static void BuildLinkerScriptBasedOnOriginalNordicScripts(string ldsDirectory, string generalizedName, SoftDevice sd)
{
for (LinkerScriptGenerationPass pass = LinkerScriptGenerationPass.BeforeFirst + 1; pass < LinkerScriptGenerationPass.AfterLast; pass++)
{
DoBuildLinkerScriptBasedOnOriginalNordicScripts(ldsDirectory, generalizedName, sd, pass);
}
}
static void DoBuildLinkerScriptBasedOnOriginalNordicScripts(string ldsDirectory, string generalizedName, SoftDevice sd, LinkerScriptGenerationPass pass)
{
string[] providedSymbols =
{
"PROVIDE(_sbss = __bss_start__);",
"PROVIDE(_ebss = __bss_end__);",
"PROVIDE(_sdata = __data_start__);",
"PROVIDE(_sidata = __etext);",
"PROVIDE(_estack = __StackTop);",
"PROVIDE(_edata =__data_end__);",
"PROVIDE(__isr_vector = __StackTop);",
"PROVIDE(_etext = __etext);"
};
List <string> lines = File.ReadAllLines(sd.LdOriginalName).ToList();
lines.Insert(0, $"/* Based on {sd.LdOriginalName} */");
InsertPowerMgmtData(lines);
var m = Regex.Match(lines.Find(s => s.Contains("INCLUDE")) ?? " ", "INCLUDE[ ]*\"([a-z0-9_.]*)");
if (m.Success)
{
string[] incf = Directory.GetFiles(bspBuilder.Directories.InputDir, m.Groups[1].Value, SearchOption.AllDirectories);
if (incf.Length > 1)
{
throw new Exception("Ambiguous 'common' include file.");
}
if (!File.Exists(Path.Combine(ldsDirectory, m.Groups[1].Value)))
{
string commonLds = Path.Combine(ldsDirectory, m.Groups[1].Value);
var commonLines = File.ReadAllLines(incf[0]).ToList();
var idx = commonLines.IndexOf(" .text :");
if (idx == -1)
{
throw new Exception("Could not find the beginning of section .text");
}
commonLines.Insert(idx, " _stext = .;");
File.WriteAllLines(commonLds, commonLines.ToArray());
}
}
if (pass == LinkerScriptGenerationPass.Nosoftdev)
{
var indFl = lines.FindOrThrow(s => s.Contains("FLASH"));
lines[indFl] = $" FLASH (RX) : ORIGIN = 0x{FLASHBase:x}, LENGTH = 0x{sd.LinkerScriptWithMaximumReservedRAM.FLASH.Origin + sd.LinkerScriptWithMaximumReservedRAM.FLASH.Length:x}";
}
else
{
var mems = sd.LinkerScriptWithMaximumReservedRAM;
lines.Insert(lines.FindOrThrow(s => s.Contains("FLASH")), $" FLASH_SOFTDEVICE (RX) : ORIGIN = 0x{FLASHBase:x8}, LENGTH = 0x{mems.FLASH.Origin - FLASHBase:x8}");
lines.Insert(lines.FindOrThrow(s => s.Contains("RAM")), $" SRAM_SOFTDEVICE (RWX) : ORIGIN = 0x{SRAMBase:x8}, LENGTH = 0x{mems.RAM.Origin - SRAMBase:x8}");
var idxSectionList = lines.FindOrThrow(s => s == "SECTIONS") + 1;
while (lines[idxSectionList].Trim() == "{")
{
idxSectionList++;
}
if (lines[idxSectionList].Contains(". = ALIGN"))
{
idxSectionList++;
}
if (pass == LinkerScriptGenerationPass.Regular)
{
lines.InsertRange(idxSectionList, new[] {
" .softdevice :",
" {",
" KEEP(*(.softdevice))",
" FILL(0xFFFFFFFF);",
$" . = 0x{mems.FLASH.Origin - FLASHBase:x8};",
" } > FLASH_SOFTDEVICE",
"",
" .softdevice_sram :",
" {",
" FILL(0xFFFFFFFF);",
$" . = 0x{mems.RAM.Origin - SRAMBase:x8};",
" } > SRAM_SOFTDEVICE"
});
lines.Insert(lines.FindOrThrow(s => s.Contains("MEMORY")), $"GROUP({sd.Name}_softdevice.o)");
}
}
lines.AddRange(providedSymbols);
string suffix;
if (pass == LinkerScriptGenerationPass.Nosoftdev)
{
suffix = "nosoftdev";
}
else if (pass == LinkerScriptGenerationPass.Reserve)
{
suffix = $"{sd.Name.ToLower()}_reserve";
}
else
{
suffix = sd.Name.ToLower();
}
File.WriteAllLines(Path.Combine(ldsDirectory, $"{generalizedName}_{suffix}.lds"), lines);
}
void DoBuildLinkerScriptBasedOnOriginalNordicScripts(string ldsDirectory, string generalizedName, SoftDevice sd, LinkerScriptGenerationPass pass)
{
string[] providedSymbols =
{
"PROVIDE(_sbss = __bss_start__);",
"PROVIDE(_ebss = __bss_end__);",
"PROVIDE(_sdata = __data_start__);",
"PROVIDE(_sidata = __etext);",
"PROVIDE(_estack = __StackTop);",
"PROVIDE(_edata =__data_end__);",
"PROVIDE(__isr_vector = __StackTop);",
"PROVIDE(_etext = __etext);"
};
string suffix;
if (pass == LinkerScriptGenerationPass.Nosoftdev)
{
suffix = "nosoftdev";
}
else if (pass == LinkerScriptGenerationPass.Reserve)
{
suffix = $"{sd.Name.ToLower()}_reserve";
}
else
{
suffix = sd.Name.ToLower();
}
int idx = generalizedName.IndexOf('_');
if (!sd.LinkerScriptWithMaximumReservedRAM.TryGetValue(generalizedName.Substring(0, idx), out var mems))
{
if (pass == LinkerScriptGenerationPass.Nosoftdev)
{
return;
}
File.WriteAllText(Path.Combine(ldsDirectory, $"{generalizedName}_{suffix}.lds"), $"/* The Nordic SDK did not include a linker script for this device/softdevice combination.\r\nIf you would like to use it nonetheless, consider porting another linker script based on the device/softdevice specifications. */\r\nINPUT(UNSUPPORTED_DEVICE_SOFTDEVICE_COMBINATION)\r\n");
_MissingSoftdeviceScripts.Add(new MissingSoftdeviceScriptInfo {
MCU = generalizedName, Softdevice = sd.Name
});
return;
}
List <string> lines = File.ReadAllLines(mems.FullPath).ToList();
lines.Insert(0, $"/* Based on {mems.FullPath} */");
InsertPowerMgmtData(lines);
var m = Regex.Match(lines.Find(s => s.Contains("INCLUDE")) ?? " ", "INCLUDE[ ]*\"([a-z0-9_.]*)");
if (m.Success)
{
string[] incf = Directory.GetFiles(Directories.InputDir, m.Groups[1].Value, SearchOption.AllDirectories);
if (incf.Length > 1)
{
throw new Exception("Ambiguous 'common' include file.");
}
if (!File.Exists(Path.Combine(ldsDirectory, m.Groups[1].Value)))
{
string commonLds = Path.Combine(ldsDirectory, m.Groups[1].Value);
var commonLines = File.ReadAllLines(incf[0]).ToList();
idx = commonLines.IndexOf(" .text :");
if (idx == -1)
{
throw new Exception("Could not find the beginning of section .text");
}
commonLines.Insert(idx, " _stext = .;");
File.WriteAllLines(commonLds, commonLines.ToArray());
}
}
if (pass == LinkerScriptGenerationPass.Nosoftdev)
{
idx = lines.FindOrThrow(s => s.Contains("FLASH"));
lines[idx] = $" FLASH (RX) : ORIGIN = 0x{FLASHBase:x}, LENGTH = 0x{mems.FLASH.Origin + mems.FLASH.Length - FLASHBase:x}";
idx = lines.FindOrThrow(s => s.Contains("RAM ("));
lines[idx] = $" RAM (RWX) : ORIGIN = 0x{SRAMBase:x}, LENGTH = 0x{mems.RAM.Origin + mems.RAM.Length - SRAMBase:x}";
}
else
{
lines.Insert(lines.FindOrThrow(s => s.Contains("FLASH")), $" FLASH_SOFTDEVICE (RX) : ORIGIN = 0x{FLASHBase:x8}, LENGTH = 0x{mems.FLASH.Origin - FLASHBase:x8}");
lines.Insert(lines.FindOrThrow(s => s.Contains("RAM")), $" SRAM_SOFTDEVICE (RWX) : ORIGIN = 0x{SRAMBase:x8}, LENGTH = 0x{mems.RAM.Origin - SRAMBase:x8}");
var idxSectionList = lines.FindOrThrow(s => s == "SECTIONS") + 1;
while (lines[idxSectionList].Trim() == "{")
{
idxSectionList++;
}
if (lines[idxSectionList].Contains(". = ALIGN"))
{
idxSectionList++;
}
if (pass == LinkerScriptGenerationPass.Regular)
{
lines.InsertRange(idxSectionList, new[] {
" .softdevice :",
" {",
" KEEP(*(.softdevice))",
" FILL(0xFFFFFFFF);",
$" . = 0x{mems.FLASH.Origin - FLASHBase:x8};",
" } > FLASH_SOFTDEVICE",
"",
" .softdevice_sram :",
" {",
" FILL(0xFFFFFFFF);",
$" . = 0x{mems.RAM.Origin - SRAMBase:x8};",
" } > SRAM_SOFTDEVICE"
});
lines.Insert(lines.FindOrThrow(s => s.Contains("MEMORY")), $"GROUP({sd.Name}_softdevice.o)");
}
}
lines.AddRange(providedSymbols);
File.WriteAllLines(Path.Combine(ldsDirectory, $"{generalizedName}_{suffix}.lds"), lines);
}
