Guards against errors that are hard to track down:
- if crt0s is empty (eg. because crt0-y is still used),
break the build, and say where that behaviour changed
- if a stage is unusable for cbfstool because it's placed
outside the ROM space (linked to 0 is somewhat notorious),
warn about it, give some hints and exit instead of crashing.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stefan.reinauer@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5077 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/util/cbfstool/cbfs-mkstage.c b/util/cbfstool/cbfs-mkstage.c
index 6e8daef..2f81da07 100644
--- a/util/cbfstool/cbfs-mkstage.c
+++ b/util/cbfstool/cbfs-mkstage.c
@@ -126,6 +126,11 @@
data_start = *location;
}
+ if (data_end <= data_start) {
+ fprintf(stderr, "E: data ends before it starts. Make sure the ELF file is correct and resides in ROM space.\n");
+ exit(1);
+ }
+
/* allocate an intermediate buffer for the data */
buffer = calloc(data_end - data_start, 1);