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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 10:17:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 10:17:55 -0800
commite0d272429a34ff143bfa04ee8e29dd4eed2964c7 (patch)
tree5a719135b245811b5d61ed084d7b8c1bc2e87031 /Documentation
parentd25e8dbdab203ed8b4fd0a174bb5259e35ecd87c (diff)
parent480917427b0b6ff39de55ffc81391055472e6c26 (diff)
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (28 commits) ftrace: Add function names to dangling } in function graph tracer tracing: Simplify memory recycle of trace_define_field tracing: Remove unnecessary variable in print_graph_return tracing: Fix typo of info text in trace_kprobe.c tracing: Fix typo in prof_sysexit_enable() tracing: Remove CONFIG_TRACE_POWER from kernel config tracing: Fix ftrace_event_call alignment for use with gcc 4.5 ftrace: Remove memory barriers from NMI code when not needed tracing/kprobes: Add short documentation for HAVE_REGS_AND_STACK_ACCESS_API s390: Add pt_regs register and stack access API tracing/kprobes: Make Kconfig dependencies generic tracing: Unify arch_syscall_addr() implementations tracing: Add notrace to TRACE_EVENT implementation functions ftrace: Allow to remove a single function from function graph filter tracing: Add correct/incorrect to sort keys for branch annotation output tracing: Simplify test for function_graph tracing start point tracing: Drop the tr check from the graph tracing path tracing: Add stack dump to trace_printk if stacktrace option is set tracing: Use appropriate perl constructs in recordmcount.pl tracing: optimize recordmcount.pl for offsets-handling ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/trace/ftrace-design.txt5
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/trace/ftrace-design.txt b/Documentation/trace/ftrace-design.txt
index 6a5a579126b..f1f81afee8a 100644
--- a/Documentation/trace/ftrace-design.txt
+++ b/Documentation/trace/ftrace-design.txt
@@ -238,11 +238,10 @@ HAVE_SYSCALL_TRACEPOINTS
You need very few things to get the syscalls tracing in an arch.
+- Support HAVE_ARCH_TRACEHOOK (see arch/Kconfig).
- Have a NR_syscalls variable in <asm/unistd.h> that provides the number
of syscalls supported by the arch.
-- Implement arch_syscall_addr() that resolves a syscall address from a
- syscall number.
-- Support the TIF_SYSCALL_TRACEPOINT thread flags
+- Support the TIF_SYSCALL_TRACEPOINT thread flags.
- Put the trace_sys_enter() and trace_sys_exit() tracepoints calls from ptrace
in the ptrace syscalls tracing path.
- Tag this arch as HAVE_SYSCALL_TRACEPOINTS.