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69 lines
2.0 KiB
69 lines
2.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright (C) 2015, Wang Nan <[email protected]> |
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* Copyright (C) 2015, Huawei Inc. |
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*/ |
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#ifndef __LLVM_UTILS_H |
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#define __LLVM_UTILS_H |
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#include <stdbool.h> |
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struct llvm_param { |
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/* Path of clang executable */ |
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const char *clang_path; |
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/* Path of llc executable */ |
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const char *llc_path; |
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/* |
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* Template of clang bpf compiling. 5 env variables |
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* can be used: |
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* $CLANG_EXEC: Path to clang. |
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* $CLANG_OPTIONS: Extra options to clang. |
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* $KERNEL_INC_OPTIONS: Kernel include directories. |
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* $WORKING_DIR: Kernel source directory. |
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* $CLANG_SOURCE: Source file to be compiled. |
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*/ |
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const char *clang_bpf_cmd_template; |
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/* Will be filled in $CLANG_OPTIONS */ |
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const char *clang_opt; |
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/* |
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* If present it'll add -emit-llvm to $CLANG_OPTIONS to pipe |
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* the clang output to llc, useful for new llvm options not |
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* yet selectable via 'clang -mllvm option', such as -mattr=dwarfris |
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* in clang 6.0/llvm 7 |
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*/ |
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const char *opts; |
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/* Where to find kbuild system */ |
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const char *kbuild_dir; |
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/* |
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* Arguments passed to make, like 'ARCH=arm' if doing cross |
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* compiling. Should not be used for dynamic compiling. |
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*/ |
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const char *kbuild_opts; |
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/* |
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* Default is false. If set to true, write compiling result |
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* to object file. |
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*/ |
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bool dump_obj; |
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/* |
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* Default is false. If one of the above fields is set by user |
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* explicitly then user_set_llvm is set to true. This is used |
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* for perf test. If user doesn't set anything in .perfconfig |
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* and clang is not found, don't trigger llvm test. |
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*/ |
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bool user_set_param; |
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}; |
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extern struct llvm_param llvm_param; |
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int perf_llvm_config(const char *var, const char *value); |
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int llvm__compile_bpf(const char *path, void **p_obj_buf, size_t *p_obj_buf_sz); |
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/* This function is for test__llvm() use only */ |
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int llvm__search_clang(void); |
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/* Following functions are reused by builtin clang support */ |
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void llvm__get_kbuild_opts(char **kbuild_dir, char **kbuild_include_opts); |
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int llvm__get_nr_cpus(void); |
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void llvm__dump_obj(const char *path, void *obj_buf, size_t size); |
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#endif
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