diff options
| author | Joe Perches <joe@perches.com> | 2012-12-12 10:18:50 -0800 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-04-30 22:31:16 +0200 |
| commit | b0d33c2bd77bcf2d7c9427d2361ac57fe5b33aa1 (patch) | |
| tree | 2acb72d0e39aee019cf8aecc917685b120e506a3 /Documentation/printk-formats.txt | |
| parent | 071361d3473ebb8142907470ff12d59c59f6be72 (diff) | |
| download | lwn-b0d33c2bd77bcf2d7c9427d2361ac57fe5b33aa1.tar.gz lwn-b0d33c2bd77bcf2d7c9427d2361ac57fe5b33aa1.zip | |
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>
Diffstat (limited to 'Documentation/printk-formats.txt')
| -rw-r--r-- | Documentation/printk-formats.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index e8a6aa473bab..e3d0215013da 100644 --- a/Documentation/printk-formats.txt +++ b/Documentation/printk-formats.txt @@ -17,6 +17,8 @@ Symbols/Function Pointers: %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 |