[EXT_EP-7705] DWARF does not correctly represent variables stored in register pairs Created: 01/Jul/02 Updated: 28/Jun/22 |
|
| Status: | New |
| Project: | Embedded Software & Tools |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Low |
| Reporter: | TI User | Assignee: | TI User |
| Resolution: | Unresolved | Votes: | 0 |
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Product: | Code Generation Tools |
| Internal ID: | CODEGEN-63 |
| OldID: | SDSCM00008685 |
| Found In Release: | C2000_16.9.0.LTS MSP430_21.6.0.LTS C6000_8.1.0B1 C6000_7.4.0B1 ARM_5.2.0B1 MSP430_16.9.0.LTS ARM_15.12.0.LTS C6000_8.2.0 C2000_18.1.0.LTS C2000_6.4.0B1 C6000_8.3.0 MSP430_20.2.0.LTS ARM_18.12.0.LTS C2000_21.6.0.LTS MSP430_15.12.0.LTS ARM_20.2.0.LTS C2000_20.2.0.LTS ARM_18.1.0.LTS MSP430_18.1.0.LTS ARM_16.9.0.LTS C2000_22.6.0.LTS C2000_15.12.0.LTS MSP430_4.4.0B1 MSP430_18.12.0.LTS C2000_18.12.0.LTS |
| Workaround: | Although 'var1' and 'var2' are shown to be in single registers, a debugger could determine that they are actually stored in register pairs by looking at the type of the variables: [00000113] DW_TAG_base_type DW_AT_name long long DW_AT_encoding 0x5 DW_AT_byte_size 0x8 The base type indicates that the size of the variables is 0x8 bytes. Since a single register can only store 0x4 bytes of information, it would take two registers to hold this values. On TI architectures, values stored in multiple registers are always stored in consecutive registers. Thus, the debugger would know that if the entire value could not fit in A4, the rest of the value must be in A5. A5 would contain the upper 32 bits of the value. |
| Description |
|
DWARF does not correctly represent variables stored in register pairs |