| # REQUIRES: x86 |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o |
| |
| # RUN: echo "SECTIONS { \ |
| # RUN: .sec1 0x8000 : AT(0x8000) { sec1_start = .; *(.first_sec) sec1_end = .;} \ |
| # RUN: .sec2 0x8800 : AT(0x8080) { sec2_start = .; *(.second_sec) sec2_end = .;} \ |
| # RUN: }" > %t-lma.script |
| # RUN: not ld.lld -o /dev/null -T %t-lma.script %t.o -shared --no-rosegment 2>&1 | FileCheck %s -check-prefix LMA-OVERLAP-ERR |
| # LMA-OVERLAP-ERR: error: section .sec1 load address range overlaps with .sec2 |
| # LMA-OVERLAP-ERR-NEXT: >>> .sec1 range is [0x8000, 0x80FF] |
| # LMA-OVERLAP-ERR-NEXT: >>> .sec2 range is [0x8080, 0x817F] |
| |
| # Check that we create the expected binary with --noinhibit-exec or --no-check-sections: |
| # RUN: ld.lld -o %t.so --script %t-lma.script %t.o -shared --no-rosegment --noinhibit-exec |
| # RUN: ld.lld -o %t.so --script %t-lma.script %t.o -shared --no-rosegment --no-check-sections -fatal-warnings |
| # RUN: ld.lld -o %t.so --script %t-lma.script %t.o -shared --no-rosegment --check-sections --no-check-sections -fatal-warnings |
| |
| # Verify that the .sec2 was indeed placed in a PT_LOAD where the PhysAddr |
| # overlaps with where .sec1 is loaded: |
| # RUN: llvm-readelf --sections -l %t.so | FileCheck %s -check-prefix BAD-LMA |
| # BAD-LMA-LABEL: Section Headers: |
| # BAD-LMA: .sec1 PROGBITS 0000000000008000 002000 000100 00 WA 0 0 1 |
| # BAD-LMA: .sec2 PROGBITS 0000000000008800 002800 000100 00 WA 0 0 1 |
| # BAD-LMA-LABEL: Program Headers: |
| # BAD-LMA-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align |
| # BAD-LMA-NEXT: LOAD 0x001000 0x0000000000000000 0x0000000000000000 0x000100 0x000100 R E 0x1000 |
| # BAD-LMA-NEXT: LOAD 0x001100 0x0000000000000100 0x0000000000000100 0x000070 0x000070 RW 0x1000 |
| # BAD-LMA-NEXT: LOAD 0x002000 0x0000000000008000 0x0000000000008000 0x000100 0x000100 RW 0x1000 |
| # BAD-LMA-LABEL: Section to Segment mapping: |
| # BAD-LMA: 01 .text .dynamic |
| # BAD-LMA: 02 .sec1 |
| |
| # Now try a script where the virtual memory addresses overlap but ensure that the |
| # load addresses don't: |
| # RUN: echo "SECTIONS { \ |
| # RUN: .sec1 0x8000 : AT(0x8000) { sec1_start = .; *(.first_sec) sec1_end = .;} \ |
| # RUN: .sec2 0x8020 : AT(0x8800) { sec2_start = .; *(.second_sec) sec2_end = .;} \ |
| # RUN: }" > %t-vaddr.script |
| # RUN: not ld.lld -o /dev/null --script %t-vaddr.script %t.o -shared 2>&1 | FileCheck %s -check-prefix VADDR-OVERLAP-ERR |
| # VADDR-OVERLAP-ERR: error: section .sec1 virtual address range overlaps with .sec2 |
| # VADDR-OVERLAP-ERR-NEXT: >>> .sec1 range is [0x8000, 0x80FF] |
| # VADDR-OVERLAP-ERR-NEXT: >>> .sec2 range is [0x8020, 0x811F] |
| |
| # Check that the expected binary was created with --noinhibit-exec: |
| # RUN: ld.lld -o %t.so --script %t-vaddr.script %t.o -shared --no-rosegment --noinhibit-exec |
| # RUN: llvm-readelf --sections -l %t.so | FileCheck %s -check-prefix BAD-VADDR |
| # BAD-VADDR-LABEL: Section Headers: |
| # BAD-VADDR: .sec1 PROGBITS 0000000000008000 002000 000100 00 WA 0 0 1 |
| # BAD-VADDR: .sec2 PROGBITS 0000000000008020 003020 000100 00 WA 0 0 1 |
| # BAD-VADDR-LABEL: Program Headers: |
| # BAD-VADDR-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align |
| # BAD-VADDR-NEXT: LOAD 0x001000 0x0000000000000000 0x0000000000000000 0x000100 0x000100 R E 0x1000 |
| # BAD-VADDR-NEXT: LOAD 0x001100 0x0000000000000100 0x0000000000000100 0x000070 0x000070 RW 0x1000 |
| # BAD-VADDR-NEXT: LOAD 0x002000 0x0000000000008000 0x0000000000008000 0x000100 0x000100 RW 0x1000 |
| # BAD-VADDR-LABEL: Section to Segment mapping: |
| # BAD-VADDR: 01 .text .dynamic |
| # BAD-VADDR: 02 .sec1 |
| |
| # Finally check the case where both LMA and vaddr overlap |
| |
| # RUN: echo "SECTIONS { \ |
| # RUN: .sec1 0x8000 : { sec1_start = .; *(.first_sec) sec1_end = .;} \ |
| # RUN: .sec2 0x8040 : { sec2_start = .; *(.second_sec) sec2_end = .;} \ |
| # RUN: }" > %t-both-overlap.script |
| |
| # RUN: not ld.lld -o /dev/null --script %t-both-overlap.script %t.o -shared 2>&1 | FileCheck %s -check-prefix BOTH-OVERLAP-ERR |
| |
| # BOTH-OVERLAP-ERR: error: section .sec1 file range overlaps with .sec2 |
| # BOTH-OVERLAP-ERR-NEXT: >>> .sec1 range is [0x2000, 0x20FF] |
| # BOTH-OVERLAP-ERR-NEXT: >>> .sec2 range is [0x2040, 0x213F] |
| # BOTH-OVERLAP-ERR: error: section .sec1 virtual address range overlaps with .sec2 |
| # BOTH-OVERLAP-ERR-NEXT: >>> .sec1 range is [0x8000, 0x80FF] |
| # BOTH-OVERLAP-ERR-NEXT: >>> .sec2 range is [0x8040, 0x813F] |
| # BOTH-OVERLAP-ERR: error: section .sec1 load address range overlaps with .sec2 |
| # BOTH-OVERLAP-ERR-NEXT: >>> .sec1 range is [0x8000, 0x80FF] |
| # BOTH-OVERLAP-ERR-NEXT: >>> .sec2 range is [0x8040, 0x813F] |
| |
| # RUN: ld.lld -o %t.so --script %t-both-overlap.script %t.o -shared --no-rosegment --noinhibit-exec |
| # Note: In case everything overlaps we create a binary with overlapping file |
| # offsets. ld.bfd seems to place .sec1 to file offset 18000 and .sec2 |
| # at 18100 so that only virtual addr and LMA overlap |
| # However, in order to create such a broken binary the user has to ignore a |
| # fatal error by passing --noinhibit-exec, so this behaviour is fine. |
| |
| # RUN: llvm-objdump -s %t.so | FileCheck %s --check-prefix BROKEN-OUTPUT-FILE |
| # BROKEN-OUTPUT-FILE-LABEL: Contents of section .sec1: |
| # BROKEN-OUTPUT-FILE-NEXT: 8000 01010101 01010101 01010101 01010101 |
| # BROKEN-OUTPUT-FILE-NEXT: 8010 01010101 01010101 01010101 01010101 |
| # BROKEN-OUTPUT-FILE-NEXT: 8020 01010101 01010101 01010101 01010101 |
| # BROKEN-OUTPUT-FILE-NEXT: 8030 01010101 01010101 01010101 01010101 |
| # Starting here the contents of .sec2 overwrites .sec1: |
| # BROKEN-OUTPUT-FILE-NEXT: 8040 02020202 02020202 02020202 02020202 |
| |
| # RUN: llvm-readelf --sections -l %t.so | FileCheck %s -check-prefix BAD-BOTH |
| # BAD-BOTH-LABEL: Section Headers: |
| # BAD-BOTH: .sec1 PROGBITS 0000000000008000 002000 000100 00 WA 0 0 1 |
| # BAD-BOTH: .sec2 PROGBITS 0000000000008040 002040 000100 00 WA 0 0 1 |
| # BAD-BOTH-LABEL: Program Headers: |
| # BAD-BOTH-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align |
| # BAD-BOTH-NEXT: LOAD 0x001000 0x0000000000000000 0x0000000000000000 0x000100 0x000100 R E 0x1000 |
| # BAD-BOTH-NEXT: LOAD 0x001100 0x0000000000000100 0x0000000000000100 0x000070 0x000070 RW 0x1000 |
| # BAD-BOTH-LABEL: Section to Segment mapping: |
| # BAD-BOTH: 01 .text .dynamic |
| |
| .section .first_sec,"aw",@progbits |
| .rept 0x100 |
| .byte 1 |
| .endr |
| |
| .section .second_sec,"aw",@progbits |
| .rept 0x100 |
| .byte 2 |
| .endr |
