    ${vsprintf_srcs}
  HDRS
    vsprintf.h
  DEPENDS
    libc.src.__support.printf_core.printf_main
    libc.src.__support.printf_core.writer
    libc.src.__support.printf_core.core_structs
    libc.src.__support.printf_core.error_mapper
    libc.src.__support.libc_errno
    libc.src.__support.CPP.limits
)

set(vsnprintf_srcs vsnprintf.cpp)
if(LIBC_CONF_PRINTF_MODULAR)
  list(APPEND vsnprintf_srcs vsnprintf_modular.cpp)
endif()

add_entrypoint_object(
  vsnprintf
  SRCS
    ${vsnprintf_srcs}
  HDRS
    vsnprintf.h
  DEPENDS
    libc.src.__support.printf_core.printf_main
    libc.src.__support.printf_core.writer
    libc.src.__support.printf_core.core_structs
    libc.src.__support.printf_core.error_mapper
    libc.src.__support.libc_errno
    libc.src.__support.CPP.limits
)

set(vasprintf_srcs vasprintf.cpp)
if(LIBC_CONF_PRINTF_MODULAR)
  list(APPEND vasprintf_srcs vasprintf_modular.cpp)
endif()

add_entrypoint_object(
  vasprintf
  SRCS
    ${vasprintf_srcs}
  HDRS
    vasprintf.h
  DEPENDS
    libc.src.__support.printf_core.vasprintf_internal
    libc.src.__support.printf_core.core_structs
    libc.src.__support.printf_core.error_mapper
    libc.src.__support.libc_errno
    libc.src.__support.CPP.limits
)

add_subdirectory(scanf_core)

add_entrypoint_object(
  remove
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.remove
)

add_entrypoint_object(
  rename
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.rename
)

add_entrypoint_object(
  renameat
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.renameat
)

add_entrypoint_object(
  fdopen
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.fdopen
)

add_entrypoint_object(
  popen
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.popen
)

add_entrypoint_object(
  pclose
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.pclose
)

add_entrypoint_object(
  tmpfile
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.tmpfile
)

add_entrypoint_object(
  tmpnam
  ALIAS
  DEPENDS
    .${LIBC_TARGET_OS}.tmpnam
)

# These entrypoints have multiple potential implementations.
add_stdio_entrypoint_object(feof)
add_stdio_entrypoint_object(feof_unlocked)
add_stdio_entrypoint_object(ferror)
add_stdio_entrypoint_object(ferror_unlocked)
add_stdio_entrypoint_object(fseek)
add_stdio_entrypoint_object(fgetpos)
add_stdio_entrypoint_object(fsetpos)
add_stdio_entrypoint_object(rewind)
add_stdio_entrypoint_object(ftell)
add_stdio_entrypoint_object(fseeko)
add_stdio_entrypoint_object(fileno)
add_stdio_entrypoint_object(ftello)
add_stdio_entrypoint_object(clearerr)
add_stdio_entrypoint_object(clearerr_unlocked)
add_stdio_entrypoint_object(fopen)
add_stdio_entrypoint_object(freopen)
add_stdio_entrypoint_object(fclose)
add_stdio_entrypoint_object(fread_unlocked)
add_stdio_entrypoint_object(fread)
add_stdio_entrypoint_object(perror)
add_stdio_entrypoint_object(puts)
add_stdio_entrypoint_object(fputs)
add_stdio_entrypoint_object(fwrite_unlocked)
add_stdio_entrypoint_object(fwrite)
add_stdio_entrypoint_object(fputc)
add_stdio_entrypoint_object(putc)
add_stdio_entrypoint_object(putchar)
add_stdio_entrypoint_object(printf)
add_stdio_entrypoint_object(fprintf)
add_stdio_entrypoint_object(fgetc)
add_stdio_entrypoint_object(fgetc_unlocked)
add_stdio_entrypoint_object(getc)
add_stdio_entrypoint_object(getc_unlocked)
add_stdio_entrypoint_object(getchar)
add_stdio_entrypoint_object(getchar_unlocked)
add_stdio_entrypoint_object(fgets)
add_stdio_entrypoint_object(ungetc)
add_stdio_entrypoint_object(scanf)
add_stdio_entrypoint_object(fscanf)
add_stdio_entrypoint_object(vprintf)
add_stdio_entrypoint_object(vfprintf)
add_stdio_entrypoint_object(vscanf)
add_stdio_entrypoint_object(vfscanf)