diff options
| -rw-r--r-- | gdb/dwarf2loc.c | 46 | ||||
| -rw-r--r-- | gdb/dwarf2loc.h | 6 |
2 files changed, 44 insertions, 8 deletions
diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c index 548e468..560e16f 100644 --- a/gdb/dwarf2loc.c +++ b/gdb/dwarf2loc.c @@ -2601,11 +2601,14 @@ dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton, /* See dwarf2loc.h. */ int -dwarf2_evaluate_property (const struct dynamic_prop *prop, +dwarf2_evaluate_property_signed (const struct dynamic_prop *prop, struct frame_info *frame, struct property_addr_info *addr_stack, - CORE_ADDR *value) + CORE_ADDR *value, + int is_signed) { + int rc = 0; + if (prop == NULL) return 0; @@ -2629,7 +2632,7 @@ dwarf2_evaluate_property (const struct dynamic_prop *prop, *value = value_as_address (val); } - return 1; + rc = 1; } } break; @@ -2651,7 +2654,7 @@ dwarf2_evaluate_property (const struct dynamic_prop *prop, if (!value_optimized_out (val)) { *value = value_as_address (val); - return 1; + rc = 1; } } } @@ -2659,8 +2662,8 @@ dwarf2_evaluate_property (const struct dynamic_prop *prop, case PROP_CONST: *value = prop->data.const_val; - return 1; - + rc = 1; + break; case PROP_ADDR_OFFSET: { struct dwarf2_property_baton *baton @@ -2681,11 +2684,38 @@ dwarf2_evaluate_property (const struct dynamic_prop *prop, val = value_at (baton->offset_info.type, pinfo->addr + baton->offset_info.offset); *value = value_as_address (val); - return 1; + rc = 1; } + break; } - return 0; + if (rc == 1 && is_signed == 1) + { + /* If we have a valid return candidate and it's value is signed, + we have to sign-extend the value because CORE_ADDR on 64bit machine has + 8 bytes but address size of an 32bit application is 4 bytes. */ + struct gdbarch * gdbarch = target_gdbarch (); + const int addr_bit = gdbarch_addr_bit (gdbarch); + const CORE_ADDR neg_mask = ((~0) << (addr_bit - 1)); + + /* Check if signed bit is set and sign-extend values. */ + if (*value & (neg_mask)) + *value |= (neg_mask ); + } + return rc; +} + +int +dwarf2_evaluate_property (const struct dynamic_prop *prop, + struct frame_info *frame, + struct property_addr_info *addr_stack, + CORE_ADDR *value) +{ + return dwarf2_evaluate_property_signed (prop, + frame, + addr_stack, + value, + 0); } /* See dwarf2loc.h. */ diff --git a/gdb/dwarf2loc.h b/gdb/dwarf2loc.h index fa83459..da6b9cd 100644 --- a/gdb/dwarf2loc.h +++ b/gdb/dwarf2loc.h @@ -138,6 +138,12 @@ int dwarf2_evaluate_property (const struct dynamic_prop *prop, struct property_addr_info *addr_stack, CORE_ADDR *value); +int dwarf2_evaluate_property_signed (const struct dynamic_prop *prop, + struct frame_info *frame, + struct property_addr_info *addr_stack, + CORE_ADDR *value, + int is_signed); + /* A helper for the compiler interface that compiles a single dynamic property to C code. |