# Some people named their cross compiler toolchain powerpc-linux-gcc

powerpc:

	$(MAKE) ARCH=ppc CROSS=powerpc-linux- all

#include <dietfeatures.h>

#include "syscalls.h"

#include <errno.h>

.text

.weak clone

clone:

.global __clone

__clone:

	cmpwi	     4,0	/* check have non null child_stack pointer */

	cmpwi	cr1, 3,0	/* check have non null thread_funcion */

	cror	eq,4*cr1+eq,eq	/* now if eq is set one is or both are zero */

	beq	.Lclone_error

	stwu	 1,-32(1)	/* alloc some space on the stack */

	stmw	29, 16(1)	/* save r29,r30,r31 on stack */

	rlwinm	4,4,0,0,27	/* mask out lower 4 bits */

	/* move parameter to positions clone wants them */

	mr	29,3		/* r29 = r3 fn */

	mr	30,4		/* r30 = r4 stack */

	mr	31,6		/* r31 = r6 arg */

	mr	3, 5		/* r3  = r5 flags */

	li	0, __NR_clone	/* load syscall nr. */

	sc

	cmpwi	cr1,3,0		/* compare return of syscall with 0 */

	crandc	4*cr1+eq,4*cr1+eq,so

	bne	.Lclone_parent	/* return was non zero -> .Lclone_parent */

	/* we are the cloned process */

	mr	 1, 30		/* set stack pointer */

	mtctr	29		/* set count register to fn ? */

	mr	 3, 31		/* set argument */

	bctrl			/* branch trough count register and link */

	b	_exit		/* exit thread */

.Lclone_parent:

	lmw	29,16(1)	/* restore saved registers */

	addi	 1, 1,32	/* free stack */

	bnslr+			/* had cloned a thread so return to parent */

	b	error_unified_syscall

.Lclone_error:

	li	3, EINVAL

	b	error_unified_syscall

#ifdef __ELF__

.section .note.GNU-stack,"",%progbits

#endif

#include <setjmp.h>

#ifdef PIC

#define JUMPTARGET(name) name##@plt

#else

#define JUMPTARGET(name) name

#endif

.global __longjmp

.type __longjmp,@function

.align 2

__longjmp:

	lwz 1,(JB_GPR1*4)(3)

	lwz 2,(JB_GPR2*4)(3)

	lwz 0,(JB_LR*4)(3)

	lwz 14,((JB_GPRS+0)*4)(3)

	lfd 14,((JB_FPRS+0*2)*4)(3)

	lwz 15,((JB_GPRS+1)*4)(3)

	lfd 15,((JB_FPRS+1*2)*4)(3)

	lwz 16,((JB_GPRS+2)*4)(3)

	lfd 16,((JB_FPRS+2*2)*4)(3)

	lwz 17,((JB_GPRS+3)*4)(3)

	lfd 17,((JB_FPRS+3*2)*4)(3)

	lwz 18,((JB_GPRS+4)*4)(3)

	lfd 18,((JB_FPRS+4*2)*4)(3)

	lwz 19,((JB_GPRS+5)*4)(3)

	lfd 19,((JB_FPRS+5*2)*4)(3)

	lwz 20,((JB_GPRS+6)*4)(3)

	lfd 20,((JB_FPRS+6*2)*4)(3)

	mtlr 0

	lwz 21,((JB_GPRS+7)*4)(3)

	lfd 21,((JB_FPRS+7*2)*4)(3)

	lwz 22,((JB_GPRS+8)*4)(3)

	lfd 22,((JB_FPRS+8*2)*4)(3)

	lwz 0,(JB_CR*4)(3)

	lwz 23,((JB_GPRS+9)*4)(3)

	lfd 23,((JB_FPRS+9*2)*4)(3)

	lwz 24,((JB_GPRS+10)*4)(3)

	lfd 24,((JB_FPRS+10*2)*4)(3)

	lwz 25,((JB_GPRS+11)*4)(3)

	lfd 25,((JB_FPRS+11*2)*4)(3)

	mtcrf 0xFF,0

	lwz 26,((JB_GPRS+12)*4)(3)

	lfd 26,((JB_FPRS+12*2)*4)(3)

	lwz 27,((JB_GPRS+13)*4)(3)

	lfd 27,((JB_FPRS+13*2)*4)(3)

	lwz 28,((JB_GPRS+14)*4)(3)

	lfd 28,((JB_FPRS+14*2)*4)(3)

	lwz 29,((JB_GPRS+15)*4)(3)

	lfd 29,((JB_FPRS+15*2)*4)(3)

	lwz 30,((JB_GPRS+16)*4)(3)

	lfd 30,((JB_FPRS+16*2)*4)(3)

	lwz 31,((JB_GPRS+17)*4)(3)

	lfd 31,((JB_FPRS+17*2)*4)(3)

	mr 3,4

	blr

.size __longjmp,.-__longjmp

#ifdef __ELF__

.section .note.GNU-stack,"",%progbits

#endif

CFLAGS+=-mpowerpc-gpopt -mpowerpc-gfxopt -Os

VPATH:=ppc:syscalls.s:$(VPATH)

#include "dietfeatures.h"

#include <sys/types.h>

#include <errno.h>

#include "syscalls.h"

int mmap(void*start,size_t length,int prot,int flags,int fd,off_t offset) {

  unsigned long __sc_ret, __sc_err;

  {

    register unsigned long __sc_0 __asm__ ("r0");

    register unsigned long __sc_3 __asm__ ("r3");

    register unsigned long __sc_4 __asm__ ("r4");

    register unsigned long __sc_5 __asm__ ("r5");

    register unsigned long __sc_6 __asm__ ("r6");

    register unsigned long __sc_7 __asm__ ("r7");

    register unsigned long __sc_8 __asm__ ("r8");

    __sc_3 = (unsigned long) (start);

    __sc_4 = (unsigned long) (length);

    __sc_5 = (unsigned long) (prot);

    __sc_6 = (unsigned long) (flags);

    __sc_7 = (unsigned long) (fd);

    __sc_8 = (unsigned long) (offset);

    __sc_0 = __NR_mmap;

    __asm__ __volatile__

	    ("sc           \n\t"

	      "mfcr %1      "

	    : "=&r" (__sc_3), "=&r" (__sc_0)

	    : "0"   (__sc_3), "1"   (__sc_0),

	      "r"   (__sc_4),

	      "r"   (__sc_5),

	      "r"   (__sc_6),

	      "r"   (__sc_7),

	      "r"   (__sc_8)

	    : "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12");

    __sc_ret = __sc_3;

    __sc_err = __sc_0;

  }

  return (__sc_err & 0x10000000 ? errno = __sc_ret, __sc_ret = -1 : 0),

	  (int) __sc_ret;

}

#include <setjmp.h>

#ifdef PIC

#define JUMPTARGET(name) name##@plt

#else

#define JUMPTARGET(name) name

#endif

.global __sigsetjmp

.type __sigsetjmp,@function

.align 2

__sigsetjmp:

        stw  1,(JB_GPR1*4)(3)

        mflr 0

        stw  2,(JB_GPR2*4)(3)

        stw  14,((JB_GPRS+0)*4)(3)

        stfd 14,((JB_FPRS+0*2)*4)(3)

        stw  0,(JB_LR*4)(3)

        stw  15,((JB_GPRS+1)*4)(3)

        stfd 15,((JB_FPRS+1*2)*4)(3)

        mfcr 0

        stw  16,((JB_GPRS+2)*4)(3)

        stfd 16,((JB_FPRS+2*2)*4)(3)

        stw  0,(JB_CR*4)(3)

        stw  17,((JB_GPRS+3)*4)(3)

        stfd 17,((JB_FPRS+3*2)*4)(3)

        stw  18,((JB_GPRS+4)*4)(3)

        stfd 18,((JB_FPRS+4*2)*4)(3)

        stw  19,((JB_GPRS+5)*4)(3)

        stfd 19,((JB_FPRS+5*2)*4)(3)

        stw  20,((JB_GPRS+6)*4)(3)

        stfd 20,((JB_FPRS+6*2)*4)(3)

        stw  21,((JB_GPRS+7)*4)(3)

        stfd 21,((JB_FPRS+7*2)*4)(3)

        stw  22,((JB_GPRS+8)*4)(3)

        stfd 22,((JB_FPRS+8*2)*4)(3)

        stw  23,((JB_GPRS+9)*4)(3)

        stfd 23,((JB_FPRS+9*2)*4)(3)

        stw  24,((JB_GPRS+10)*4)(3)

        stfd 24,((JB_FPRS+10*2)*4)(3)

        stw  25,((JB_GPRS+11)*4)(3)

        stfd 25,((JB_FPRS+11*2)*4)(3)

        stw  26,((JB_GPRS+12)*4)(3)

        stfd 26,((JB_FPRS+12*2)*4)(3)

        stw  27,((JB_GPRS+13)*4)(3)

        stfd 27,((JB_FPRS+13*2)*4)(3)

        stw  28,((JB_GPRS+14)*4)(3)

        stfd 28,((JB_FPRS+14*2)*4)(3)

        stw  29,((JB_GPRS+15)*4)(3)

        stfd 29,((JB_FPRS+15*2)*4)(3)

        stw  30,((JB_GPRS+16)*4)(3)

        stfd 30,((JB_FPRS+16*2)*4)(3)

        stw  31,((JB_GPRS+17)*4)(3)

        stfd 31,((JB_FPRS+17*2)*4)(3)

        b JUMPTARGET (__sigjmp_save)

.size __sigsetjmp,.-__sigsetjmp

#ifdef __ELF__

.section .note.GNU-stack,"",%progbits

#endif

#include "dietfeatures.h"

.text

.global _start

.type _start,@function

_start:

 /* Save the stack pointer, in case we're statically linked under Linux.  */

	mr	9,1

 /* Set up an initial stack frame, and clear the LR.  */

	clrrwi	1,1,4

	li	0,0

	stwu	1,-16(1)

	mtlr	0

	stw	0,0(1)

 /* r9 contains the initial stack pointer

    argc = (r9)

    argv = (r9+4)

    envp = argv+(argc+1)*4 */

	lis	14,__libc_stack_end@ha

	stw	9,__libc_stack_end@l(14)

	lwzu	3,0(9)	/* argc */

	addi	4,9,4	/* argv */

	add	5,0,3	/* argc... */

	addi	5,5,1	/* argc+1...*/

	slwi	5,5,2	/* (argc+1)*4 */

	add	5,5,4	/* argv+(argc+1)*4 */

	lis	14,environ@ha

	stw	5,environ@l(14)

#ifdef WANT_DYNAMIC

	mr	6,7

	bl	_dyn_start

#else

	bl	CALL_IN_STARTCODE

#endif

	b	exit

.size _start,.-_start

/* Define a symbol for the first piece of initialized data.  */

	.section ".data"

__data_start:

/* this is needed for libgcc_eh.a - see gcc-3.4/gcc/config/rs6000/linux-unwind.h */

	.weak	__libc_stack_end

	.lcomm	__libc_stack_end,4,4

	.type	__libc_stack_end,@object

#ifdef __ELF__

.section .note.GNU-stack,"",%progbits

#endif

#define __NR_exit		  1

#define __NR_fork		  2

#define __NR_read		  3

#define __NR_write		  4

#define __NR_open		  5

#define __NR_close		  6

#define __NR_waitpid		  7

#define __NR_creat		  8

#define __NR_link		  9

#define __NR_unlink		 10

#define __NR_execve		 11

#define __NR_chdir		 12

#define __NR_time		 13

#define __NR_mknod		 14

#define __NR_chmod		 15

#define __NR_lchown		 16

#define __NR_break		 17

#define __NR_oldstat		 18

#define __NR_lseek		 19

#define __NR_getpid		 20

#define __NR_mount		 21

#define __NR_umount		 22

#define __NR_setuid		 23

#define __NR_getuid		 24

#define __NR_stime		 25

#define __NR_ptrace		 26

#define __NR_alarm		 27

#define __NR_oldfstat		 28

#define __NR_pause		 29

#define __NR_utime		 30

#define __NR_stty		 31

#define __NR_gtty		 32

#define __NR_access		 33

#define __NR_nice		 34

#define __NR_ftime		 35

#define __NR_sync		 36

#define __NR_kill		 37

#define __NR_rename		 38

#define __NR_mkdir		 39

#define __NR_rmdir		 40

#define __NR_dup		 41

#define __NR_pipe		 42

#define __NR_times		 43

#define __NR_prof		 44

#define __NR_brk		 45

#define __NR_setgid		 46

#define __NR_getgid		 47

#define __NR_signal		 48

#define __NR_geteuid		 49

#define __NR_getegid		 50

#define __NR_acct		 51

#define __NR_umount2		 52

#define __NR_lock		 53

#define __NR_ioctl		 54

#define __NR_fcntl		 55

#define __NR_mpx		 56

#define __NR_setpgid		 57

#define __NR_ulimit		 58

#define __NR_oldolduname	 59

#define __NR_umask		 60

#define __NR_chroot		 61

#define __NR_ustat		 62

#define __NR_dup2		 63

#define __NR_getppid		 64

#define __NR_getpgrp		 65

#define __NR_setsid		 66

#define __NR_sigaction		 67

#define __NR_sgetmask		 68

#define __NR_ssetmask		 69

#define __NR_setreuid		 70

#define __NR_setregid		 71

#define __NR_sigsuspend		 72

#define __NR_sigpending		 73

#define __NR_sethostname	 74

#define __NR_setrlimit		 75

#define __NR_getrlimit		 76

#define __NR_getrusage		 77

#define __NR_gettimeofday	 78

#define __NR_settimeofday	 79

#define __NR_getgroups		 80

#define __NR_setgroups		 81

#define __NR_select		 82

#define __NR_symlink		 83

#define __NR_oldlstat		 84

#define __NR_readlink		 85

#define __NR_uselib		 86

#define __NR_swapon		 87

#define __NR_reboot		 88

#define __NR_readdir		 89

#define __NR_mmap		 90

#define __NR_munmap		 91

#define __NR_truncate		 92

#define __NR_ftruncate		 93

#define __NR_fchmod		 94

#define __NR_fchown		 95

#define __NR_getpriority	 96

#define __NR_setpriority	 97

#define __NR_profil		 98

#define __NR_statfs		 99

#define __NR_fstatfs		100

#define __NR_ioperm		101

#define __NR_socketcall		102

#define __NR_syslog		103

#define __NR_setitimer		104

#define __NR_getitimer		105

#define __NR_stat		106

#define __NR_lstat		107

#define __NR_fstat		108

#define __NR_olduname		109

#define __NR_iopl		110

#define __NR_vhangup		111

#define __NR_idle		112

#define __NR_vm86		113

#define __NR_wait4		114

#define __NR_swapoff		115

#define __NR_sysinfo		116

#define __NR_ipc		117

#define __NR_fsync		118

#define __NR_sigreturn		119

#define __NR_clone		120

#define __NR_setdomainname	121

#define __NR_uname		122

#define __NR_modify_ldt		123

#define __NR_adjtimex		124

#define __NR_mprotect		125

#define __NR_sigprocmask	126

#define __NR_create_module	127

#define __NR_init_module	128

#define __NR_delete_module	129

#define __NR_get_kernel_syms	130

#define __NR_quotactl		131

#define __NR_getpgid		132

#define __NR_fchdir		133

#define __NR_bdflush		134

#define __NR_sysfs		135

#define __NR_personality	136

#define __NR_afs_syscall	137 /* Syscall for Andrew File System */

#define __NR_setfsuid		138

#define __NR_setfsgid		139

#define __NR__llseek		140

#define __NR_getdents		141

#define __NR__newselect		142

#define __NR_flock		143

#define __NR_msync		144

#define __NR_readv		145

#define __NR_writev		146

#define __NR_getsid		147

#define __NR_fdatasync		148

#define __NR__sysctl		149

#define __NR_mlock		150

#define __NR_munlock		151

#define __NR_mlockall		152

#define __NR_munlockall		153

#define __NR_sched_setparam		154

#define __NR_sched_getparam		155

#define __NR_sched_setscheduler		156

#define __NR_sched_getscheduler		157

#define __NR_sched_yield		158

#define __NR_sched_get_priority_max	159

#define __NR_sched_get_priority_min	160

#define __NR_sched_rr_get_interval	161

#define __NR_nanosleep		162

#define __NR_mremap		163

#define __NR_setresuid		164

#define __NR_getresuid		165

#define __NR_query_module	166

#define __NR_poll		167

#define __NR_nfsservctl		168

#define __NR_setresgid		169

#define __NR_getresgid		170

#define __NR_prctl		171

#define __NR_rt_sigreturn	172

#define __NR_rt_sigaction	173

#define __NR_rt_sigprocmask	174

#define __NR_rt_sigpending	175

#define __NR_rt_sigtimedwait	176

#define __NR_rt_sigqueueinfo	177

#define __NR_rt_sigsuspend	178

#define __NR_pread		179

#define __NR_pwrite		180

#define __NR_chown		181

#define __NR_getcwd		182

#define __NR_capget		183

#define __NR_capset		184

#define __NR_sigaltstack	185

#define __NR_sendfile		186

#define __NR_getpmsg		187	/* some people actually want streams */

#define __NR_putpmsg		188	/* some people actually want streams */

#define __NR_vfork		189

#define __NR_ugetrlimit		190	/* SuS compliant getrlimit */

#define __NR_readahead		191

#define __NR_mmap2		192

#define __NR_truncate64		193

#define __NR_ftruncate64	194

#define __NR_stat64		195

#define __NR_lstat64		196

#define __NR_fstat64		197

#define __NR_pciconfig_read	198

#define __NR_pciconfig_write	199

#define __NR_pciconfig_iobase	200

#define __NR_multiplexer	201

#define __NR_getdents64		202

#define __NR_pivot_root		203

#define __NR_fcntl64		204

#define __NR_madvise		205

#define __NR_mincore		206

#define __NR_gettid		207

#define __NR_tkill		208

#define __NR_setxattr		209

#define __NR_lsetxattr		210

#define __NR_fsetxattr		211

#define __NR_getxattr		212

#define __NR_lgetxattr		213

#define __NR_fgetxattr		214

#define __NR_listxattr		215

#define __NR_llistxattr		216

#define __NR_flistxattr		217

#define __NR_removexattr	218

#define __NR_lremovexattr	219

#define __NR_fremovexattr	220

#define __NR_futex		221

#define __NR_sched_setaffinity	222

#define __NR_sched_getaffinity	223

/* 224 currently unused */

#define __NR_tuxcall		225

#define __NR_sendfile64		226

#define __NR_io_setup		227

#define __NR_io_destroy		228

#define __NR_io_getevents	229

#define __NR_io_submit		230

#define __NR_io_cancel		231

#define __NR_set_tid_address	232

#define __NR_fadvise64		233

#define __NR_exit_group		234

#define __NR_lookup_dcookie	235

#define __NR_epoll_create	236

#define __NR_epoll_ctl		237

#define __NR_epoll_wait		238

#define __NR_remap_file_pages	239

#define __NR_timer_create	240

#define __NR_timer_settime	241

#define __NR_timer_gettime	242

#define __NR_timer_getoverrun	243

#define __NR_timer_delete	244

#define __NR_clock_settime	245

#define __NR_clock_gettime	246

#define __NR_clock_getres	247

#define __NR_clock_nanosleep	248

#define __NR_swapcontext	249

#define __NR_tgkill		250

#define __NR_utimes		251

#define __NR_statfs64		252

#define __NR_fstatfs64		253

#define __NR_fadvise64_64	254

#define __NR_rtas		255

#define __NR_sys_debug_setcontext 256

/* Number 257 is reserved for vserver */

/* Number 258 is reserved for new sys_remap_file_pages */

/* Number 259 is reserved for new sys_mbind */

/* Number 260 is reserved for new sys_get_mempolicy */

/* Number 261 is reserved for new sys_set_mempolicy */

#define __NR_mq_open		262

#define __NR_mq_unlink		263

#define __NR_mq_timedsend	264

#define __NR_mq_timedreceive	265

#define __NR_mq_notify		266

#define __NR_mq_getsetattr	267

#define __NR_kexec_load		268

#define __NR_add_key		269

#define __NR_request_key	270

#define __NR_keyctl		271

#define __NR_waitid		272

#define __NR_ioprio_set		273

#define __NR_ioprio_get		274

#define __NR_inotify_init	275

#define __NR_inotify_add_watch	276

#define __NR_inotify_rm_watch	277

#define syscall_weak(name,wsym,sym) \

.text; \

.type wsym,@function; \

.weak wsym; \

wsym: ; \

.type sym,@function; \

.global sym; \

sym: \

	li	0,__NR_##name; \

	b __unified_syscall

#define syscall(name,sym) \

.text; \

.type sym,@function; \

.global sym; \

sym: \

	li	0,__NR_##name; \

	b __unified_syscall

.global __testandset

.type __testandset,@function

.align 2

__testandset:

1:	lwarx	5,0,3

	li	0,1

	stwcx.	0,0,3

	bne-	1b

	mr	3,5

	blr

.size __testandset,.-__testandset

#ifdef __ELF__

.section .note.GNU-stack,"",%progbits

#endif

#include <dietfeatures.h>

#include "syscalls.h"

.text

.type exit,@function

.weak exit

exit:

.type _exit,@function

.global _exit

_exit:

	li	0,__NR_exit

.global __unified_syscall

__unified_syscall:

	sc

	bnslr+

.global error_unified_syscall

error_unified_syscall:

#ifdef WANT_THREAD_SAFE

	stwu	1,-16(1)

	mflr	0

	stw	0,20(1)

	stw	3,12(1)

	bl	__errno_location

	lwz	0,12(1)

	stw	0,0(3)

	lwz	0,20(1)

	mtlr	0

	addi	1,1,16

#else

	lis	9,errno@ha

	stw	3,errno@l(9)

#endif

	li	3,-1

/* here we go and "reuse" the return for weak-void functions */

#include "dietuglyweaks.h"

	blr

#ifdef __ELF__

.section .note.GNU-stack,"",%progbits

#endif