diff options
Diffstat (limited to 'sys/contrib/ia64/libuwx/src/uwx_env.c')
| -rw-r--r-- | sys/contrib/ia64/libuwx/src/uwx_env.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/sys/contrib/ia64/libuwx/src/uwx_env.c b/sys/contrib/ia64/libuwx/src/uwx_env.c new file mode 100644 index 0000000..406d156 --- /dev/null +++ b/sys/contrib/ia64/libuwx/src/uwx_env.c @@ -0,0 +1,168 @@ +/* + * Copyright (c) 2002,2003 Hewlett-Packard Company + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef _KERNEL +#include <stdlib.h> +#else +#define free(p) /* nullified */ +#define malloc(sz) NULL +#endif + +#include "uwx_env.h" +#include "uwx_scoreboard.h" +#include "uwx_str.h" +#include "uwx_trace.h" + +alloc_cb uwx_allocate_cb = 0; +free_cb uwx_free_cb = 0; + +int uwx_register_alloc_cb(alloc_cb alloc, free_cb free) +{ + uwx_allocate_cb = alloc; + uwx_free_cb = free; + return UWX_OK; +} + +int uwx_init_history(struct uwx_env *env) +{ + int i; + + if (env == 0) + return UWX_ERR_NOENV; + + for (i = 0; i < NSPECIALREG; i++) + env->history.special[i] = UWX_DISP_REG(i);; + for (i = 0; i < NPRESERVEDGR; i++) + env->history.gr[i] = UWX_DISP_REG(UWX_REG_GR(4+i)); + for (i = 0; i < NPRESERVEDBR; i++) + env->history.br[i] = UWX_DISP_REG(UWX_REG_BR(1+i)); + for (i = 0; i < 4; i++) + env->history.fr[i] = UWX_DISP_REG(UWX_REG_FR(2+i)); + for ( ; i < NPRESERVEDFR; i++) + env->history.fr[i] = UWX_DISP_REG(UWX_REG_FR(12+i)); + + return UWX_OK; +} + +struct uwx_env *uwx_init() +{ + int i; + struct uwx_env *env; + + if (uwx_allocate_cb == 0) + env = (struct uwx_env *) malloc(sizeof(struct uwx_env)); + else + env = (struct uwx_env *) (*uwx_allocate_cb)(sizeof(struct uwx_env)); + if (env != 0) { + env->context.valid_regs = 0; + env->context.valid_frs = 0; + for (i = 0; i < NSPECIALREG; i++) + env->context.special[i] = 0; + for (i = 0; i < NPRESERVEDGR; i++) + env->context.gr[i] = 0; + for (i = 0; i < NPRESERVEDBR; i++) + env->context.br[i] = 0; + for (i = 0; i < NPRESERVEDFR; i++) { + env->context.fr[i].part0 = 0; + env->context.fr[i].part1 = 0; + } + env->rstate = 0; + env->function_offset = 0; + (void)uwx_init_history(env); + env->allocate_cb = uwx_allocate_cb; + env->free_cb = uwx_free_cb; + env->free_scoreboards = 0; + env->used_scoreboards = 0; + env->labeled_scoreboards = 0; + (void)uwx_init_str_pool(env); + env->module_name = 0; + env->function_name = 0; + env->cb_token = 0; + env->copyin = 0; + env->lookupip = 0; + env->remote = 0; + env->byte_swap = 0; + env->abi_context = 0; + env->nsbreg = NSBREG_NOFR; + env->nscoreboards = 0; + env->trace = 0; + TRACE_INIT + for (i = 0; i < NSCOREBOARDS; i++) + (void) uwx_alloc_scoreboard(env); + } + return env; +} + +int uwx_set_remote(struct uwx_env *env, int is_big_endian_target) +{ + int is_big_endian_host; + char *p; + + if (env == 0) + return UWX_ERR_NOENV; + + env->remote = 1; + + is_big_endian_host = 1; + p = (char *)&is_big_endian_host; + *p = 0; + if (is_big_endian_target == is_big_endian_host) + env->byte_swap = 0; + else + env->byte_swap = 1; + + return UWX_OK; +} + +int uwx_register_callbacks( + struct uwx_env *env, + intptr_t tok, + copyin_cb copyin, + lookupip_cb lookupip) +{ + if (env == 0) + return UWX_ERR_NOENV; + env->cb_token = tok; + env->copyin = copyin; + env->lookupip = lookupip; + return UWX_OK; +} + +int uwx_get_abi_context_code(struct uwx_env *env) +{ + if (env == 0) + return UWX_ERR_NOENV; + return env->abi_context; +} + +int uwx_free(struct uwx_env *env) +{ + if (env != 0) { + uwx_free_scoreboards(env); + uwx_free_str_pool(env); + if (env->free_cb == 0) + free((void *)env); + else + (*env->free_cb)((void *)env); + } + return UWX_OK; +} |
