From 4dc998596f0ed8c9f1da6dc57a5640e3928cc12b Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:23:45 +0100 Subject: microblaze: Fix setjmp/longjmp Some state and registers are missing from setjmp/longjmp handling. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/__longjmp.S | 36 +++++++++++++----------- libc/sysdeps/linux/microblaze/bits/setjmp.h | 10 +++++-- libc/sysdeps/linux/microblaze/setjmp.S | 43 +++++++++++++++-------------- 3 files changed, 50 insertions(+), 39 deletions(-) (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/__longjmp.S b/libc/sysdeps/linux/microblaze/__longjmp.S index 2752f0bd3..c4423bec5 100644 --- a/libc/sysdeps/linux/microblaze/__longjmp.S +++ b/libc/sysdeps/linux/microblaze/__longjmp.S @@ -16,30 +16,34 @@ #define _ASM #include -#include +#include .text -C_ENTRY(__longjmp): + .globl C_SYMBOL_NAME(__longjmp) + .align 4 +C_SYMBOL_NAME(__longjmp): /* load registers from memory to r5 (arg0) */ lwi r1, r5, 0 lwi r15, r5, 4 - lwi r18, r5, 8 - lwi r19, r5, 12 - lwi r20, r5, 16 - lwi r21, r5, 20 - lwi r22, r5, 24 - lwi r23, r5, 28 - lwi r24, r5, 32 - lwi r25, r5, 36 - lwi r26, r5, 40 - lwi r27, r5, 44 - lwi r28, r5, 48 - lwi r29, r5, 52 - lwi r30, r5, 56 + lwi r2, r5, 8 + lwi r13, r5, 12 + lwi r18, r5, 16 + lwi r19, r5, 20 + lwi r20, r5, 24 + lwi r21, r5, 28 + lwi r22, r5, 32 + lwi r23, r5, 36 + lwi r24, r5, 40 + lwi r25, r5, 44 + lwi r26, r5, 48 + lwi r27, r5, 52 + lwi r28, r5, 56 + lwi r29, r5, 60 + lwi r30, r5, 64 + lwi r31, r5, 68 addi r3, r0, 1 /* return val */ rtsd r15, 8 /* normal return */ nop -C_END(__longjmp) libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/microblaze/bits/setjmp.h b/libc/sysdeps/linux/microblaze/bits/setjmp.h index d966efd2b..0c0573cd7 100644 --- a/libc/sysdeps/linux/microblaze/bits/setjmp.h +++ b/libc/sysdeps/linux/microblaze/bits/setjmp.h @@ -28,12 +28,16 @@ typedef struct /* Link pointer. */ void *__lp; - /* Callee-saved registers r18-r30. */ - int __regs[13]; + /* SDA pointers */ + void *__SDA; + void *__SDA2; + + /* Callee-saved registers r18-r31. */ + int __regs[14]; } __jmp_buf[1]; #endif -#define JB_SIZE (4 * 15) +#define JB_SIZE (4 * 18) /* Test if longjmp to JMPBUF would unwind the frame containing a local variable at ADDRESS. */ diff --git a/libc/sysdeps/linux/microblaze/setjmp.S b/libc/sysdeps/linux/microblaze/setjmp.S index 7068d4b40..7acb9ea5d 100644 --- a/libc/sysdeps/linux/microblaze/setjmp.S +++ b/libc/sysdeps/linux/microblaze/setjmp.S @@ -8,7 +8,7 @@ * This file is subject to the terms and conditions of the GNU Lesser * General Public License. See the file COPYING.LIB in the main * directory of this archive for more details. - * + * * Written by Miles Bader */ @@ -16,38 +16,41 @@ #define _ASM #include -#include +#include .text -C_ENTRY(setjmp): - addi r6, r0, 1 /* Save the signal mask. */ + .globl C_SYMBOL_NAME(setjmp) + .align 4 +C_SYMBOL_NAME(setjmp): braid C_SYMBOL_NAME(__sigsetjmp) - nop + addi r6, r0, 1 /* Save the signal mask. */ .globl C_SYMBOL_NAME(_setjmp) C_SYMBOL_NAME(_setjmp): - add r6, r0, r0 /* Don't save the signal mask. */ + and r6, r0, r0 /* Don't save the signal mask. */ .globl C_SYMBOL_NAME(__sigsetjmp) C_SYMBOL_NAME(__sigsetjmp): /* Save registers relative to r5 (arg0)*/ swi r1, r5, 0 /* stack pointer */ swi r15, r5, 4 /* link register */ - swi r18, r5, 8 /* assembler temp */ - swi r19, r5, 12 /* now call-preserved regs */ - swi r20, r5, 16 - swi r21, r5, 20 - swi r22, r5, 24 - swi r23, r5, 28 - swi r24, r5, 32 - swi r25, r5, 36 - swi r26, r5, 40 - swi r27, r5, 44 - swi r28, r5, 48 - swi r29, r5, 52 - swi r30, r5, 56 + swi r2, r5, 8 /* SDA and SDA2 ptrs */ + swi r13, r5, 12 + swi r18, r5, 16 /* assembler temp */ + swi r19, r5, 20 /* now call-preserved regs */ + swi r20, r5, 24 + swi r21, r5, 28 + swi r22, r5, 32 + swi r23, r5, 36 + swi r24, r5, 40 + swi r25, r5, 44 + swi r26, r5, 48 + swi r27, r5, 52 + swi r28, r5, 56 + swi r29, r5, 60 + swi r30, r5, 64 + swi r31, r5, 68 /* Make a tail call to __sigjmp_save; it takes the same args. */ braid C_SYMBOL_NAME(__sigjmp_save) nop -C_END(setjmp) -- cgit v1.2.3 From 2be86fb41e29def10eec97e5f663cc8147227358 Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:25:30 +0100 Subject: microblaze: Fix crt bootstrap Rework crt bootstrap to work with the new __uClibc_main(), and hardwire crt init/fini code since the awk approach to generating it on the fly doesn't work for microblaze. The output from the gcc 4.1.2 compiler is scrambled so that the tags expected by the awk script to bracket the init/fini entry and exit code no longer do. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/crt1.S | 61 ++++++++++++++++++++++++++++++++++++ libc/sysdeps/linux/microblaze/crti.S | 41 ++++++++++++++++++++++++ libc/sysdeps/linux/microblaze/crtn.S | 45 ++++++++++++++++++++++++++ 3 files changed, 147 insertions(+) create mode 100644 libc/sysdeps/linux/microblaze/crt1.S create mode 100644 libc/sysdeps/linux/microblaze/crti.S create mode 100644 libc/sysdeps/linux/microblaze/crtn.S (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/crt1.S b/libc/sysdeps/linux/microblaze/crt1.S new file mode 100644 index 000000000..e9564cfba --- /dev/null +++ b/libc/sysdeps/linux/microblaze/crt1.S @@ -0,0 +1,61 @@ +/* + * libc/sysdeps/linux/microblaze/crt1.S -- Initial program entry point for linux/microblaze + * + * Copyright (C) 2009 Meyer Sound Laboratories + * Copyright (C) 2003 John Williams + * Copyright (C) 2001,2002 NEC Corporation + * Copyright (C) 2001,2002 Miles Bader + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader + */ + +#include + +/* Upon entry, the stack contains the following data: + argc, argv[0], ..., argv[argc-1], 0, envp[0], ..., 0 +*/ + + .text + .globl C_SYMBOL_NAME(_start) + .align 4 +C_SYMBOL_NAME(_start): + + /* Load SDAs */ + la r2, r0, C_SYMBOL_NAME(_SDA2_BASE_) /* in the original source r2 was SDA, and r13 was SDA2, no idea why */ + la r13, r0, C_SYMBOL_NAME(_SDA_BASE_) + + /* + Preparing arguments for uClibc's startup routine. + The routine has 6 arguments, so 5 of them are placed + into registers, one on the stack + */ + + la r5, r0, C_SYMBOL_NAME(main) /* Arg 1: main() */ + lw r6, r0, r1 /* Arg 2: argc */ + addi r7, r1, 4 /* Arg 3: argv */ + la r8, r0, _init /* Arg 4: init */ + la r9, r0, _fini /* Arg 5: fini */ + addk r10,r0,r0 /* Arg 6: rtld_fini = NULL */ + + + /* Reserve space for __uClibc_main to save parameters + (Microblaze ABI stack calling convention) + and for stack_end argument to __uClibc_main */ + add r3, r1, r0 + addi r1, r1, -32 + + /* tail-call uClibc's startup routine */ + brid C_SYMBOL_NAME(__uClibc_main) + swi r3, r1, 28 /* Arg 7: stack end [DELAY SLOT] */ + +/* Define a symbol for the first piece of initialized data. */ + .data + .globl __data_start +__data_start: + .long 0 + .weak data_start + data_start = __data_start diff --git a/libc/sysdeps/linux/microblaze/crti.S b/libc/sysdeps/linux/microblaze/crti.S new file mode 100644 index 000000000..e00396897 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/crti.S @@ -0,0 +1,41 @@ +/* + * libc/sysdeps/linux/microblaze/crti.S -- init/fini entry code for microblaze + * (baselined with gcc 4.1.2) + * + * Copyright (C) 2010 Digital Design Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + */ + +#define END_INIT +#define END_FINI +#define ALIGN +#include + +/*@HEADER_ENDS*/ + + .section .init + .align 2 + .globl _init +_init: + addik r1, r1, -32 + swi r19, r1, 28 + addk r19, r1, r0 + swi r15, r1, 0 + + ALIGN + END_INIT + + .section .fini + .align 2 + .globl _fini +_fini: + addik r1, r1, -32 + swi r19, r1, 28 + addk r19, r1, r0 + swi r15, r1, 0 + + ALIGN + END_FINI diff --git a/libc/sysdeps/linux/microblaze/crtn.S b/libc/sysdeps/linux/microblaze/crtn.S new file mode 100644 index 000000000..da8c920ef --- /dev/null +++ b/libc/sysdeps/linux/microblaze/crtn.S @@ -0,0 +1,45 @@ +/* + * libc/sysdeps/linux/microblaze/crtn.S -- init/fini exit code for microblaze + * (baselined with gcc 4.1.2) + * + * Copyright (C) 2010 Digital Design Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + */ + +#define END_INIT +#define END_FINI +#define ALIGN +#include + + .section .init + .align 2 + .globl _init + .ent _init + + lwi r15, r1, 0 + lwi r19, r1, 28 + rtsd r15, 8 + addik r1, r1, 32 # Delay slot + + .end _init +$Lfe2: + .size _init,$Lfe2-_init + + .section .fini + .align 2 + .globl _fini + .ent _fini + + lwi r15, r1, 0 + lwi r19, r1, 28 + rtsd r15, 8 + addik r1, r1, 32 # Delay slot + + .end _fini +$Lfe3: + .size _fini,$Lfe3-_fini + +/*@TRAILER_BEGINS*/ -- cgit v1.2.3 From 54f73a98f6b841f05484e2275c860ae61d49aae2 Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:27:57 +0100 Subject: microblaze: syscall interface Fix the microblaze syscall interface. Recent mainline kernels no longer carry userland code to invoke syscalls and microblaze can use the uClibc generic code. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/bits/syscalls.h | 54 ++++++++++++++++++++++++--- libc/sysdeps/linux/microblaze/syscall.c | 51 ------------------------- 2 files changed, 48 insertions(+), 57 deletions(-) delete mode 100644 libc/sysdeps/linux/microblaze/syscall.c (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/bits/syscalls.h b/libc/sysdeps/linux/microblaze/bits/syscalls.h index b21851333..f4bdc4522 100644 --- a/libc/sysdeps/linux/microblaze/bits/syscalls.h +++ b/libc/sysdeps/linux/microblaze/bits/syscalls.h @@ -4,12 +4,54 @@ # error "Never use directly; include instead." #endif -#include -/* Do something very evil for now. Until we create our own syscall - * macros, short circuit bits/sysnum.h and use asm/unistd.h instead */ -#warning "fixme -- add arch specific syscall macros.h" -#include +#ifndef __ASSEMBLER__ -#endif /* _BITS_SYSCALLS_H */ +#include + +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({ \ + register int __ret __asm__("r3"); \ + register int _scno __asm__("r12") = name; \ + LOAD_ARGS_##nr (args); \ + __asm__ __volatile__("brki r14, 0x8" \ + : "=r" (__ret) \ + : "r"(_scno) ASM_ARGS_##nr \ + : __SYSCALL_CLOBBERS ); \ + __ret; \ + }) + +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int)(val) >= 0xfffff001U) +#define LOAD_ARGS_0() do { } while(0) +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + register int _a1 __asm__("r5") = (int)(a1); \ + LOAD_ARGS_0() +#define ASM_ARGS_1 ASM_ARGS_0, "r"(_a1) +#define LOAD_ARGS_2(a1, a2) \ + register int _a2 __asm__("r6") = (int)(a2); \ + LOAD_ARGS_1(a1) +#define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + register int _a3 __asm__("r7") = (int)(a3); \ + LOAD_ARGS_2(a1, a2) +#define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + register int _a4 __asm__("r8") = (int)(a4); \ + LOAD_ARGS_3(a1, a2, a3) +#define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + register int _a5 __asm__("r9") = (int)(a5); \ + LOAD_ARGS_4(a1, a2, a3, a4) +#define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + register int _a6 __asm__("r10") = (int)(a6); \ + LOAD_ARGS_5(a1, a2, a3, a4, a5) +#define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6) + +#define __SYSCALL_CLOBBERS "r4", "r14", "cc", "memory" + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/microblaze/syscall.c b/libc/sysdeps/linux/microblaze/syscall.c deleted file mode 100644 index 0e07e4595..000000000 --- a/libc/sysdeps/linux/microblaze/syscall.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * libc/sysdeps/linux/microblaze/syscall.c -- generic syscall function for linux/microblaze - * - * Copyright (C) 2003 John Williams - * Copyright (C) 2002 NEC Corporation - * Copyright (C) 2002 Miles Bader - * - * This file is subject to the terms and conditions of the GNU Lesser - * General Public License. See the file COPYING.LIB in the main - * directory of this archive for more details. - * - * Written by Miles Bader - */ - -#include -#include - -typedef unsigned long arg_t; - -/* Invoke `system call' NUM, passing it the remaining arguments. - This is completely system-dependent, and not often useful. */ -long -syscall (long num, arg_t a1, arg_t a2, arg_t a3, arg_t a4, arg_t a5, arg_t a6) -{ - /* We don't know how many arguments are valid, so A5 and A6 are fetched - off the stack even for (the majority of) system calls with fewer - arguments; hopefully this won't cause any problems. A1-A4 are in - registers, so they're OK. */ - register arg_t a __asm__ (SYSCALL_ARG0) = a1; - register arg_t b __asm__ (SYSCALL_ARG1) = a2; - register arg_t c __asm__ (SYSCALL_ARG2) = a3; - register arg_t d __asm__ (SYSCALL_ARG3) = a4; - register arg_t e __asm__ (SYSCALL_ARG4) = a5; - register arg_t f __asm__ (SYSCALL_ARG5) = a6; - register unsigned long syscall __asm__ (SYSCALL_NUM) = num; - register unsigned long ret __asm__ (SYSCALL_RET); - unsigned long ret_sav; - - *((unsigned long *)0xFFFF4004) = (unsigned int)('+'); - __asm__ ("brlid r17, 08x; nop;" - : "=r" (ret) - : "r" (syscall), "r" (a), "r" (b), "r" (c), "r" (d), "r" (e), "r" (f) - : SYSCALL_CLOBBERS); - - ret_sav=ret; - *((unsigned long *)0xFFFF4004) = (unsigned int)('-'); - - - - __syscall_return (long, ret); -} -- cgit v1.2.3 From 975ce6359486ec3d2905e57d11ef22088b04b85f Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:30:02 +0100 Subject: microblaze: vfork/clone interface Fix the microblaze vfork() and clone() implementations. Add support for clone2(). Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/clone.c | 71 ++++++++++++++++------------------- libc/sysdeps/linux/microblaze/vfork.S | 30 ++++++++------- 2 files changed, 49 insertions(+), 52 deletions(-) (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/clone.c b/libc/sysdeps/linux/microblaze/clone.c index a47ee8c68..d92100865 100644 --- a/libc/sysdeps/linux/microblaze/clone.c +++ b/libc/sysdeps/linux/microblaze/clone.c @@ -1,52 +1,47 @@ /* - * libc/sysdeps/linux/microblaze/clone.c -- `clone' syscall for linux/microblaze + * Copyright (C) 2004 Atmel Corporation * - * Copyright (C) 2003 John Williams - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU Lesser - * General Public License. See the file COPYING.LIB in the main - * directory of this archive for more details. - * - * Written by Miles Bader - * Microblaze port by John Williams + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. */ - +#include #include #include +#include -int -clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg) +int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...) { - register unsigned long rval __asm__ (SYSCALL_RET) = -EINVAL; + int rval = -EINVAL; + if (fn && child_stack) + rval = INTERNAL_SYSCALL(clone, 0, 2, flags, child_stack); + + if (rval == 0) + { + int exitCode = fn(arg); + rval = INTERNAL_SYSCALL(exit, 0, 1, exitCode); + } - if (fn && child_stack) - { - register unsigned long syscall __asm__ (SYSCALL_NUM); - register unsigned long arg0 __asm__ (SYSCALL_ARG0); - register unsigned long arg1 __asm__ (SYSCALL_ARG1); + return rval; +} - /* Clone this thread. */ - arg0 = flags; - arg1 = (unsigned long)child_stack; - syscall = __NR_clone; - __asm__ __volatile__ ("bralid r17, trap;nop;" - : "=r" (rval), "=r" (syscall) - : "1" (syscall), "r" (arg0), "r" (arg1) - : SYSCALL_CLOBBERS); +#ifdef __NR_clone2 +int +__clone2(int (*fn)(void *arg), void *child_stack, size_t stack_size, + int flags, void *arg, ...) +{ + int rval = -EINVAL; + if (fn && child_stack) + { + rval = INTERNAL_SYSCALL(clone2, 0, 3, flags, child_stack, stack_size); + } - if (rval == 0) - /* In child thread, call FN and exit. */ + if (rval == 0) { - arg0 = (*fn) (arg); - syscall = __NR_exit; - __asm__ __volatile__ ("bralid r17, trap;nop;" - : "=r" (rval), "=r" (syscall) - : "1" (syscall), "r" (arg0) - : SYSCALL_CLOBBERS); + int exitCode = fn(arg); + rval = INTERNAL_SYSCALL(exit, 0, 1, exitCode); } - } - __syscall_return (int, rval); + return rval; } +#endif diff --git a/libc/sysdeps/linux/microblaze/vfork.S b/libc/sysdeps/linux/microblaze/vfork.S index 42458308a..c4b4dbf2f 100644 --- a/libc/sysdeps/linux/microblaze/vfork.S +++ b/libc/sysdeps/linux/microblaze/vfork.S @@ -1,14 +1,14 @@ /* * libc/sysdeps/linux/microblaze/vfork.S -- `vfork' syscall for linux/microblaze * + * Copyright (C) 2003 John Williams * Copyright (C) 2001 NEC Corporation * Copyright (C) 2001 Miles Bader - * Copyright (C) 2003 John Williams - * Copyright (C) 2000-2006 Erik Andersen * - * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. - */ -/* + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * * Written by Miles Bader * Microblaze port by John Williams */ @@ -18,7 +18,7 @@ #define _SYSCALL_H #include -#include +#include /* Clone the calling process, but without copying the whole address space. The calling process is suspended until the new process exits or is @@ -27,18 +27,20 @@ .global C_SYMBOL_NAME(errno) -C_ENTRY (__vfork): + .globl __vfork + .align 4 +__vfork: addi r12, r0, SYS_vfork - bralid r17, 0x08; - nop + brki r14, 0x08; addi r4, r3, 125 /* minimum err value */ blti r4, 1f /* is r3 < -125? */ - rtsd r15, 8 /* normal return */ - nop -1: sub r3, r3, r0 /* r3 = -r3 */ + bri 2f /* normal return */ +1: sub r3, r3, r0 /* r3 = -r3 */ swi r3, r0, C_SYMBOL_NAME(errno); - rtsd r15, 8 /* error return */ + /* state restore etc */ +2: rtsd r15, 8 /* error return */ nop -C_END(__vfork) + .size __vfork, .-__vfork + weak_alias(__vfork,vfork) libc_hidden_weak(vfork) -- cgit v1.2.3 From 20dc758d24f3e6fc19c3d8a3a029a32072cd6a29 Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:31:11 +0100 Subject: microblaze: Restore soft-float Software floating point for microblaze. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/fixdfsi.c | 85 +++++++++++++++++++ libc/sysdeps/linux/microblaze/floatlib.h | 140 +++++++++++++++++++++++++++++++ 2 files changed, 225 insertions(+) create mode 100644 libc/sysdeps/linux/microblaze/fixdfsi.c create mode 100644 libc/sysdeps/linux/microblaze/floatlib.h (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/fixdfsi.c b/libc/sysdeps/linux/microblaze/fixdfsi.c new file mode 100644 index 000000000..1611176aa --- /dev/null +++ b/libc/sysdeps/linux/microblaze/fixdfsi.c @@ -0,0 +1,85 @@ +/* +** libgcc support for software floating point. +** Copyright (C) 1991 by Pipeline Associates, Inc. All rights reserved. +** Permission is granted to do *anything* you want with this file, +** commercial or otherwise, provided this message remains intact. So there! +** I would appreciate receiving any updates/patches/changes that anyone +** makes, and am willing to be the repository for said changes (am I +** making a big mistake?). + +Warning! Only single-precision is actually implemented. This file +won't really be much use until double-precision is supported. + +However, once that is done, this file might eventually become a +replacement for libgcc1.c. It might also make possible +cross-compilation for an IEEE target machine from a non-IEEE +host such as a VAX. + +If you'd like to work on completing this, please talk to rms@gnu.ai.mit.edu. + +--> Double precision floating support added by James Carlson on 20 April 1998. + +** +** Pat Wood +** Pipeline Associates, Inc. +** pipeline!phw@motown.com or +** sun!pipeline!phw or +** uunet!motown!pipeline!phw +** +** 05/01/91 -- V1.0 -- first release to gcc mailing lists +** 05/04/91 -- V1.1 -- added float and double prototypes and return values +** -- fixed problems with adding and subtracting zero +** -- fixed rounding in truncdfsf2 +** -- fixed SWAP define and tested on 386 +*/ + +/* +** The following are routines that replace the libgcc soft floating point +** routines that are called automatically when -msoft-float is selected. +** The support single and double precision IEEE format, with provisions +** for byte-swapped machines (tested on 386). Some of the double-precision +** routines work at full precision, but most of the hard ones simply punt +** and call the single precision routines, producing a loss of accuracy. +** long long support is not assumed or included. +** Overall accuracy is close to IEEE (actually 68882) for single-precision +** arithmetic. I think there may still be a 1 in 1000 chance of a bit +** being rounded the wrong way during a multiply. I'm not fussy enough to +** bother with it, but if anyone is, knock yourself out. +** +** Efficiency has only been addressed where it was obvious that something +** would make a big difference. Anyone who wants to do this right for +** best speed should go in and rewrite in assembler. +** +** I have tested this only on a 68030 workstation and 386/ix integrated +** in with -msoft-float. +*/ + +#include "floatlib.h" + +/* convert double to int */ +long +__fixdfsi (double a1) +{ + register union double_long dl1; + register int exp; + register long l; + + dl1.d = a1; + + if (!dl1.l.upper && !dl1.l.lower) + return (0); + + exp = EXPD (dl1) - EXCESSD - 31; + l = MANTD (dl1); + + if (exp > 0) + return SIGND(dl1) ? (1<<31) : ((1ul<<31)-1); + + /* shift down until exp = 0 or l = 0 */ + if (exp < 0 && exp > -32 && l) + l >>= -exp; + else + return (0); + + return (SIGND (dl1) ? -l : l); +} diff --git a/libc/sysdeps/linux/microblaze/floatlib.h b/libc/sysdeps/linux/microblaze/floatlib.h new file mode 100644 index 000000000..817ba7de0 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/floatlib.h @@ -0,0 +1,140 @@ +/* +** libgcc support for software floating point. +** Copyright (C) 1991 by Pipeline Associates, Inc. All rights reserved. +** Permission is granted to do *anything* you want with this file, +** commercial or otherwise, provided this message remains intact. So there! +** I would appreciate receiving any updates/patches/changes that anyone +** makes, and am willing to be the repository for said changes (am I +** making a big mistake?). + +Warning! Only single-precision is actually implemented. This file +won't really be much use until double-precision is supported. + +However, once that is done, this file might eventually become a +replacement for libgcc1.c. It might also make possible +cross-compilation for an IEEE target machine from a non-IEEE +host such as a VAX. + +If you'd like to work on completing this, please talk to rms@gnu.ai.mit.edu. + +--> Double precision floating support added by James Carlson on 20 April 1998. + +** +** Pat Wood +** Pipeline Associates, Inc. +** pipeline!phw@motown.com or +** sun!pipeline!phw or +** uunet!motown!pipeline!phw +** +** 05/01/91 -- V1.0 -- first release to gcc mailing lists +** 05/04/91 -- V1.1 -- added float and double prototypes and return values +** -- fixed problems with adding and subtracting zero +** -- fixed rounding in truncdfsf2 +** -- fixed SWAP define and tested on 386 +*/ + +/* +** The following are routines that replace the libgcc soft floating point +** routines that are called automatically when -msoft-float is selected. +** The support single and double precision IEEE format, with provisions +** for byte-swapped machines (tested on 386). Some of the double-precision +** routines work at full precision, but most of the hard ones simply punt +** and call the single precision routines, producing a loss of accuracy. +** long long support is not assumed or included. +** Overall accuracy is close to IEEE (actually 68882) for single-precision +** arithmetic. I think there may still be a 1 in 1000 chance of a bit +** being rounded the wrong way during a multiply. I'm not fussy enough to +** bother with it, but if anyone is, knock yourself out. +** +** Efficiency has only been addressed where it was obvious that something +** would make a big difference. Anyone who wants to do this right for +** best speed should go in and rewrite in assembler. +** +** I have tested this only on a 68030 workstation and 386/ix integrated +** in with -msoft-float. +*/ + +#ifndef __FLOAT_LIB_H__ +#define __FLOAT_LIB_H__ +/* the following deal with IEEE single-precision numbers */ +#define EXCESS 126 +#define SIGNBIT 0x80000000 +#define HIDDEN (1 << 23) +#define SIGN(fp) ((fp) & SIGNBIT) +#define EXP(fp) (((fp) >> 23) & 0xFF) +#define MANT(fp) (((fp) & 0x7FFFFF) | HIDDEN) +#define PACK(s,e,m) ((s) | ((e) << 23) | (m)) + +/* the following deal with IEEE double-precision numbers */ +#define EXCESSD 1022 +#define HIDDEND (1 << 20) +#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF) +#define SIGND(fp) ((fp.l.upper) & SIGNBIT) +#define MANTD(fp) (((((fp.l.upper) & 0xFFFFF) | HIDDEND) << 10) | \ + (fp.l.lower >> 22)) +#define HIDDEND_LL ((long long)1 << 52) +#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL) +#define PACKD_LL(s,e,m) (((long long)((s)+((e)<<20))<<32)|(m)) + +/* define SWAP for 386/960 reverse-byte-order brain-damaged CPUs */ +union double_long { + double d; +#ifdef SWAP + struct { + unsigned long lower; + long upper; + } l; +#else + struct { + long upper; + unsigned long lower; + } l; +#endif + long long ll; +}; + +union float_long + { + float f; + long l; + }; + +#endif + +/* Functions defined in different files */ + +float __addsf3 (float, float); +float __subsf3 (float, float); +long __cmpsf2 (float, float); +float __mulsf3 (float, float); +float __divsf3 (float, float); +double __floatsidf (register long); +double __floatdidf (register long long); +float __floatsisf (register long ); +float __floatdisf (register long long ); +float __negsf2 (float); +double __negdf2 (double); +double __extendsfdf2 (float); +float __truncdfsf2 (double); +long __cmpdf2 (double, double); +long __fixsfsi (float); +long __fixdfsi (double); +long long __fixdfdi (double); +unsigned long __fixunsdfsi (double); +unsigned long long __fixunsdfdi (double); +double __adddf3 (double, double); +double __subdf3 (double, double); +double __muldf3 (double, double); +double __divdf3 (double, double); +int __gtdf2 (double, double); +int __gedf2 (double, double); +int __ltdf2 (double, double); +int __ledf2 (double, double); +int __eqdf2 (double, double); +int __nedf2 (double, double); +int __gtsf2 (float, float); +int __gesf2 (float, float); +int __ltsf2 (float, float); +int __lesf2 (float, float); +int __eqsf2 (float, float); +int __nesf2 (float, float); -- cgit v1.2.3 From bc71df2efbf1a007365b7c3841da781bdfdafce2 Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:32:13 +0100 Subject: microblaze: kernel headers Sync kernel header definitions with those used in recent mainline kernels. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/bits/fcntl.h | 17 ++++-- libc/sysdeps/linux/microblaze/bits/kernel_stat.h | 74 +++++++++++------------ libc/sysdeps/linux/microblaze/bits/kernel_types.h | 29 +++++---- libc/sysdeps/linux/microblaze/bits/poll.h | 8 +-- libc/sysdeps/linux/microblaze/sys/ptrace.h | 8 ++- 5 files changed, 72 insertions(+), 64 deletions(-) (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/bits/fcntl.h b/libc/sysdeps/linux/microblaze/bits/fcntl.h index bb6727ad8..44e8f3f5b 100644 --- a/libc/sysdeps/linux/microblaze/bits/fcntl.h +++ b/libc/sysdeps/linux/microblaze/bits/fcntl.h @@ -23,6 +23,9 @@ #include +#ifdef __USE_GNU +# include +#endif /* open/fcntl - O_SYNC is only implemented on blocks devices and on files located on an ext2 file system */ @@ -42,11 +45,11 @@ #define O_ASYNC 020000 #ifdef __USE_GNU -# define O_DIRECTORY 040000 /* Must be a directory. */ -# define O_NOFOLLOW 0100000 /* Do not follow links. */ -# define O_DIRECT 0200000 /* Direct disk access. */ -# define O_NOATIME 01000000 /* Do not set atime. */ -# define O_CLOEXEC 02000000 /* set close_on_exec */ +# define O_DIRECTORY 0200000 /* Must be a directory. */ +# define O_NOFOLLOW 0400000 /* Do not follow links. */ +# define O_DIRECT 040000 /* Direct disk access. */ +# define O_NOATIME 01000000 /* Do not set atime. */ +# define O_CLOEXEC 02000000 /* set close_on_exec */ #endif /* For now Linux has synchronisity options for data and read operations. @@ -58,7 +61,7 @@ #endif #ifdef __USE_LARGEFILE64 -# define O_LARGEFILE 0400000 +# define O_LARGEFILE 0100000 #endif /* Values for the second argument to `fcntl'. */ @@ -96,6 +99,8 @@ # define F_NOTIFY 1026 /* Request notfications on a directory. */ # define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with close-on-exit set on new fd. */ +# define F_SETPIPE_SZ 1031 /* Set of pipe page size array */ +# define F_GETPIPE_SZ 1032 /* Get of pipe page size array */ #endif /* For F_[GET|SET]FL. */ diff --git a/libc/sysdeps/linux/microblaze/bits/kernel_stat.h b/libc/sysdeps/linux/microblaze/bits/kernel_stat.h index de35488bd..2c5eb28af 100644 --- a/libc/sysdeps/linux/microblaze/bits/kernel_stat.h +++ b/libc/sysdeps/linux/microblaze/bits/kernel_stat.h @@ -9,50 +9,44 @@ struct kernel_stat { - __kernel_dev_t st_dev; - __kernel_ino_t st_ino; - __kernel_mode_t st_mode; - __kernel_nlink_t st_nlink; - __kernel_uid_t st_uid; - __kernel_gid_t st_gid; - __kernel_dev_t st_rdev; - __kernel_off_t st_size; - unsigned long st_blksize; - unsigned long st_blocks; - struct timespec st_atim; - struct timespec st_mtim; - struct timespec st_ctim; - unsigned long __unused4; - unsigned long __unused5; + unsigned long st_dev; /* Device. */ + unsigned long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long st_rdev; /* Device number, if device. */ + unsigned long __pad1; + long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long st_blocks; /* Number 512-byte blocks allocated. */ + struct timespec st_atim; + struct timespec st_mtim; + struct timespec st_ctim; + unsigned int __unused4; + unsigned int __unused5; }; struct kernel_stat64 { - __kernel_dev_t st_dev; - unsigned long __unused0; - unsigned long __unused1; - - __kernel_ino64_t st_ino; - - __kernel_mode_t st_mode; - __kernel_nlink_t st_nlink; - - __kernel_uid_t st_uid; - __kernel_gid_t st_gid; - - __kernel_dev_t st_rdev; - unsigned long __unused2; - unsigned long __unused3; - - __kernel_loff_t st_size; - unsigned long st_blksize; - - unsigned long __unused4; /* future possible st_blocks high bits */ - unsigned long st_blocks; /* Number 512-byte blocks allocated. */ - - struct timespec st_atim; - struct timespec st_mtim; - struct timespec st_ctim; + unsigned long long st_dev; /* Device. */ + unsigned long long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long long st_rdev; /* Device number, if device. */ + unsigned long long __pad1; + long long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long long st_blocks; /* Number 512-byte blocks allocated. */ + struct timespec st_atim; + struct timespec st_mtim; + struct timespec st_ctim; + unsigned int __unused4; + unsigned int __unused5; }; #endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/microblaze/bits/kernel_types.h b/libc/sysdeps/linux/microblaze/bits/kernel_types.h index 1ca2dae30..2a7057502 100644 --- a/libc/sysdeps/linux/microblaze/bits/kernel_types.h +++ b/libc/sysdeps/linux/microblaze/bits/kernel_types.h @@ -13,18 +13,17 @@ * Microblaze port by John Williams */ -#ifndef __MICROBLAZE_POSIX_TYPES_H__ -#define __MICROBLAZE_POSIX_TYPES_H__ +#ifndef _ASM_MICROBLAZE_POSIX_TYPES_H +#define _ASM_MICROBLAZE_POSIX_TYPES_H -typedef unsigned int __kernel_dev_t; +typedef unsigned long __kernel_dev_t; typedef unsigned long __kernel_ino_t; -typedef unsigned long long __kernel_ino64_t; -typedef unsigned int __kernel_mode_t; -typedef unsigned int __kernel_nlink_t; +//typedef unsigned long long __kernel_ino64_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned long __kernel_nlink_t; typedef long __kernel_off_t; -typedef long long __kernel_loff_t; typedef int __kernel_pid_t; -typedef unsigned short __kernel_ipc_pid_t; +typedef int __kernel_ipc_pid_t; typedef unsigned int __kernel_uid_t; typedef unsigned int __kernel_gid_t; typedef unsigned int __kernel_size_t; @@ -33,6 +32,8 @@ typedef int __kernel_ptrdiff_t; typedef long __kernel_time_t; typedef long __kernel_suseconds_t; typedef long __kernel_clock_t; +typedef int __kernel_timer_t; +typedef int __kernel_clockid_t; typedef int __kernel_daddr_t; typedef char * __kernel_caddr_t; typedef unsigned short __kernel_uid16_t; @@ -40,9 +41,13 @@ typedef unsigned short __kernel_gid16_t; typedef unsigned int __kernel_uid32_t; typedef unsigned int __kernel_gid32_t; -typedef unsigned short __kernel_old_uid_t; -typedef unsigned short __kernel_old_gid_t; -typedef __kernel_dev_t __kernel_old_dev_t; +typedef unsigned int __kernel_old_uid_t; +typedef unsigned int __kernel_old_gid_t; +typedef unsigned int __kernel_old_dev_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif typedef struct { #ifdef __USE_ALL @@ -52,4 +57,4 @@ typedef struct { #endif } __kernel_fsid_t; -#endif /* __MICROBLAZE_POSIX_TYPES_H__ */ +#endif /* _ASM_MICROBLAZE_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/microblaze/bits/poll.h b/libc/sysdeps/linux/microblaze/bits/poll.h index f7a739315..78ee877c0 100644 --- a/libc/sysdeps/linux/microblaze/bits/poll.h +++ b/libc/sysdeps/linux/microblaze/bits/poll.h @@ -29,10 +29,10 @@ #ifdef __USE_XOPEN /* These values are defined in XPG4.2. */ -# define POLLRDNORM 0x040 /* Normal data may be read. */ -# define POLLRDBAND 0x080 /* Priority data may be read. */ -# define POLLWRNORM POLLOUT /* Writing now will not block. */ -# define POLLWRBAND 0x100 /* Priority data may be written. */ +# define POLLRDNORM 0x0040 /* Normal data may be read. */ +# define POLLRDBAND 0x0080 /* Priority data may be read. */ +# define POLLWRNORM 0x0100 /* Writing now will not block. */ +# define POLLWRBAND 0x0200 /* Priority data may be written. */ #endif /* Event types always implicitly polled for. These bits need not be set in diff --git a/libc/sysdeps/linux/microblaze/sys/ptrace.h b/libc/sysdeps/linux/microblaze/sys/ptrace.h index b7a9adf25..26d153ce1 100644 --- a/libc/sysdeps/linux/microblaze/sys/ptrace.h +++ b/libc/sysdeps/linux/microblaze/sys/ptrace.h @@ -65,12 +65,16 @@ enum __ptrace_request PTRACE_KILL = 8, #define PT_KILL PTRACE_KILL + /* Single step the process. */ + PTRACE_SINGLESTEP = 9, +#define PT_STEP PTRACE_SINGLESTEP + /* Attach to a process that is already running. */ - PTRACE_ATTACH = 0x10, + PTRACE_ATTACH = 16, #define PT_ATTACH PTRACE_ATTACH /* Detach from a process attached to with PTRACE_ATTACH. */ - PTRACE_DETACH = 0x11, + PTRACE_DETACH = 17, #define PT_DETACH PTRACE_DETACH /* Continue and stop at the next (return from) syscall. */ -- cgit v1.2.3 From dd8572189cde0425a9c09b57d1d05f53a24c0365 Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:32:27 +0100 Subject: microblaze: misc headers Other header files for uClibc compilation. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/bits/stackinfo.h | 28 +++++++++++++++ .../linux/microblaze/bits/uClibc_arch_features.h | 4 +-- libc/sysdeps/linux/microblaze/bits/uClibc_page.h | 41 ++++++++++++++++++++++ libc/sysdeps/linux/microblaze/clinkage.h | 15 -------- 4 files changed, 71 insertions(+), 17 deletions(-) create mode 100644 libc/sysdeps/linux/microblaze/bits/stackinfo.h create mode 100644 libc/sysdeps/linux/microblaze/bits/uClibc_page.h delete mode 100644 libc/sysdeps/linux/microblaze/clinkage.h (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/bits/stackinfo.h b/libc/sysdeps/linux/microblaze/bits/stackinfo.h new file mode 100644 index 000000000..819e81974 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/stackinfo.h @@ -0,0 +1,28 @@ +/* Copyright (C) 1999 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* This file contains a bit of information about the stack allocation + of the processor. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +/* On microblaze the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h b/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h index 2a9422e23..86d00084c 100644 --- a/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/microblaze/bits/uClibc_arch_features.h @@ -10,7 +10,7 @@ #undef __UCLIBC_ABORT_INSTRUCTION__ /* can your target use syscall6() for mmap ? */ -#undef __UCLIBC_MMAP_HAS_6_ARGS__ +#define __UCLIBC_MMAP_HAS_6_ARGS__ /* does your target use syscall4() for truncate64 ? (32bit arches only) */ #undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__ @@ -22,7 +22,7 @@ #undef __UCLIBC_HANDLE_OLDER_RLIMIT__ /* does your target have an asm .set ? */ -#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ +#undef __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ /* define if target doesn't like .global */ #undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__ diff --git a/libc/sysdeps/linux/microblaze/bits/uClibc_page.h b/libc/sysdeps/linux/microblaze/bits/uClibc_page.h new file mode 100644 index 000000000..8fc81ae32 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/bits/uClibc_page.h @@ -0,0 +1,41 @@ +/* Copyright (C) 2004 Erik Andersen + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* Supply an architecture specific value for PAGE_SIZE and friends. */ + +#ifndef _UCLIBC_PAGE_H +#define _UCLIBC_PAGE_H + +#include + +#if defined(CONFIG_MICROBLAZE_32K_PAGES) +#define PAGE_SHIFT 15 +#elif defined(CONFIG_MICROBLAZE_16K_PAGES) +#define PAGE_SHIFT 14 +#elif defined(CONFIG_MICROBLAZE_8K_PAGES) +#define PAGE_SHIFT 13 +#elif defined(CONFIG_MICROBLAZE_4K_PAGES) +#define PAGE_SHIFT 12 +#else +#warning Missing CONFIG_MICROBLAZE_nnK_PAGES, assuming 4K +#define PAGE_SHIFT 12 +#endif + +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#endif /* _UCLIBC_PAGE_H */ diff --git a/libc/sysdeps/linux/microblaze/clinkage.h b/libc/sysdeps/linux/microblaze/clinkage.h deleted file mode 100644 index a9beffc96..000000000 --- a/libc/sysdeps/linux/microblaze/clinkage.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * libc/sysdeps/linux/microblaze/clinkage.h -- Macros for C symbols in assembler - * - * Copyright (C) 2003 John Williams - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU Lesser - * General Public License. See the file COPYING.LIB in the main - * directory of this archive for more details. - * - * Written by Miles Bader - */ - -#include -- cgit v1.2.3 From 87fd5816c9a14c4457cb69afaece1d28e66256fa Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:37:26 +0100 Subject: microblaze: thread support Header files needed to build linuxthreads.old for microblaze. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/sys/procfs.h | 145 +++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 libc/sysdeps/linux/microblaze/sys/procfs.h (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/sys/procfs.h b/libc/sysdeps/linux/microblaze/sys/procfs.h new file mode 100644 index 000000000..8fb87ef1e --- /dev/null +++ b/libc/sysdeps/linux/microblaze/sys/procfs.h @@ -0,0 +1,145 @@ +/* Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_PROCFS_H +#define _SYS_PROCFS_H 1 + +/* This is somewhat modelled after the file of the same name on SVR4 + systems. It provides a definition of the core file format for ELF + used on Linux. It doesn't have anything to do with the /proc file + system, even though Linux has one. + + Anyway, the whole purpose of this file is for GDB and GDB only. + Don't read too much into it. Don't use it for anything other than + GDB unless you know what you are doing. */ + +#include +#include +#include + + +/* Type for a general-purpose register. */ +#ifndef ELF_GREG_T +#define ELF_GREG_T +typedef unsigned long elf_greg_t; +#endif + +/* This is exactly the same as `struct pt_regs' in the kernel. */ +struct elf_gregset +{ + elf_greg_t gpr[32]; /* General purpose registers. */ + + elf_greg_t pc; /* program counter */ + elf_greg_t psw; /* program status word */ + elf_greg_t ear; /* Exception address register */ + elf_greg_t esr; /* Excep[tion Status Register */ + elf_greg_t fsr; /* FPU Status register */ + + elf_greg_t kernel_mode; /* 1 if in `kernel mode', 0 if user mode */ + elf_greg_t single_step; /* 1 if in single step mode */ +}; + +#ifndef ELF_NGREG +#define ELF_NGREG (sizeof (struct elf_gregset) / sizeof(elf_greg_t)) +#endif + +#ifndef ELF_GREGSET_T +#define ELF_GREGSET_T +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; +#endif + +/* Register set for the floating-point registers. */ +#ifndef ELF_FPREGSET_T +#define ELF_FPREGSET_T +typedef elf_greg_t elf_fpregset_t; +#endif + +struct elf_siginfo +{ + int si_signo; /* signal number */ + int si_code; /* extra code */ + int si_errno; /* errno */ +}; + + +/* + * Definitions to generate Intel SVR4-like core files. + * These mostly have the same names as the SVR4 types with "elf_" + * tacked on the front to prevent clashes with linux definitions, + * and the typedef forms have been avoided. This is mostly like + * the SVR4 structure, but more Linuxy, with things that Linux does + * not support and which gdb doesn't really use excluded. + * Fields present but not used are marked with "XXX". + */ +struct elf_prstatus +{ + struct elf_siginfo pr_info; /* Info associated with signal */ + short pr_cursig; /* Current signal */ + unsigned long pr_sigpend; /* Set of pending signals */ + unsigned long pr_sighold; /* Set of held signals */ + __kernel_pid_t pr_pid; + __kernel_pid_t pr_ppid; + __kernel_pid_t pr_pgrp; + __kernel_pid_t pr_sid; + struct timeval pr_utime; /* User time */ + struct timeval pr_stime; /* System time */ + struct timeval pr_cutime; /* Cumulative user time */ + struct timeval pr_cstime; /* Cumulative system time */ + elf_gregset_t pr_reg; /* GP registers */ + int pr_fpvalid; /* True if math co-processor being used. */ +}; + +#define ELF_PRARGSZ (80) /* Number of chars for args */ + +struct elf_prpsinfo +{ + char pr_state; /* numeric process state */ + char pr_sname; /* char for pr_state */ + char pr_zomb; /* zombie */ + char pr_nice; /* nice val */ + unsigned long pr_flag; /* flags */ + __kernel_uid_t pr_uid; + __kernel_gid_t pr_gid; + __kernel_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; + /* Lots missing */ + char pr_fname[16]; /* filename of executable */ + char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ +}; + + +/* The rest of this file provides the types for emulation of the + Solaris interfaces that should be implemented by + users of libthread_db. */ + +/* Addresses. */ +typedef void *psaddr_t; + +/* Register sets. Linux has different names. */ +typedef elf_gregset_t prgregset_t; +typedef elf_fpregset_t prfpregset_t; + +/* We don't have any differences between processes and threads, + therefore have only one PID type. */ +typedef __kernel_pid_t lwpid_t; + +/* Process status and info. In the end we do provide typedefs for them. */ +typedef struct elf_prstatus prstatus_t; +typedef struct elf_prpsinfo prpsinfo_t; + + +#endif /* sys/procfs.h */ -- cgit v1.2.3 From a9605f9bee384d9cb3d30ec1461aa59cdb8f6908 Mon Sep 17 00:00:00 2001 From: "Steven J. Magnani" Date: Wed, 10 Nov 2010 19:41:45 +0100 Subject: microblaze: build infrastructure Fix Microblaze config and makefiles. Signed-off-by: Steven J. Magnani Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/microblaze/Makefile | 82 +++++++---------------------- libc/sysdeps/linux/microblaze/Makefile.arch | 14 +++++ 2 files changed, 34 insertions(+), 62 deletions(-) create mode 100644 libc/sysdeps/linux/microblaze/Makefile.arch (limited to 'libc/sysdeps/linux/microblaze') diff --git a/libc/sysdeps/linux/microblaze/Makefile b/libc/sysdeps/linux/microblaze/Makefile index a7a832b24..338abc086 100644 --- a/libc/sysdeps/linux/microblaze/Makefile +++ b/libc/sysdeps/linux/microblaze/Makefile @@ -1,67 +1,25 @@ # Makefile for uClibc # -# Copyright (C) 2001,2002 NEC Corporation -# Copyright (C) 2001,2002 Miles Bader +# Copyright (C) 2000-2003 Erik Andersen # -# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. - -TOPDIR=../../../../ -include $(TOPDIR)Rules.mak - -#FIXME -- this arch should include its own crti.S and crtn.S -UCLIBC_CTOR_DTOR=n - -CFLAGS += -I.. -ASFLAGS += -I.. -D__ASSEMBLER -DASM_GLOBAL_DIRECTIVE=.globl - -TARGET_MACHINE_TYPE=$(shell $(CC) -dumpmachine) - -CRT_SRC := crt0.S -CRT_OBJ := crt0.o crt1.o -CTOR_TARGETS := $(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o - -SSRC := setjmp.S __longjmp.S vfork.S -SOBJ := $(patsubst %.S,%.o, $(SSRC)) - -CSRC := mmap.c syscall.c clone.c -COBJ := $(patsubst %.c,%.o, $(CSRC)) - -OBJS := $(SOBJ) $(COBJ) - -OBJ_LIST := ../../../obj.sysdeps.$(TARGET_ARCH) - -all: $(OBJ_LIST) $(CTOR_TARGETS) - -$(OBJ_LIST): $(OBJS) $(CRT_OBJ) - $(STRIPTOOL) -x -R .note -R .comment $^ - $(INSTALL) -d $(TOPDIR)lib/ - cp $(CRT_OBJ) $(TOPDIR)lib/ - echo $(patsubst %, sysdeps/linux/$(TARGET_ARCH)/%, $(OBJS)) > $@ - -$(CRT_OBJ): $(CRT_SRC) - $(CC) $(ASFLAGS) -DL_$* $< -c -o $*.o - -$(SOBJ): %.o : %.S - $(CC) $(ASFLAGS) -c $< -o $@ - -$(COBJ): %.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -ifeq ($(UCLIBC_CTOR_DTOR),y) -$(TOPDIR)lib/crti.o: crti.S - $(INSTALL) -d $(TOPDIR)lib/ - $(CC) $(ASFLAGS) $(SSP_DISABLE_FLAGS) -c $< -o $@ - -$(TOPDIR)lib/crtn.o: crtn.S - $(INSTALL) -d $(TOPDIR)lib/ - $(CC) $(ASFLAGS) $(SSP_DISABLE_FLAGS) -c $< -o $@ -else -$(CTOR_TARGETS): - $(INSTALL) -d $(TOPDIR)lib/ - $(AR) $(ARFLAGS) $@ -endif +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program 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 Library General Public License for more +# details. +# +# You should have received a copy of the GNU Library General Public License +# along with this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -headers: +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs -clean: - $(RM) *.o *~ core +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/microblaze/Makefile.arch b/libc/sysdeps/linux/microblaze/Makefile.arch new file mode 100644 index 000000000..ecbd80141 --- /dev/null +++ b/libc/sysdeps/linux/microblaze/Makefile.arch @@ -0,0 +1,14 @@ +# Makefile for uClibc +# +# Copyright (C) 2001,2002 NEC Corporation +# Copyright (C) 2001,2002 Miles Bader +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + +CSRC := mmap.c clone.c fixdfsi.c + +SSRC := setjmp.S __longjmp.S vfork.S + +ARCH_HEADERS := floatlib.h + +include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch -- cgit v1.2.3