diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-12-08 16:54:05 -0500 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-12-09 17:44:45 -0500 |
| commit | 090c71b5896b9b58c9f62ca0fe8f0aecb964d4b5 (patch) | |
| tree | ccce91506e08fb938607defb4362999540fffd6e /scripts | |
| parent | 2c25dc804b99e487438e59b22ea9cc18c1226bfc (diff) | |
| download | libtracefs-090c71b5896b9b58c9f62ca0fe8f0aecb964d4b5.tar.gz | |
libtracefs: Move features.mk into scripts directory
In order to clean up the directory structure, move the features.mk into the
scripts directory. That's where the helper files for the Makefile should
live anyway.
Link: https://lore.kernel.org/linux-trace-devel/20201208215504.294115386@goodmis.org
Acked-by: Tzvetomir (VMware) Stoyanov <tz.stoyanov@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/features.mk | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/scripts/features.mk b/scripts/features.mk new file mode 100644 index 0000000..cb2e8bd --- /dev/null +++ b/scripts/features.mk @@ -0,0 +1,36 @@ + +# taken from perf which was based on Linux Kbuild +# try-cc +# Usage: option = $(call try-cc, source-to-build, cc-options) +try-cc = $(shell sh -c \ + 'TMP="$(BUILD_OUTPUT)$(TMPOUT).$$$$"; \ + echo "$(1)" | \ + $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ + rm -f "$$TMP"') + +define SOURCE_PTRACE +#include <stdio.h> +#include <sys/ptrace.h> + +int main (void) +{ + int ret; + ret = ptrace(PTRACE_ATTACH, 0, NULL, 0); + ptrace(PTRACE_TRACEME, 0, NULL, 0); + ptrace(PTRACE_GETSIGINFO, 0, NULL, NULL); + ptrace(PTRACE_GETEVENTMSG, 0, NULL, NULL); + ptrace(PTRACE_SETOPTIONS, NULL, NULL, + PTRACE_O_TRACEFORK | + PTRACE_O_TRACEVFORK | + PTRACE_O_TRACECLONE | + PTRACE_O_TRACEEXIT); + ptrace(PTRACE_CONT, NULL, NULL, 0); + ptrace(PTRACE_DETACH, 0, NULL, NULL); + ptrace(PTRACE_SETOPTIONS, 0, NULL, + PTRACE_O_TRACEFORK | + PTRACE_O_TRACEVFORK | + PTRACE_O_TRACECLONE | + PTRACE_O_TRACEEXIT); + return ret; +} +endef |