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(struct dwarf_cursor): Add members eh_args and eh_valid_mask so

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we can track writes to exception-handling argument regs.

2004/11/17 02:43:39-08:00 mostang.com!davidm
(dwarf_cie_info_pool): New declaration.
(dwarf_cie_info_t): New type.
(dwarf_state_record): Drop cfa_is_sp member.
(dwarf_extract_proc_info_from_fde): Rename from dwarf_parse_fde.

2004/10/25 17:38:51+02:00 homeip.net!davidm
Fix typo: DW_CFA_CFA_expression -> DW_CFA_expression.

(Logical change 1.290)
This commit is contained in:
mostang.com!davidm 2005-05-03 09:13:17 +00:00
parent caa61dfec1
commit adeb9b5984
1 changed files with 33 additions and 8 deletions
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41
include/dwarf.h
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@ -1,5 +1,5 @@
/* libunwind - a platform-independent unwind library
Copyright (c) 2003 Hewlett-Packard Development Company, L.P.
Copyright (c) 2003-2004 Hewlett-Packard Development Company, L.P.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
@ -145,7 +145,7 @@ typedef enum
DW_CFA_def_cfa_register = 0x0d,
DW_CFA_def_cfa_offset = 0x0e,
DW_CFA_def_cfa_expression = 0x0f,
DW_CFA_CFA_expression = 0x10,
DW_CFA_expression = 0x10,
DW_CFA_offset_extended_sf = 0x11,
DW_CFA_def_cfa_sf = 0x12,
DW_CFA_def_cfa_offset_sf = 0x13,
@ -199,6 +199,7 @@ dwarf_cfa_t;
#define DW_EH_PE_aligned 0x50 /* aligned pointer */
extern struct mempool dwarf_reg_state_pool;
extern struct mempool dwarf_cie_info_pool;
typedef enum
{
@ -237,6 +238,25 @@ typedef struct dwarf_reg_state
}
dwarf_reg_state_t;
typedef struct dwarf_cie_info
{
unw_word_t cie_instr_start; /* start addr. of CIE "initial_instructions" */
unw_word_t cie_instr_end; /* end addr. of CIE "initial_instructions" */
unw_word_t fde_instr_start; /* start addr. of FDE "instructions" */
unw_word_t fde_instr_end; /* end addr. of FDE "instructions" */
unw_word_t code_align; /* code-alignment factor */
unw_word_t data_align; /* data-alignment factor */
unw_word_t ret_addr_column; /* column of return-address register */
unw_word_t handler; /* address of personality-routine */
uint16_t abi;
uint16_t tag;
uint8_t fde_encoding;
uint8_t lsda_encoding;
unsigned int sized_augmentation : 1;
unsigned int have_abi_marker : 1;
}
dwarf_cie_info_t;
typedef struct dwarf_state_record
{
unsigned char fde_encoding;
@ -256,12 +276,13 @@ typedef struct dwarf_cursor
unw_word_t ip; /* instruction pointer */
unw_word_t args_size; /* size of arguments */
unw_word_t ret_addr_column; /* column for return-address */
unw_word_t eh_args[UNW_TDEP_NUM_EH_REGS];
unsigned int eh_valid_mask;
dwarf_loc_t loc[DWARF_NUM_PRESERVED_REGS];
unsigned int pi_valid :1; /* is proc_info valid? */
unsigned int pi_is_dynamic :1; /* proc_info found via dynamic proc info? */
unsigned int cfa_is_sp :1; /* TRUE if stack-pointer is CFA */
unw_proc_info_t pi; /* info about current procedure */
}
dwarf_cursor_t;
@ -273,7 +294,8 @@ dwarf_cursor_t;
#define dwarf_put_unwind_info UNW_OBJ (dwarf_put_unwind_info)
#define dwarf_put_unwind_info UNW_OBJ (dwarf_put_unwind_info)
#define dwarf_eval_expr UNW_OBJ (dwarf_eval_expr)
#define dwarf_parse_fde UNW_OBJ (dwarf_parse_fde)
#define dwarf_extract_proc_info_from_fde \
UNW_OBJ (dwarf_extract_proc_info_from_fde)
#define dwarf_find_save_locs UNW_OBJ (dwarf_find_save_locs)
#define dwarf_create_state_record UNW_OBJ (dwarf_create_state_record)
#define dwarf_make_proc_info UNW_OBJ (dwarf_make_proc_info)
@ -294,9 +316,12 @@ extern void dwarf_put_unwind_info (unw_addr_space_t as,
extern int dwarf_eval_expr (struct dwarf_cursor *c, unw_word_t *addr,
unw_word_t len, unw_word_t *valp,
int *is_register);
extern int dwarf_parse_fde (unw_addr_space_t as, unw_accessors_t *a,
unw_word_t *addr, unw_proc_info_t *pi,
unw_dyn_dwarf_fde_info_t *dfi, void *arg);
extern int dwarf_extract_proc_info_from_fde (unw_addr_space_t as,
unw_accessors_t *a,
unw_word_t *fde_addr,
unw_proc_info_t *pi,
int need_unwind_info,
void *arg);
extern int dwarf_find_save_locs (struct dwarf_cursor *c);
extern int dwarf_create_state_record (struct dwarf_cursor *c,
dwarf_state_record_t *sr);
@ -305,7 +330,7 @@ extern int dwarf_read_encoded_pointer (unw_addr_space_t as,
unw_accessors_t *a,
unw_word_t *addr,
unsigned char encoding,
unw_proc_info_t *pi,
const unw_proc_info_t *pi,
unw_word_t *valp, void *arg);
extern int dwarf_step (struct dwarf_cursor *c);