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authorJames Hogan <james@albanarts.com>2012-09-06 22:11:25 +0100
committerBob Liu <lliubbo@gmail.com>2012-09-11 10:25:12 +0800
commit6895f97e15895625e03c95df904d92befdac7118 (patch)
treebf5a5902426ef3073e1d8812d5fdb3f93a888398 /scripts/link-vmlinux.sh
parent50888469bda11bcff306893bbaff21f25894be0b (diff)
downloadleg-kernel-6895f97e15895625e03c95df904d92befdac7118.tar.gz
kbuild: add symbol prefix arg to kallsyms
Commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123 ("kbuild: link of vmlinux moved to a script") introduced in v3.5-rc1 broke kallsyms on architectures which have symbol prefixes. The --symbol-prefix argument used to be added to the KALLSYMS command line from the architecture Makefile, however this isn't picked up by the new scripts/link-vmlinux.sh. This resulted in symbols like kallsyms_addresses being added which weren't correctly overriding the weak symbols such as _kallsyms_addresses. These could then trigger BUG_ONs in kallsyms code. This is fixed by removing the KALLSYMS addition from the architecture Makefile, and using CONFIG_SYMBOL_PREFIX in the link-vmlinux.sh script to determine whether to add the --symbol-prefix argument. Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'scripts/link-vmlinux.sh')
-rw-r--r--scripts/link-vmlinux.sh7
1 files changed, 6 insertions, 1 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 4629038c9e5a..df48dda8a2da 100644
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -74,8 +74,13 @@ kallsyms()
info KSYM ${2}
local kallsymopt;
+ if [ -n "${CONFIG_SYMBOL_PREFIX}" ]; then
+ kallsymopt="${kallsymopt} \
+ --symbol-prefix=${CONFIG_SYMBOL_PREFIX}"
+ fi
+
if [ -n "${CONFIG_KALLSYMS_ALL}" ]; then
- kallsymopt=--all-symbols
+ kallsymopt="${kallsymopt} --all-symbols"
fi
local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL} \