// Links the specified elf file.
//
// @param dstFile The filename of the destination elf file to
// link.
// @param options Some build options specifying how the elf file
// gets generated.
// @param objFiles An array of the source .o and .a filenames.
func (c *Compiler) CompileBinary(dstFile string, options map[string]bool,
objFiles []string, keepSymbols []string, elfLib string) error {
// Make sure the compiler package info is added to the global set.
c.ensureLclInfoAdded()
objList := c.getObjFiles(util.UniqueStrings(objFiles))
util.StatusMessage(util.VERBOSITY_DEFAULT, "Linking %s\n", dstFile)
util.StatusMessage(util.VERBOSITY_VERBOSE, "Linking %s with input files %s\n",
dstFile, objList)
if elfLib != "" {
util.StatusMessage(util.VERBOSITY_VERBOSE, "Linking %s with rom image %s\n",
dstFile, elfLib)
}
cmd := c.CompileBinaryCmd(dstFile, options, objFiles, keepSymbols, elfLib)
_, err := util.ShellCommand(cmd)
if err != nil {
return err
}
err = writeCommandFile(dstFile, cmd)
if err != nil {
return err
}
return nil
}
// Calculates the command-line invocation necessary to link the specified elf
// file.
//
// @param dstFile The filename of the destination elf file to
// link.
// @param options Some build options specifying how the elf file
// gets generated.
// @param objFiles An array of the source .o and .a filenames.
//
// @return (success) The command string.
func (c *Compiler) CompileBinaryCmd(dstFile string, options map[string]bool,
objFiles []string, keepSymbols []string, elfLib string) string {
objList := c.getObjFiles(util.UniqueStrings(objFiles))
cmd := c.ccPath + " -o " + dstFile + " " + " " + c.cflagsString()
if elfLib != "" {
cmd += " -Wl,--just-symbols=" + elfLib
}
if c.ldResolveCircularDeps {
cmd += " -Wl,--start-group " + objList + " -Wl,--end-group "
} else {
cmd += " " + objList
}
if keepSymbols != nil {
for _, name := range keepSymbols {
cmd += " -Wl,--undefined=" + name
}
}
cmd += " " + c.lflagsString()
/* so we don't get multiple global definitions of the same vartiable */
//cmd += " -Wl,--warn-common "
for _, ls := range c.LinkerScripts {
cmd += " -T " + ls
}
if options["mapFile"] {
cmd += " -Wl,-Map=" + dstFile + ".map"
}
return cmd
}