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mostang.com!davidm 2002-12-12 09:17:41 +00:00
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182
include/internal.h Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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 internal_h
#define internal_h
/* Platform-independent libunwind-internal declarations. */
#include <assert.h>
#include <pthread.h>
#include <libunwind.h>
#include <tdep.h>
#ifdef __GNUC__
# define HIDDEN __attribute__((visibility ("hidden")))
#else
# define HIDDEN
#endif
/* Make it easy to write thread-safe code which may or may not be
linked against libpthread. The macros below can be used
unconditionally and if -lpthread is around, they'll call the
corresponding routines otherwise, they do nothing. */
#pragma weak pthread_mutex_lock
#pragma weak pthread_mutex_unlock
#define mutex_lock(l) (pthread_mutex_lock ? pthread_mutex_lock (l) : 0)
#define mutex_unlock(l) (pthread_mutex_unlock ? pthread_mutex_unlock (l) : 0)
#define UNWI_OBJ(fn) UNW_PASTE(UNW_PREFIX,UNW_PASTE(I,fn))
#define UNWI_ARCH_OBJ(fn) UNW_PASTE(UNW_PASTE(UNW_PASTE(_UI,UNW_TARGET),_), fn)
extern int UNWI_OBJ(find_dynamic_proc_info) (unw_addr_space_t as,
unw_word_t ip,
unw_proc_info_t *pi,
int need_unwind_info, void *arg);
extern int UNWI_ARCH_OBJ(extract_dynamic_proc_info) (unw_addr_space_t as,
unw_word_t ip,
unw_proc_info_t *pi,
unw_dyn_info_t *di,
int need_unwind_info,
void *arg);
extern void UNWI_OBJ(put_dynamic_unwind_info) (unw_addr_space_t as,
unw_proc_info_t *pi, void *arg);
extern int UNWI_ARCH_OBJ(dyn_remote_find_proc_info) (unw_addr_space_t as,
unw_word_t ip,
unw_proc_info_t *pi,
unw_word_t *generation,
int need_unwind_info,
void *arg);
extern void UNWI_ARCH_OBJ(dyn_remote_put_unwind_info) (unw_addr_space_t as,
unw_proc_info_t *pi,
void *arg);
extern int UNWI_ARCH_OBJ(get_proc_name) (unw_addr_space_t as,
unw_word_t ip, int is_local,
char *buf, size_t buf_len, void *arg);
#define unwi_find_dynamic_proc_info(as,ip,pi,n,arg) \
UNWI_OBJ(find_dynamic_proc_info)(as, ip, pi, n, arg)
#define unwi_extract_dynamic_proc_info(as,ip,pi,di,n,arg) \
UNWI_ARCH_OBJ(extract_dynamic_proc_info)(as, ip, pi, di, n, arg)
#define unwi_put_dynamic_unwind_info(as,pi,arg) \
UNWI_OBJ(put_dynamic_unwind_info)(as, pi, arg)
/* These handle the remote (cross-address-space) case of accessing
dynamic unwind info. */
#define unwi_dyn_remote_find_proc_info(as,i,p,g,n,arg) \
UNWI_ARCH_OBJ(dyn_remote_find_proc_info)(as, i, p, g, n, arg)
#define unwi_dyn_remote_put_unwind_info(as,p,arg) \
UNWI_ARCH_OBJ(dyn_remote_put_unwind_info)(as, p, arg)
#define unwi_get_proc_name(as,ip,l,b,s,arg) \
UNWI_ARCH_OBJ(get_proc_name)(as, ip, l, b, s, arg)
extern unw_dyn_info_list_t _U_dyn_info_list;
extern pthread_mutex_t _U_dyn_info_list_lock;
#define WSIZE (sizeof (unw_word_t))
static inline int
fetch8 (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, int8_t *valp, void *arg)
{
unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr;
int ret;
*addr += 1;
ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
#if __BYTE_ORDER == __LITTLE_ENDIAN
val >>= 8*off;
#else
val >>= 8*(WSIZE - 1 - off);
#endif
*valp = val & 0xff;
return ret;
}
static inline int
fetch16 (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, int16_t *valp, void *arg)
{
unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr;
int ret;
assert ((off & 0x1) == 0);
*addr += 2;
ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
#if __BYTE_ORDER == __LITTLE_ENDIAN
val >>= 8*off;
#else
val >>= 8*(WSIZE - 2 - off);
#endif
*valp = val & 0xffff;
return ret;
}
static inline int
fetch32 (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, int32_t *valp, void *arg)
{
unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr;
int ret;
assert ((off & 0x3) == 0);
*addr += 4;
ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
#if __BYTE_ORDER == __LITTLE_ENDIAN
val >>= 8*off;
#else
val >>= 8*(WSIZE - 4 - off);
#endif
*valp = val & 0xffffffff;
return ret;
}
static inline int
fetchw (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, unw_word_t *valp, void *arg)
{
int ret;
ret = (*a->access_mem) (as, *addr, valp, 0, arg);
*addr += WSIZE;
return ret;
}
#endif /* internal_h */

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include/tdep-ia64.h Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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 TDEP_IA64_H
#define TDEP_IA64_H
/* Target-dependent definitions that are internal to libunwind but need
to be shared with target-independent code. */
#include <endian.h>
#include <libunwind.h>
enum ia64_pregnum
{
/* primary unat: */
IA64_REG_PRI_UNAT_GR,
IA64_REG_PRI_UNAT_MEM,
/* register stack */
IA64_REG_BSP, /* register stack pointer */
IA64_REG_BSPSTORE,
IA64_REG_PFS, /* previous function state */
IA64_REG_RNAT,
/* memory stack */
IA64_REG_PSP, /* previous memory stack pointer */
/* return pointer: */
IA64_REG_RP,
/* preserved registers: */
IA64_REG_R4, IA64_REG_R5, IA64_REG_R6, IA64_REG_R7,
IA64_REG_NAT4, IA64_REG_NAT5, IA64_REG_NAT6, IA64_REG_NAT7,
IA64_REG_UNAT, IA64_REG_PR, IA64_REG_LC, IA64_REG_FPSR,
IA64_REG_B1, IA64_REG_B2, IA64_REG_B3, IA64_REG_B4, IA64_REG_B5,
IA64_REG_F2, IA64_REG_F3, IA64_REG_F4, IA64_REG_F5,
IA64_REG_F16, IA64_REG_F17, IA64_REG_F18, IA64_REG_F19,
IA64_REG_F20, IA64_REG_F21, IA64_REG_F22, IA64_REG_F23,
IA64_REG_F24, IA64_REG_F25, IA64_REG_F26, IA64_REG_F27,
IA64_REG_F28, IA64_REG_F29, IA64_REG_F30, IA64_REG_F31,
IA64_NUM_PREGS
};
#include "ia64/script.h"
struct unw_addr_space
{
struct unw_accessors acc;
int big_endian;
unw_caching_policy_t caching_policy;
uint32_t cache_generation;
unw_word_t dyn_generation; /* see dyn-common.h */
struct ia64_script_cache global_cache;
};
extern int UNW_ARCH_OBJ (search_unwind_table) (unw_addr_space_t as,
unw_word_t ip,
unw_dyn_info_t *di,
unw_proc_info_t *pi,
int need_unwind_info,
void *arg);
extern void UNW_ARCH_OBJ (put_unwind_info) (unw_addr_space_t as,
unw_proc_info_t *pi, void *arg);
/* Platforms that support UNW_INFO_FORMAT_TABLE need to define
tdep_search_unwind_table. */
#define tdep_search_unwind_table(a,b,c,d,e,f) \
UNW_ARCH_OBJ(search_unwind_table) (a,b,c,d,e,f)
#define tdep_put_unwind_info(a,b,c) \
UNW_ARCH_OBJ(put_unwind_info)(a,b,c)
#endif /* TDEP_IA64_H */

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src/Gput_dynamic_unwind_info.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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. */
#include "internal.h"
HIDDEN void
unwi_put_dynamic_unwind_info (unw_addr_space_t as, unw_proc_info_t *pi,
void *arg)
{
switch (pi->format)
{
case UNW_INFO_FORMAT_DYNAMIC:
unwi_dyn_remote_put_unwind_info (as, pi, arg);
break;
case UNW_INFO_FORMAT_TABLE:
#ifdef tdep_put_unwind_info
tdep_put_unwind_info (as, pi, arg);
break;
#endif
/* fall through */
default:
break;
}
}

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src/Lput_dynamic_unwind_info.c Normal file
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#ifndef UNW_REMOTE_ONLY
#define UNW_LOCAL_ONLY
#include "Gput_dynamic_unwind_info.c"
#endif

46
src/dyn-cancel.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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. */
#include "internal.h"
void
_U_dyn_cancel (unw_dyn_info_t *di)
{
mutex_lock (&_U_dyn_info_list_lock);
{
++_U_dyn_info_list.generation;
if (di->prev)
di->prev->next = di->next;
else
_U_dyn_info_list.first = di->next;
if (di->next)
di->next->prev = di->prev;
}
mutex_unlock (&_U_dyn_info_list_lock);
di->next = di->prev = NULL;
}

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src/dyn-extract.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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. */
#include "internal.h"
#include "tdep.h"
HIDDEN int
unwi_extract_dynamic_proc_info (unw_addr_space_t as, unw_word_t ip,
unw_proc_info_t *pi, unw_dyn_info_t *di,
int need_unwind_info, void *arg)
{
pi->start_ip = di->start_ip;
pi->end_ip = di->end_ip;
pi->gp = di->gp;
pi->format = di->format;
switch (di->format)
{
case UNW_INFO_FORMAT_DYNAMIC:
pi->handler = di->u.pi.handler;
pi->flags = di->u.pi.flags;
if (need_unwind_info)
pi->unwind_info = di;
else
pi->unwind_info = NULL;
return 0;
case UNW_INFO_FORMAT_TABLE:
#ifdef tdep_search_unwind_table
/* call platform-specific search routine: */
return tdep_search_unwind_table (as, ip, di, pi, need_unwind_info, arg);
#else
/* fall through */
#endif
default:
break;
}
return -UNW_EINVAL;
}

259
src/dyn-remote.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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. */
#include <endian.h>
#include <stdlib.h>
#include "internal.h"
static void
free_regions (unw_dyn_region_info_t *region)
{
if (region->next)
free_regions (region->next);
free (region);
}
static int
intern_op (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
unw_dyn_op_t *op, void *arg)
{
int ret;
if ((ret = fetch8 (as, a, addr, &op->tag, arg)) < 0
|| (ret = fetch8 (as, a, addr, &op->qp, arg)) < 0
|| (ret = fetch16 (as, a, addr, &op->reg, arg)) < 0
|| (ret = fetch32 (as, a, addr, &op->when, arg)) < 0
|| (ret = fetchw (as, a, addr, &op->val, arg)) < 0)
return ret;
return 0;
}
static int
intern_regions (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, unw_dyn_region_info_t **regionp, void *arg)
{
uint32_t insn_count, op_count;
unw_dyn_region_info_t *region;
unw_word_t next_addr;
int i, ret;
*regionp = NULL;
if ((ret = fetchw (as, a, addr, &next_addr, arg)) < 0
|| (ret = fetch32 (as, a, addr, &insn_count, arg)) < 0
|| (ret = fetch32 (as, a, addr, &op_count, arg)) < 0)
return ret;
region = calloc (1, _U_dyn_region_info_size (op_count));
if (!region)
{
ret = -UNW_ENOMEM;
goto out;
}
region->insn_count = insn_count;
region->op_count = op_count;
for (i = 0; i < op_count; ++i)
if ((ret = intern_op (as, a, addr, region->op + i, arg)) < 0)
goto out;
if (next_addr)
if ((ret = intern_regions (as, a, &next_addr, &region->next, arg)) < 0)
goto out;
*regionp = region;
return 0;
out:
if (region)
free_regions (region);
return ret;
}
static int
intern_array (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, unw_word_t table_len, unw_word_t **table_data,
void *arg)
{
unw_word_t *data = calloc (table_len, WSIZE);
int ret = 0, i;
if (!data)
{
ret = -UNW_ENOMEM;
goto out;
}
for (i = 0; i < table_len; ++i)
if (fetchw (as, a, addr, data + i, arg) < 0)
goto out;
*table_data = data;
return 0;
out:
if (data)
free (data);
return ret;
}
static void
free_dyn_info (unw_dyn_info_t *di)
{
switch (di->format)
{
case UNW_INFO_FORMAT_DYNAMIC:
if (di->u.pi.regions)
{
free_regions (di->u.pi.regions);
di->u.pi.regions = NULL;
}
break;
case UNW_INFO_FORMAT_TABLE:
if (di->u.ti.table_data)
{
free (di->u.ti.table_data);
di->u.ti.table_data = NULL;
}
break;
default:
break;
}
}
static int
intern_dyn_info (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, unw_dyn_info_t *di, void *arg)
{
int ret;
switch (di->format)
{
case UNW_INFO_FORMAT_DYNAMIC:
if ((ret = fetchw (as, a, addr, &di->u.pi.name_ptr, arg)) < 0
|| (ret = fetchw (as, a, addr, &di->u.pi.handler, arg)) < 0
|| (ret = fetch32 (as, a, addr, &di->u.pi.flags, arg)) < 0
|| (ret = fetch32 (as, a, addr, &di->u.pi.pad0, arg)) < 0
|| (ret = intern_regions (as, a, addr, &di->u.pi.regions, arg)) < 0)
goto out;
break;
case UNW_INFO_FORMAT_TABLE:
if ((ret = fetchw (as, a, addr, &di->u.ti.name_ptr, arg)) < 0
|| (ret = fetchw (as, a, addr, &di->u.ti.segbase, arg)) < 0
|| (ret = fetchw (as, a, addr, &di->u.ti.table_len, arg)) < 0
|| (ret = intern_array (as, a, addr, di->u.ti.table_len,
&di->u.ti.table_data, arg)) < 0)
goto out;
break;
default:
ret = -UNW_ENOINFO;
goto out;
}
return 0;
out:
free_dyn_info (di);
return ret;
}
HIDDEN int
unwi_dyn_remote_find_proc_info (unw_addr_space_t as, unw_word_t ip,
unw_proc_info_t *pi, unw_word_t *genp,
int need_unwind_info, void *arg)
{
unw_accessors_t *a = unw_get_accessors (as);
unw_word_t dyn_list_addr, addr, next_addr, gen1, gen2;
unw_word_t start_ip, end_ip;
unw_dyn_info_t di;
int32_t pad;
int ret;
ret = (*a->get_dyn_info_list_addr) (as, &dyn_list_addr, arg);
if (ret < 0)
return ret;
do
{
addr = dyn_list_addr;
if ((ret = fetchw (as, a, &addr, &gen1, arg)) < 0
|| (ret = fetchw (as, a, &addr, &next_addr, arg)) < 0)
return ret;
for (addr = next_addr; addr != 0; addr = next_addr)
{
if ((ret = fetchw (as, a, &addr, &next_addr, arg)) < 0
|| (ret = fetchw (as, a, &addr, &start_ip, arg)) < 0
|| (ret = fetchw (as, a, &addr, &end_ip, arg)) < 0)
return ret;
if (ip >= di.start_ip && ip < di.end_ip)
{
if ((ret = fetchw (as, a, &addr, &di.gp, arg)) < 0
|| (ret = fetch32 (as, a, &addr, &di.format, arg)) < 0
|| (ret = fetch32 (as, a, &addr, &pad, arg)) < 0)
return ret;
if (need_unwind_info)
if ((ret = intern_dyn_info (as, a, &addr, &di, arg)) < 0)
return ret;
ret = unwi_extract_dynamic_proc_info (as, ip, pi, &di,
need_unwind_info, arg);
if (ret < 0)
{
free_dyn_info (&di);
return ret;
}
return 0;
}
}
/* Recheck generation number to ensure things didn't change
underneath us: */
addr = dyn_list_addr;
if ((ret = fetchw (as, a, &addr, &gen2, arg)) < 0)
return ret;
}
while (gen1 != gen2);
*genp = gen1;
return 0;
}
HIDDEN void
unwi_dyn_remote_put_unwind_info (unw_addr_space_t as, unw_proc_info_t *pi,
void *arg)
{
if (!pi->unwind_info)
return;
free_dyn_info(pi->unwind_info);
pi->unwind_info = NULL;
}

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src/get_proc_name.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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. */
#include <endian.h>
#include "internal.h"
static int
intern_string (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t addr, char *buf, size_t buf_len, void *arg)
{
int ret, i;
for (i = 0; i < buf_len; ++i)
{
if ((ret = fetch8 (as, a, &addr, buf + i, arg)) < 0)
return ret;
if (buf[i] == '\0')
return 0; /* copied full string; return success */
}
buf[buf_len - 1] = '\0'; /* ensure string is NUL terminated */
return -UNW_ENOMEM;
}
HIDDEN int
unwi_get_proc_name (unw_addr_space_t as, unw_word_t ip, int is_local,
char *buf, size_t buf_len, void *arg)
{
unw_accessors_t *a = unw_get_accessors (as);
unw_proc_info_t pi;
int ret;
buf[0] = '\0'; /* always return a valid string, even if it's empty */
ret = unwi_find_dynamic_proc_info (as, ip, &pi, 1, arg);
if (ret == 0)
{
unw_dyn_info_t *di = pi.unwind_info;
switch (di->format)
{
case UNW_INFO_FORMAT_DYNAMIC:
ret = intern_string (as, a, di->u.pi.name_ptr, buf, buf_len, arg);
break;
case UNW_INFO_FORMAT_TABLE:
/* XXX should we create a fake name, e.g.: "tablenameN",
where N is the index of the function in the table??? */
ret = -UNW_ENOINFO;
break;
default:
ret = -UNW_EINVAL;
break;
}
unwi_put_dynamic_unwind_info (as, &pi, arg);
return ret;
}
if (ret != -UNW_ENOINFO)
return ret;
/* not a dynamic procedure */
if (!is_local)
/* It makes no sense to implement get_proc_name() for remote
address spaces because that would require a callback and in
that case, the application using libunwind needs to know how to
look up a procedure name anyhow. */
return -UNW_ENOINFO;
/* XXX implement me: look up ELF executable covering IP, then check
dynamic and regular symbol tables for a good name. */
return -UNW_ENOINFO;
}

35
src/ia64/Gget_proc_name.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
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. */
#include "unwind_i.h"
int
unw_get_proc_name (unw_cursor_t *cursor, char *buf, size_t buf_len)
{
struct ia64_cursor *c = (struct ia64_cursor *) cursor;
return unwi_get_proc_name (c->as, c->ip, c->as == unw_local_addr_space,
buf, buf_len, c->as_arg);
}

4
src/ia64/Lget_proc_name.c Normal file
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#ifndef UNW_REMOTE_ONLY
#define UNW_LOCAL_ONLY
#include "Gget_proc_name.c"
#endif