6ed8e20143
Follow-up for D74286. Notations: * alignExpr: the computed ALIGN value * max_input_align: the maximum of input section alignments This patch changes the following two cases to match GNU ld: * When ALIGN is present, GNU ld sets output sh_addr to alignExpr, while lld use max(alignExpr, max_input_align) * When addrExpr is specified but alignExpr is not, GNU ld sets output sh_addr to addrExpr, while lld uses `advance(0, max_input_align)` Note, sh_addralign is still set to max(alignExpr, max_input_align). lma-align.test is enhanced a bit to check we don't overalign sh_addr. fixSectionAlignments() sets addrExpr but not alignExpr for the `!hasSectionsCommand` case. This patch sets alignExpr as well so that max_input_align will be respected. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D74736
111 lines
2.4 KiB
ArmAsm
111 lines
2.4 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: echo "SECTIONS { \
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# RUN: .aaa 0x2000 : { *(.aaa) } \
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# RUN: .bbb 0x1 ? 0x3000 : 0x4000 : { *(.bbb) } \
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# RUN: .ccc ALIGN(CONSTANT(MAXPAGESIZE)) + (. & (CONSTANT(MAXPAGESIZE) - 1)) : { *(.ccc) } \
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# RUN: .ddd 0x5001 : { *(.ddd) } \
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# RUN: }" > %t.script
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# RUN: ld.lld %t --script %t.script -o %tout
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# RUN: llvm-readobj -S %tout | FileCheck %s
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## Check:
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## 1) Simple constant as address.
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## 2) That something that contains ":" character, like ternary
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## operator works as expression.
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## 3) That complex expressions work.
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## 4) That section alignment still applied to explicitly specified address.
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#CHECK:Sections [
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#CHECK: Section {
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#CHECK: Index: 0
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#CHECK: Name:
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#CHECK: Type: SHT_NULL
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#CHECK: Flags [
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#CHECK: ]
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#CHECK: Address: 0x0
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#CHECK: Offset: 0x0
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#CHECK: Size: 0
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#CHECK: Link: 0
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#CHECK: Info: 0
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#CHECK: AddressAlignment: 0
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#CHECK: EntrySize: 0
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#CHECK: }
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#CHECK: Section {
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#CHECK: Index: 1
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#CHECK: Name: .aaa
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#CHECK: Type: SHT_PROGBITS
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#CHECK: Flags [
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#CHECK: SHF_ALLOC
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#CHECK: ]
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#CHECK: Address: 0x2000
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#CHECK: Offset: 0x1000
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#CHECK: Size: 8
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#CHECK: Link: 0
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#CHECK: Info: 0
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#CHECK: AddressAlignment: 1
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#CHECK: EntrySize: 0
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#CHECK: }
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#CHECK: Section {
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#CHECK: Index: 2
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#CHECK: Name: .bbb
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#CHECK: Type: SHT_PROGBITS
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#CHECK: Flags [
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#CHECK: SHF_ALLOC
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#CHECK: ]
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#CHECK: Address: 0x3000
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#CHECK: Offset: 0x2000
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#CHECK: Size: 8
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#CHECK: Link: 0
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#CHECK: Info: 0
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#CHECK: AddressAlignment: 1
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#CHECK: EntrySize: 0
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#CHECK: }
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#CHECK: Section {
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#CHECK: Index: 3
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#CHECK: Name: .ccc
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#CHECK: Type: SHT_PROGBITS
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#CHECK: Flags [
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#CHECK: SHF_ALLOC
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#CHECK: ]
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#CHECK: Address: 0x4008
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#CHECK: Offset: 0x3008
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#CHECK: Size: 8
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#CHECK: Link: 0
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#CHECK: Info: 0
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#CHECK: AddressAlignment: 1
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#CHECK: EntrySize: 0
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#CHECK: }
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#CHECK: Section {
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#CHECK: Index: 4
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#CHECK: Name: .ddd
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#CHECK: Type: SHT_PROGBITS
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#CHECK: Flags [
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#CHECK: SHF_ALLOC
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#CHECK: ]
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#CHECK: Address: 0x5001
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#CHECK: Offset: 0x4001
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#CHECK: Size: 23
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#CHECK: Link: 0
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#CHECK: Info: 0
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#CHECK: AddressAlignment: 16
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#CHECK: EntrySize: 0
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#CHECK: }
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.globl _start
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_start:
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nop
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.section .aaa, "a"
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.quad 0
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.section .bbb, "a"
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.quad 0
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.section .ccc, "a"
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.quad 0
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.section .ddd, "a"
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.align 16
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.quad 0
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