conclusion

7 files changed, 257 insertions, 0 deletions

diff --git a/05/musl-0.6.0/src/internal/futex.h b/05/musl-0.6.0/src/internal/futex.h
new file mode 100644
index 0000000..c045382
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/futex.h
@@ -0,0 +1,16 @@
+#ifndef _INTERNAL_FUTEX_H
+#define _INTERNAL_FUTEX_H
+
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+#define FUTEX_FD		2
+#define FUTEX_REQUEUE		3
+#define FUTEX_CMP_REQUEUE	4
+#define FUTEX_WAKE_OP		5
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
+
+int __futex(volatile int *, int, int, void *);
+
+#endif
diff --git a/05/musl-0.6.0/src/internal/libc.c b/05/musl-0.6.0/src/internal/libc.c
new file mode 100644
index 0000000..5e8e9d9
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/libc.c
@@ -0,0 +1,3 @@
+#include "libc.h"
+
+struct libc libc;
diff --git a/05/musl-0.6.0/src/internal/libc.h b/05/musl-0.6.0/src/internal/libc.h
new file mode 100644
index 0000000..e353f36
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/libc.h
@@ -0,0 +1,43 @@
+#ifndef LIBC_H
+#define LIBC_H
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#define libc __libc
+extern struct libc {
+	void (*lock)(volatile int *);
+	void (*cancelpt)(int);
+	int (*atexit)(void (*)(void));
+	void (*fini)(void);
+	void (*ldso_fini)(void);
+	int *(*errno_location)(void);
+	volatile int threads_minus_1;
+	int (*rsyscall)(int, long, long, long, long, long, long);
+	void (**tsd_keys)(void *);
+} libc;
+
+
+/* Designed to avoid any overhead in non-threaded processes */
+void __lock(volatile int *);
+#define LOCK(x) (libc.threads_minus_1 ? (__lock(x),1) : ((void)(x),1))
+#define UNLOCK(x) (*(x)=0)
+#define CANCELPT(x) (libc.cancelpt ? libc.cancelpt((x)),0 : (void)(x),0)
+#define CANCELPT_BEGIN CANCELPT(1)
+#define CANCELPT_END CANCELPT(0)
+
+extern char **__environ;
+#define environ __environ
+
+#undef weak_alias
+#define weak_alias(old, new) \
+	extern __typeof(old) new __attribute__((weak, alias(#old)))
+
+#undef LFS64_2
+//#define LFS64_2(x, y) weak_alias(x, y)
+#define LFS64_2(x, y) extern __typeof(x) y
+
+#undef LFS64
+#define LFS64(x) LFS64_2(x, x##64)
+
+#endif
diff --git a/05/musl-0.6.0/src/internal/locale_impl.h b/05/musl-0.6.0/src/internal/locale_impl.h
new file mode 100644
index 0000000..c268124
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/locale_impl.h
@@ -0,0 +1,5 @@
+#include <locale.h>
+
+struct __locale {
+	int dummy;
+};
diff --git a/05/musl-0.6.0/src/internal/pthread_impl.h b/05/musl-0.6.0/src/internal/pthread_impl.h
new file mode 100644
index 0000000..615af70
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/pthread_impl.h
@@ -0,0 +1,79 @@
+#ifndef _PTHREAD_IMPL_H
+#define _PTHREAD_IMPL_H
+
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <limits.h>
+#include <inttypes.h>
+#include <setjmp.h>
+#include <string.h>
+#include <time.h>
+#include "libc.h"
+#include "syscall.h"
+#include "atomic.h"
+#include "futex.h"
+
+#define pthread __pthread
+
+struct pthread {
+	struct pthread *self;
+	unsigned long tlsdesc[4];
+	pid_t tid, pid;
+	int tsd_used, errno_val, *errno_ptr;
+	volatile int canceldisable, cancelasync, cancelpoint, cancel;
+	unsigned char *map_base;
+	size_t map_size;
+	void *start_arg;
+	void *(*start)(void *);
+	void *result;
+	jmp_buf exit_jmp_buf;
+	int detached;
+	int exitlock;
+	struct __ptcb *cancelbuf;
+	void **tsd;
+	pthread_attr_t attr;
+};
+
+#define __SU (sizeof(size_t)/sizeof(int))
+
+#define _a_stacksize __u.__s[0]
+#define _a_guardsize __u.__s[1]
+#define _a_detach __u.__i[2*__SU+0]
+#define _m_type __u.__i[0]
+#define _m_lock __u.__i[1]
+#define _m_waiters __u.__i[2]
+#define _m_owner __u.__i[3]
+#define _c_block __u.__i[0]
+#define _rw_wrlock __u.__i[0]
+#define _rw_readers __u.__i[1]
+#define _rw_waiters __u.__i[2]
+#define _rw_owner __u.__i[3]
+#define _b_count __u.__i[0]
+#define _b_limit __u.__i[1]
+#define _b_left __u.__i[2]
+#define _b_waiters __u.__i[3]
+
+#include "pthread_arch.h"
+
+#define SIGCANCEL 32
+#define SIGSYSCALL 33
+#define SIGTIMER  32 /* ?? */
+
+int __set_thread_area(void *);
+int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
+int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
+void __lock(volatile int *);
+void __unmapself(void *, size_t);
+
+int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
+void __wait(volatile int *, volatile int *, int, int);
+void __wake(volatile int *, int, int);
+
+#define DEFAULT_STACK_SIZE (16384-PAGE_SIZE)
+#define DEFAULT_GUARD_SIZE PAGE_SIZE
+
+#endif
diff --git a/05/musl-0.6.0/src/internal/stdio_impl.h b/05/musl-0.6.0/src/internal/stdio_impl.h
new file mode 100644
index 0000000..1e9159f
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/stdio_impl.h
@@ -0,0 +1,100 @@
+#ifndef _STDIO_IMPL_H
+#define _STDIO_IMPL_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <inttypes.h>
+#include <wchar.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <errno.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <ctype.h>
+#include <sys/wait.h>
+#include <math.h>
+#include <float.h>
+#include "syscall.h"
+#include "libc.h"
+
+#define UNGET 4
+
+#define FLOCK(f) LOCK(&f->lock)
+#define FUNLOCK(f) UNLOCK(&f->lock)
+
+#define F_PERM 1
+#define F_NORD 4
+#define F_NOWR 8
+#define F_EOF 16
+#define F_ERR 32
+
+struct __FILE_s {
+	unsigned flags;
+	unsigned char *rpos, *rstop;
+	unsigned char *rend, *wend;
+	unsigned char *wpos, *wstop;
+	unsigned char *wbase;
+	unsigned char *dummy01[3];
+	unsigned char *buf;
+	size_t buf_size;
+	FILE *prev, *next;
+	int fd;
+	int pipe_pid;
+	long dummy2;
+	short dummy3;
+	char dummy4;
+	signed char lbf;
+	int lock;
+	int lockcount;
+	void *owner;
+	off_t off;
+	int (*flush)(FILE *);
+	void **wide_data; /* must be NULL */
+	size_t (*read)(FILE *, unsigned char *, size_t);
+	size_t (*write)(FILE *, const unsigned char *, size_t);
+	off_t (*seek)(FILE *, off_t, int);
+	int mode;
+	int (*close)(FILE *);
+};
+
+size_t __stdio_read(FILE *, unsigned char *, size_t);
+size_t __stdio_write(FILE *, const unsigned char *, size_t);
+off_t __stdio_seek(FILE *, off_t, int);
+int __stdio_close(FILE *);
+
+int __overflow(FILE *, int);
+int __oflow(FILE *);
+int __uflow(FILE *);
+int __underflow(FILE *);
+
+int __fseeko(FILE *, off_t, int);
+int __fseeko_unlocked(FILE *, off_t, int);
+off_t __ftello(FILE *);
+off_t __ftello_unlocked(FILE *);
+size_t __fwritex(const unsigned char *, size_t, FILE *);
+int __putc_unlocked(int, FILE *);
+
+FILE *__fdopen(int, const char *);
+
+extern struct ofl
+{
+	FILE *head;
+	int lock;
+} __ofl;
+
+#define OFLLOCK() LOCK(&__ofl.lock)
+#define OFLUNLOCK() UNLOCK(&__ofl.lock)
+#define ofl_head (__ofl.head)
+
+#define feof(f) ((f)->flags & F_EOF)
+#define ferror(f) ((f)->flags & F_ERR)
+
+/* Caller-allocated FILE * operations */
+FILE *__fopen_rb_ca(const char *, FILE *, unsigned char *, size_t);
+int __fclose_ca(FILE *);
+
+#endif
diff --git a/05/musl-0.6.0/src/internal/syscall.c b/05/musl-0.6.0/src/internal/syscall.c
new file mode 100644
index 0000000..4f159e0
--- /dev/null
+++ b/05/musl-0.6.0/src/internal/syscall.c
@@ -0,0 +1,11 @@
+#include <errno.h>
+#include <unistd.h>
+
+long __syscall_ret(unsigned long r)
+{
+	if (r >= (unsigned long)-1 - 4096) {
+		errno = -(long)r;
+		return -1;
+	}
+	return (long)r;
+}