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First implementation for solaris. Debug mode is added

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esil 2010-07-29 21:38:03 -07:00
parent debb268754
commit 3d4e3b63a0
3 changed files with 143 additions and 97 deletions
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1
src/CMakeLists.txt
View file

@ -129,4 +129,5 @@ else()
endif()
add_library(unwind STATIC ${libunwind_sources_common} ${libunwind_sources_${target}})
set_property(TARGET unwind PROPERTY COMPILE_DEFINITIONS_DEBUG DEBUG)

229
src/dwarf/Gfind_proc_info-lsb.c
View file

@ -48,20 +48,6 @@ struct table_entry
#endif
#ifdef HAVE_DL_ITERATE_PHDR
struct callback_data
{
/* in: */
unw_word_t ip; /* instruction-pointer we're looking for */
void *arg;
/* out: */
unw_word_t fde_addr; /* FDE address */
unw_word_t fde_base; /* FDE base */
unw_word_t ip_offset; /* ip offset */
unw_word_t gp; /* global-pointer value for this procedure */
};
static int
linear_search (unw_addr_space_t as, unw_word_t ip,
unw_word_t eh_frame_start, unw_word_t eh_frame_end,
@ -89,6 +75,102 @@ linear_search (unw_addr_space_t as, unw_word_t ip,
return -UNW_ENOINFO;
}
/* Searches for FDE for specific ip in eh_frame_hdr.
Returns 0 if success. */
static int
search_fde_in_eh_frame(unw_word_t ip, unw_word_t hdr_addr, unw_word_t gp,
unw_word_t eh_frame_end, unw_word_t *fde_addr, void *arg,
const char * name)
{
unw_accessors_t *a;
unw_word_t addr, eh_frame_start, fde_count;
int ret;
struct dwarf_eh_frame_hdr *hdr = (struct dwarf_eh_frame_hdr *)hdr_addr;
if (hdr->version != DW_EH_VERSION)
{
Debug (1, "table `%s' has unexpected version %d\n",
name, hdr->version);
return -UNW_ENOINFO;
}
a = unw_get_accessors (unw_local_addr_space);
addr = (unw_word_t) (uintptr_t) (hdr + 1);
/* (Optionally) read eh_frame_ptr: */
if ((ret = dwarf_read_encoded_pointer (unw_local_addr_space, a,
&addr, hdr->eh_frame_ptr_enc, gp, 0,
&eh_frame_start, NULL)) < 0)
return ret;
/* (Optionally) read fde_count: */
if ((ret = dwarf_read_encoded_pointer (unw_local_addr_space, a,
&addr, hdr->fde_count_enc, gp, 0,
&fde_count, NULL)) < 0)
return ret;
if (hdr->table_enc != (DW_EH_PE_datarel | DW_EH_PE_sdata4))
{
int err;
/* If there is no search table or it has an unsupported
encoding, fall back on linear search. */
if (hdr->table_enc == DW_EH_PE_omit)
Debug (4, "table `%s' lacks search table; doing linear search\n",
name);
else
Debug (4, "table `%s' has encoding 0x%x; doing linear search\n",
name, hdr->table_enc);
if (hdr->fde_count_enc == DW_EH_PE_omit)
fde_count = ~0UL;
if (hdr->eh_frame_ptr_enc == DW_EH_PE_omit)
abort ();
/* XXX we know how to build a local binary search table for
.debug_frame, so we could do that here too. */
return linear_search (unw_local_addr_space, ip,
eh_frame_start, eh_frame_end, fde_count,
fde_addr, NULL);
}
else
{
int err;
size_t table_len = (fde_count * sizeof (struct table_entry)
/ sizeof (unw_word_t));
/* For the binary-search table in the eh_frame_hdr, data-relative
means relative to the start of that section... */
unw_word_t sbase = (unw_word_t) (uintptr_t) hdr;
Debug (15, "found table `%s': sbase=0x%lx, len=%lu, gp=0x%lx, "
"table_data=0x%lx\n", (char *) (uintptr_t) name,
(long) sbase, (long) table_len,
(long) gp, (long) addr);
return dwarf_search_unwind_table_ (unw_local_addr_space, ip,
sbase, table_len,
addr, 0,
fde_addr, arg);
}
}
#ifdef HAVE_DL_ITERATE_PHDR
struct callback_data
{
/* in: */
unw_word_t ip; /* instruction-pointer we're looking for */
void *arg;
/* out: */
unw_word_t fde_addr; /* FDE address */
unw_word_t fde_base; /* FDE base */
unw_word_t ip_offset; /* ip offset */
unw_word_t gp; /* global-pointer value for this procedure */
};
#ifdef CONFIG_DEBUG_FRAME
/* Load .debug_frame section from FILE. Allocates and returns space
in *BUF, and sets *BUFSIZE to its size. IS_LOCAL is 1 if using the
@ -397,86 +479,6 @@ debug_frame_tab_compare (const void *a, const void *b)
return 0;
}
/* Searches for FDE for specific ip in eh_frame_hdr.
Returns 0 if success. */
static int
search_fde_in_eh_frame(unw_word_t ip, unw_word_t hdr_addr, unw_word_t gp,
unw_word_t eh_frame_end, unw_word_t *fde_addr, void *arg)
{
unw_accessors_t *a;
unw_word_t addr, eh_frame_start, fde_count;
int ret;
struct dwarf_eh_frame_hdr *hdr = (struct dwarf_eh_frame_hdr *)hdr_addr;
if (hdr->version != DW_EH_VERSION)
{
Debug (1, "table `%s' has unexpected version %d\n",
info->dlpi_name, hdr->version);
return -UNW_ENOINFO;
}
a = unw_get_accessors (unw_local_addr_space);
addr = (unw_word_t) (uintptr_t) (hdr + 1);
/* (Optionally) read eh_frame_ptr: */
if ((ret = dwarf_read_encoded_pointer (unw_local_addr_space, a,
&addr, hdr->eh_frame_ptr_enc, gp, 0,
&eh_frame_start, NULL)) < 0)
return ret;
/* (Optionally) read fde_count: */
if ((ret = dwarf_read_encoded_pointer (unw_local_addr_space, a,
&addr, hdr->fde_count_enc, gp, 0,
&fde_count, NULL)) < 0)
return ret;
if (hdr->table_enc != (DW_EH_PE_datarel | DW_EH_PE_sdata4))
{
int err;
/* If there is no search table or it has an unsupported
encoding, fall back on linear search. */
if (hdr->table_enc == DW_EH_PE_omit)
Debug (4, "table `%s' lacks search table; doing linear search\n",
info->dlpi_name);
else
Debug (4, "table `%s' has encoding 0x%x; doing linear search\n",
info->dlpi_name, hdr->table_enc);
if (hdr->fde_count_enc == DW_EH_PE_omit)
fde_count = ~0UL;
if (hdr->eh_frame_ptr_enc == DW_EH_PE_omit)
abort ();
/* XXX we know how to build a local binary search table for
.debug_frame, so we could do that here too. */
return linear_search (unw_local_addr_space, ip,
eh_frame_start, eh_frame_end, fde_count,
fde_addr, NULL);
}
else
{
int err;
size_t table_len = (fde_count * sizeof (struct table_entry)
/ sizeof (unw_word_t));
/* For the binary-search table in the eh_frame_hdr, data-relative
means relative to the start of that section... */
unw_word_t sbase = (unw_word_t) (uintptr_t) hdr;
Debug (15, "found table `%s': sbase=0x%lx, len=%lu, gp=0x%lx, "
"table_data=0x%lx\n", (char *) (uintptr_t) info->dlpi_name,
(long) sbase, (long) table_len,
(long) gp, (long) addr);
return dwarf_search_unwind_table_ (unw_local_addr_space, ip,
sbase, table_len,
addr, 0,
fde_addr, arg);
}
}
/* ptr is a pointer to a callback_data structure and, on entry,
member ip contains the instruction-pointer we're looking
for. */
@ -584,7 +586,7 @@ callback (struct dl_phdr_info *info, size_t size, void *ptr)
eh_frame_end = (unw_word_t)max_load_addr; // Can we do better?
ret = search_fde_in_eh_frame(ip, (unw_word_t)(p_eh_hdr->p_vaddr + load_base),
cb_data->gp, eh_frame_end, &cb_data->fde_addr,
cb_data->arg);
cb_data->arg, info->name);
if (ret < 0)
return ret;
@ -770,7 +772,42 @@ static int
find_proc_fde(unw_word_t ip, unw_word_t *fde_addr,
unw_word_t *gp, unw_word_t *fde_base,
unw_word_t *ip_offset, void *arg) {
return -1;
Dl_amd64_unwindinfo dlef;
void* data;
void* data_end;
int fp_enc, fc_enc, ft_enc;
unsigned char *pi, *pj;
ptrdiff_t reloc;
uintptr_t base;
int ret;
dlef.dlui_version = 1;
/* Locate the appropiate exception_range_entry table first */
if (0 == dlamd64getunwind((void*)ip, &dlef)) {
return -UNW_ENOINFO;
}
/*
* you now know size and position of block of data needed for
* binary search ??REMOTE??
*/
data = dlef.dlui_unwindstart;
if (0 == data)
return -UNW_ENOINFO;
base = (uintptr_t)data;
data_end = dlef.dlui_unwindend;
reloc = 0;
/* ??REMOTE?? */
*gp = 0;
*fde_base = 0;
*ip_offset = 0;
return search_fde_in_eh_frame(ip, (unw_word_t)data, 0,
(unw_word_t)data_end, fde_addr, arg,
dlef.dlui_objname);
}
#endif // HAVE_DL_ITERATE_PHDR

10
src/x86_64/Gis_signal_frame.c
View file

@ -57,7 +57,15 @@ unw_is_signal_frame (unw_cursor_t *cursor)
return (w0 == 0x0f0000000fc0c748 && w1 == 0x05);
}
#else /* __linux__ */
#elif defined(__sun) /* __linux__ */
PROTECTED int
unw_is_signal_frame (unw_cursor_t *cursor)
{
return 0;
}
#else /* __sun */
PROTECTED int
unw_is_signal_frame (unw_cursor_t *cursor)