clang.h File Reference

Function headers for interacting with clang. More...

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Macros
#define	GENERATOR_PROGRAM_CONTENTS   "#include <stdio.h>\nint main(void){printf(\"\");}"
	Program used to determine platform information. More...
#define	GENERATOR_PROGRAM_CONTENTS_LENGTH   sizeof(GENERATOR_PROGRAM_CONTENTS)
	Length of GENERATOR_PROGRAM_CONTENTS. More...
#define	GENERATOR_PROGRAM_FILENAME   ".prp_platform_information_generator.c"
	Filename of GENERATOR_PROGRAM. More...
#define	GENERATOR_PROGRAM_FILENAME_LL   ".prp_platform_information_generator.ll"
	Filename of GENERATOR_PROGRAM's LLVM-compiled file. More...
#define	PURPLE_GLOBALS_PLACEHOLDER   ";<purple_globals_placeholder>"
	Placeholder in main LLVM file used when linking globals. More...
#define	PURPLE_GLOBALS_PLACEHOLDER_LEN   sizeof(PURPLE_GLOBALS_PLACEHOLDER) - 1
	Length of PURPLE_GLOBALS_PLACEHOLDER. More...

Functions
void	clang_compile_llvm (const char *fn)
	Starts up the clang compiler to compile the generated LLVM-IR into a binary. More...
void	link_globals (void)
	Link globals.ll to main LLVM file by copying the contents of each LLVM file into a temporary file, then copying back to the main LLVM file. More...
void	create_tmp_generator_program (void)
	Create a temporary file for a generator program used to determine compilation information. More...
char *	get_target_datalayout (void)
	Search through GENERATOR_PROGRAM for the target datalayout. More...
char *	get_target_triple (void)
	Get the target triple for the current target. More...
char *	get_postamble (void)
char *	regex_match (const char *regex, char *target_str, int len, int group_index)
	Simple regex parser. More...

Variables
static char	generatorProgramFullPath [512]
	Full path to GENERATOR_PROGRAM. More...
static char	generatorProgramLLFullPath [512]
	Full path to GENERATOR_PROGRAM's LLVM-compiled file. More...
static bool	generatorProgramWritten = false
	True if the generator program has been written and compiled. More...

Detailed Description

Function headers for interacting with clang.

Author

Charles Averill

Date

13-Sep-2022

Macro Definition Documentation

GENERATOR_PROGRAM_CONTENTS

#define GENERATOR_PROGRAM_CONTENTS   "#include <stdio.h>\nint main(void){printf(\"\");}"

Program used to determine platform information.

GENERATOR_PROGRAM_CONTENTS_LENGTH

#define GENERATOR_PROGRAM_CONTENTS_LENGTH   sizeof(GENERATOR_PROGRAM_CONTENTS)

Length of GENERATOR_PROGRAM_CONTENTS.

GENERATOR_PROGRAM_FILENAME

#define GENERATOR_PROGRAM_FILENAME   ".prp_platform_information_generator.c"

Filename of GENERATOR_PROGRAM.

GENERATOR_PROGRAM_FILENAME_LL

#define GENERATOR_PROGRAM_FILENAME_LL   ".prp_platform_information_generator.ll"

Filename of GENERATOR_PROGRAM's LLVM-compiled file.

PURPLE_GLOBALS_PLACEHOLDER

#define PURPLE_GLOBALS_PLACEHOLDER   ";<purple_globals_placeholder>"

Placeholder in main LLVM file used when linking globals.

PURPLE_GLOBALS_PLACEHOLDER_LEN

#define PURPLE_GLOBALS_PLACEHOLDER_LEN   sizeof(PURPLE_GLOBALS_PLACEHOLDER) - 1

Length of PURPLE_GLOBALS_PLACEHOLDER.

Function Documentation

clang_compile_llvm()

void clang_compile_llvm

(

const char *

fn

)

Starts up the clang compiler to compile the generated LLVM-IR into a binary.

Parameters

fn	Name of file to compile

create_tmp_generator_program()

void create_tmp_generator_program

(

void

)

Create a temporary file for a generator program used to determine compilation information.

get_postamble()

char * get_postamble

(

void

)

get_target_datalayout()

char * get_target_datalayout

(

void

)

Search through GENERATOR_PROGRAM for the target datalayout.

Returns

char* Pointer to target datalayout string

get_target_triple()

char * get_target_triple

(

void

)

Get the target triple for the current target.

Returns

char* Pointer to the target triple string

link_globals()

void link_globals

(

void

)

Link globals.ll to main LLVM file by copying the contents of each LLVM file into a temporary file, then copying back to the main LLVM file.

regex_match()

char * regex_match	(	const char *	regex,
		char *	target_str,
		int	len,
		int	group_index
	)

Simple regex parser.

Parameters

regex	Regular expression to compile
target_str	String to search in
len	Maximum length of the output match, if found
group_index	Index of group to match (0 for no group)

Returns

char* Pointer to the match text if match found, else NULL

Variable Documentation

generatorProgramFullPath

char generatorProgramFullPath[512]

static

Full path to GENERATOR_PROGRAM.

generatorProgramLLFullPath

char generatorProgramLLFullPath[512]

static

Full path to GENERATOR_PROGRAM's LLVM-compiled file.

generatorProgramWritten

bool generatorProgramWritten = false

static

True if the generator program has been written and compiled.