diff options
| -rw-r--r-- | main.cxx | 19 |
1 files changed, 17 insertions, 2 deletions
@@ -419,10 +419,19 @@ void setup_kernel_release (systemtap_session &s, const char* kstr) } -void parse_kernel_config (systemtap_session &s) +int parse_kernel_config (systemtap_session &s) { // PR10702: pull config options string kernel_config_file = s.kernel_build_tree + "/.config"; + struct stat st; + int rc = stat(kernel_config_file.c_str(), &st); + if (rc != 0) + { + clog << "Checking \"" << kernel_config_file << "\" failed: " << strerror(errno) << endl + << "Ensure kernel development headers & makefiles are installed." << endl; + return rc; + } + ifstream kcf (kernel_config_file.c_str()); string line; while (getline (kcf, line)) @@ -438,6 +447,7 @@ void parse_kernel_config (systemtap_session &s) clog << "Parsed kernel \"" << kernel_config_file << "\", number of tuples: " << s.kernel_config.size() << endl; kcf.close(); + return 0; } /* @@ -1069,7 +1079,11 @@ main (int argc, char * const argv []) } // Now that no further changes to s.kernel_build_tree can occur, let's use it. - parse_kernel_config (s); + if (parse_kernel_config (s) != 0) + { + exit (1); + } + // Create the name of the C source file within the temporary // directory. @@ -1450,3 +1464,4 @@ pass_5: } /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ + |