GCC Code Coverage Report

Directory:	../
File:	src/linker/ExternalLinkerInterface.cpp
Date:	2025-02-05 01:09:36

	Exec	Total	Coverage
Lines:	32	36	88.9%
Functions:	5	5	100.0%
Branches:	36	82	43.9%

  
      Line
      Branch
      Exec
      Source
    
      // Copyright (c) 2021-2025 ChilliBits. All rights reserved.
    
      #include "ExternalLinkerInterface.h"
    
      #include "util/Timer.h"
    
      #include <iostream>
    
      #include <exception/CompilerError.h>
    
      #include <exception/LinkerError.h>
    
      #include <util/FileUtil.h>
    
      namespace spice::compiler {
    
      187
      void ExternalLinkerInterface::prepare() {
    
        // Set target to linker
    
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      187
        addLinkerFlag("--target=" + cliOptions.targetTriple);
    
        // Static linking
    
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      187
        if (cliOptions.staticLinking)
    
      ✗
          addLinkerFlag("-static");
    
        // Stripping symbols
    
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      187
        if (!cliOptions.generateDebugInfo)
    
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      370
          addLinkerFlag("-Wl,-s");
    
        // Web Assembly
    
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      187
        if (cliOptions.targetArch == TARGET_WASM32 || cliOptions.targetArch == TARGET_WASM64) {
    
      ✗
          addLinkerFlag("-nostdlib");
    
      ✗
          addLinkerFlag("-Wl,--no-entry");
    
      ✗
          addLinkerFlag("-Wl,--export-all");
    
        }
    
      187
      }
    
      /**
    
       * Start the linking process
    
       */
    
      187
      void ExternalLinkerInterface::link() const {
    
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      187
        assert(!outputPath.empty());
    
        // Build the linker command
    
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      187
        std::stringstream linkerCommandBuilder;
    
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      187
        const auto [linkerInvokerName, linkerInvokerPath] = FileUtil::findLinkerInvoker();
    
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      187
        linkerCommandBuilder << linkerInvokerPath;
    
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      187
        const auto [linkerName, linkerPath] = FileUtil::findLinker(cliOptions);
    
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      187
        linkerCommandBuilder << " -fuse-ld=" << linkerPath;
    
        // Append linker flags
    
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      985
        for (const std::string &linkerFlag : linkerFlags)
    
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      798
          linkerCommandBuilder << " " << linkerFlag;
    
        // Append output path
    
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      187
        linkerCommandBuilder << " -o " << outputPath.string();
    
        // Append object files
    
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      904
        for (const std::string &objectFilePath : objectFilePaths)
    
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      717
          linkerCommandBuilder << " " << objectFilePath;
    
        // Print status message
    
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      187
        if (cliOptions.printDebugOutput) {
    
      −
          std::cout << "\nLinking with: " << linkerInvokerName << " (invoker) / " << linkerName << " (linker)"; // GCOV_EXCL_LINE
    
      −
          std::cout << "\nEmitting executable to path: " << outputPath.string() << "\n";                        // GCOV_EXCL_LINE
    
        }
    
        // Call the linker
    
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      187
        Timer timer;
    
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      187
        timer.start();
    
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      187
        const std::string linkerCommand = linkerCommandBuilder.str();
    
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      187
        const auto [output, exitCode] = FileUtil::exec(linkerCommand);
    
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      187
        timer.stop();
    
        // Check for linker error
    
      −
        if (exitCode != 0)                                                          // GCOV_EXCL_LINE
    
      −
          throw LinkerError(LINKER_ERROR, "Linker exited with non-zero exit code"); // GCOV_EXCL_LINE
    
        // Print linker result if appropriate
    
      −
        if (cliOptions.printDebugOutput && !output.empty())    // GCOV_EXCL_LINE
    
      −
          std::cout << "Linking result: " << output << "\n\n"; // GCOV_EXCL_LINE
    
        // Print link time
    
      −
        if (cliOptions.printDebugOutput)                                                    // GCOV_EXCL_LINE
    
      −
          std::cout << "Total link time: " << timer.getDurationMilliseconds() << " ms\n\n"; // GCOV_EXCL_LINE
    
      187
      }
    
      /**
    
       * Add another object file to be linked when calling 'link()'
    
       *
    
       * @param objectFilePath Path to the object file
    
       */
    
      753
      void ExternalLinkerInterface::addObjectFilePath(const std::string &objectFilePath) { objectFilePaths.push_back(objectFilePath); }
    
      /**
    
       * Add another linker flag for the call to the linker executable
    
       *
    
       * @param flag Linker flag
    
       */
    
      799
      void ExternalLinkerInterface::addLinkerFlag(const std::string &flag) { linkerFlags.push_back(flag); }
    
      /**
    
       * Add another source file to compile and link in (C or C++)
    
       *
    
       * @param additionalSource Additional source file
    
       */
    
      2
      void ExternalLinkerInterface::addAdditionalSourcePath(std::filesystem::path additionalSource) {
    
        // Check if the file exists
    
      −
        if (!exists(additionalSource)) {                                                                           // GCOV_EXCL_LINE
    
      −
          const std::string msg = "The additional source file '" + additionalSource.string() + "' does not exist"; // GCOV_EXCL_LINE
    
      −
          throw CompilerError(IO_ERROR, msg);                                                                      // GCOV_EXCL_LINE
    
      −
        } // GCOV_EXCL_LINE
    
        // Add the file to the linker
    
      2
        additionalSource.make_preferred();
    
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      2
        addObjectFilePath(additionalSource.string());
    
      2
      }
    
      } // namespace spice::compiler

Line	Branch	Exec	Source
1			// Copyright (c) 2021-2025 ChilliBits. All rights reserved.
2
3			#include "ExternalLinkerInterface.h"
4			#include "util/Timer.h"
5
6			#include <iostream>
7
8			#include <exception/CompilerError.h>
9			#include <exception/LinkerError.h>
10			#include <util/FileUtil.h>
11
12			namespace spice::compiler {
13
14		187	void ExternalLinkerInterface::prepare() {
15			// Set target to linker
16	2/4 ✓ Branch 0 (2→3) taken 187 times. ✗ Branch 1 (2→50) not taken. ✓ Branch 2 (3→4) taken 187 times. ✗ Branch 3 (3→48) not taken.	187	addLinkerFlag("--target=" + cliOptions.targetTriple);
17
18			// Static linking
19	1/2 ✗ Branch 0 (5→6) not taken. ✓ Branch 1 (5→13) taken 187 times.	187	if (cliOptions.staticLinking)
20		✗	addLinkerFlag("-static");
21
22			// Stripping symbols
23	2/2 ✓ Branch 0 (13→14) taken 185 times. ✓ Branch 1 (13→21) taken 2 times.	187	if (!cliOptions.generateDebugInfo)
24	2/4 ✓ Branch 0 (16→17) taken 185 times. ✗ Branch 1 (16→59) not taken. ✓ Branch 2 (17→18) taken 185 times. ✗ Branch 3 (17→57) not taken.	370	addLinkerFlag("-Wl,-s");
25
26			// Web Assembly
27	3/6 ✓ Branch 0 (22→23) taken 187 times. ✗ Branch 1 (22→25) not taken. ✗ Branch 2 (24→25) not taken. ✓ Branch 3 (24→26) taken 187 times. ✗ Branch 4 (27→28) not taken. ✓ Branch 5 (27→47) taken 187 times.	187	if (cliOptions.targetArch == TARGET_WASM32 \|\| cliOptions.targetArch == TARGET_WASM64) {
28		✗	addLinkerFlag("-nostdlib");
29		✗	addLinkerFlag("-Wl,--no-entry");
30		✗	addLinkerFlag("-Wl,--export-all");
31			}
32		187	}
33
34			/**
35			* Start the linking process
36			*/
37		187	void ExternalLinkerInterface::link() const {
38	1/2 ✗ Branch 0 (3→4) not taken. ✓ Branch 1 (3→5) taken 187 times.	187	assert(!outputPath.empty());
39
40			// Build the linker command
41	1/2 ✓ Branch 0 (5→6) taken 187 times. ✗ Branch 1 (5→104) not taken.	187	std::stringstream linkerCommandBuilder;
42	1/2 ✓ Branch 0 (6→7) taken 187 times. ✗ Branch 1 (6→102) not taken.	187	const auto [linkerInvokerName, linkerInvokerPath] = FileUtil::findLinkerInvoker();
43	1/2 ✓ Branch 0 (7→8) taken 187 times. ✗ Branch 1 (7→100) not taken.	187	linkerCommandBuilder << linkerInvokerPath;
44	1/2 ✓ Branch 0 (8→9) taken 187 times. ✗ Branch 1 (8→100) not taken.	187	const auto [linkerName, linkerPath] = FileUtil::findLinker(cliOptions);
45	2/4 ✓ Branch 0 (9→10) taken 187 times. ✗ Branch 1 (9→98) not taken. ✓ Branch 2 (10→11) taken 187 times. ✗ Branch 3 (10→98) not taken.	187	linkerCommandBuilder << " -fuse-ld=" << linkerPath;
46			// Append linker flags
47	2/2 ✓ Branch 0 (18→13) taken 798 times. ✓ Branch 1 (18→19) taken 187 times.	985	for (const std::string &linkerFlag : linkerFlags)
48	2/4 ✓ Branch 0 (14→15) taken 798 times. ✗ Branch 1 (14→77) not taken. ✓ Branch 2 (15→16) taken 798 times. ✗ Branch 3 (15→77) not taken.	798	linkerCommandBuilder << " " << linkerFlag;
49			// Append output path
50	3/6 ✓ Branch 0 (19→20) taken 187 times. ✗ Branch 1 (19→98) not taken. ✓ Branch 2 (20→21) taken 187 times. ✗ Branch 3 (20→80) not taken. ✓ Branch 4 (21→22) taken 187 times. ✗ Branch 5 (21→78) not taken.	187	linkerCommandBuilder << " -o " << outputPath.string();
51			// Append object files
52	2/2 ✓ Branch 0 (30→25) taken 717 times. ✓ Branch 1 (30→31) taken 187 times.	904	for (const std::string &objectFilePath : objectFilePaths)
53	2/4 ✓ Branch 0 (26→27) taken 717 times. ✗ Branch 1 (26→81) not taken. ✓ Branch 2 (27→28) taken 717 times. ✗ Branch 3 (27→81) not taken.	717	linkerCommandBuilder << " " << objectFilePath;
54
55			// Print status message
56	1/2 ✗ Branch 0 (31→32) not taken. ✓ Branch 1 (31→43) taken 187 times.	187	if (cliOptions.printDebugOutput) {
57		−	std::cout << "\nLinking with: " << linkerInvokerName << " (invoker) / " << linkerName << " (linker)"; // GCOV_EXCL_LINE
58		−	std::cout << "\nEmitting executable to path: " << outputPath.string() << "\n"; // GCOV_EXCL_LINE
59			}
60
61			// Call the linker
62	1/2 ✓ Branch 0 (43→44) taken 187 times. ✗ Branch 1 (43→98) not taken.	187	Timer timer;
63	1/2 ✓ Branch 0 (44→45) taken 187 times. ✗ Branch 1 (44→98) not taken.	187	timer.start();
64	1/2 ✓ Branch 0 (45→46) taken 187 times. ✗ Branch 1 (45→98) not taken.	187	const std::string linkerCommand = linkerCommandBuilder.str();
65	1/2 ✓ Branch 0 (46→47) taken 187 times. ✗ Branch 1 (46→96) not taken.	187	const auto [output, exitCode] = FileUtil::exec(linkerCommand);
66	1/2 ✓ Branch 0 (47→48) taken 187 times. ✗ Branch 1 (47→94) not taken.	187	timer.stop();
67
68			// Check for linker error
69		−	if (exitCode != 0) // GCOV_EXCL_LINE
70		−	throw LinkerError(LINKER_ERROR, "Linker exited with non-zero exit code"); // GCOV_EXCL_LINE
71
72			// Print linker result if appropriate
73		−	if (cliOptions.printDebugOutput && !output.empty()) // GCOV_EXCL_LINE
74		−	std::cout << "Linking result: " << output << "\n\n"; // GCOV_EXCL_LINE
75
76			// Print link time
77		−	if (cliOptions.printDebugOutput) // GCOV_EXCL_LINE
78		−	std::cout << "Total link time: " << timer.getDurationMilliseconds() << " ms\n\n"; // GCOV_EXCL_LINE
79		187	}
80
81			/**
82			* Add another object file to be linked when calling 'link()'
83			*
84			* @param objectFilePath Path to the object file
85			*/
86		753	void ExternalLinkerInterface::addObjectFilePath(const std::string &objectFilePath) { objectFilePaths.push_back(objectFilePath); }
87
88			/**
89			* Add another linker flag for the call to the linker executable
90			*
91			* @param flag Linker flag
92			*/
93		799	void ExternalLinkerInterface::addLinkerFlag(const std::string &flag) { linkerFlags.push_back(flag); }
94
95			/**
96			* Add another source file to compile and link in (C or C++)
97			*
98			* @param additionalSource Additional source file
99			*/
100		2	void ExternalLinkerInterface::addAdditionalSourcePath(std::filesystem::path additionalSource) {
101			// Check if the file exists
102		−	if (!exists(additionalSource)) { // GCOV_EXCL_LINE
103		−	const std::string msg = "The additional source file '" + additionalSource.string() + "' does not exist"; // GCOV_EXCL_LINE
104		−	throw CompilerError(IO_ERROR, msg); // GCOV_EXCL_LINE
105		−	} // GCOV_EXCL_LINE
106
107			// Add the file to the linker
108		2	additionalSource.make_preferred();
109	2/4 ✓ Branch 0 (13→14) taken 2 times. ✗ Branch 1 (13→31) not taken. ✓ Branch 2 (14→15) taken 2 times. ✗ Branch 3 (14→29) not taken.	2	addObjectFilePath(additionalSource.string());
110		2	}
111
112			} // namespace spice::compiler
113