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Store location type in local unwinding mode for x86_64

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Helps support DW_CFA_val_expression
This commit is contained in:
Arun Sharma 2014-10-04 08:50:06 -07:00
parent 781d5d5263
commit 44b867c650
2 changed files with 13 additions and 18 deletions
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2
include/tdep-x86_64/dwarf-config.h
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@ -50,9 +50,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
typedef struct dwarf_loc typedef struct dwarf_loc
{ {
unw_word_t val; unw_word_t val;
#ifndef UNW_LOCAL_ONLY
unw_word_t type; /* see X86_LOC_TYPE_* macros. */ unw_word_t type; /* see X86_LOC_TYPE_* macros. */
#endif
} }
dwarf_loc_t; dwarf_loc_t;

29
include/tdep-x86_64/libunwind_i.h
View file

@ -103,39 +103,36 @@ dwarf_get_uc(const struct dwarf_cursor *cursor)
} }
#define DWARF_GET_LOC(l) ((l).val) #define DWARF_GET_LOC(l) ((l).val)
# define DWARF_LOC_TYPE_MEM (0 << 0)
# define DWARF_LOC_TYPE_FP (1 << 0)
# define DWARF_LOC_TYPE_REG (1 << 1)
# define DWARF_LOC_TYPE_VAL (1 << 2)
# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0)
# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0)
# define DWARF_IS_MEM_LOC(l) ((l).type == DWARF_LOC_TYPE_MEM)
# define DWARF_IS_VAL_LOC(l) (((l).type & DWARF_LOC_TYPE_VAL) != 0)
# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) })
# define DWARF_VAL_LOC(c,v) DWARF_LOC ((v), DWARF_LOC_TYPE_VAL)
# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), DWARF_LOC_TYPE_MEM)
#ifdef UNW_LOCAL_ONLY #ifdef UNW_LOCAL_ONLY
# define DWARF_NULL_LOC DWARF_LOC (0, 0) # define DWARF_NULL_LOC DWARF_LOC (0, 0)
# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0) # define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0)
# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) })
# define DWARF_IS_REG_LOC(l) 0
# define DWARF_IS_MEM_LOC(l) 1
# define DWARF_IS_VAL_LOC(l) 0
# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \ # define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \
x86_64_r_uc_addr(dwarf_get_uc(c), (r)), 0)) x86_64_r_uc_addr(dwarf_get_uc(c), (r)), 0))
# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \ # define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \
x86_64_r_uc_addr(dwarf_get_uc(c), (r)), 0)) x86_64_r_uc_addr(dwarf_get_uc(c), (r)), 0))
# define DWARF_VAL_LOC(c,v) DWARF_NULL_LOC
#else /* !UNW_LOCAL_ONLY */ #else /* !UNW_LOCAL_ONLY */
# define DWARF_LOC_TYPE_FP (1 << 0)
# define DWARF_LOC_TYPE_REG (1 << 1)
# define DWARF_LOC_TYPE_VAL (1 << 2)
# define DWARF_NULL_LOC DWARF_LOC (0, 0) # define DWARF_NULL_LOC DWARF_LOC (0, 0)
# define DWARF_IS_NULL_LOC(l) \ # define DWARF_IS_NULL_LOC(l) \
({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; }) ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; })
# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) })
# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0)
# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0)
# define DWARF_IS_MEM_LOC(l) ((l).type == 0)
# define DWARF_IS_VAL_LOC(l) (((l).type & DWARF_LOC_TYPE_VAL) != 0)
# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG) # define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG)
# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \ # define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \
| DWARF_LOC_TYPE_FP)) | DWARF_LOC_TYPE_FP))
# define DWARF_VAL_LOC(c,v) DWARF_LOC ((v), DWARF_LOC_TYPE_VAL)
#endif /* !UNW_LOCAL_ONLY */ #endif /* !UNW_LOCAL_ONLY */