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freebsd-nq/sys/contrib/ia64/libuwx/src/uwx_self.c

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This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
/*
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
Copyright (c) 2003-2006 Hewlett-Packard Development Company, L.P.
Import beta6 of libuwx. This release has some minor fixes and some minor corrections to beta5.
2003-10-29 04:25:17 +00:00
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.
*/
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
#include <stdlib.h>
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
#include <string.h>
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
#include <crt0.h>
#include <dlfcn.h>
#include <sys/uc_access.h>
#include "uwx_env.h"
#include "uwx_context.h"
#include "uwx_trace.h"
#include "uwx_self.h"
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
#include "uwx_self_info.h"
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
#define UWX_ABI_HPUX_SIGCONTEXT 0x0101 /* abi = HP-UX, context = 1 */
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
void uwx_free_load_module_cache(struct uwx_self_info *info);
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
int uwx_self_init_info_block(struct uwx_env *env, struct uwx_self_info *info)
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
{
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
info->env = env;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
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;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
info->on_heap = 0;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
info->trace = env->trace;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
info->load_module_cache = NULL;
return UWX_OK;
}
struct uwx_self_info *uwx_self_init_info(struct uwx_env *env)
{
struct uwx_self_info *info;
info = (struct uwx_self_info *)
(*env->allocate_cb)(sizeof(struct uwx_self_info));
if (info == 0)
return 0;
uwx_self_init_info_block(env, info);
info->on_heap = 1;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
return info;
}
int uwx_self_free_info(struct uwx_self_info *info)
{
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
int i;
if (info->load_module_cache != NULL)
uwx_free_load_module_cache(info);
if (info->on_heap)
(*info->env->free_cb)((void *)info);
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
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;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
int adj;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
info->ucontext = ucontext;
status = __uc_get_reason(ucontext, &reason);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
status = __uc_get_ip(ucontext, &ip);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
status = __uc_get_grs(ucontext, 12, 1, &sp, &nat);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
status = __uc_get_cfm(ucontext, &cfm);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
#ifdef NEW_UC_GET_AR
status = __uc_get_ar_bsp(ucontext, &bsp);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
status = __uc_get_ar_bspstore(ucontext, &info->bspstore);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
status = __uc_get_ar_ec(ucontext, &ec);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
#else
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
status = __uc_get_ar(ucontext, 17, &bsp);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
status = __uc_get_ar(ucontext, 18, &info->bspstore);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
status = __uc_get_ar(ucontext, 66, &ec);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != 0)
return UWX_ERR_UCACCESS;
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
#endif
/* The returned bsp needs to be adjusted. */
/* For interrupt frames, where bsp was advanced by a cover */
/* instruction, subtract sof (size of frame). For non-interrupt */
/* frames, where bsp was advanced by br.call, subtract sol */
/* (size of locals). */
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
if (reason != 0)
Upgrade Unwind Express (libuwx) to BETA 5. This upgrade includes all the fixes locally applied and submitted to the author. Not included in BETA 5, but part of this import are: o FreeBSD specific ifdefs to make this compile within a kernel. These are limited to include directives and defines. o Removal of unused variables, proper casts and initializations to allow building with -Werror. This happens in code so has a higher chance of causing future import conflicts but not enough to worry about it. I'm especially thankful that the author accepted the change to replace DISABLE_TRACE with UWX_TRACE_ENABLE so that we can use it in kernel config files without nasty mappings or indirections as that would make the integration less perfect. Thanks Cary!
2003-10-09 03:02:46 +00:00
adj = (unsigned int)cfm & 0x7f; /* interrupt frame */
else
adj = ((unsigned int)cfm >> 7) & 0x7f; /* non-interrupt frame */
bsp = uwx_add_to_bsp(bsp, -adj);
cfm |= ec << 52;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
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);
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
if (status != UWX_OK)
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
return status;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
return uwx_self_init_from_sigcontext(env, info,
(ucontext_t *)(intptr_t)ucontext);
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
}
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;
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
status = -1;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
dp = (uint64_t *) loc;
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
switch (request) {
case UWX_COPYIN_UINFO:
case UWX_COPYIN_MSTACK:
if (len == 4) {
wp = (unsigned long *) loc;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
*wp = *(unsigned long *)(intptr_t)rem;
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
TRACE_SELF_COPYIN4(rem, len, wp)
status = 0;
}
else if (len == 8) {
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
*dp = *(uint64_t *)(intptr_t)rem;
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
TRACE_SELF_COPYIN8(rem, len, dp)
status = 0;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
}
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
break;
case UWX_COPYIN_RSTACK:
if (len == 8) {
if (info->ucontext == 0 && rem == (info->bspstore | 0x1f8)) {
*dp = info->env->context.special[UWX_REG_AR_RNAT];
status = 0;
}
else if (info->ucontext == 0 || rem < info->bspstore) {
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
*dp = *(uint64_t *)(intptr_t)rem;
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
TRACE_SELF_COPYIN8(rem, len, dp)
status = 0;
}
else {
status = __uc_get_rsebs(info->ucontext,
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
(uint64_t *)(intptr_t)rem, 1, dp);
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
}
}
break;
case UWX_COPYIN_REG:
regid = (int)rem;
if (info->ucontext != 0) {
if (len == 8) {
if (rem == UWX_REG_PREDS)
status = __uc_get_prs(info->ucontext, dp);
else if (rem == UWX_REG_AR_PFS)
status = __uc_get_ar(info->ucontext, 64, dp);
else if (rem == UWX_REG_AR_RNAT)
status = __uc_get_ar(info->ucontext, 19, dp);
else if (rem == UWX_REG_AR_UNAT)
status = __uc_get_ar(info->ucontext, 36, dp);
else if (rem == UWX_REG_AR_FPSR)
status = __uc_get_ar(info->ucontext, 40, dp);
else if (rem == UWX_REG_AR_LC)
status = __uc_get_ar(info->ucontext, 65, dp);
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);
}
else if (len == 16) {
if (regid >= UWX_REG_FR(2) && regid <= UWX_REG_FR(127)) {
status = __uc_get_frs(info->ucontext,
regid - UWX_REG_FR(0), 1, (fp_regval_t *)dp);
}
}
}
break;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
}
Update to BETA 7. Besides C++ support, which is irrelevant to us, this version mostly has bugs fixes.
2004-05-09 03:06:25 +00:00
if (status != 0)
return 0;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
return len;
}
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
#define MODULE_CACHE_SIZE 4
struct load_module_cache {
int clock;
char *names[MODULE_CACHE_SIZE];
struct load_module_desc descs[MODULE_CACHE_SIZE];
struct uwx_symbol_cache *symbol_cache;
};
void uwx_free_load_module_cache(struct uwx_self_info *info)
{
int i;
for (i = 0; i < MODULE_CACHE_SIZE; i++) {
if (info->load_module_cache->names[i] != NULL)
(*info->env->free_cb)((void *)info->load_module_cache->names[i]);
}
if (info->load_module_cache->symbol_cache != NULL)
uwx_release_symbol_cache(info->env,
info->load_module_cache->symbol_cache);
(*info->env->free_cb)((void *)info->load_module_cache);
}
struct load_module_desc *uwx_get_modinfo(
struct uwx_self_info *info,
uint64_t ip,
char **module_name_p)
{
int i;
UINT64 handle;
struct load_module_cache *cache;
struct load_module_desc *desc;
char *module_name;
cache = info->load_module_cache;
if (cache == NULL) {
cache = (struct load_module_cache *)
(*info->env->allocate_cb)(sizeof(struct load_module_cache));
if (cache == NULL)
return NULL;
for (i = 0; i < MODULE_CACHE_SIZE; i++) {
desc = &cache->descs[i];
desc->text_base = 0;
desc->text_size = 0;
cache->names[i] = NULL;
}
cache->clock = 0;
cache->symbol_cache = NULL;
info->load_module_cache = cache;
}
for (i = 0; i < MODULE_CACHE_SIZE; i++) {
desc = &cache->descs[i];
if (ip >= desc->text_base && ip < desc->text_base + desc->text_size)
break;
}
if (i >= MODULE_CACHE_SIZE) {
i = cache->clock;
cache->clock = (cache->clock + 1) % MODULE_CACHE_SIZE;
desc = &cache->descs[i];
handle = dlmodinfo(ip, desc, sizeof(*desc), 0, 0, 0);
if (handle == 0)
return NULL;
if (cache->names[i] != NULL)
(*info->env->free_cb)(cache->names[i]);
cache->names[i] = NULL;
}
if (module_name_p != NULL) {
if (cache->names[i] == NULL) {
module_name = dlgetname(desc, sizeof(*desc), 0, 0, 0);
if (module_name != NULL) {
cache->names[i] = (char *)
(*info->env->allocate_cb)(strlen(module_name)+1);
if (cache->names[i] != NULL)
strcpy(cache->names[i], module_name);
}
}
*module_name_p = cache->names[i];
}
return desc;
}
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
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;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
struct load_module_desc *desc;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
uint64_t *unwind_base;
uint64_t *rvec;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
char *module_name;
char *func_name;
uint64_t offset;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
int i;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
int status;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
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;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
rvec[i++] = UWX_KEY_END;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
rvec[i++] = 0;
*resultp = rvec;
return UWX_LKUP_FDESC;
}
else {
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
desc = uwx_get_modinfo(info, ip, NULL);
if (desc == NULL)
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
return UWX_LKUP_ERR;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
unwind_base = (uint64_t *) (intptr_t) desc->unwind_base;
TRACE_SELF_LOOKUP_DESC(desc->text_base,
desc->linkage_ptr, unwind_base)
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
i = 0;
rvec = info->rvec;
rvec[i++] = UWX_KEY_TBASE;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
rvec[i++] = desc->text_base;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
rvec[i++] = UWX_KEY_UFLAGS;
rvec[i++] = unwind_base[0];
rvec[i++] = UWX_KEY_USTART;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
rvec[i++] = desc->text_base + unwind_base[1];
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
rvec[i++] = UWX_KEY_UEND;
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
rvec[i++] = desc->text_base + unwind_base[2];
rvec[i++] = UWX_KEY_GP;
rvec[i++] = desc->linkage_ptr;
rvec[i++] = UWX_KEY_END;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
rvec[i++] = 0;
*resultp = rvec;
return UWX_LKUP_UTABLE;
}
}
else if (request == UWX_LKUP_FREE) {
return 0;
}
Import BETA 10 of HP's Unwind Express. This import does not contain any modifications to make it build as part of the FreeBSD kernel. Now that the source appears to have stabilized, local changes will happen on HEAD and will therefore cause affected files to be pulled from the vendor branch.
2006-07-07 22:59:01 +00:00
else if (request == UWX_LKUP_MODULE) {
desc = uwx_get_modinfo(info, ip, &module_name);
if (desc == NULL)
return UWX_LKUP_ERR;
if (module_name == NULL)
return UWX_LKUP_ERR;
i = 0;
rvec = info->rvec;
rvec[i++] = UWX_KEY_MODULE;
rvec[i++] = (uint64_t)(intptr_t)module_name;
rvec[i++] = UWX_KEY_TBASE;
rvec[i++] = desc->text_base;
rvec[i++] = UWX_KEY_END;
rvec[i++] = 0;
*resultp = rvec;
return UWX_LKUP_SYMINFO;
}
else if (request == UWX_LKUP_SYMBOLS) {
rvec = *resultp;
for (i = 0; rvec[i] != UWX_KEY_END; i += 2) {
if (rvec[i] == UWX_KEY_FUNCSTART)
ip = rvec[i+1];
}
desc = uwx_get_modinfo(info, ip, &module_name);
if (desc == NULL)
return UWX_LKUP_ERR;
if (module_name == NULL)
return UWX_LKUP_ERR;
status = uwx_find_symbol(info->env,
&info->load_module_cache->symbol_cache,
module_name, ip - desc->text_base,
&func_name, &offset);
i = 0;
rvec = info->rvec;
rvec[i++] = UWX_KEY_MODULE;
rvec[i++] = (uint64_t)(intptr_t)module_name;
rvec[i++] = UWX_KEY_TBASE;
rvec[i++] = desc->text_base;
if (status == UWX_OK) {
rvec[i++] = UWX_KEY_FUNC;
rvec[i++] = (uint64_t)(intptr_t)func_name;
rvec[i++] = UWX_KEY_FUNCSTART;
rvec[i++] = ip - offset;
}
rvec[i++] = UWX_KEY_END;
rvec[i++] = 0;
*resultp = rvec;
return UWX_LKUP_SYMINFO;
}
return UWX_LKUP_ERR;
This is beta4 of libuwx; an ia64 stack unwinder. This code is made available by Hewlett-Packard under the MIT license. The unwinder is small, clean and fast and needed little adaptation for use in the kernel. This import has embedded in it the changes needed to make it build in a kernel environment. To optimize the common case, the kernel will minimize the number of registers saved by not saving the preserved registers. In case access to preserved registers is needed (signal handling, ptrace) the kernel will unwind to the context of the syscall or exception. For this we need an unwinder. Approved by: re (blanket)
2003-05-15 05:04:44 +00:00
}
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