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A bunch of LibC boilerplate stuff added while trying to get figlet to build.

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This commit is contained in:
Andreas Kling 2018-10-31 02:09:11 +01:00
parent 511ed4c4de
commit bb90c8ecab
23 changed files with 117 additions and 45 deletions
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2
LibC/Makefile
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@ -23,7 +23,7 @@ OBJS = $(AK_OBJS) $(LIBC_OBJS)
LIBRARY = LibC.a LIBRARY = LibC.a
ARCH_FLAGS = ARCH_FLAGS =
STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib -nostdinc
LIBC_FLAGS = -ffreestanding -fno-stack-protector -fno-ident LIBC_FLAGS = -ffreestanding -fno-stack-protector -fno-ident
WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings
FLAVOR_FLAGS = -fomit-frame-pointer -mregparm=3 -march=i386 -m32 -fno-exceptions -fno-rtti -ffunction-sections -fdata-sections -fmerge-all-constants -fno-unroll-loops -falign-functions=1 -falign-jumps=1 -falign-loops=1 -fno-pie -fno-pic FLAVOR_FLAGS = -fomit-frame-pointer -mregparm=3 -march=i386 -m32 -fno-exceptions -fno-rtti -ffunction-sections -fdata-sections -fmerge-all-constants -fno-unroll-loops -falign-functions=1 -falign-jumps=1 -falign-loops=1 -fno-pie -fno-pic

6
LibC/assert.h
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@ -1,6 +1,8 @@
#pragma once #pragma once
extern "C" { #include <sys/cdefs.h>
__BEGIN_DECLS
void __assertion_failed(const char* msg, const char* file, unsigned line, const char* func); void __assertion_failed(const char* msg, const char* file, unsigned line, const char* func);
@ -10,5 +12,5 @@ void __assertion_failed(const char* msg, const char* file, unsigned line, const
#define RELEASE_ASSERT assert #define RELEASE_ASSERT assert
#define ASSERT_NOT_REACHED() assert(false) #define ASSERT_NOT_REACHED() assert(false)
} __END_DECLS

4
LibC/ctype.h Normal file
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@ -0,0 +1,4 @@
#pragma once
#define isascii(c) (((c) & ~0x7f) == 0)

7
LibC/dirent.h
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@ -1,8 +1,9 @@
#pragma once #pragma once
#include "types.h" #include <sys/cdefs.h>
#include <sys/types.h>
extern "C" { __BEGIN_DECLS
struct dirent { struct dirent {
ino_t d_ino; ino_t d_ino;
@ -23,5 +24,5 @@ struct DIR {
DIR* opendir(const char* name); DIR* opendir(const char* name);
dirent* readdir(DIR* dirp); dirent* readdir(DIR* dirp);
} __END_DECLS

15
LibC/entry.cpp
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@ -1,14 +1,29 @@
#include <stdio.h>
#include <Kernel/Syscall.h> #include <Kernel/Syscall.h>
#include <AK/StringImpl.h> #include <AK/StringImpl.h>
extern "C" int main(int, char**); extern "C" int main(int, char**);
FILE __default_streams[3];
int errno; int errno;
FILE* stdin;
FILE* stdout;
FILE* stderr;
extern "C" int _start() extern "C" int _start()
{ {
errno = 0; errno = 0;
__default_streams[0].fd = 0;
stdin = &__default_streams[0];
__default_streams[1].fd = 1;
stdout = &__default_streams[1];
__default_streams[2].fd = 2;
stderr = &__default_streams[2];
StringImpl::initializeGlobals(); StringImpl::initializeGlobals();
int argc; int argc;

5
LibC/errno.h
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@ -1,5 +1,6 @@
#pragma once #pragma once
#include <sys/cdefs.h>
#include <Kernel/errno.h> #include <Kernel/errno.h>
#define __RETURN_WITH_ERRNO(rc, good_ret, bad_ret) \ #define __RETURN_WITH_ERRNO(rc, good_ret, bad_ret) \
@ -13,9 +14,9 @@
} \ } \
} while(0) } while(0)
extern "C" { __BEGIN_DECLS
extern int errno; extern int errno;
}; __END_DECLS

0
LibC/fcntl.h Normal file
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8
LibC/mman.h
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@ -1,11 +1,13 @@
#pragma once #pragma once
#include "types.h" #include <sys/cdefs.h>
#include <sys/types.h>
extern "C" { __BEGIN_DECLS
void* mmap(void*, size_t); void* mmap(void*, size_t);
int munmap(void*, size_t); int munmap(void*, size_t);
int set_mmap_name(void*, size_t, const char*); int set_mmap_name(void*, size_t, const char*);
} __END_DECLS

6
LibC/process.h
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@ -1,8 +1,10 @@
#pragma once #pragma once
extern "C" { #include <sys/cdefs.h>
__BEGIN_DECLS
int spawn(const char* path, const char** args); int spawn(const char* path, const char** args);
} __END_DECLS

6
LibC/signal.h
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@ -1,8 +1,8 @@
#pragma once #pragma once
#include "types.h" #include <sys/types.h>
extern "C" { __BEGIN_DECLS
int kill(pid_t, int sig); int kill(pid_t, int sig);
@ -22,5 +22,5 @@ int kill(pid_t, int sig);
#define SIGALRM 14 #define SIGALRM 14
#define SIGTERM 15 #define SIGTERM 15
} __END_DECLS

6
LibC/stdarg.h
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@ -1,6 +1,8 @@
#pragma once #pragma once
extern "C" { #include <sys/cdefs.h>
__BEGIN_DECLS
typedef char* va_list; typedef char* va_list;
@ -8,5 +10,5 @@ typedef char* va_list;
#define va_arg(ap, t) ((t*)(ap += sizeof(t)))[-1] #define va_arg(ap, t) ((t*)(ap += sizeof(t)))[-1]
#define va_end(ap) ap = nullptr #define va_end(ap) ap = nullptr
} __END_DECLS

12
LibC/stdio.cpp
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@ -1,9 +1,9 @@
#include "stdio.h" #include <stdio.h>
#include "stdarg.h" #include <stdarg.h>
#include "types.h" #include <sys/types.h>
#include "string.h" #include <string.h>
#include "errno.h" #include <errno.h>
#include "unistd.h" #include <unistd.h>
#include <Kernel/Syscall.h> #include <Kernel/Syscall.h>
#include <AK/printf.cpp> #include <AK/printf.cpp>

21
LibC/stdio.h
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@ -1,11 +1,28 @@
#pragma once #pragma once
extern "C" { #include <sys/cdefs.h>
__BEGIN_DECLS
#ifndef EOF
#define EOF (-1)
#endif
struct __STDIO_FILE {
int fd;
};
typedef struct __STDIO_FILE FILE;
extern FILE* stdin;
extern FILE* stdout;
extern FILE* stderr;
int fprintf(FILE*, const char* fmt, ...);
int printf(const char* fmt, ...); int printf(const char* fmt, ...);
int sprintf(char* buffer, const char* fmt, ...); int sprintf(char* buffer, const char* fmt, ...);
int putchar(int ch); int putchar(int ch);
void perror(const char*); void perror(const char*);
} __END_DECLS

7
LibC/stdlib.h
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@ -1,8 +1,9 @@
#pragma once #pragma once
#include "types.h" #include <sys/cdefs.h>
#include <sys/types.h>
extern "C" { __BEGIN_DECLS
void* malloc(size_t); void* malloc(size_t);
void free(void*); void free(void*);
@ -12,5 +13,5 @@ void* realloc(void *ptr, size_t);
void exit(int status); void exit(int status);
void abort(); void abort();
} __END_DECLS

7
LibC/string.h
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@ -1,8 +1,9 @@
#pragma once #pragma once
#include "types.h" #include <sys/cdefs.h>
#include <sys/types.h>
extern "C" { __BEGIN_DECLS
size_t strlen(const char*); size_t strlen(const char*);
int strcmp(const char*, const char*); int strcmp(const char*, const char*);
@ -10,5 +11,5 @@ int memcmp(const void*, const void*, size_t);
void memcpy(void*, const void*, size_t); void memcpy(void*, const void*, size_t);
const char* strerror(int errnum); const char* strerror(int errnum);
} __END_DECLS

10
LibC/sys/cdefs.h Normal file
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@ -0,0 +1,10 @@
#pragma once
#ifdef __cplusplus
#define __BEGIN_DECLS extern "C" {
#define __END_DECLS }
#else
#define __BEGIN_DECLS
#define __END_DECLS
#endif

0
LibC/sys/ioctl.h Normal file
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0
LibC/sys/stat.h Normal file
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12
LibC/types.h → LibC/sys/types.h
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@ -1,6 +1,8 @@
#pragma once #pragma once
extern "C" { #include <sys/cdefs.h>
__BEGIN_DECLS
typedef unsigned int dword; typedef unsigned int dword;
typedef unsigned short word; typedef unsigned short word;
@ -49,5 +51,11 @@ struct stat {
time_t st_ctime; /* time of last status change */ time_t st_ctime; /* time of last status change */
}; };
} #ifdef __cplusplus
#define NULL nullptr
#else
#define NULL 0
#endif
__END_DECLS

7
LibC/time.h
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@ -1,11 +1,12 @@
#pragma once #pragma once
#include "types.h" #include <sys/cdefs.h>
#include <sys/types.h>
extern "C" { __BEGIN_DECLS
int gettimeofday(timeval*); int gettimeofday(timeval*);
time_t time(time_t*); time_t time(time_t*);
} __END_DECLS

10
LibC/unistd.h
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@ -1,8 +1,9 @@
#pragma once #pragma once
#include "types.h" #include <sys/cdefs.h>
#include <sys/types.h>
extern "C" { __BEGIN_DECLS
uid_t getuid(); uid_t getuid();
gid_t getgid(); gid_t getgid();
@ -14,7 +15,7 @@ int close(int fd);
pid_t waitpid(pid_t, int* wstatus, int options); pid_t waitpid(pid_t, int* wstatus, int options);
int chdir(const char* path); int chdir(const char* path);
char* getcwd(char* buffer, size_t size); char* getcwd(char* buffer, size_t size);
int lstat(const char* path, stat* statbuf); int lstat(const char* path, struct stat* statbuf);
int sleep(unsigned seconds); int sleep(unsigned seconds);
int gethostname(char*, size_t); int gethostname(char*, size_t);
ssize_t readlink(const char* path, char* buffer, size_t); ssize_t readlink(const char* path, char* buffer, size_t);
@ -62,4 +63,5 @@ int ttyname_r(int fd, char* buffer, size_t);
#define O_DIRECTORY 00200000 #define O_DIRECTORY 00200000
#define O_NOFOLLOW 00400000 #define O_NOFOLLOW 00400000
} __END_DECLS

7
LibC/utsname.h
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@ -1,8 +1,10 @@
#pragma once #pragma once
#include <sys/cdefs.h>
#define UTSNAME_ENTRY_LEN 65 #define UTSNAME_ENTRY_LEN 65
extern "C" { __BEGIN_DECLS
struct utsname { struct utsname {
char sysname[UTSNAME_ENTRY_LEN]; char sysname[UTSNAME_ENTRY_LEN];
@ -14,4 +16,5 @@ struct utsname {
int uname(struct utsname*); int uname(struct utsname*);
} __END_DECLS

4
Userland/Makefile
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@ -35,12 +35,12 @@ APPS = \
kill kill
ARCH_FLAGS = ARCH_FLAGS =
STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib -nostdinc
USERLAND_FLAGS = -ffreestanding -fno-stack-protector -fno-ident USERLAND_FLAGS = -ffreestanding -fno-stack-protector -fno-ident
WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings
FLAVOR_FLAGS = -march=i386 -mregparm=3 -m32 -fno-exceptions -fno-rtti -fmerge-all-constants -fno-unroll-loops -fno-pie -fno-pic FLAVOR_FLAGS = -march=i386 -mregparm=3 -m32 -fno-exceptions -fno-rtti -fmerge-all-constants -fno-unroll-loops -fno-pie -fno-pic
OPTIMIZATION_FLAGS = -Os -fno-asynchronous-unwind-tables OPTIMIZATION_FLAGS = -Os -fno-asynchronous-unwind-tables
INCLUDE_FLAGS = -I.. -I. INCLUDE_FLAGS = -I.. -I. -I../LibC
DEFINES = -DSERENITY -DSANITIZE_PTRS -DUSERLAND DEFINES = -DSERENITY -DSANITIZE_PTRS -DUSERLAND