vsprintf: Add extension %pSR - print_symbol replacement
print_symbol takes a long and converts it to a function
name and offset. %pS does something similar, but doesn't
translate the address via __builtin_extract_return_addr.
%pSR does the translation.
This will enable replacing multiple calls like
printk(...);
printk_symbol(addr);
printk("\n");
with a single non-interleavable in dmesg
printk("... %pSR\n", (void *)addr);
Update documentation too.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index e8a6aa4..e3d0215 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -17,6 +17,8 @@
%pF versatile_init+0x0/0x110
%pf versatile_init
%pS versatile_init+0x0/0x110
+ %pSR versatile_init+0x9/0x110
+ (with __builtin_extract_return_addr() translation)
%ps versatile_init
%pB prev_fn_of_versatile_init+0x88/0x88