mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 18:53:52 +08:00
aa61fd05ca
This patch introduces [llvm] config section with 5 options. Following
patches will use then to config llvm dynamica compiling.
'llvm-utils.[ch]' is introduced in this patch for holding all
llvm/clang related stuffs.
Example:
[llvm]
# Path to clang. If omit, search it from $PATH.
clang-path = "/path/to/clang"
# Cmdline template. Following line shows its default value.
# Environment variable is used to passing options.
#
# *NOTE*: -D__KERNEL__ MUST appears before $CLANG_OPTIONS,
# so user have a chance to use -U__KERNEL__ in $CLANG_OPTIONS
# to cancel it.
clang-bpf-cmd-template = "$CLANG_EXEC -D__KERNEL__ $CLANG_OPTIONS \
$KERNEL_INC_OPTIONS -Wno-unused-value \
-Wno-pointer-sign -working-directory \
$WORKING_DIR -c $CLANG_SOURCE -target \
bpf -O2 -o -"
# Options passed to clang, will be passed to cmdline by
# $CLANG_OPTIONS.
clang-opt = "-Wno-unused-value -Wno-pointer-sign"
# kbuild directory. If not set, use /lib/modules/`uname -r`/build.
# If set to "" deliberately, skip kernel header auto-detector.
kbuild-dir = "/path/to/kernel/build"
# Options passed to 'make' when detecting kernel header options.
kbuild-opts = "ARCH=x86_64"
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1437477214-149684-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
37 lines
979 B
C
37 lines
979 B
C
/*
|
|
* Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
|
|
* Copyright (C) 2015, Huawei Inc.
|
|
*/
|
|
#ifndef __LLVM_UTILS_H
|
|
#define __LLVM_UTILS_H
|
|
|
|
#include "debug.h"
|
|
|
|
struct llvm_param {
|
|
/* Path of clang executable */
|
|
const char *clang_path;
|
|
/*
|
|
* Template of clang bpf compiling. 5 env variables
|
|
* can be used:
|
|
* $CLANG_EXEC: Path to clang.
|
|
* $CLANG_OPTIONS: Extra options to clang.
|
|
* $KERNEL_INC_OPTIONS: Kernel include directories.
|
|
* $WORKING_DIR: Kernel source directory.
|
|
* $CLANG_SOURCE: Source file to be compiled.
|
|
*/
|
|
const char *clang_bpf_cmd_template;
|
|
/* Will be filled in $CLANG_OPTIONS */
|
|
const char *clang_opt;
|
|
/* Where to find kbuild system */
|
|
const char *kbuild_dir;
|
|
/*
|
|
* Arguments passed to make, like 'ARCH=arm' if doing cross
|
|
* compiling. Should not be used for dynamic compiling.
|
|
*/
|
|
const char *kbuild_opts;
|
|
};
|
|
|
|
extern struct llvm_param llvm_param;
|
|
extern int perf_llvm_config(const char *var, const char *value);
|
|
#endif
|