aboutsummaryrefslogtreecommitdiff
path: root/target-xtensa/xtensa-semi.c
diff options
context:
space:
mode:
Diffstat (limited to 'target-xtensa/xtensa-semi.c')
-rw-r--r--target-xtensa/xtensa-semi.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/target-xtensa/xtensa-semi.c b/target-xtensa/xtensa-semi.c
deleted file mode 100644
index 370e365c65..0000000000
--- a/target-xtensa/xtensa-semi.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the Open Source and Linux Lab nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "qemu/log.h"
-
-enum {
- TARGET_SYS_exit = 1,
- TARGET_SYS_read = 3,
- TARGET_SYS_write = 4,
- TARGET_SYS_open = 5,
- TARGET_SYS_close = 6,
- TARGET_SYS_lseek = 19,
- TARGET_SYS_select_one = 29,
-
- TARGET_SYS_argc = 1000,
- TARGET_SYS_argv_sz = 1001,
- TARGET_SYS_argv = 1002,
- TARGET_SYS_memset = 1004,
-};
-
-enum {
- SELECT_ONE_READ = 1,
- SELECT_ONE_WRITE = 2,
- SELECT_ONE_EXCEPT = 3,
-};
-
-enum {
- TARGET_EPERM = 1,
- TARGET_ENOENT = 2,
- TARGET_ESRCH = 3,
- TARGET_EINTR = 4,
- TARGET_EIO = 5,
- TARGET_ENXIO = 6,
- TARGET_E2BIG = 7,
- TARGET_ENOEXEC = 8,
- TARGET_EBADF = 9,
- TARGET_ECHILD = 10,
- TARGET_EAGAIN = 11,
- TARGET_ENOMEM = 12,
- TARGET_EACCES = 13,
- TARGET_EFAULT = 14,
- TARGET_ENOTBLK = 15,
- TARGET_EBUSY = 16,
- TARGET_EEXIST = 17,
- TARGET_EXDEV = 18,
- TARGET_ENODEV = 19,
- TARGET_ENOTDIR = 20,
- TARGET_EISDIR = 21,
- TARGET_EINVAL = 22,
- TARGET_ENFILE = 23,
- TARGET_EMFILE = 24,
- TARGET_ENOTTY = 25,
- TARGET_ETXTBSY = 26,
- TARGET_EFBIG = 27,
- TARGET_ENOSPC = 28,
- TARGET_ESPIPE = 29,
- TARGET_EROFS = 30,
- TARGET_EMLINK = 31,
- TARGET_EPIPE = 32,
- TARGET_EDOM = 33,
- TARGET_ERANGE = 34,
- TARGET_ENOSYS = 88,
- TARGET_ELOOP = 92,
-};
-
-static uint32_t errno_h2g(int host_errno)
-{
- static const uint32_t guest_errno[] = {
- [EPERM] = TARGET_EPERM,
- [ENOENT] = TARGET_ENOENT,
- [ESRCH] = TARGET_ESRCH,
- [EINTR] = TARGET_EINTR,
- [EIO] = TARGET_EIO,
- [ENXIO] = TARGET_ENXIO,
- [E2BIG] = TARGET_E2BIG,
- [ENOEXEC] = TARGET_ENOEXEC,
- [EBADF] = TARGET_EBADF,
- [ECHILD] = TARGET_ECHILD,
- [EAGAIN] = TARGET_EAGAIN,
- [ENOMEM] = TARGET_ENOMEM,
- [EACCES] = TARGET_EACCES,
- [EFAULT] = TARGET_EFAULT,
-#ifdef ENOTBLK
- [ENOTBLK] = TARGET_ENOTBLK,
-#endif
- [EBUSY] = TARGET_EBUSY,
- [EEXIST] = TARGET_EEXIST,
- [EXDEV] = TARGET_EXDEV,
- [ENODEV] = TARGET_ENODEV,
- [ENOTDIR] = TARGET_ENOTDIR,
- [EISDIR] = TARGET_EISDIR,
- [EINVAL] = TARGET_EINVAL,
- [ENFILE] = TARGET_ENFILE,
- [EMFILE] = TARGET_EMFILE,
- [ENOTTY] = TARGET_ENOTTY,
-#ifdef ETXTBSY
- [ETXTBSY] = TARGET_ETXTBSY,
-#endif
- [EFBIG] = TARGET_EFBIG,
- [ENOSPC] = TARGET_ENOSPC,
- [ESPIPE] = TARGET_ESPIPE,
- [EROFS] = TARGET_EROFS,
- [EMLINK] = TARGET_EMLINK,
- [EPIPE] = TARGET_EPIPE,
- [EDOM] = TARGET_EDOM,
- [ERANGE] = TARGET_ERANGE,
- [ENOSYS] = TARGET_ENOSYS,
-#ifdef ELOOP
- [ELOOP] = TARGET_ELOOP,
-#endif
- };
-
- if (host_errno == 0) {
- return 0;
- } else if (host_errno > 0 && host_errno < ARRAY_SIZE(guest_errno) &&
- guest_errno[host_errno]) {
- return guest_errno[host_errno];
- } else {
- return TARGET_EINVAL;
- }
-}
-
-void HELPER(simcall)(CPUXtensaState *env)
-{
- CPUState *cs = CPU(xtensa_env_get_cpu(env));
- uint32_t *regs = env->regs;
-
- switch (regs[2]) {
- case TARGET_SYS_exit:
- qemu_log("exit(%d) simcall\n", regs[3]);
- exit(regs[3]);
- break;
-
- case TARGET_SYS_read:
- case TARGET_SYS_write:
- {
- bool is_write = regs[2] == TARGET_SYS_write;
- uint32_t fd = regs[3];
- uint32_t vaddr = regs[4];
- uint32_t len = regs[5];
-
- while (len > 0) {
- hwaddr paddr = cpu_get_phys_page_debug(cs, vaddr);
- uint32_t page_left =
- TARGET_PAGE_SIZE - (vaddr & (TARGET_PAGE_SIZE - 1));
- uint32_t io_sz = page_left < len ? page_left : len;
- hwaddr sz = io_sz;
- void *buf = cpu_physical_memory_map(paddr, &sz, is_write);
-
- if (buf) {
- vaddr += io_sz;
- len -= io_sz;
- regs[2] = is_write ?
- write(fd, buf, io_sz) :
- read(fd, buf, io_sz);
- regs[3] = errno_h2g(errno);
- cpu_physical_memory_unmap(buf, sz, is_write, sz);
- if (regs[2] == -1) {
- break;
- }
- } else {
- regs[2] = -1;
- regs[3] = TARGET_EINVAL;
- break;
- }
- }
- }
- break;
-
- case TARGET_SYS_open:
- {
- char name[1024];
- int rc;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(name); ++i) {
- rc = cpu_memory_rw_debug(cs, regs[3] + i,
- (uint8_t *)name + i, 1, 0);
- if (rc != 0 || name[i] == 0) {
- break;
- }
- }
-
- if (rc == 0 && i < ARRAY_SIZE(name)) {
- regs[2] = open(name, regs[4], regs[5]);
- regs[3] = errno_h2g(errno);
- } else {
- regs[2] = -1;
- regs[3] = TARGET_EINVAL;
- }
- }
- break;
-
- case TARGET_SYS_close:
- if (regs[3] < 3) {
- regs[2] = regs[3] = 0;
- } else {
- regs[2] = close(regs[3]);
- regs[3] = errno_h2g(errno);
- }
- break;
-
- case TARGET_SYS_lseek:
- regs[2] = lseek(regs[3], (off_t)(int32_t)regs[4], regs[5]);
- regs[3] = errno_h2g(errno);
- break;
-
- case TARGET_SYS_select_one:
- {
- uint32_t fd = regs[3];
- uint32_t rq = regs[4];
- uint32_t target_tv = regs[5];
- uint32_t target_tvv[2];
-
- struct timeval tv = {0};
- fd_set fdset;
-
- FD_ZERO(&fdset);
- FD_SET(fd, &fdset);
-
- if (target_tv) {
- cpu_memory_rw_debug(cs, target_tv,
- (uint8_t *)target_tvv, sizeof(target_tvv), 0);
- tv.tv_sec = (int32_t)tswap32(target_tvv[0]);
- tv.tv_usec = (int32_t)tswap32(target_tvv[1]);
- }
- regs[2] = select(fd + 1,
- rq == SELECT_ONE_READ ? &fdset : NULL,
- rq == SELECT_ONE_WRITE ? &fdset : NULL,
- rq == SELECT_ONE_EXCEPT ? &fdset : NULL,
- target_tv ? &tv : NULL);
- regs[3] = errno_h2g(errno);
- }
- break;
-
- case TARGET_SYS_argc:
- regs[2] = 1;
- regs[3] = 0;
- break;
-
- case TARGET_SYS_argv_sz:
- regs[2] = 128;
- regs[3] = 0;
- break;
-
- case TARGET_SYS_argv:
- {
- struct Argv {
- uint32_t argptr[2];
- char text[120];
- } argv = {
- {0, 0},
- "test"
- };
-
- argv.argptr[0] = tswap32(regs[3] + offsetof(struct Argv, text));
- cpu_memory_rw_debug(cs,
- regs[3], (uint8_t *)&argv, sizeof(argv), 1);
- }
- break;
-
- case TARGET_SYS_memset:
- {
- uint32_t base = regs[3];
- uint32_t sz = regs[5];
-
- while (sz) {
- hwaddr len = sz;
- void *buf = cpu_physical_memory_map(base, &len, 1);
-
- if (buf && len) {
- memset(buf, regs[4], len);
- cpu_physical_memory_unmap(buf, len, 1, len);
- } else {
- len = 1;
- }
- base += len;
- sz -= len;
- }
- regs[2] = regs[3];
- regs[3] = 0;
- }
- break;
-
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s(%d): not implemented\n", __func__, regs[2]);
- regs[2] = -1;
- regs[3] = TARGET_ENOSYS;
- break;
- }
-}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-14 07:15:35 +0000