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gospec.c (lang_specific_driver): Add a -o option if not linking and there is no -o option already.

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* gospec.c (lang_specific_driver): Add a -o option if not linking
	and there is no -o option already.

From-SVN: r167773
This commit is contained in:
Ian Lance Taylor 2010-12-13 23:11:53 +00:00 • committed by Ian Lance Taylor
parent 3b58a10d5b
commit 6f855258dd
2 changed files with 50 additions and 0 deletions
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5
gcc/go/ChangeLog
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@ -1,3 +1,8 @@
2010-12-13 Ian Lance Taylor <iant@google.com>
* gospec.c (lang_specific_driver): Add a -o option if not linking
and there is no -o option already.
2010-12-07 Ian Lance Taylor <iant@google.com>
PR tree-optimization/46805

45
gcc/go/gospec.c
View file

@ -106,6 +106,12 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options,
/* The total number of arguments with the new stuff. */
int num_args = 1;
/* Whether the -o option was used. */
bool saw_opt_o = false;
/* The first input file with an extension of .go. */
const char *first_go_file = NULL;
argc = *in_decoded_options_count;
decoded_options = *in_decoded_options;
added_libraries = *in_added_libraries;
@ -167,6 +173,10 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options,
library = -1;
break;
case OPT_o:
saw_opt_o = true;
break;
case OPT_static:
static_link = 1;
break;
@ -183,6 +193,16 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options,
case OPT_SPECIAL_input_file:
if (library == 0)
library = 1;
if (first_go_file == NULL)
{
int len;
len = strlen (arg);
if (len > 3 && strcmp (arg + len - 3, ".go") == 0)
first_go_file = arg;
}
break;
}
}
@ -245,6 +265,31 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options,
j++;
}
/* If we are not linking, add a -o option. This is because we need
the driver to pass all .go files to go1. Without a -o option the
driver will invoke go1 separately for each input file. */
if (library < 0 && first_go_file != NULL && !saw_opt_o)
{
const char *base;
int baselen;
int alen;
char *out;
base = lbasename (first_go_file);
baselen = strlen (base) - 3;
alen = baselen + 3;
out = XNEWVEC (char, alen);
memcpy (out, base, baselen);
/* The driver will convert .o to some other suffix if
appropriate. */
out[baselen] = '.';
out[baselen + 1] = 'o';
out[baselen + 2] = '\0';
generate_option (OPT_o, out, 1, CL_DRIVER,
&new_decoded_options[j]);
j++;
}
/* Add `-lgo' if we haven't already done so. */
if (library > 0)
{