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Add -MD option

This commit is contained in:
Rui Ueyama 2020-08-18 12:42:46 +09:00
parent db850f37a2
commit fb5cfe5d17
2 changed files with 25 additions and 3 deletions
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15
main.c
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@ -11,6 +11,7 @@ static FileType opt_x;
static StringArray opt_include;
static bool opt_E;
static bool opt_M;
static bool opt_MD;
static bool opt_MP;
static bool opt_S;
static bool opt_c;
@ -203,6 +204,11 @@ static void parse_args(int argc, char **argv) {
continue;
}
if (!strcmp(argv[i], "-MD")) {
opt_MD = true;
continue;
}
if (!strcmp(argv[i], "-cc1-input")) {
base_file = argv[++i];
continue;
@ -360,6 +366,8 @@ static void print_dependencies(void) {
char *path;
if (opt_MF)
path = opt_MF;
else if (opt_MD)
path = replace_extn(opt_o ? opt_o : base_file, ".d");
else if (opt_o)
path = opt_o;
else
@ -422,10 +430,11 @@ static void cc1(void) {
tok = append_tokens(tok, tok2);
tok = preprocess(tok);
// If -M is given, print file dependencies.
if (opt_M) {
// If -M or -MD are given, print file dependencies.
if (opt_M || opt_MD) {
print_dependencies();
return;
if (opt_M)
return;
}
// If -E is given, print out preprocessed C code as a result.

13
test/driver.sh
View File

@ -246,4 +246,17 @@ check -MT
$chibicc -MT foo -MT bar -M -I$tmp $tmp/out.c | grep -q '^foo bar:'
check -MT
# -MD
echo '#include "out2.h"' > $tmp/md2.c
echo '#include "out3.h"' > $tmp/md3.c
(cd $tmp; $OLDPWD/$chibicc -c -MD -I. md2.c md3.c)
grep -q -z '^md2.o:.* md2\.c .* ./out2\.h' $tmp/md2.d
check -MD
grep -q -z '^md3.o:.* md3\.c .* ./out3\.h' $tmp/md3.d
check -MD
$chibicc -c -MD -MF $tmp/md-mf.d -I. $tmp/md2.c
grep -q -z '^md2.o:.*md2\.c .*/out2\.h' $tmp/md-mf.d
check -MD
echo OK