# REQUIRES: x86 # RUN: rm -rf %t && split-file %s %t && cd %t # RUN: llvm-mc -filetype=obj -triple=x86_64 a.s -o a.o #--- empty.lds SECTIONS {} # RUN: ld.lld -o empty -T empty.lds a.o # RUN: llvm-objdump --section-headers empty | \ # RUN: FileCheck -check-prefix=SEC-DEFAULT %s #--- 1.lds # SECTIONS command with the same order as default. SECTIONS { .text : { *(.text) } .data : { *(.data) } } # RUN: ld.lld -o 1 -T 1.lds a.o # RUN: llvm-objdump --section-headers 1 | \ # RUN: FileCheck -check-prefix=SEC-DEFAULT %s # Idx Name Size # SEC-DEFAULT: 1 .text 0000000e {{[0-9a-f]*}} TEXT # SEC-DEFAULT: 2 .data 00000020 {{[0-9a-f]*}} DATA # SEC-DEFAULT: 3 other 00000003 {{[0-9a-f]*}} DATA # SEC-DEFAULT: 4 .bss 00000002 {{[0-9a-f]*}} BSS # SEC-DEFAULT: 5 .comment 00000008 {{[0-9a-f]*}} # SEC-DEFAULT: 6 .symtab 00000030 {{[0-9a-f]*}} # SEC-DEFAULT: 7 .shstrtab 0000003b {{[0-9a-f]*}} # SEC-DEFAULT: 8 .strtab 00000008 {{[0-9a-f]*}} # .text and .data have swapped names but proper sizes and types. # RUN: echo "SECTIONS { \ # RUN: .data : { *(.text) } \ # RUN: .text : { *(.data) } }" > t.lds # RUN: ld.lld -o %t4 --script t.lds a.o # RUN: llvm-objdump --section-headers %t4 | \ # RUN: FileCheck -check-prefix=SEC-SWAP-NAMES %s # Idx Name Size # SEC-SWAP-NAMES: 1 .data 0000000e {{[0-9a-f]*}} TEXT # SEC-SWAP-NAMES: 2 .text 00000020 {{[0-9a-f]*}} DATA # SEC-SWAP-NAMES: 3 other 00000003 {{[0-9a-f]*}} DATA # SEC-SWAP-NAMES: 4 .bss 00000002 {{[0-9a-f]*}} BSS # SEC-SWAP-NAMES: 5 .comment 00000008 {{[0-9a-f]*}} # SEC-SWAP-NAMES: 6 .symtab 00000030 {{[0-9a-f]*}} # SEC-SWAP-NAMES: 7 .shstrtab 0000003b {{[0-9a-f]*}} # SEC-SWAP-NAMES: 8 .strtab 00000008 {{[0-9a-f]*}} # Multiple SECTIONS command specifying additional input section descriptions # for the same output section description - input sections are merged into # one output section. # RUN: echo "SECTIONS { \ # RUN: .text : { *(.text) } \ # RUN: .data : { *(.data) } } \ # RUN: SECTIONS { \ # RUN: .data : { *(other) } }" > t.lds # RUN: ld.lld -o %t6 --script t.lds a.o # RUN: llvm-objdump --section-headers %t6 | \ # RUN: FileCheck -check-prefix=SEC-MULTI %s # Idx Name Size # SEC-MULTI: 1 .text 0000000e {{[0-9a-f]*}} TEXT # SEC-MULTI-NEXT: .data 00000020 {{[0-9a-f]*}} DATA # SEC-MULTI-NEXT: .data 00000003 {{[0-9a-f]*}} DATA # SEC-MULTI-NEXT: .bss 00000002 {{[0-9a-f]*}} BSS # SEC-MULTI-NEXT: .comment 00000008 {{[0-9a-f]*}} # SEC-MULTI-NEXT: .symtab 00000030 {{[0-9a-f]*}} # SEC-MULTI-NEXT: .shstrtab 00000035 {{[0-9a-f]*}} # SEC-MULTI-NEXT: .strtab 00000008 {{[0-9a-f]*}} ## other is placed in a PT_LOAD segment even if it is preceded by a non-alloc section. ## The current implementation places .data, .bss, .comment and other in the same PT_LOAD. # RUN: echo 'SECTIONS { \ # RUN: .text : { *(.text) } \ # RUN: .data : { *(.data) } \ # RUN: .comment : { *(.comment) } \ # RUN: other : { *(other) } }' > %t5.lds # RUN: ld.lld -o %t5 -T %t5.lds a.o # RUN: llvm-readelf -S -l %t5 | FileCheck --check-prefix=SEP-BY-NONALLOC %s # SEP-BY-NONALLOC: [Nr] Name Type Address Off Size ES Flg # SEP-BY-NONALLOC: [ 1] .text PROGBITS 0000000000000000 001000 00000e 00 AX # SEP-BY-NONALLOC-NEXT: [ 2] .data PROGBITS 000000000000000e 00100e 000020 00 WA # SEP-BY-NONALLOC-NEXT: [ 3] .comment PROGBITS 0000000000000000 001031 000008 01 MS # SEP-BY-NONALLOC: [ 4] other PROGBITS 000000000000002e 00102e 000003 00 WA # SEP-BY-NONALLOC-NEXT: [ 5] .bss NOBITS 0000000000000031 001031 000002 00 WA # SEP-BY-NONALLOC: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align # SEP-BY-NONALLOC-NEXT: LOAD 0x001000 0x0000000000000000 0x0000000000000000 0x00000e 0x00000e R E 0x1000 # SEP-BY-NONALLOC-NEXT: LOAD 0x00100e 0x000000000000000e 0x000000000000000e 0x000023 0x000025 RW 0x1000 # SEP-BY-NONALLOC-NEXT: GNU_STACK 0x000000 0x0000000000000000 0x0000000000000000 0x000000 0x000000 RW 0 #--- semi.lds # Input section pattern contains additional semicolon. # Case found in linux kernel script. Check we are able to parse it. SECTIONS { .text : { ;;*(.text);;S = 0;; } } # RUN: ld.lld -T semi.lds a.o #--- unclosed.lds SECTIONS { .text : { *(.text) } # RUN: not ld.lld -T unclosed.lds a.o 2>&1 | FileCheck --check-prefix=UNCLOSED %s # UNCLOSED:error: unclosed.lds:2: unexpected EOF # UNCLOSED-NOT:{{.}} #--- unclosed-out.lds SECTIONS { .text : { *(.text) #--- a.s .globl _start _start: mov $60, %rax mov $42, %rdi .section .data,"aw" .quad 10, 10, 20, 20 .section other,"aw" .short 10 .byte 20 .section .bss,"",@nobits .short 0