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-rwxr-xr-xpayloads/libpayload/bin/lpgcc9
1 files changed, 7 insertions, 2 deletions
diff --git a/payloads/libpayload/bin/lpgcc b/payloads/libpayload/bin/lpgcc
index da8b481155..691ec15f43 100755
--- a/payloads/libpayload/bin/lpgcc
+++ b/payloads/libpayload/bin/lpgcc
@@ -101,8 +101,13 @@ if [ $DOLINK -eq 0 ]; then
else
_LIBGCC=`$DEFAULT_CC -m32 -print-libgcc-file-name`
if [ $DEBUGME -eq 1 ]; then
- echo "$DEFAULT_CC $_CFLAGS $_LDFLAGS $CMDLINE $_LIBDIR/i386/head.o $_LIBDIR/libpayload.a $_LIBGCC"
+ echo "$DEFAULT_CC $_CFLAGS $_LDFLAGS $_LIBDIR/i386/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC"
fi
- $DEFAULT_CC $_CFLAGS $_LDFLAGS $CMDLINE $_LIBDIR/i386/head.o $_LIBDIR/libpayload.a $_LIBGCC
+ # Note: i386/head.o must be the first object being linked, because it
+ # contains a Multiboot header. The Multiboot standard requires this
+ # header to be placed below 0x2000 in the resulting image. See:
+ # http://www.gnu.org/software/grub/manual/multiboot/html_node/OS-image-format.html
+
+ $DEFAULT_CC $_CFLAGS $_LDFLAGS $_LIBDIR/i386/head.o $CMDLINE $_LIBDIR/libpayload.a $_LIBGCC
fi