This commit is contained in:
pommicket 2022-02-23 22:37:01 -08:00
parent 9bc8a11afe
commit c75af0c8e5
28 changed files with 711 additions and 64 deletions

View file

@ -1,2 +1,3 @@
*.o
*.a
musl-gcc

View file

@ -8,6 +8,7 @@
# Do not make changes here.
#
CC = ../tcc-0.9.27/tcc0
exec_prefix = /usr/local/musl-bootstrap
bindir = $(exec_prefix)/bin
@ -16,7 +17,7 @@ includedir = $(prefix)/include
libdir = $(prefix)/lib
SRCS = $(sort $(wildcard src/*/*.c))
OBJS = $(SRCS:.c=.o) src/alloca86_64-bt.o src/alloca86_64.o src/libtcc1.o src/va_list.o src/syscall56.o
OBJS = $(SRCS:.c=.o) src/alloca86_64-bt.o src/alloca86_64.o src/libtcc1.o src/va_list.o src/syscall.o
LOBJS = $(OBJS:.o=.lo)
GENH = include/bits/alltypes.h
@ -44,9 +45,10 @@ all: $(ALL_LIBS) $(ALL_TOOLS)
install: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
src/syscall56.o: src/syscall56.s
src/syscall.o: src/syscall.s
$(CC) -c -o $@ $<
src/%.o: ../tcc-0.9.27/lib/%.o
cp $< $@
clean:
rm -f crt/*.o
rm -f $(OBJS)

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@ -20,3 +20,23 @@ struct stat {
struct timespec st_ctim;
long __unused[3];
};
struct stat64 {
unsigned long st_dev;
ino_t st_ino;
nlink_t st_nlink;
mode_t st_mode;
uid_t st_uid;
gid_t st_gid;
unsigned int __pad0;
dev_t st_rdev;
off_t st_size;
blksize_t st_blksize;
blkcnt_t st_blocks;
struct timespec st_atim;
struct timespec st_mtim;
struct timespec st_ctim;
long __unused[3];
};

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@ -1,2 +1,79 @@
#include "/usr/local/tcc-bootstrap/include/stdarg.h"
#ifndef _STDARG_H
#define _STDARG_H
#ifdef __x86_64__
#ifndef _WIN64
//This should be in sync with the declaration on our lib/libtcc1.c
/* GCC compatible definition of va_list. */
typedef struct {
unsigned int gp_offset;
unsigned int fp_offset;
union {
unsigned int overflow_offset;
char *overflow_arg_area;
};
char *reg_save_area;
} __va_list_struct;
typedef __va_list_struct va_list[1];
void __va_start(__va_list_struct *ap, void *fp);
void *__va_arg(__va_list_struct *ap, int arg_type, int size, int align);
#define va_start(ap, last) __va_start(ap, __builtin_frame_address(0))
#define va_arg(ap, type) \
(*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type))))
#define va_copy(dest, src) (*(dest) = *(src))
#define va_end(ap)
/* avoid conflicting definition for va_list on Macs. */
#define _VA_LIST_T
#else /* _WIN64 */
typedef char *va_list;
#define va_start(ap,last) __builtin_va_start(ap,last)
#define va_arg(ap, t) ((sizeof(t) > 8 || (sizeof(t) & (sizeof(t) - 1))) \
? **(t **)((ap += 8) - 8) : *(t *)((ap += 8) - 8))
#define va_copy(dest, src) ((dest) = (src))
#define va_end(ap)
#endif
#elif __arm__
typedef char *va_list;
#define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x)
#define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \
& ~(_tcc_alignof(type) - 1))
#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
#define va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \
&~3), *(type *)(ap - ((sizeof(type)+3)&~3)))
#define va_copy(dest, src) (dest) = (src)
#define va_end(ap)
#elif defined(__aarch64__)
typedef struct {
void *__stack;
void *__gr_top;
void *__vr_top;
int __gr_offs;
int __vr_offs;
} va_list;
#define va_start(ap, last) __va_start(ap, last)
#define va_arg(ap, type) __va_arg(ap, type)
#define va_end(ap)
#define va_copy(dest, src) ((dest) = (src))
#else /* __i386__ */
typedef char *va_list;
/* only correct for i386 */
#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
#define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))
#define va_copy(dest, src) (dest) = (src)
#define va_end(ap)
#endif
/* fix a buggy dependency on GCC in libio.h */
typedef va_list __gnuc_va_list;
#define _VA_LIST_DEFINED
#endif /* _STDARG_H */

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@ -24,6 +24,7 @@ extern long __syscall_ret(unsigned long);
#define SYSCALL "syscall"
#if 0
static inline long syscall0(long n)
{
unsigned long ret;
@ -63,7 +64,6 @@ static inline long syscall4(long n, long a1, long a2, long a3, long a4)
return __syscall_ret(ret);
}
#if 0
static inline long syscall5(long n, long a1, long a2, long a3, long a4,
long a5)
{
@ -88,6 +88,11 @@ static inline long syscall6(long n, long a1, long a2, long a3, long a4,
return __syscall_ret(ret);
}
#else
extern long syscall0(long);
extern long syscall1(long, long);
extern long syscall2(long, long, long);
extern long syscall3(long, long, long, long);
extern long syscall4(long, long, long, long, long);
extern long syscall5(long, long, long, long, long, long);
extern long syscall6(long, long, long, long, long, long, long);
#endif

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@ -34,6 +34,33 @@ int dirfd(DIR *);
int alphasort(const struct dirent **, const struct dirent **);
int scandir(const char *, struct dirent ***, int (*)(const struct dirent *), int (*)(const struct dirent **, const struct dirent **));
/* File types for `d_type'. */
enum
{
DT_UNKNOWN = 0,
# define DT_UNKNOWN DT_UNKNOWN
DT_FIFO = 1,
# define DT_FIFO DT_FIFO
DT_CHR = 2,
# define DT_CHR DT_CHR
DT_DIR = 4,
# define DT_DIR DT_DIR
DT_BLK = 6,
# define DT_BLK DT_BLK
DT_REG = 8,
# define DT_REG DT_REG
DT_LNK = 10,
# define DT_LNK DT_LNK
DT_SOCK = 12,
# define DT_SOCK DT_SOCK
DT_WHT = 14
# define DT_WHT DT_WHT
};
/* Convert between stat structure types and directory types. */
# define IFTODT(mode) (((mode) & 0170000) >> 12)
# define DTTOIF(dirtype) ((dirtype) << 12)
#ifdef __cplusplus
extern }
#endif

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@ -1 +1,87 @@
#include "/usr/local/tcc-bootstrap/include/stdarg.h"
#ifndef _STDARG_H
#define _STDARG_H
#ifdef __GNUC__
#define va_list __builtin_va_list
#define va_arg __builtin_va_arg
#define va_start __builtin_va_start
#define va_end __builtin_va_end
#define va_copy __builtin_va_copy
#else
#ifdef __x86_64__
#ifndef _WIN64
//This should be in sync with the declaration on our lib/libtcc1.c
/* GCC compatible definition of va_list. */
typedef struct {
unsigned int gp_offset;
unsigned int fp_offset;
union {
unsigned int overflow_offset;
char *overflow_arg_area;
};
char *reg_save_area;
} __va_list_struct;
typedef __va_list_struct va_list[1];
void __va_start(__va_list_struct *ap, void *fp);
void *__va_arg(__va_list_struct *ap, int arg_type, int size, int align);
#define va_start(ap, last) __va_start(ap, __builtin_frame_address(0))
#define va_arg(ap, type) \
(*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type))))
#define va_copy(dest, src) (*(dest) = *(src))
#define va_end(ap)
/* avoid conflicting definition for va_list on Macs. */
#define _VA_LIST_T
#else /* _WIN64 */
typedef char *va_list;
#define va_start(ap,last) __builtin_va_start(ap,last)
#define va_arg(ap, t) ((sizeof(t) > 8 || (sizeof(t) & (sizeof(t) - 1))) \
? **(t **)((ap += 8) - 8) : *(t *)((ap += 8) - 8))
#define va_copy(dest, src) ((dest) = (src))
#define va_end(ap)
#endif
#elif __arm__
typedef char *va_list;
#define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x)
#define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \
& ~(_tcc_alignof(type) - 1))
#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
#define va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \
&~3), *(type *)(ap - ((sizeof(type)+3)&~3)))
#define va_copy(dest, src) (dest) = (src)
#define va_end(ap)
#elif defined(__aarch64__)
typedef struct {
void *__stack;
void *__gr_top;
void *__vr_top;
int __gr_offs;
int __vr_offs;
} va_list;
#define va_start(ap, last) __va_start(ap, last)
#define va_arg(ap, type) __va_arg(ap, type)
#define va_end(ap)
#define va_copy(dest, src) ((dest) = (src))
#else /* __i386__ */
typedef char *va_list;
/* only correct for i386 */
#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
#define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))
#define va_copy(dest, src) (dest) = (src)
#define va_end(ap)
#endif
/* fix a buggy dependency on GCC in libio.h */
typedef va_list __gnuc_va_list;
#define _VA_LIST_DEFINED
#endif
#endif /* _STDARG_H */

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@ -0,0 +1,276 @@
/* Structures and definitions for magnetic tape I/O control commands.
Copyright (C) 1996-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* Written by H. Bergman <hennus@cybercomm.nl>. */
#ifndef _SYS_MTIO_H
#define _SYS_MTIO_H 1
/* Get necessary definitions from system and kernel headers. */
#include <sys/types.h>
#include <sys/ioctl.h>
/* Structure for MTIOCTOP - magnetic tape operation command. */
struct mtop
{
short int mt_op; /* Operations defined below. */
int mt_count; /* How many of them. */
};
#define _IOT_mtop /* Hurd ioctl type field. */ \
_IOT (_IOTS (short), 1, _IOTS (int), 1, 0, 0)
/* Magnetic Tape operations [Not all operations supported by all drivers]. */
#define MTRESET 0 /* +reset drive in case of problems. */
#define MTFSF 1 /* Forward space over FileMark,
* position at first record of next file. */
#define MTBSF 2 /* Backward space FileMark (position before FM). */
#define MTFSR 3 /* Forward space record. */
#define MTBSR 4 /* Backward space record. */
#define MTWEOF 5 /* Write an end-of-file record (mark). */
#define MTREW 6 /* Rewind. */
#define MTOFFL 7 /* Rewind and put the drive offline (eject?). */
#define MTNOP 8 /* No op, set status only (read with MTIOCGET). */
#define MTRETEN 9 /* Retension tape. */
#define MTBSFM 10 /* +backward space FileMark, position at FM. */
#define MTFSFM 11 /* +forward space FileMark, position at FM. */
#define MTEOM 12 /* Goto end of recorded media (for appending files).
MTEOM positions after the last FM, ready for
appending another file. */
#define MTERASE 13 /* Erase tape -- be careful! */
#define MTRAS1 14 /* Run self test 1 (nondestructive). */
#define MTRAS2 15 /* Run self test 2 (destructive). */
#define MTRAS3 16 /* Reserved for self test 3. */
#define MTSETBLK 20 /* Set block length (SCSI). */
#define MTSETDENSITY 21 /* Set tape density (SCSI). */
#define MTSEEK 22 /* Seek to block (Tandberg, etc.). */
#define MTTELL 23 /* Tell block (Tandberg, etc.). */
#define MTSETDRVBUFFER 24 /* Set the drive buffering according to SCSI-2.
Ordinary buffered operation with code 1. */
#define MTFSS 25 /* Space forward over setmarks. */
#define MTBSS 26 /* Space backward over setmarks. */
#define MTWSM 27 /* Write setmarks. */
#define MTLOCK 28 /* Lock the drive door. */
#define MTUNLOCK 29 /* Unlock the drive door. */
#define MTLOAD 30 /* Execute the SCSI load command. */
#define MTUNLOAD 31 /* Execute the SCSI unload command. */
#define MTCOMPRESSION 32/* Control compression with SCSI mode page 15. */
#define MTSETPART 33 /* Change the active tape partition. */
#define MTMKPART 34 /* Format the tape with one or two partitions. */
/* structure for MTIOCGET - mag tape get status command */
struct mtget
{
long int mt_type; /* Type of magtape device. */
long int mt_resid; /* Residual count: (not sure)
number of bytes ignored, or
number of files not skipped, or
number of records not skipped. */
/* The following registers are device dependent. */
long int mt_dsreg; /* Status register. */
long int mt_gstat; /* Generic (device independent) status. */
long int mt_erreg; /* Error register. */
/* The next two fields are not always used. */
int mt_fileno; /* Number of current file on tape. */
int mt_blkno; /* Current block number. */
};
#define _IOT_mtget /* Hurd ioctl type field. */ \
_IOT (_IOTS (long), 7, 0, 0, 0, 0)
/* Constants for mt_type. Not all of these are supported, and
these are not all of the ones that are supported. */
#define MT_ISUNKNOWN 0x01
#define MT_ISQIC02 0x02 /* Generic QIC-02 tape streamer. */
#define MT_ISWT5150 0x03 /* Wangtek 5150EQ, QIC-150, QIC-02. */
#define MT_ISARCHIVE_5945L2 0x04 /* Archive 5945L-2, QIC-24, QIC-02?. */
#define MT_ISCMSJ500 0x05 /* CMS Jumbo 500 (QIC-02?). */
#define MT_ISTDC3610 0x06 /* Tandberg 6310, QIC-24. */
#define MT_ISARCHIVE_VP60I 0x07 /* Archive VP60i, QIC-02. */
#define MT_ISARCHIVE_2150L 0x08 /* Archive Viper 2150L. */
#define MT_ISARCHIVE_2060L 0x09 /* Archive Viper 2060L. */
#define MT_ISARCHIVESC499 0x0A /* Archive SC-499 QIC-36 controller. */
#define MT_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features. */
#define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24. */
#define MT_ISTEAC_MT2ST 0x12 /* Teac MT-2ST 155mb drive,
Teac DC-1 card (Wangtek type). */
#define MT_ISEVEREX_FT40A 0x32 /* Everex FT40A (QIC-40). */
#define MT_ISDDS1 0x51 /* DDS device without partitions. */
#define MT_ISDDS2 0x52 /* DDS device with partitions. */
#define MT_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit. */
#define MT_ISSCSI2 0x72 /* Generic ANSI SCSI-2 tape unit. */
/* QIC-40/80/3010/3020 ftape supported drives.
20bit vendor ID + 0x800000 (see vendors.h in ftape distribution). */
#define MT_ISFTAPE_UNKNOWN 0x800000 /* obsolete */
#define MT_ISFTAPE_FLAG 0x800000
struct mt_tape_info
{
long int t_type; /* Device type id (mt_type). */
char *t_name; /* Descriptive name. */
};
#define MT_TAPE_INFO \
{ \
{MT_ISUNKNOWN, "Unknown type of tape device"}, \
{MT_ISQIC02, "Generic QIC-02 tape streamer"}, \
{MT_ISWT5150, "Wangtek 5150, QIC-150"}, \
{MT_ISARCHIVE_5945L2, "Archive 5945L-2"}, \
{MT_ISCMSJ500, "CMS Jumbo 500"}, \
{MT_ISTDC3610, "Tandberg TDC 3610, QIC-24"}, \
{MT_ISARCHIVE_VP60I, "Archive VP60i, QIC-02"}, \
{MT_ISARCHIVE_2150L, "Archive Viper 2150L"}, \
{MT_ISARCHIVE_2060L, "Archive Viper 2060L"}, \
{MT_ISARCHIVESC499, "Archive SC-499 QIC-36 controller"}, \
{MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \
{MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \
{MT_ISTEAC_MT2ST, "Teac MT-2ST 155mb data cassette drive"}, \
{MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \
{MT_ISSCSI1, "Generic SCSI-1 tape"}, \
{MT_ISSCSI2, "Generic SCSI-2 tape"}, \
{0, NULL} \
}
/* Structure for MTIOCPOS - mag tape get position command. */
struct mtpos
{
long int mt_blkno; /* Current block number. */
};
#define _IOT_mtpos /* Hurd ioctl type field. */ \
_IOT_SIMPLE (long)
/* Structure for MTIOCGETCONFIG/MTIOCSETCONFIG primarily intended
as an interim solution for QIC-02 until DDI is fully implemented. */
struct mtconfiginfo
{
long int mt_type; /* Drive type. */
long int ifc_type; /* Interface card type. */
unsigned short int irqnr; /* IRQ number to use. */
unsigned short int dmanr; /* DMA channel to use. */
unsigned short int port; /* IO port base address. */
unsigned long int debug; /* Debugging flags. */
unsigned have_dens:1;
unsigned have_bsf:1;
unsigned have_fsr:1;
unsigned have_bsr:1;
unsigned have_eod:1;
unsigned have_seek:1;
unsigned have_tell:1;
unsigned have_ras1:1;
unsigned have_ras2:1;
unsigned have_ras3:1;
unsigned have_qfa:1;
unsigned pad1:5;
char reserved[10];
};
#define _IOT_mtconfiginfo /* Hurd ioctl type field. */ \
_IOT (_IOTS (long), 2, _IOTS (short), 3, _IOTS (long), 1) /* XXX wrong */
/* Magnetic tape I/O control commands. */
#define MTIOCTOP _IOW('m', 1, struct mtop) /* Do a mag tape op. */
#define MTIOCGET _IOR('m', 2, struct mtget) /* Get tape status. */
#define MTIOCPOS _IOR('m', 3, struct mtpos) /* Get tape position.*/
/* The next two are used by the QIC-02 driver for runtime reconfiguration.
See tpqic02.h for struct mtconfiginfo. */
#define MTIOCGETCONFIG _IOR('m', 4, struct mtconfiginfo) /* Get tape config.*/
#define MTIOCSETCONFIG _IOW('m', 5, struct mtconfiginfo) /* Set tape config.*/
/* Generic Mag Tape (device independent) status macros for examining
mt_gstat -- HP-UX compatible.
There is room for more generic status bits here, but I don't
know which of them are reserved. At least three or so should
be added to make this really useful. */
#define GMT_EOF(x) ((x) & 0x80000000)
#define GMT_BOT(x) ((x) & 0x40000000)
#define GMT_EOT(x) ((x) & 0x20000000)
#define GMT_SM(x) ((x) & 0x10000000) /* DDS setmark */
#define GMT_EOD(x) ((x) & 0x08000000) /* DDS EOD */
#define GMT_WR_PROT(x) ((x) & 0x04000000)
/* #define GMT_ ? ((x) & 0x02000000) */
#define GMT_ONLINE(x) ((x) & 0x01000000)
#define GMT_D_6250(x) ((x) & 0x00800000)
#define GMT_D_1600(x) ((x) & 0x00400000)
#define GMT_D_800(x) ((x) & 0x00200000)
/* #define GMT_ ? ((x) & 0x00100000) */
/* #define GMT_ ? ((x) & 0x00080000) */
#define GMT_DR_OPEN(x) ((x) & 0x00040000) /* Door open (no tape). */
/* #define GMT_ ? ((x) & 0x00020000) */
#define GMT_IM_REP_EN(x) ((x) & 0x00010000) /* Immediate report mode.*/
/* 16 generic status bits unused. */
/* SCSI-tape specific definitions. Bitfield shifts in the status */
#define MT_ST_BLKSIZE_SHIFT 0
#define MT_ST_BLKSIZE_MASK 0xffffff
#define MT_ST_DENSITY_SHIFT 24
#define MT_ST_DENSITY_MASK 0xff000000
#define MT_ST_SOFTERR_SHIFT 0
#define MT_ST_SOFTERR_MASK 0xffff
/* Bitfields for the MTSETDRVBUFFER ioctl. */
#define MT_ST_OPTIONS 0xf0000000
#define MT_ST_BOOLEANS 0x10000000
#define MT_ST_SETBOOLEANS 0x30000000
#define MT_ST_CLEARBOOLEANS 0x40000000
#define MT_ST_WRITE_THRESHOLD 0x20000000
#define MT_ST_DEF_BLKSIZE 0x50000000
#define MT_ST_DEF_OPTIONS 0x60000000
#define MT_ST_BUFFER_WRITES 0x1
#define MT_ST_ASYNC_WRITES 0x2
#define MT_ST_READ_AHEAD 0x4
#define MT_ST_DEBUGGING 0x8
#define MT_ST_TWO_FM 0x10
#define MT_ST_FAST_MTEOM 0x20
#define MT_ST_AUTO_LOCK 0x40
#define MT_ST_DEF_WRITES 0x80
#define MT_ST_CAN_BSR 0x100
#define MT_ST_NO_BLKLIMS 0x200
#define MT_ST_CAN_PARTITIONS 0x400
#define MT_ST_SCSI2LOGICAL 0x800
/* The mode parameters to be controlled. Parameter chosen with bits 20-28. */
#define MT_ST_CLEAR_DEFAULT 0xfffff
#define MT_ST_DEF_DENSITY (MT_ST_DEF_OPTIONS | 0x100000)
#define MT_ST_DEF_COMPRESSION (MT_ST_DEF_OPTIONS | 0x200000)
#define MT_ST_DEF_DRVBUFFER (MT_ST_DEF_OPTIONS | 0x300000)
/* The offset for the arguments for the special HP changer load command. */
#define MT_ST_HPLOADER_OFFSET 10000
/* Specify default tape device. */
#ifndef DEFTAPE
# define DEFTAPE "/dev/tape"
#endif
#endif /* mtio.h */

View file

@ -324,7 +324,7 @@ void *malloc(size_t n)
{
struct chunk *c;
int i, j;
if (n == 0) n = 1;/* everyone depends on this behavior for some fucking reason */
if (!n || adjust_size(&n) < 0) return 0;
if (n > MMAP_THRESHOLD) {

View file

@ -7,4 +7,7 @@ int __madvise(void *addr, size_t len, int advice)
return syscall3(__NR_madvise, (long)addr, len, advice);
}
weak_alias(__madvise, madvise);
int madvise(void *addr, size_t len, int advice)
{
return syscall3(__NR_madvise, (long)addr, len, advice);
}

View file

@ -17,6 +17,16 @@ void *__mmap(void *start, size_t len, int prot, int flags, int fd, off_t off)
#endif
}
weak_alias(__mmap, mmap);
void *mmap(void *start, size_t len, int prot, int flags, int fd, off_t off)
{
if (sizeof(off_t) > sizeof(long))
if (((long)off & 0xfff) | ((long)((unsigned long long)off>>(12 + 8*(sizeof(off_t)-sizeof(long))))))
start = (void *)-1;
#ifdef __NR_mmap2
return (void *)syscall6(__NR_mmap2, (long)start, len, prot, flags, fd, off>>12);
#else
return (void *)syscall6(__NR_mmap, (long)start, len, prot, flags, fd, off);
#endif
}
LFS64(mmap);

View file

@ -8,4 +8,7 @@ int __munmap(void *start, size_t len)
return syscall2(__NR_munmap, (long)start, len);
}
weak_alias(__munmap, munmap);
int munmap(void *start, size_t len)
{
return syscall2(__NR_munmap, (long)start, len);
}

View file

@ -42,4 +42,12 @@ int __sigaction(int sig, const struct sigaction *sa, struct sigaction *old)
return __libc_sigaction(sig, sa, old);
}
weak_alias(__sigaction, sigaction);
int sigaction(int sig, const struct sigaction *sa, struct sigaction *old)
{
if (sig == SIGCANCEL || sig == SIGSYSCALL) {
errno = EINVAL;
return -1;
}
return __libc_sigaction(sig, sa, old);
}

View file

@ -19,5 +19,26 @@ int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
return __libc_sigprocmask(how, set, old);
}
weak_alias(__sigprocmask, sigprocmask);
weak_alias(__sigprocmask, pthread_sigmask);
int sigprocmask(int how, const sigset_t *set, sigset_t *old)
{
sigset_t tmp;
/* Quickly mask out bits 32 and 33 (thread control signals) */
if (0 && how != SIG_UNBLOCK && (set->__bits[4/sizeof *set->__bits] & 3UL<<(32&8*sizeof *set->__bits-1))) {
tmp = *set;
set = &tmp;
tmp.__bits[4/sizeof *set->__bits] &= ~(3UL<<(32&8*sizeof *set->__bits-1));
}
return __libc_sigprocmask(how, set, old);
}
int pthread_sigmask(int how, const sigset_t *set, sigset_t *old)
{
sigset_t tmp;
/* Quickly mask out bits 32 and 33 (thread control signals) */
if (0 && how != SIG_UNBLOCK && (set->__bits[4/sizeof *set->__bits] & 3UL<<(32&8*sizeof *set->__bits-1))) {
tmp = *set;
set = &tmp;
tmp.__bits[4/sizeof *set->__bits] &= ~(3UL<<(32&8*sizeof *set->__bits-1));
}
return __libc_sigprocmask(how, set, old);
}

View file

@ -7,4 +7,10 @@ void clearerr(FILE *f)
FUNLOCK(f);
}
weak_alias(clearerr, clearerr_unlocked);
void clearerr_unlocked(FILE *f)
{
FLOCK(f);
f->flags &= ~(F_EOF|F_ERR);
FUNLOCK(f);
}

View file

@ -7,4 +7,7 @@ int feof(FILE *f)
return !!(f->flags & F_EOF);
}
weak_alias(feof, feof_unlocked);
int feof_unlocked(FILE *f)
{
return !!(f->flags & F_EOF);
}

View file

@ -7,4 +7,7 @@ int ferror(FILE *f)
return !!(f->flags & F_ERR);
}
weak_alias(ferror, ferror_unlocked);
int ferror_unlocked(FILE *f)
{
return !!(f->flags & F_ERR);
}

View file

@ -8,3 +8,12 @@ int fgetc(FILE *f)
FUNLOCK(f);
return c;
}
int fgetc_unlocked(FILE *f)
{
int c;
FLOCK(f);
c = f->rpos < f->rstop ? *f->rpos++ : __uflow(f);
FUNLOCK(f);
return c;
}

View file

@ -31,4 +31,7 @@ char *fgets(char *s, int n, FILE *f)
return (p == s) ? 0 : s;
}
weak_alias(fgets, fgets_unlocked);
char *fgets_unlocked(char *s, int n, FILE *f) {
return fgets(s, n, f);
}

View file

@ -5,4 +5,7 @@ int fileno(FILE *f)
return f->fd;
}
weak_alias(fileno, fileno_unlocked);
int fileno_unlocked(FILE *f)
{
return f->fd;
}

View file

@ -8,3 +8,12 @@ int fputc(int c, FILE *f)
FUNLOCK(f);
return c;
}
int fputc_unlocked(int c, FILE *f)
{
FLOCK(f);
if (c != f->lbf && f->wpos + 1 < f->wend) *f->wpos++ = c;
else c = __overflow(f, c);
FUNLOCK(f);
return c;
}

View file

@ -7,4 +7,9 @@ int fputs(const char *s, FILE *f)
return (int)fwrite(s, l, 1, f) - 1;
}
weak_alias(fputs, fputs_unlocked);
int fputs_unlocked(const char *s, FILE *f)
{
size_t l = strlen(s);
if (!l) return 0;
return (int)fwrite(s, l, 1, f) - 1;
}

View file

@ -46,4 +46,6 @@ eof:
return (len-l)/size;
}
weak_alias(fread, fread_unlocked);
size_t fread_unlocked(void *destv, size_t size, size_t nmemb, FILE *f) {
return fread(destv, size, nmemb, f);
}

View file

@ -48,4 +48,12 @@ size_t fwrite(const void *src, size_t size, size_t nmemb, FILE *f)
return l/size;
}
weak_alias(fwrite, fwrite_unlocked);
size_t fwrite_unlocked(const void *src, size_t size, size_t nmemb, FILE *f)
{
size_t l = size*nmemb;
if (!l) return l;
FLOCK(f);
l = __fwritex(src, l, f);
FUNLOCK(f);
return l/size;
}

View file

@ -10,4 +10,10 @@ char *__strdup(const char *s)
return memcpy(d, s, l+1);
}
weak_alias(__strdup, strdup);
char *strdup(const char *s)
{
size_t l = strlen(s);
char *d = malloc(l+1);
if (!d) return NULL;
return memcpy(d, s, l+1);
}

View file

@ -1,6 +1,18 @@
# this file is necessary because tcc doesn't like musl's inline-assembly implementation
# of syscall
.global syscall0
.global syscall1
.global syscall2
.global syscall3
.global syscall4
.global syscall5
.global syscall6
syscall0:
syscall1:
syscall2:
syscall3:
syscall4:
syscall5:
syscall6:
# SysV calling convention: RDI, RSI, RDX, RCX, R8, R9, 8(%rsp)
@ -13,4 +25,6 @@ syscall6:
mov %r9, %r8
mov 8(%rsp), %r9
syscall
mov %rax, %rdi
call __syscall_ret
ret

View file

@ -5,3 +5,8 @@ int clock_gettime(clockid_t clk, struct timespec *ts)
{
return syscall2(__NR_clock_gettime, clk, (long)ts);
}
int clock_settime(clockid_t clk, const struct timespec *ts)
{
return syscall2(__NR_clock_settime, clk, (long)ts);
}