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| author |   Shaohua Li <shaohua.li@intel.com> | 2009-01-09 11:29:46 +0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-01-14 12:11:26 +0100 |
| commit | d3e75ff14bc1453c4762428395aac9953a023efc (patch) | |
| tree | b25ec02c30da77257ab02b232b932308260e83ba /arch/ia64/kernel/ia64_ksyms.c | |
| parent | ftrace, ia64: Add recordmcount for ia64 (diff) | |
| download | linux-dev-d3e75ff14bc1453c4762428395aac9953a023efc.tar.xz linux-dev-d3e75ff14bc1453c4762428395aac9953a023efc.zip | |
ftrace, ia64: IA64 static ftrace support
IA64 ftrace suppport. In IA64, below code will be added in each function
if -pg is enabled.
alloc r40=ar.pfs,12,8,0
mov r43=r0;;
mov r42=b0
mov r41=r1
nop.i 0x0
br.call.sptk.many b0 = _mcount;;
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/ia64/kernel/ia64_ksyms.c')
| -rw-r--r-- | arch/ia64/kernel/ia64_ksyms.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index 6da1f20d7372..2d311864e359 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -112,3 +112,9 @@ EXPORT_SYMBOL_GPL(esi_call_phys); #endif extern char ia64_ivt[]; EXPORT_SYMBOL(ia64_ivt); + +#include <asm/ftrace.h> +#ifdef CONFIG_FUNCTION_TRACER +/* mcount is defined in assembly */ +EXPORT_SYMBOL(_mcount); +#endif |