#0 sym_check_deps (sym=0xbb904c90) at scripts/kconfig/symbol.c:950
950 fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
(gdb) bt
#0 sym_check_deps (sym=0xbb904c90) at scripts/kconfig/symbol.c:950
#1 0x0804b4c2 in sym_check_expr_deps (e=0xbb5ec8e0) at scripts/kconfig/symbol.c:1007
#2 0x0804b549 in sym_check_sym_deps (sym=0xbb904c90) at scripts/kconfig/symbol.c:1032
#3 0x0804b950 in sym_check_deps (sym=0xbb904c90) at scripts/kconfig/symbol.c:1111
#4 0x0804b4c2 in sym_check_expr_deps (e=0xbb5e99a0) at scripts/kconfig/symbol.c:1007
#5 0x0804b50f in sym_check_sym_deps (sym=0xbb904d30) at scripts/kconfig/symbol.c:1024
#6 0x0804b950 in sym_check_deps (sym=0xbb904d30) at scripts/kconfig/symbol.c:1111
#7 0x0804b4c2 in sym_check_expr_deps (e=0xbb5f1840) at scripts/kconfig/symbol.c:1007
#8 0x0804b4a8 in sym_check_expr_deps (e=0xbb5f1830) at scripts/kconfig/symbol.c:994
#9 0x0804b549 in sym_check_sym_deps (sym=0xbb970240) at scripts/kconfig/symbol.c:1032
#10 0x0804b950 in sym_check_deps (sym=0xbb970240) at scripts/kconfig/symbol.c:1111
#11 0x08052e37 in conf_parse (name=0x804a09a "\203�020�\004z\005\b\205�017\205�) at scripts/kconfig/zconf.tab.c:2244
#12 0x0804a09a in main (ac=3, av=0xbfbfe004) at scripts/kconfig/conf.c:505
In this case, `stack->prop' is NULL, but it may also end-up being NULL at the
end of the loop just before. Places the check before using `prop' to catch both
cases.
This fix `scripts/kconfig/conf' segmentation fault on SH as of v2.6.36-rc2 and
allow to fix the underlying issue.
Signed-off-by: Arnaud Lacombe <lacombar@xxxxxxxxx>
---
scripts/kconfig/symbol.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index e95718f..0968f15 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -946,6 +946,13 @@ static void sym_check_print_recursive(struct symbol *last_sym)
break;
}
}
+
+ if (!prop) {
+ fprintf(stderr,
+ "unexpected recursive dependency error\n");
+ return;
+ }
+
if (stack->sym == last_sym)
fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
prop->file->name, prop->lineno);
--
1.7.2.30.gc37d7.dirty
--
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