| # Test handing of the dwarf val_offset() rule which can be used to reconstruct |
| # the value of a register that is neither in a live register or saved on the |
| # stack but is computable with CFA + offset. |
| |
| # UNSUPPORTED: system-windows, ld_new-bug |
| # REQUIRES: target-x86_64, native |
| |
| # RUN: %clang_host %p/Inputs/call-asm.c %p/Inputs/eh-frame-dwarf-unwind-val-offset.s -o %t |
| # RUN: %lldb %t -s %s -o exit | FileCheck %s |
| |
| breakpoint set -n asm_main |
| # CHECK: Breakpoint 1: where = {{.*}}`asm_main |
| |
| breakpoint set -n bar |
| # CHECK: Breakpoint 2: where = {{.*}}`bar |
| |
| process launch |
| # CHECK: stop reason = breakpoint 1.1 |
| |
| stepi |
| stepi |
| stepi |
| register read -G x r12 |
| # CHECK: r12 = 0x[[#%.16x,R12:]]{{$}} |
| |
| continue |
| # CHECK: stop reason = breakpoint 2.1 |
| |
| thread backtrace |
| # CHECK: frame #0: {{.*}}`bar |
| # CHECK: frame #1: {{.*}}`foo + 12 |
| # CHECK: frame #2: {{.*}}`asm_main + 29 |
| |
| target modules show-unwind -n bar |
| # CHECK: eh_frame UnwindPlan: |
| # CHECK: row[0]: 0: CFA=rsp +8 => rip=[CFA-8] |
| |
| target modules show-unwind -n foo |
| # CHECK: eh_frame UnwindPlan: |
| # CHECK: row[0]: 0: CFA=rsp +8 => r12=CFA+32 rip=DW_OP_lit8, DW_OP_minus, DW_OP_deref, DW_OP_const1u 0x47, DW_OP_minus |
| |
| target modules show-unwind -n asm_main |
| # CHECK: eh_frame UnwindPlan: |
| # CHECK: row[0]: 0: CFA=rsp +8 => rip=[CFA-8] |
| # CHECK: row[1]: 1: CFA=rsp+16 => rbp=[CFA-16] rip=[CFA-8] |
| # CHECK: row[2]: 11: CFA=rbp+16 => rbp=[CFA-16] rip=[CFA-8] |
| # CHECK: row[3]: 30: CFA=rsp +8 => rbp=[CFA-16] rip=[CFA-8] |
| |
| register read -G x r12 |
| # CHECK: r12 = 0x0000000000000456 |
| |
| frame select 1 |
| register read -G x r12 |
| # CHECK: r12 = 0x0000000000000456 |
| |
| frame select 2 |
| register read -G x r12 |
| # CHECK: r12 = 0x[[#R12 + 32]] |
