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Allowing an input filename on the command line makes debuggers happy. (Then we

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don't need to redirect stdin.)
This commit is contained in:
David Given 2016-10-05 23:24:29 +02:00
parent 88fb231d6e
commit d95c75dfd7
1 changed files with 8 additions and 3 deletions
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11
mach/proto/mcg/main.c
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@ -32,6 +32,8 @@ static bool find_procedures_cb(struct symbol* symbol, void* user)
int main(int argc, char* const argv[]) int main(int argc, char* const argv[])
{ {
const char* inputfile = NULL;
program_name = argv[0]; program_name = argv[0];
opterr = 1; opterr = 1;
@ -48,14 +50,17 @@ int main(int argc, char* const argv[])
break; break;
case 1: case 1:
fatal("unexpected argument '%s'", optarg); if (inputfile)
fatal("unexpected argument '%s'", optarg);
inputfile = optarg;
} }
} }
symbol_init(); symbol_init();
if (!EM_open(NULL)) if (!EM_open(inputfile))
fatal("couldn't open stdin: %s", EM_error); fatal("couldn't open '%s': %s",
inputfile ? inputfile : "<stdin>", EM_error);
/* Reads in the EM, outputs the data sections, parses any code and /* Reads in the EM, outputs the data sections, parses any code and
* generates IR trees. */ * generates IR trees. */