summaryrefslogtreecommitdiffstats
path: root/sys/contrib/ia64/libuwx/src/uwx_self.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/contrib/ia64/libuwx/src/uwx_self.c')
-rw-r--r--sys/contrib/ia64/libuwx/src/uwx_self.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/sys/contrib/ia64/libuwx/src/uwx_self.c b/sys/contrib/ia64/libuwx/src/uwx_self.c
new file mode 100644
index 0000000..d1c080e
--- /dev/null
+++ b/sys/contrib/ia64/libuwx/src/uwx_self.c
@@ -0,0 +1,261 @@
+/*
+ * 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>
+#include <crt0.h>
+#include <dlfcn.h>
+#include <sys/uc_access.h>
+#endif
+
+#include "uwx_env.h"
+#include "uwx_context.h"
+#include "uwx_trace.h"
+#include "uwx_self.h"
+
+#define UWX_ABI_HPUX_SIGCONTEXT 0x0101 /* abi = HP-UX, context = 1 */
+
+struct uwx_self_info {
+ ucontext_t *ucontext;
+ uint64_t bspstore;
+ uint64_t rvec[10];
+ uint64_t sendsig_start;
+ uint64_t sendsig_end;
+ alloc_cb allocate_cb;
+ free_cb free_cb;
+ int trace;
+};
+
+struct uwx_self_info *uwx_self_init_info(struct uwx_env *env)
+{
+ struct uwx_self_info *info;
+
+ if (env->allocate_cb == 0)
+ info = (struct uwx_self_info *)
+ malloc(sizeof(struct uwx_self_info));
+ else
+ info = (struct uwx_self_info *)
+ (*env->allocate_cb)(sizeof(struct uwx_self_info));
+ if (info == 0)
+ return 0;
+
+ info->ucontext = 0;
+ info->bspstore = 0;
+ info->sendsig_start = __load_info->li_sendsig_txt;
+ info->sendsig_end = __load_info->li_sendsig_txt +
+ __load_info->li_sendsig_tsz;
+ info->allocate_cb = env->allocate_cb;
+ info->free_cb = env->free_cb;
+ info->trace = env->trace;
+ return info;
+}
+
+int uwx_self_free_info(struct uwx_self_info *info)
+{
+ if (info->free_cb == 0)
+ free((void *)info);
+ else
+ (*info->free_cb)((void *)info);
+ return UWX_OK;
+}
+
+int uwx_self_init_from_sigcontext(
+ struct uwx_env *env,
+ struct uwx_self_info *info,
+ ucontext_t *ucontext)
+{
+ int status;
+ uint16_t reason;
+ uint64_t ip;
+ uint64_t sp;
+ uint64_t bsp;
+ uint64_t cfm;
+ unsigned int nat;
+ uint64_t ec;
+
+ info->ucontext = ucontext;
+ status = __uc_get_reason(ucontext, &reason);
+ status = __uc_get_ip(ucontext, &ip);
+ status = __uc_get_grs(ucontext, 12, 1, &sp, &nat);
+ status = __uc_get_ar(ucontext, 17, &bsp);
+ status = __uc_get_ar(ucontext, 18, &info->bspstore);
+ status = __uc_get_ar(ucontext, 66, &ec);
+ status = __uc_get_cfm(ucontext, &cfm);
+ cfm |= ec << 52;
+ if (reason != 0)
+ bsp = uwx_add_to_bsp(bsp, -((unsigned int)cfm & 0x7f));
+ uwx_init_context(env, ip, sp, bsp, cfm);
+ return UWX_OK;
+}
+
+int uwx_self_do_context_frame(
+ struct uwx_env *env,
+ struct uwx_self_info *info)
+{
+ int abi_context;
+ int status;
+ uint64_t ucontext;
+
+ abi_context = uwx_get_abi_context_code(env);
+ if (abi_context != UWX_ABI_HPUX_SIGCONTEXT)
+ return UWX_SELF_ERR_BADABICONTEXT;
+ status = uwx_get_reg(env, UWX_REG_GR(32), (uint64_t *)&ucontext);
+ if (status != 0)
+ return status;
+ return uwx_self_init_from_sigcontext(env, info, (ucontext_t *)ucontext);
+}
+
+int uwx_self_copyin(
+ int request,
+ char *loc,
+ uint64_t rem,
+ int len,
+ intptr_t tok)
+{
+ int status;
+ int regid;
+ unsigned int nat;
+ struct uwx_self_info *info = (struct uwx_self_info *) tok;
+ unsigned long *wp;
+ uint64_t *dp;
+
+ dp = (uint64_t *) loc;
+
+ if (request == UWX_COPYIN_UINFO ||
+ request == UWX_COPYIN_MSTACK) {
+ if (len == 4) {
+ wp = (unsigned long *) loc;
+ *wp = *(unsigned long *)rem;
+ TRACE_SELF_COPYIN4(rem, len, wp)
+ }
+ else if (len == 8) {
+ *dp = *(uint64_t *)rem;
+ TRACE_SELF_COPYIN4(rem, len, dp)
+ }
+ else
+ return 0;
+ }
+ else if (request == UWX_COPYIN_RSTACK && len == 8) {
+ if (info->ucontext == 0 || rem < info->bspstore) {
+ *dp = *(uint64_t *)rem;
+ TRACE_SELF_COPYIN4(rem, len, dp)
+ }
+ else {
+ status = __uc_get_rsebs(info->ucontext, (uint64_t *)rem, 1, dp);
+ if (status != 0)
+ return 0;
+ }
+ }
+ else if (request == UWX_COPYIN_REG && len == 8) {
+ if (info->ucontext == 0)
+ return 0;
+ regid = (int)rem;
+ if (rem < UWX_REG_GR(0)) {
+ switch (regid) {
+ case UWX_REG_PFS:
+ status = __uc_get_ar(info->ucontext, 64, dp);
+ break;
+ case UWX_REG_PREDS:
+ status = __uc_get_prs(info->ucontext, dp);
+ break;
+ case UWX_REG_RNAT:
+ status = __uc_get_ar(info->ucontext, 19, dp);
+ break;
+ case UWX_REG_UNAT:
+ status = __uc_get_ar(info->ucontext, 36, dp);
+ break;
+ case UWX_REG_FPSR:
+ status = __uc_get_ar(info->ucontext, 40, dp);
+ break;
+ case UWX_REG_LC:
+ status = __uc_get_ar(info->ucontext, 65, dp);
+ break;
+ default:
+ return 0;
+ }
+ }
+ else if (regid >= UWX_REG_GR(1) && regid <= UWX_REG_GR(31)) {
+ status = __uc_get_grs(info->ucontext,
+ regid - UWX_REG_GR(0), 1, dp, &nat);
+ }
+ else if (regid >= UWX_REG_BR(0) && regid <= UWX_REG_BR(7)) {
+ status = __uc_get_brs(info->ucontext,
+ regid - UWX_REG_BR(0), 1, dp);
+ }
+ if (status != 0)
+ return 0;
+ }
+ return len;
+}
+
+
+int uwx_self_lookupip(
+ int request,
+ uint64_t ip,
+ intptr_t tok,
+ uint64_t **resultp)
+{
+ struct uwx_self_info *info = (struct uwx_self_info *) tok;
+ UINT64 handle;
+ struct load_module_desc desc;
+ uint64_t *unwind_base;
+ uint64_t *rvec;
+ int i;
+
+ if (request == UWX_LKUP_LOOKUP) {
+ TRACE_SELF_LOOKUP(ip)
+ if (ip >= info->sendsig_start && ip < info->sendsig_end) {
+ i = 0;
+ rvec = info->rvec;
+ rvec[i++] = UWX_KEY_CONTEXT;
+ rvec[i++] = UWX_ABI_HPUX_SIGCONTEXT;
+ rvec[i++] = 0;
+ rvec[i++] = 0;
+ *resultp = rvec;
+ return UWX_LKUP_FDESC;
+ }
+ else {
+ handle = dlmodinfo(ip, &desc, sizeof(desc), 0, 0, 0);
+ if (handle == 0)
+ return UWX_LKUP_ERR;
+ unwind_base = (uint64_t *) desc.unwind_base;
+ TRACE_SELF_LOOKUP_DESC(desc.text_base, unwind_base)
+ i = 0;
+ rvec = info->rvec;
+ rvec[i++] = UWX_KEY_TBASE;
+ rvec[i++] = desc.text_base;
+ rvec[i++] = UWX_KEY_UFLAGS;
+ rvec[i++] = unwind_base[0];
+ rvec[i++] = UWX_KEY_USTART;
+ rvec[i++] = desc.text_base + unwind_base[1];
+ rvec[i++] = UWX_KEY_UEND;
+ rvec[i++] = desc.text_base + unwind_base[2];
+ rvec[i++] = 0;
+ rvec[i++] = 0;
+ *resultp = rvec;
+ return UWX_LKUP_UTABLE;
+ }
+ }
+ else if (request == UWX_LKUP_FREE) {
+ return 0;
+ }
+}
OpenPOWER on IntegriCloud