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-rw-r--r--scripts/kconfig/expr.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index edd3f39..d83f232 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -1097,9 +1097,32 @@ void expr_fprint(struct expr *e, FILE *out)
static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str)
{
- str_append((struct gstr*)data, str);
+ struct gstr *gs = (struct gstr*)data;
+ const char *sym_str = NULL;
+
+ if (sym)
+ sym_str = sym_get_string_value(sym);
+
+ if (gs->max_width) {
+ unsigned extra_length = strlen(str);
+ const char *last_cr = strrchr(gs->s, '\n');
+ unsigned last_line_length;
+
+ if (sym_str)
+ extra_length += 4 + strlen(sym_str);
+
+ if (!last_cr)
+ last_cr = gs->s;
+
+ last_line_length = strlen(gs->s) - (last_cr - gs->s);
+
+ if ((last_line_length + extra_length) > gs->max_width)
+ str_append(gs, "\\\n");
+ }
+
+ str_append(gs, str);
if (sym)
- str_printf((struct gstr*)data, " [=%s]", sym_get_string_value(sym));
+ str_printf(gs, " [=%s]", sym_str);
}
void expr_gstr_print(struct expr *e, struct gstr *gs)

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