diff options
| author |   Rabin Vincent <rabin@rab.in> | 2010-08-10 19:52:35 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-02 15:28:43 +0100 |
| commit | 72dc43a9eb123d2742bd413c80dbeab0c588f622 (patch) | |
| tree | d4a020340a00fc00497aedef1fcd8c6bd8abaad7 /arch/arm/include | |
| parent | ARM: 6318/1: ftrace: fix and update dynamic ftrace (diff) | |
| download | linux-dev-72dc43a9eb123d2742bd413c80dbeab0c588f622.tar.xz linux-dev-72dc43a9eb123d2742bd413c80dbeab0c588f622.zip | |
ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace
Handle the different nop and call instructions for Thumb-2. Also, we
need to adjust the recorded mcount_loc addresses because they have the
lsb set.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org> [recordmcount.pl change]
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/ftrace.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h index 4a56a2ee067c..f89515adac60 100644 --- a/arch/arm/include/asm/ftrace.h +++ b/arch/arm/include/asm/ftrace.h @@ -18,7 +18,8 @@ struct dyn_arch_ftrace { static inline unsigned long ftrace_call_adjust(unsigned long addr) { - return addr; + /* With Thumb-2, the recorded addresses have the lsb set */ + return addr & ~1; } extern void ftrace_caller_old(void); |