4 files changed, 418 insertions, 0 deletions
diff --git a/solenv/gcc-wrappers/g++.cxx b/solenv/gcc-wrappers/g++.cxx
new file mode 100644
index 000000000..6b352e64c
--- /dev/null
+++ b/solenv/gcc-wrappers/g++.cxx
@@ -0,0 +1,29 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+* This file is part of the LibreOffice project.
+*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#include "wrapper.hxx"
+
+int main(int argc, char* argv[])
+{
+    std::vector<std::string> rawargs(argv + 1, argv + argc);
+
+    std::string env_prefix; // defaults to REAL_
+    bool verbose = false;
+    std::string args = processccargs(rawargs, env_prefix, verbose);
+
+    std::string command = getexe(env_prefix + "CXX");
+    std::string flags = getexe(env_prefix + "CXX_FLAGS", true);
+    args.insert(0, flags.empty() ? std::string() : flags + " ");
+
+    setupccenv();
+
+    return startprocess(command, args, verbose);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/solenv/gcc-wrappers/gcc.cxx b/solenv/gcc-wrappers/gcc.cxx
new file mode 100644
index 000000000..05dff957e
--- /dev/null
+++ b/solenv/gcc-wrappers/gcc.cxx
@@ -0,0 +1,29 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+* This file is part of the LibreOffice project.
+*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#include "wrapper.hxx"
+
+int main(int argc, char* argv[])
+{
+    std::vector<std::string> rawargs(argv + 1, argv + argc);
+
+    std::string env_prefix; // defaults to REAL_
+    bool verbose = false;
+    std::string args = processccargs(rawargs, env_prefix, verbose);
+
+    std::string command = getexe(env_prefix + "CC");
+    std::string flags = getexe(env_prefix + "CC_FLAGS", true);
+    args.insert(0, flags.empty() ? std::string() : flags + " ");
+
+    setupccenv();
+
+    return startprocess(command, args, verbose);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/solenv/gcc-wrappers/wrapper.cxx b/solenv/gcc-wrappers/wrapper.cxx
new file mode 100644
index 000000000..c84fd4990
--- /dev/null
+++ b/solenv/gcc-wrappers/wrapper.cxx
@@ -0,0 +1,332 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+* This file is part of the LibreOffice project.
+*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#include "wrapper.hxx"
+
+#define WIN32_LEAN_AND_MEAN
+
+#include <windows.h>
+
+#define BUFLEN 2048
+
+std::string getexe(std::string exename, bool maybeempty) {
+    char* cmdbuf;
+    size_t cmdlen;
+    _dupenv_s(&cmdbuf,&cmdlen,exename.c_str());
+    if(!cmdbuf) {
+        if (maybeempty) {
+            return std::string();
+        }
+        std::cout << "Error " << exename << " not defined. Did you forget to source the environment?" << std::endl;
+        exit(1);
+    }
+    std::string command(cmdbuf);
+    free(cmdbuf);
+    return command;
+}
+
+void setupccenv() {
+    // Set-up library path
+    std::string libpath="LIB=";
+    char* libbuf;
+    size_t liblen;
+    _dupenv_s(&libbuf,&liblen,"ILIB");
+    if (libbuf == nullptr) {
+        std::cerr << "No environment variable ILIB" << std::endl;
+        std::exit(EXIT_FAILURE);
+    }
+    libpath.append(libbuf);
+    free(libbuf);
+    if(_putenv(libpath.c_str())<0) {
+        std::cerr << "Error: could not export LIB" << std::endl;
+        exit(1);
+    }
+
+    // Set-up include path
+    std::string includepath="INCLUDE=.";
+    char* incbuf;
+    size_t inclen;
+    _dupenv_s(&incbuf,&inclen,"SOLARINC");
+    if (incbuf == nullptr) {
+        std::cerr << "No environment variable SOLARINC" << std::endl;
+        std::exit(EXIT_FAILURE);
+    }
+    std::string inctmp(incbuf);
+    free(incbuf);
+
+    // 2 = strlen("-I")
+    for(size_t pos=0,len=0;pos<inctmp.length();) {
+        while (pos != inctmp.length() && inctmp[pos] == ' ') {
+            ++pos;
+        }
+        size_t endpos=inctmp.find(" -I",pos+1);
+        if(endpos==std::string::npos)
+            endpos=inctmp.length();
+        len=endpos-pos;
+
+        while(len>0&&inctmp[pos+len-1]==' ')
+            --len;
+
+        if(len>2) {
+            includepath.append(";");
+            includepath.append(inctmp,pos+2,len-2);
+        }
+        pos=endpos;
+    }
+    if(_putenv(includepath.c_str())<0) {
+        std::cerr << "Error: could not export INCLUDE" << std::endl;
+        exit(1);
+    }
+}
+
+std::string processccargs(const std::vector<std::string>& rawargs, std::string &env_prefix, bool &verbose)
+{
+    // default env var prefix
+    env_prefix = "REAL_";
+    verbose = false;
+    bool env_prefix_next_arg = false;
+
+    // suppress the msvc banner
+    std::string args=" -nologo";
+    // TODO: should these options be enabled globally?
+    args.append(" -EHsc");
+    const char *const pDebugRuntime(getenv("MSVC_USE_DEBUG_RUNTIME"));
+    if (pDebugRuntime && !strcmp(pDebugRuntime, "TRUE"))
+        args.append(" -MDd");
+    else
+        args.append(" -MD");
+    args.append(" -Gy");
+    args.append(" -Ob1 -Oxs -Oy-");
+
+    std::string linkargs;
+    bool block_linkargs = false;
+
+    // Instead of using synced PDB access (-FS), use individual PDB files based on output.
+    // In fact, simply use -Z7, which doesn't use PDB files at all and writes all debug into the .obj file.
+    const char *const pEnvIndividualPDBs(getenv("MSVC_USE_INDIVIDUAL_PDBS"));
+    const bool bIndividualPDBs = (pEnvIndividualPDBs && !strcmp(pEnvIndividualPDBs, "TRUE"));
+    const char *const pEnvEnableZ7Debug(getenv("ENABLE_Z7_DEBUG"));
+    const bool bEnableZ7Debug = (pEnvEnableZ7Debug && !strcmp(pEnvEnableZ7Debug, "TRUE")) || bIndividualPDBs;
+
+    for(std::vector<std::string>::const_iterator i = rawargs.begin(); i != rawargs.end(); ++i) {
+        if (env_prefix_next_arg)
+        {
+            env_prefix = *i;
+            env_prefix_next_arg = false;
+            continue;
+        }
+
+        args.append(" ");
+        if(*i == "-o") {
+            // TODO: handle more than just exe output
+            ++i;
+            size_t dot=(*i).find_last_of(".");
+            if(!(*i).compare(dot+1,3,"obj") || !(*i).compare(dot+1,1,"o"))
+            {
+                args.append("-Fo");
+                args.append(*i);
+            }
+            else if(!(*i).compare(dot+1,3,"exe"))
+            {
+                args.append("-Fe");
+                args.append(*i);
+            }
+            else if(!(*i).compare(dot+1,3,"dll"))
+            {   // apparently cl.exe has no flag for dll?
+                linkargs.append(" -dll -out:");
+                linkargs.append(*i);
+            }
+            else if (dot == std::string::npos)
+            {
+                args.append("-Fe");
+                args.append(*i + ".exe");
+            }
+            else
+            {
+                std::cerr << "unknown -o argument - please adapt gcc-wrapper for \""
+                     << (*i) << "\"" << std::endl;
+                exit(1);
+            }
+        }
+        else if(*i == "-g" || !(*i).compare(0,5,"-ggdb")) {
+            if(!bEnableZ7Debug)
+            {
+                args.append("-Zi");
+                args.append(" -FS");
+            }
+            else
+            {
+                // ccache doesn't work with -Zi, the -link -debug for linking will create a final PDB
+                args.append("-Z7");
+            }
+        }
+        else if(!(*i).compare(0,2,"-D")) {
+            // need to re-escape strings for preprocessor
+            std::string str = *i;
+            for(size_t pos=str.find("\""); pos!=std::string::npos; pos=str.find("\"",pos)) {
+                str.replace(pos,0,"\\");
+                pos+=2;
+            }
+            args.append(str);
+        }
+        else if(!(*i).compare(0,2,"-L")) {
+            linkargs.append(" -LIBPATH:"+(*i).substr(2));
+        }
+        else if(!(*i).compare(0,2,"-l") && (*i).compare(0,5,"-link")) {
+            linkargs.append(" "+(*i).substr(2)+".lib");
+        }
+        else if(!(*i).compare(0,5,"-def:") || !(*i).compare(0,5,"/def:")) {
+            // why are we invoked with /def:? cl.exe should handle plain
+            // "foo.def" by itself
+            linkargs.append(" " + *i);
+        }
+        else if(!(*i).compare(0,12,"-fvisibility") || *i == "-fPIC") {
+            //TODO: drop other gcc-specific options
+        }
+        else if(!(*i).compare(0,4,"-Wl,")) {
+            //TODO: drop other gcc-specific options
+        }
+        else if(*i == "-c") {
+            args.append("-c");
+            // If -c is specified, there will be no linking anyway,
+            // and passing -link with -c stops ccache from caching.
+            block_linkargs = true;
+        }
+        else if(*i == "-Werror")
+            args.append("-WX");
+        else if (*i == "--wrapper-print-cmdline")
+            verbose = true;
+        else
+        {
+            size_t pos = i->find("=");
+            if (0 == i->compare(0, pos, "--wrapper-env-prefix"))
+            {
+                if (pos == std::string::npos)
+                    env_prefix_next_arg = true;
+                else if (pos + 1 == i->length())
+                {
+                    // bailout - missing arg
+                    env_prefix_next_arg = true;
+                    break;
+                }
+                else
+                    env_prefix = i->substr(pos + 1);
+            }
+            else
+                args.append(*i);
+        }
+    }
+
+    if (env_prefix_next_arg)
+    {
+        std::cerr << "wrapper-env-prefix needs an argument!" << std::endl;
+        exit(1);
+    }
+
+    if(!block_linkargs) {
+        // apparently these must be at the end
+        // otherwise configure tests may fail
+        // note: always use -debug so a PDB file is created
+        args.append(" -link -debug ");
+        args.append(linkargs);
+    }
+
+    return args;
+}
+
+int startprocess(std::string command, std::string args, bool verbose)
+{
+    STARTUPINFO si;
+    PROCESS_INFORMATION pi;
+    SECURITY_ATTRIBUTES sa;
+
+    HANDLE childout_read;
+    HANDLE childout_write;
+
+    memset(&sa,0,sizeof(sa));
+    memset(&si,0,sizeof(si));
+    memset(&pi,0,sizeof(pi));
+
+    sa.nLength=sizeof(sa);
+    sa.bInheritHandle=TRUE;
+
+    if(!CreatePipe(&childout_read,&childout_write,&sa,0)) {
+        std::cerr << "Error: could not create stdout pipe" << std::endl;
+        exit(1);
+    }
+
+    si.cb=sizeof(si);
+    si.dwFlags |= STARTF_USESTDHANDLES;
+    si.hStdOutput=childout_write;
+    si.hStdError=childout_write;
+
+    // support ccache
+    size_t pos=command.find("ccache ");
+    size_t len = strlen("ccache ");
+    if(pos == std::string::npos) {
+        pos=command.find("ccache.exe ");
+        len = strlen("ccache.exe ");
+    }
+    if(pos != std::string::npos) {
+        args.insert(0,command.substr(pos+len));
+        command=command.substr(0,pos+len-1);
+    }
+
+    auto cmdline = "\"" + command + "\" " + args;
+
+    if (verbose)
+        std::cerr << "CMD= " << command << " " << args << std::endl;
+
+    // Commandline may be modified by CreateProcess
+    char* cmdlineBuf=_strdup(cmdline.c_str());
+
+    if(!CreateProcess(nullptr, // Process Name
+        cmdlineBuf, // Command Line
+        nullptr, // Process Handle not Inheritable
+        nullptr, // Thread Handle not Inheritable
+        TRUE, // Handles are Inherited
+        0, // No creation flags
+        nullptr, // Environment for process
+        nullptr, // Use same starting directory
+        &si, // Startup Info
+        &pi) // Process Information
+        ) {
+            auto const e = GetLastError();
+            std::cerr << "Error: could not create process \"" << cmdlineBuf << "\": " << e << std::endl;
+            exit(1);
+    }
+
+    // if you don't close this the process will hang
+    CloseHandle(childout_write);
+
+    // Get Process output
+    char buffer[BUFLEN];
+    DWORD readlen, writelen, ret;
+    HANDLE stdout_handle=GetStdHandle(STD_OUTPUT_HANDLE);
+    while(true) {
+        int success=ReadFile(childout_read,buffer,BUFLEN,&readlen,nullptr);
+        // check if the child process has exited
+        if(GetLastError()==ERROR_BROKEN_PIPE)
+            break;
+        if(!success) {
+            std::cerr << "Error: could not read from subprocess stdout" << std::endl;
+            exit(1);
+        }
+        if(readlen!=0) {
+            WriteFile(stdout_handle,buffer,readlen,&writelen,nullptr);
+        }
+    }
+    WaitForSingleObject(pi.hProcess, INFINITE);
+    GetExitCodeProcess(pi.hProcess, &ret);
+    CloseHandle(pi.hThread);
+    CloseHandle(pi.hProcess);
+    return int(ret);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/solenv/gcc-wrappers/wrapper.hxx b/solenv/gcc-wrappers/wrapper.hxx
new file mode 100644
index 000000000..d68ab90c9
--- /dev/null
+++ b/solenv/gcc-wrappers/wrapper.hxx
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+* This file is part of the LibreOffice project.
+*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#ifndef INCLUDED_SOLENV_GCC_WRAPPERS_WRAPPER_HXX
+#define INCLUDED_SOLENV_GCC_WRAPPERS_WRAPPER_HXX
+
+#include <string>
+#include <iostream>
+#include <vector>
+
+std::string getexe(std::string exename, bool maybeempty = false);
+
+void setupccenv();
+
+std::string processccargs(const std::vector<std::string>& rawargs, std::string& env_prefix,
+                          bool& verbose);
+
+int startprocess(std::string command, std::string args, bool verbose);
+
+#endif // INCLUDED_SOLENV_GCC_WRAPPERS_WRAPPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */