1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/include/md/_linux.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,670 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + * This file is used by not only Linux but also other glibc systems
1.11 + * such as GNU/Hurd and GNU/k*BSD.
1.12 + */
1.13 +
1.14 +#ifndef nspr_linux_defs_h___
1.15 +#define nspr_linux_defs_h___
1.16 +
1.17 +#include "prthread.h"
1.18 +
1.19 +/*
1.20 + * Internal configuration macros
1.21 + */
1.22 +
1.23 +#define PR_LINKER_ARCH "linux"
1.24 +#define _PR_SI_SYSNAME "LINUX"
1.25 +#ifdef __powerpc64__
1.26 +#define _PR_SI_ARCHITECTURE "ppc64"
1.27 +#elif defined(__powerpc__)
1.28 +#define _PR_SI_ARCHITECTURE "ppc"
1.29 +#elif defined(__alpha)
1.30 +#define _PR_SI_ARCHITECTURE "alpha"
1.31 +#elif defined(__ia64__)
1.32 +#define _PR_SI_ARCHITECTURE "ia64"
1.33 +#elif defined(__x86_64__)
1.34 +#define _PR_SI_ARCHITECTURE "x86-64"
1.35 +#elif defined(__mc68000__)
1.36 +#define _PR_SI_ARCHITECTURE "m68k"
1.37 +#elif defined(__sparc__) && defined(__arch64__)
1.38 +#define _PR_SI_ARCHITECTURE "sparc64"
1.39 +#elif defined(__sparc__)
1.40 +#define _PR_SI_ARCHITECTURE "sparc"
1.41 +#elif defined(__i386__)
1.42 +#define _PR_SI_ARCHITECTURE "x86"
1.43 +#elif defined(__mips__)
1.44 +#define _PR_SI_ARCHITECTURE "mips"
1.45 +#elif defined(__arm__)
1.46 +#define _PR_SI_ARCHITECTURE "arm"
1.47 +#elif defined(__aarch64__)
1.48 +#define _PR_SI_ARCHITECTURE "aarch64"
1.49 +#elif defined(__hppa__)
1.50 +#define _PR_SI_ARCHITECTURE "hppa"
1.51 +#elif defined(__s390x__)
1.52 +#define _PR_SI_ARCHITECTURE "s390x"
1.53 +#elif defined(__s390__)
1.54 +#define _PR_SI_ARCHITECTURE "s390"
1.55 +#elif defined(__sh__)
1.56 +#define _PR_SI_ARCHITECTURE "sh"
1.57 +#elif defined(__avr32__)
1.58 +#define _PR_SI_ARCHITECTURE "avr32"
1.59 +#elif defined(__m32r__)
1.60 +#define _PR_SI_ARCHITECTURE "m32r"
1.61 +#else
1.62 +#error "Unknown CPU architecture"
1.63 +#endif
1.64 +#define PR_DLL_SUFFIX ".so"
1.65 +
1.66 +#define _PR_VMBASE 0x30000000
1.67 +#define _PR_STACK_VMBASE 0x50000000
1.68 +#define _MD_DEFAULT_STACK_SIZE 65536L
1.69 +#define _MD_MMAP_FLAGS MAP_PRIVATE
1.70 +
1.71 +#if defined(__aarch64__)
1.72 +#define _MD_MINIMUM_STACK_SIZE 0x20000
1.73 +#endif
1.74 +
1.75 +#undef HAVE_STACK_GROWING_UP
1.76 +
1.77 +/*
1.78 + * Elf linux supports dl* functions
1.79 + */
1.80 +#define HAVE_DLL
1.81 +#define USE_DLFCN
1.82 +#if defined(ANDROID)
1.83 +#define NO_DLOPEN_NULL
1.84 +#endif
1.85 +
1.86 +#if defined(__FreeBSD_kernel__) || defined(__GNU__)
1.87 +#define _PR_HAVE_SOCKADDR_LEN
1.88 +#endif
1.89 +
1.90 +#if defined(__i386__)
1.91 +#define _PR_HAVE_ATOMIC_OPS
1.92 +#define _MD_INIT_ATOMIC()
1.93 +extern PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val);
1.94 +#define _MD_ATOMIC_INCREMENT _PR_x86_AtomicIncrement
1.95 +extern PRInt32 _PR_x86_AtomicDecrement(PRInt32 *val);
1.96 +#define _MD_ATOMIC_DECREMENT _PR_x86_AtomicDecrement
1.97 +extern PRInt32 _PR_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.98 +#define _MD_ATOMIC_ADD _PR_x86_AtomicAdd
1.99 +extern PRInt32 _PR_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
1.100 +#define _MD_ATOMIC_SET _PR_x86_AtomicSet
1.101 +#endif
1.102 +
1.103 +#if defined(__ia64__)
1.104 +#define _PR_HAVE_ATOMIC_OPS
1.105 +#define _MD_INIT_ATOMIC()
1.106 +extern PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val);
1.107 +#define _MD_ATOMIC_INCREMENT _PR_ia64_AtomicIncrement
1.108 +extern PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val);
1.109 +#define _MD_ATOMIC_DECREMENT _PR_ia64_AtomicDecrement
1.110 +extern PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.111 +#define _MD_ATOMIC_ADD _PR_ia64_AtomicAdd
1.112 +extern PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval);
1.113 +#define _MD_ATOMIC_SET _PR_ia64_AtomicSet
1.114 +#endif
1.115 +
1.116 +#if defined(__x86_64__)
1.117 +#define _PR_HAVE_ATOMIC_OPS
1.118 +#define _MD_INIT_ATOMIC()
1.119 +extern PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val);
1.120 +#define _MD_ATOMIC_INCREMENT _PR_x86_64_AtomicIncrement
1.121 +extern PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val);
1.122 +#define _MD_ATOMIC_DECREMENT _PR_x86_64_AtomicDecrement
1.123 +extern PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.124 +#define _MD_ATOMIC_ADD _PR_x86_64_AtomicAdd
1.125 +extern PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
1.126 +#define _MD_ATOMIC_SET _PR_x86_64_AtomicSet
1.127 +#endif
1.128 +
1.129 +#if defined(__powerpc__) && !defined(__powerpc64__)
1.130 +#define _PR_HAVE_ATOMIC_OPS
1.131 +#define _MD_INIT_ATOMIC()
1.132 +extern PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val);
1.133 +#define _MD_ATOMIC_INCREMENT _PR_ppc_AtomicIncrement
1.134 +extern PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val);
1.135 +#define _MD_ATOMIC_DECREMENT _PR_ppc_AtomicDecrement
1.136 +extern PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.137 +#define _MD_ATOMIC_ADD _PR_ppc_AtomicAdd
1.138 +extern PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval);
1.139 +#define _MD_ATOMIC_SET _PR_ppc_AtomicSet
1.140 +#endif
1.141 +
1.142 +#if defined(__powerpc64__)
1.143 +#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
1.144 +/* Use GCC built-in functions */
1.145 +#define _PR_HAVE_ATOMIC_OPS
1.146 +#define _MD_INIT_ATOMIC()
1.147 +#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
1.148 +#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
1.149 +#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
1.150 +#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
1.151 +#endif
1.152 +#endif
1.153 +
1.154 +#if defined(__alpha)
1.155 +#define _PR_HAVE_ATOMIC_OPS
1.156 +#define _MD_INIT_ATOMIC()
1.157 +#define _MD_ATOMIC_ADD(ptr, i) ({ \
1.158 + PRInt32 __atomic_tmp, __atomic_ret; \
1.159 + __asm__ __volatile__( \
1.160 + "1: ldl_l %[ret], %[val] \n" \
1.161 + " addl %[ret], %[inc], %[tmp] \n" \
1.162 + " addl %[ret], %[inc], %[ret] \n" \
1.163 + " stl_c %[tmp], %[val] \n" \
1.164 + " beq %[tmp], 2f \n" \
1.165 + ".subsection 2 \n" \
1.166 + "2: br 1b \n" \
1.167 + ".previous" \
1.168 + : [ret] "=&r" (__atomic_ret), \
1.169 + [tmp] "=&r" (__atomic_tmp), \
1.170 + [val] "=m" (*ptr) \
1.171 + : [inc] "Ir" (i), "m" (*ptr)); \
1.172 + __atomic_ret; \
1.173 +})
1.174 +#define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1)
1.175 +#define _MD_ATOMIC_DECREMENT(ptr) ({ \
1.176 + PRInt32 __atomic_tmp, __atomic_ret; \
1.177 + __asm__ __volatile__( \
1.178 + "1: ldl_l %[ret], %[val] \n" \
1.179 + " subl %[ret], 1, %[tmp] \n" \
1.180 + " subl %[ret], 1, %[ret] \n" \
1.181 + " stl_c %[tmp], %[val] \n" \
1.182 + " beq %[tmp], 2f \n" \
1.183 + ".subsection 2 \n" \
1.184 + "2: br 1b \n" \
1.185 + ".previous" \
1.186 + : [ret] "=&r" (__atomic_ret), \
1.187 + [tmp] "=&r" (__atomic_tmp), \
1.188 + [val] "=m" (*ptr) \
1.189 + : "m" (*ptr)); \
1.190 + __atomic_ret; \
1.191 +})
1.192 +#define _MD_ATOMIC_SET(ptr, n) ({ \
1.193 + PRInt32 __atomic_tmp, __atomic_ret; \
1.194 + __asm__ __volatile__( \
1.195 + "1: ldl_l %[ret], %[val] \n" \
1.196 + " mov %[newval], %[tmp] \n" \
1.197 + " stl_c %[tmp], %[val] \n" \
1.198 + " beq %[tmp], 2f \n" \
1.199 + ".subsection 2 \n" \
1.200 + "2: br 1b \n" \
1.201 + ".previous" \
1.202 + : [ret] "=&r" (__atomic_ret), \
1.203 + [tmp] "=&r"(__atomic_tmp), \
1.204 + [val] "=m" (*ptr) \
1.205 + : [newval] "Ir" (n), "m" (*ptr)); \
1.206 + __atomic_ret; \
1.207 +})
1.208 +#endif
1.209 +
1.210 +#if defined(__arm__) || defined(__aarch64__)
1.211 +#if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
1.212 +/* Use GCC built-in functions */
1.213 +#define _PR_HAVE_ATOMIC_OPS
1.214 +#define _MD_INIT_ATOMIC()
1.215 +
1.216 +#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
1.217 +#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
1.218 +#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
1.219 +#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
1.220 +
1.221 +#elif defined(_PR_ARM_KUSER)
1.222 +#define _PR_HAVE_ATOMIC_OPS
1.223 +#define _MD_INIT_ATOMIC()
1.224 +
1.225 +/*
1.226 + * The kernel provides this helper function at a fixed address with a fixed
1.227 + * ABI signature, directly callable from user space.
1.228 + *
1.229 + * Definition:
1.230 + * Atomically store newval in *ptr if *ptr is equal to oldval.
1.231 + * Return zero if *ptr was changed or non-zero if no exchange happened.
1.232 + */
1.233 +typedef int (__kernel_cmpxchg_t)(int oldval, int newval, volatile int *ptr);
1.234 +#define __kernel_cmpxchg (*(__kernel_cmpxchg_t *)0xffff0fc0)
1.235 +
1.236 +#define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1)
1.237 +#define _MD_ATOMIC_DECREMENT(ptr) _MD_ATOMIC_ADD(ptr, -1)
1.238 +
1.239 +static inline PRInt32 _MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 n)
1.240 +{
1.241 + PRInt32 ov, nv;
1.242 + volatile PRInt32 *vp = ptr;
1.243 +
1.244 + do {
1.245 + ov = *vp;
1.246 + nv = ov + n;
1.247 + } while (__kernel_cmpxchg(ov, nv, vp));
1.248 +
1.249 + return nv;
1.250 +}
1.251 +
1.252 +static inline PRInt32 _MD_ATOMIC_SET(PRInt32 *ptr, PRInt32 nv)
1.253 +{
1.254 + PRInt32 ov;
1.255 + volatile PRInt32 *vp = ptr;
1.256 +
1.257 + do {
1.258 + ov = *vp;
1.259 + } while (__kernel_cmpxchg(ov, nv, vp));
1.260 +
1.261 + return ov;
1.262 +}
1.263 +#endif
1.264 +#endif /* __arm__ */
1.265 +
1.266 +#define USE_SETJMP
1.267 +#if (defined(__GLIBC__) && __GLIBC__ >= 2) || defined(ANDROID)
1.268 +#define _PR_POLL_AVAILABLE
1.269 +#endif
1.270 +#undef _PR_USE_POLL
1.271 +#define _PR_STAT_HAS_ONLY_ST_ATIME
1.272 +#if defined(__alpha) || defined(__ia64__)
1.273 +#define _PR_HAVE_LARGE_OFF_T
1.274 +#elif (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \
1.275 + || defined(ANDROID)
1.276 +#define _PR_HAVE_OFF64_T
1.277 +#else
1.278 +#define _PR_NO_LARGE_FILES
1.279 +#endif
1.280 +#if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \
1.281 + || defined(ANDROID)
1.282 +#define _PR_INET6
1.283 +#define _PR_HAVE_INET_NTOP
1.284 +#define _PR_HAVE_GETHOSTBYNAME2
1.285 +#define _PR_HAVE_GETADDRINFO
1.286 +#define _PR_INET6_PROBE
1.287 +#endif
1.288 +#ifndef ANDROID
1.289 +#define _PR_HAVE_SYSV_SEMAPHORES
1.290 +#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
1.291 +#endif
1.292 +/* Android has gethostbyname_r but not gethostbyaddr_r or gethostbyname2_r. */
1.293 +#if (__GLIBC__ >= 2) && defined(_PR_PTHREADS)
1.294 +#define _PR_HAVE_GETHOST_R
1.295 +#define _PR_HAVE_GETHOST_R_INT
1.296 +#endif
1.297 +
1.298 +#ifdef _PR_PTHREADS
1.299 +
1.300 +extern void _MD_CleanupBeforeExit(void);
1.301 +#define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
1.302 +
1.303 +#else /* ! _PR_PTHREADS */
1.304 +
1.305 +#include <setjmp.h>
1.306 +
1.307 +#define PR_CONTEXT_TYPE sigjmp_buf
1.308 +
1.309 +#define CONTEXT(_th) ((_th)->md.context)
1.310 +
1.311 +#ifdef __powerpc__
1.312 +/*
1.313 + * PowerPC based MkLinux
1.314 + *
1.315 + * On the PowerPC, the new style jmp_buf isn't used until glibc
1.316 + * 2.1.
1.317 + */
1.318 +#if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
1.319 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_GPR1]
1.320 +#else
1.321 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__misc[0]
1.322 +#endif /* glibc 2.1 or later */
1.323 +#define _MD_SET_FP(_t, val)
1.324 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.325 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.326 +/* aix = 64, macos = 70 */
1.327 +#define PR_NUM_GCREGS 64
1.328 +
1.329 +#elif defined(__alpha)
1.330 +/* Alpha based Linux */
1.331 +
1.332 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.333 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
1.334 +#define _MD_SET_FP(_t, val)
1.335 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.336 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.337 +#define _MD_SP_TYPE long int
1.338 +#else
1.339 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
1.340 +#define _MD_SET_FP(_t, val)
1.341 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.342 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.343 +#define _MD_SP_TYPE __ptr_t
1.344 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.345 +
1.346 +/* XXX not sure if this is correct, or maybe it should be 17? */
1.347 +#define PR_NUM_GCREGS 9
1.348 +
1.349 +#elif defined(__ia64__)
1.350 +
1.351 +#define _MD_GET_SP(_t) ((long *)((_t)->md.context[0].__jmpbuf)[0])
1.352 +#define _MD_SET_FP(_t, val)
1.353 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.354 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.355 +#define _MD_SP_TYPE long int
1.356 +
1.357 +#define PR_NUM_GCREGS _JBLEN
1.358 +
1.359 +#elif defined(__mc68000__)
1.360 +/* m68k based Linux */
1.361 +
1.362 +/*
1.363 + * On the m68k, glibc still uses the old style sigjmp_buf, even
1.364 + * in glibc 2.0.7.
1.365 + */
1.366 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.367 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
1.368 +#define _MD_SET_FP(_t, val)
1.369 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.370 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.371 +#define _MD_SP_TYPE int
1.372 +#else
1.373 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
1.374 +#define _MD_SET_FP(_t, val)
1.375 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.376 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.377 +#define _MD_SP_TYPE __ptr_t
1.378 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.379 +
1.380 +/* XXX not sure if this is correct, or maybe it should be 17? */
1.381 +#define PR_NUM_GCREGS 9
1.382 +
1.383 +#elif defined(__sparc__)
1.384 +/* Sparc */
1.385 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.386 +/*
1.387 + * You need glibc2-2.0.7-25 or later. The libraries that came with
1.388 + * Red Hat 5.1 are not new enough, but they are in 5.2.
1.389 + */
1.390 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
1.391 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_FP] = val)
1.392 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.393 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_FP])
1.394 +#define _MD_SP_TYPE int
1.395 +#else
1.396 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__fp
1.397 +#define _MD_SET_FP(_t, val)
1.398 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.399 +#define _MD_GET_FP_PTR(_t) ((void *) 0)
1.400 +#define _MD_SP_TYPE __ptr_t
1.401 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.402 +
1.403 +#elif defined(__i386__)
1.404 +/* Intel based Linux */
1.405 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.406 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
1.407 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val)
1.408 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.409 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP])
1.410 +#define _MD_SP_TYPE int
1.411 +#else
1.412 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
1.413 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__bp = val)
1.414 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.415 +#define _MD_GET_FP_PTR(_t) &((_t)->md.context[0].__jmpbuf[0].__bp)
1.416 +#define _MD_SP_TYPE __ptr_t
1.417 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.418 +#define PR_NUM_GCREGS 6
1.419 +
1.420 +#elif defined(__mips__)
1.421 +/* Linux/MIPS */
1.422 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.423 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
1.424 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__fp = (val))
1.425 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.426 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__fp)
1.427 +#define _MD_SP_TYPE __ptr_t
1.428 +#else
1.429 +#error "Linux/MIPS pre-glibc2 not supported yet"
1.430 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.431 +
1.432 +#elif defined(__arm__)
1.433 +/* ARM/Linux */
1.434 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.435 +#ifdef __ARM_EABI__
1.436 +/* EABI */
1.437 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[8]
1.438 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[7] = (val))
1.439 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.440 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[7])
1.441 +#define _MD_SP_TYPE __ptr_t
1.442 +#else /* __ARM_EABI__ */
1.443 +/* old ABI */
1.444 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[20]
1.445 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[19] = (val))
1.446 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.447 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[19])
1.448 +#define _MD_SP_TYPE __ptr_t
1.449 +#endif /* __ARM_EABI__ */
1.450 +#else
1.451 +#error "ARM/Linux pre-glibc2 not supported yet"
1.452 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.453 +
1.454 +#elif defined(__sh__)
1.455 +/* SH/Linux */
1.456 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.457 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[7]
1.458 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[6] = (val))
1.459 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.460 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[6])
1.461 +#define _MD_SP_TYPE __ptr_t
1.462 +#else
1.463 +#error "SH/Linux pre-glibc2 not supported yet"
1.464 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.465 +
1.466 +#elif defined(__m32r__)
1.467 +/* Linux/M32R */
1.468 +#if defined(__GLIBC__) && __GLIBC__ >= 2
1.469 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__regs[JB_SP]
1.470 +#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__regs[JB_FP] = (val))
1.471 +#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
1.472 +#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__regs[JB_FP])
1.473 +#define _MD_SP_TYPE __ptr_t
1.474 +#else
1.475 +#error "Linux/M32R pre-glibc2 not supported yet"
1.476 +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
1.477 +
1.478 +#else
1.479 +
1.480 +#error "Unknown CPU architecture"
1.481 +
1.482 +#endif /*__powerpc__*/
1.483 +
1.484 +/*
1.485 +** Initialize a thread context to run "_main()" when started
1.486 +*/
1.487 +#ifdef __powerpc__
1.488 +
1.489 +#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
1.490 +{ \
1.491 + *status = PR_TRUE; \
1.492 + if (sigsetjmp(CONTEXT(_thread), 1)) { \
1.493 + _main(); \
1.494 + } \
1.495 + _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 128); \
1.496 + _thread->md.sp = _MD_GET_SP_PTR(_thread); \
1.497 + _thread->md.fp = _MD_GET_FP_PTR(_thread); \
1.498 + _MD_SET_FP(_thread, 0); \
1.499 +}
1.500 +
1.501 +#elif defined(__mips__)
1.502 +
1.503 +#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
1.504 +{ \
1.505 + *status = PR_TRUE; \
1.506 + (void) sigsetjmp(CONTEXT(_thread), 1); \
1.507 + _thread->md.context[0].__jmpbuf[0].__pc = (__ptr_t) _main; \
1.508 + _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
1.509 + _thread->md.sp = _MD_GET_SP_PTR(_thread); \
1.510 + _thread->md.fp = _MD_GET_FP_PTR(_thread); \
1.511 + _MD_SET_FP(_thread, 0); \
1.512 +}
1.513 +
1.514 +#else
1.515 +
1.516 +#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
1.517 +{ \
1.518 + *status = PR_TRUE; \
1.519 + if (sigsetjmp(CONTEXT(_thread), 1)) { \
1.520 + _main(); \
1.521 + } \
1.522 + _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
1.523 + _thread->md.sp = _MD_GET_SP_PTR(_thread); \
1.524 + _thread->md.fp = _MD_GET_FP_PTR(_thread); \
1.525 + _MD_SET_FP(_thread, 0); \
1.526 +}
1.527 +
1.528 +#endif /*__powerpc__*/
1.529 +
1.530 +#define _MD_SWITCH_CONTEXT(_thread) \
1.531 + if (!sigsetjmp(CONTEXT(_thread), 1)) { \
1.532 + (_thread)->md.errcode = errno; \
1.533 + _PR_Schedule(); \
1.534 + }
1.535 +
1.536 +/*
1.537 +** Restore a thread context, saved by _MD_SWITCH_CONTEXT
1.538 +*/
1.539 +#define _MD_RESTORE_CONTEXT(_thread) \
1.540 +{ \
1.541 + errno = (_thread)->md.errcode; \
1.542 + _MD_SET_CURRENT_THREAD(_thread); \
1.543 + siglongjmp(CONTEXT(_thread), 1); \
1.544 +}
1.545 +
1.546 +/* Machine-dependent (MD) data structures */
1.547 +
1.548 +struct _MDThread {
1.549 + PR_CONTEXT_TYPE context;
1.550 + void *sp;
1.551 + void *fp;
1.552 + int id;
1.553 + int errcode;
1.554 +};
1.555 +
1.556 +struct _MDThreadStack {
1.557 + PRInt8 notused;
1.558 +};
1.559 +
1.560 +struct _MDLock {
1.561 + PRInt8 notused;
1.562 +};
1.563 +
1.564 +struct _MDSemaphore {
1.565 + PRInt8 notused;
1.566 +};
1.567 +
1.568 +struct _MDCVar {
1.569 + PRInt8 notused;
1.570 +};
1.571 +
1.572 +struct _MDSegment {
1.573 + PRInt8 notused;
1.574 +};
1.575 +
1.576 +/*
1.577 + * md-specific cpu structure field
1.578 + */
1.579 +#include <sys/time.h> /* for FD_SETSIZE */
1.580 +#define _PR_MD_MAX_OSFD FD_SETSIZE
1.581 +
1.582 +struct _MDCPU_Unix {
1.583 + PRCList ioQ;
1.584 + PRUint32 ioq_timeout;
1.585 + PRInt32 ioq_max_osfd;
1.586 + PRInt32 ioq_osfd_cnt;
1.587 +#ifndef _PR_USE_POLL
1.588 + fd_set fd_read_set, fd_write_set, fd_exception_set;
1.589 + PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
1.590 + fd_exception_cnt[_PR_MD_MAX_OSFD];
1.591 +#else
1.592 + struct pollfd *ioq_pollfds;
1.593 + int ioq_pollfds_size;
1.594 +#endif /* _PR_USE_POLL */
1.595 +};
1.596 +
1.597 +#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
1.598 +#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
1.599 +#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
1.600 +#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
1.601 +#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
1.602 +#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
1.603 +#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
1.604 +#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
1.605 +#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
1.606 +#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
1.607 +#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
1.608 +#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
1.609 +#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
1.610 +
1.611 +#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
1.612 +
1.613 +struct _MDCPU {
1.614 + struct _MDCPU_Unix md_unix;
1.615 +};
1.616 +
1.617 +#define _MD_INIT_LOCKS()
1.618 +#define _MD_NEW_LOCK(lock) PR_SUCCESS
1.619 +#define _MD_FREE_LOCK(lock)
1.620 +#define _MD_LOCK(lock)
1.621 +#define _MD_UNLOCK(lock)
1.622 +#define _MD_INIT_IO()
1.623 +#define _MD_IOQ_LOCK()
1.624 +#define _MD_IOQ_UNLOCK()
1.625 +
1.626 +extern PRStatus _MD_InitializeThread(PRThread *thread);
1.627 +
1.628 +#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
1.629 +#define _MD_INIT_THREAD _MD_InitializeThread
1.630 +#define _MD_EXIT_THREAD(thread)
1.631 +#define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread
1.632 +#define _MD_RESUME_THREAD(thread) _MD_resume_thread
1.633 +#define _MD_CLEAN_THREAD(_thread)
1.634 +
1.635 +extern PRStatus _MD_CREATE_THREAD(
1.636 + PRThread *thread,
1.637 + void (*start) (void *),
1.638 + PRThreadPriority priority,
1.639 + PRThreadScope scope,
1.640 + PRThreadState state,
1.641 + PRUint32 stackSize);
1.642 +extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
1.643 +extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
1.644 +extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
1.645 +extern void _MD_YIELD(void);
1.646 +
1.647 +#endif /* ! _PR_PTHREADS */
1.648 +
1.649 +extern void _MD_EarlyInit(void);
1.650 +
1.651 +#define _MD_EARLY_INIT _MD_EarlyInit
1.652 +#define _MD_FINAL_INIT _PR_UnixInit
1.653 +#define HAVE_CLOCK_MONOTONIC
1.654 +
1.655 +/*
1.656 + * We wrapped the select() call. _MD_SELECT refers to the built-in,
1.657 + * unwrapped version.
1.658 + */
1.659 +#define _MD_SELECT __select
1.660 +
1.661 +#ifdef _PR_POLL_AVAILABLE
1.662 +#include <sys/poll.h>
1.663 +extern int __syscall_poll(struct pollfd *ufds, unsigned long int nfds,
1.664 + int timeout);
1.665 +#define _MD_POLL __syscall_poll
1.666 +#endif
1.667 +
1.668 +/* For writev() */
1.669 +#include <sys/uio.h>
1.670 +
1.671 +extern void _MD_linux_map_sendfile_error(int err);
1.672 +
1.673 +#endif /* nspr_linux_defs_h___ */
