diff options
author | Rusty Russell <rusty@rustcorp.com.au> | 2013-03-15 00:34:17 -0400 |
---|---|---|
committer | Rusty Russell <rusty@rustcorp.com.au> | 2013-03-15 00:39:43 -0400 |
commit | b92021b09df70c1609e3547f3d6128dd560be97f (patch) | |
tree | 0203752a738c71718f5141b84f5143d1dc8b431d /scripts/link-vmlinux.sh | |
parent | 4febd95a8a85dd38b1a71fcf9726e19c7fd20039 (diff) |
CONFIG_SYMBOL_PREFIX: cleanup.
We have CONFIG_SYMBOL_PREFIX, which three archs define to the string
"_". But Al Viro broke this in "consolidate cond_syscall and
SYSCALL_ALIAS declarations" (in linux-next), and he's not the first to
do so.
Using CONFIG_SYMBOL_PREFIX is awkward, since we usually just want to
prefix it so something. So various places define helpers which are
defined to nothing if CONFIG_SYMBOL_PREFIX isn't set:
1) include/asm-generic/unistd.h defines __SYMBOL_PREFIX.
2) include/asm-generic/vmlinux.lds.h defines VMLINUX_SYMBOL(sym)
3) include/linux/export.h defines MODULE_SYMBOL_PREFIX.
4) include/linux/kernel.h defines SYMBOL_PREFIX (which differs from #7)
5) kernel/modsign_certificate.S defines ASM_SYMBOL(sym)
6) scripts/modpost.c defines MODULE_SYMBOL_PREFIX
7) scripts/Makefile.lib defines SYMBOL_PREFIX on the commandline if
CONFIG_SYMBOL_PREFIX is set, so that we have a non-string version
for pasting.
(arch/h8300/include/asm/linkage.h defines SYMBOL_NAME(), too).
Let's solve this properly:
1) No more generic prefix, just CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX.
2) Make linux/export.h usable from asm.
3) Define VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR().
4) Make everyone use them.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Tested-by: James Hogan <james.hogan@imgtec.com> (metag)
Diffstat (limited to 'scripts/link-vmlinux.sh')
-rw-r--r-- | scripts/link-vmlinux.sh | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 3d569d6022c2..014994936b1c 100644 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh | |||
@@ -74,9 +74,8 @@ kallsyms() | |||
74 | info KSYM ${2} | 74 | info KSYM ${2} |
75 | local kallsymopt; | 75 | local kallsymopt; |
76 | 76 | ||
77 | if [ -n "${CONFIG_SYMBOL_PREFIX}" ]; then | 77 | if [ -n "${CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX}" ]; then |
78 | kallsymopt="${kallsymopt} \ | 78 | kallsymopt="${kallsymopt} --symbol-prefix=_" |
79 | --symbol-prefix=${CONFIG_SYMBOL_PREFIX}" | ||
80 | fi | 79 | fi |
81 | 80 | ||
82 | if [ -n "${CONFIG_KALLSYMS_ALL}" ]; then | 81 | if [ -n "${CONFIG_KALLSYMS_ALL}" ]; then |