LCOV - code coverage report
Current view: top level - gcc - pex.cc (source / functions) Coverage Total Hit
Test: gcc.info Lines: 96.4 % 28 27
Test Date: 2025-07-26 09:32:30 Functions: 100.0 % 3 3
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: - 0 0

             Branch data     Line data    Source code
       1                 :             : /* C++ wrapper around libiberty's pex API.
       2                 :             :    Copyright (C) 2025 Free Software Foundation, Inc.
       3                 :             :    Contributed by David Malcolm <dmalcolm@redhat.com>.
       4                 :             : 
       5                 :             : This file is part of GCC.
       6                 :             : 
       7                 :             : GCC is free software; you can redistribute it and/or modify it
       8                 :             : under the terms of the GNU General Public License as published by
       9                 :             : the Free Software Foundation; either version 3, or (at your option)
      10                 :             : any later version.
      11                 :             : 
      12                 :             : GCC is distributed in the hope that it will be useful, but
      13                 :             : WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :             : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :             : General Public License for more details.
      16                 :             : 
      17                 :             : You should have received a copy of the GNU General Public License
      18                 :             : along with GCC; see the file COPYING3.  If not see
      19                 :             : <http://www.gnu.org/licenses/>.  */
      20                 :             : 
      21                 :             : #define INCLUDE_STRING
      22                 :             : #define INCLUDE_VECTOR
      23                 :             : #include "config.h"
      24                 :             : #include "system.h"
      25                 :             : #include "coretypes.h"
      26                 :             : #include "pex.h"
      27                 :             : 
      28                 :             : /* Read the contents of FILE into memory, or return nullptr
      29                 :             :    if there are any problems.  */
      30                 :             : 
      31                 :             : static std::unique_ptr<std::vector<char>>
      32                 :           4 : read_all_of_file (FILE *f_in)
      33                 :             : {
      34                 :             :   /* Read content, allocating a buffer for it.  */
      35                 :           4 :   auto result = std::make_unique<std::vector<char>> ();
      36                 :           4 :   char buf[4096];
      37                 :           4 :   size_t iter_sz_in;
      38                 :             : 
      39                 :          82 :   while ( (iter_sz_in = fread (buf, 1, sizeof (buf), f_in)) )
      40                 :             :     {
      41                 :          74 :       size_t old_total_sz = result->size ();
      42                 :          74 :       size_t new_total_sz = old_total_sz + iter_sz_in;
      43                 :          74 :       size_t old_alloc_sz = result->capacity ();
      44                 :          74 :       if (new_total_sz > old_alloc_sz)
      45                 :             :         {
      46                 :          12 :           size_t new_alloc_sz = std::max (old_alloc_sz * 2, new_total_sz);
      47                 :          12 :           result->reserve (new_alloc_sz);
      48                 :             :         }
      49                 :          74 :       gcc_assert (result->capacity () >= new_total_sz);
      50                 :          74 :       result->resize (new_total_sz);
      51                 :          74 :       memcpy (result->data () + old_total_sz, buf, iter_sz_in);
      52                 :             :     }
      53                 :             : 
      54                 :           4 :   if (!feof (f_in))
      55                 :           0 :     return nullptr;
      56                 :             : 
      57                 :           4 :   return result;
      58                 :           4 : }
      59                 :             : 
      60                 :             : // struct file_wrapper
      61                 :             : 
      62                 :             : std::unique_ptr<std::vector<char>>
      63                 :           4 : file_wrapper::read_all ()
      64                 :             : {
      65                 :           4 :   return read_all_of_file (m_file);
      66                 :             : }
      67                 :             : 
      68                 :             : // struct pex
      69                 :             : 
      70                 :             : const char *
      71                 :           4 : pex::run (int flags, const char *executable, const std::vector<std::string> &args,
      72                 :             :           const char *outname, const char *errname, int *err)
      73                 :             : {
      74                 :           4 :   std::vector<char *> argv;
      75                 :          12 :   for (auto &iter : args)
      76                 :           8 :     argv.push_back (const_cast<char *> (iter.c_str ()));
      77                 :           4 :   argv.push_back (nullptr);
      78                 :           4 :   return pex_run (m_obj, flags, executable, argv.data (),
      79                 :           4 :                   outname, errname, err);
      80                 :           4 : }
        

Generated by: LCOV version 2.1-beta

LCOV profile is generated on x86_64 machine using following configure options: configure --disable-bootstrap --enable-coverage=opt --enable-languages=c,c++,fortran,go,jit,lto,rust,m2 --enable-host-shared. GCC test suite is run with the built compiler.