Based on linux v4.5 patch: a043934207c5eb271deeaed2e9bd019c3be92cad
scripts/link-vmlinux.sh: force error on kallsyms failure
Since the output of the invocation of scripts/kallsyms is piped directly
into the assembler, error messages it emits are visible on stderr, but
a non-zero return code is ignored, and the build simply proceeds in that
case. However, the resulting kernel is most likely broken, and will crash
at boot.
So instead, capture the output of kallsyms in a separate .S file, and pass
that to the assembler in a separate step.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Signed-off-by: Michal Marek <mmarek@xxxxxxxx>
Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
---
scripts/link-barebox.sh | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/scripts/link-barebox.sh b/scripts/link-barebox.sh
index bff2363a19d5..20375792a7f7 100755
--- a/scripts/link-barebox.sh
+++ b/scripts/link-barebox.sh
@@ -94,9 +94,10 @@ kallsyms()
local aflags="${AFLAGS} ${AFLAGS_KERNEL} \
${NOSTDINC_FLAGS} ${BAREBOXINCLUDE} ${CPPFLAGS}"
- ${NM} -n ${1} | \
- ${KALLSYMS} ${kallsymopt} | \
- ${CC} ${aflags} -c -o ${2} -x assembler-with-cpp -
+ local afile="`basename ${2} .o`.S"
+
+ ${NM} -n ${1} | ${KALLSYMS} ${kallsymopt} > ${afile}
+ ${CC} ${aflags} -c -o ${2} -x assembler-with-cpp ${afile}
}
# Create map file with all symbols from ${1}
--
2.19.2
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