scc

commit 38ab22d6380b1d1c6fa232fa2ee5ef42b4faa77d
parent 1d8b58777ed0e762dd3e79218ed951e05c5e2dff
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Fri, 22 Mar 2024 05:12:04 +0100

libmach/coff32: Don't write non allocated sections

Sections not allocated don't have bytes in the output file, thus we have
to skip them we write the data section of them.

Diffstat:
M
src/libmach/coff32/coff32write.c
 | 
7
+++++++

1 file changed, 7 insertions(+), 0 deletions(-)
diff --git a/src/libmach/coff32/coff32write.c b/src/libmach/coff32/coff32write.c
@@ -313,9 +313,16 @@ writedata(Obj *obj, Map *map, FILE *fp)
 
 	nsec = hdr->f_nscns;
 	for (scn = coff->scns; nsec--; scn++) {
+		/* TODO: check if the section is allocated */
+		if (scn->s_flags & STYP_BSS)
+			continue;
+
 		if ((id = findsec(map, scn->s_name)) < 0)
 			return 0;
 		sec = &map->sec[id];
+		if (!sec->fp)
+			return 0;
+
 		fseek(sec->fp, sec->offset, SEEK_SET);
 
 		for (n = sec->end - sec->begin; n > 0; n--)