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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 07:26:15 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 07:26:15 +0000 |
| commit | c72e01b9ea891fa5cbbbe9876bdfb49079b55be7 (patch) | |
| tree | 44c55a81a281a6c211745c0abc68352aeaf0180f /scripts/features.mk | |
| parent | Initial commit. (diff) | |
| download | libtracefs-803ed2a4230ec919f62a7b6fee2f054699f753a7.tar.xz libtracefs-803ed2a4230ec919f62a7b6fee2f054699f753a7.zip | |
Adding upstream version 1.6.4.upstream/1.6.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'scripts/features.mk')
| -rw-r--r-- | scripts/features.mk | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/scripts/features.mk b/scripts/features.mk new file mode 100644 index 0000000..9c7f8c3 --- /dev/null +++ b/scripts/features.mk @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 + +# 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 |