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Add various constants

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2008-04-26  Soren Sandmann <sandmann@daimi.au.dk>

        * unwind.c: Add various constants



svn path=/trunk/; revision=412
This commit is contained in:
Soren Sandmann
2008-04-26 07:24:08 +00:00
committed by Søren Sandmann Pedersen
parent f49c3b5d2e
commit f585e31fde
2 changed files with 68 additions and 8 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2008-04-26 Soren Sandmann <sandmann@daimi.au.dk>
* unwind.c: Add various constants
Mon Apr 21 15:54:24 2008 Søren Sandmann <sandmann@redhat.com> Mon Apr 21 15:54:24 2008 Søren Sandmann <sandmann@redhat.com>
* binfile.c: More build-id support * binfile.c: More build-id support

68
unwind.c
View File

@ -2,7 +2,38 @@
#include "binparser.h" #include "binparser.h"
#include <string.h> #include <string.h>
/* FIXME: endianness, 64 bit */ /* Pointer encodings, from dwarf2.h. */
typedef enum
{
DW_EH_PE_absptr = 0x00, /* */
DW_EH_PE_omit = 0xff, /* Value is not there */
DW_EH_PE_uleb128 = 0x01,
DW_EH_PE_udata2 = 0x02,
DW_EH_PE_udata4 = 0x03,
DW_EH_PE_udata8 = 0x04,
DW_EH_PE_sleb128 = 0x09,
DW_EH_PE_sdata2 = 0x0A,
DW_EH_PE_sdata4 = 0x0B,
DW_EH_PE_sdata8 = 0x0C,
DW_EH_PE_signed = 0x08,
DW_EH_PE_pcrel = 0x10, /* Value is *(cur + val) */
DW_EH_PE_textrel = 0x20, /* Value is *(&text + val) */
DW_EH_PE_datarel = 0x30, /* Value is *(&data + val) */
DW_EH_PE_funcrel = 0x40, /* Value is *(fde.pc_begin + val) */
DW_EH_PE_aligned = 0x50, /* Value is absolute, and stored
* at next align */
DW_EH_PE_indirect = 0x80
} PointerEncoding;
typedef struct EncodedPointer EncodedPointer;
struct EncodedPointer
{
PointerEncoding encoding;
guint64 value;
};
static guint64 static guint64
get_length (const guchar **data) get_length (const guchar **data)
@ -225,17 +256,24 @@ decode_instruction (const guchar **data)
} }
} }
typedef struct CIE CIE;
struct CIE
{
PointerEncoding encoding;
};
static void static void
decode_cie (const guchar **data, const guchar *end) decode_cie (const guchar **data, const guchar *end)
{ {
gboolean has_augmentation; gboolean has_augmentation;
guint64 aug_len; guint64 aug_len;
char *augmentation;
CIE *cie;
int i, field;
g_print ("version: %d\n", *(*data)++); g_print ("version: %d\n", *(*data)++);
g_print ("augmentation: %s\n", *data); augmentation = (*data);
has_augmentation = strchr (*data, 'z');
*data += strlen (*data) + 1; *data += strlen (*data) + 1;
@ -245,10 +283,27 @@ decode_cie (const guchar **data, const guchar *end)
g_print ("return register: %llu\n", decode_uleb128 (data)); g_print ("return register: %llu\n", decode_uleb128 (data));
g_print ("augmentation: %s\n", augmentation);
if (augmentation[0] == 'z')
{
aug_len = decode_uleb128 (data);
g_print ("len: %llu\n", aug_len);
for (i = 1; augmentation[i] != 0; ++i)
{
if (augmentation[i] == 'L')
{
}
}
}
if (has_augmentation) if (has_augmentation)
{ {
g_print ("augmentation length: %llu\n", g_print ("%x\n", **data);
(aug_len = decode_uleb128 (data)));
*data += aug_len; *data += aug_len;
} }
@ -338,6 +393,7 @@ unwind (ElfParser *elf)
} }
while (decode_entry (&data, eh_f)) while (decode_entry (&data, eh_f))
return ;
; ;
} }