acb66b9111
--oformat=binary is rare (used in a few places in FreeBSD, see `stand/i386/mbr/Makefile` `LDFLAGS_BIN`) The result should be identical to a normal output transformed by `objcopy -O binary`. The current implementation ignores addresses and lays out sections by respecting output section alignments. It can fail when an output section address is specified, e.g. `.rodata ALIGN(16) :` (PR33651). Fix PR33651 by respecting LMA. The code is similar to `tools/llvm-objcop/ELF/Object.cpp` BinaryWriter::finalize after D71035 and D79229. Unforunately for an output section without PT_LOAD, we assume its LMA is equal to its VMA. So the result is still incorrect when an output section LMA (`AT(...)`) is specified Also drop `alignTo(off, config->wordsize)`. GNU ld does not round up the file size. Differential Revision: https://reviews.llvm.org/D85086
61 lines
2.2 KiB
ArmAsm
61 lines
2.2 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
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# RUN: ld.lld -o %t.out %t --oformat binary
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# RUN: od -t x1 -v %t.out | FileCheck %s
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# CHECK: 0000000 90 11 22
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# CHECK-NEXT: 0000003
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## Check case when linkerscript is used.
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# RUN: echo "SECTIONS { . = 0x1000; }" > %t.script
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# RUN: ld.lld -o %t2.out --script %t.script %t --oformat binary
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# RUN: od -t x1 -v %t2.out | FileCheck %s
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# RUN: echo "SECTIONS { }" > %t.script
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# RUN: ld.lld -o %t2.out --script %t.script %t --oformat binary
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# RUN: od -t x1 -v %t2.out | FileCheck %s
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## LMA(.text)=0x100, LMA(.mysec)=0x108. The minimum LMA of all non-empty sections is 0x100.
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## We place an output section at its LMA minus 0x100.
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# RUN: echo 'SECTIONS { .text 0x100 : {*(.text)} .mysec ALIGN(8) : {*(.mysec*)} }' > %talign.lds
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# RUN: ld.lld -T %talign.lds %t --oformat binary -o %talign
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# RUN: od -Ax -t x1 %talign | FileCheck %s --check-prefix=ALIGN --ignore-case
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# ALIGN: 000000 90 00 00 00 00 00 00 00 11 22
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# ALIGN-NEXT: 00000a
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## The empty section .data is ignored when computing the file size.
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# RUN: echo 'SECTIONS { .text : {*(.text .mysec*)} .data 0x100 : {keep = .;}}' > %tempty.lds
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# RUN: ld.lld -T %tempty.lds %t --oformat binary -o %tempty
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# RUN: od -t x1 %tempty | FileCheck %s
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## NOBITS sections are ignored as well.
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# RUN: echo 'SECTIONS { .text : {*(.text .mysec*)} .data 0x100 (NOLOAD) : {BYTE(0)}}' > %tnobits.lds
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# RUN: ld.lld -T %tnobits.lds %t --oformat binary -o %tnobits
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# RUN: od -t x1 %tnobits | FileCheck %s
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## FIXME .mysec should be placed at file offset 1.
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## This does not work because for a section without PT_LOAD, we consider LMA = VMA.
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# RUN: echo 'SECTIONS { .text : {*(.text)} .mysec 0x8 : AT(1) {*(.mysec*)} }' > %tlma.lds
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# RUN: ld.lld -T %tlma.lds %t --oformat binary -o %tlma
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# RUN: od -Ax -t x1 %tlma | FileCheck %s --check-prefix=ALIGN --ignore-case
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# RUN: not ld.lld -o /dev/null %t --oformat foo 2>&1 \
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# RUN: | FileCheck %s --check-prefix ERR
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# ERR: unknown --oformat value: foo
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# RUN: ld.lld -o /dev/null %t --oformat elf
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# RUN: ld.lld -o /dev/null %t --oformat elf-foo
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.text
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.align 4
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.globl _start
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_start:
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nop
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.section .mysec.1,"ax"
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.byte 0x11
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.section .mysec.2,"ax"
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.byte 0x22
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