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1# REQUIRES: x86-registered-target2 3# RUN: yaml2obj %s -o %t4 5# RUN: echo -n 11112222 > %t.same6# RUN: echo -n 00000000 > %t.zeros7# RUN: echo -n 11 > %t.short8# RUN: echo -n 11113333 > %t.updated9# RUN: echo -n 111122223 > %t.larger10 11## Update the segment section with a regular chunk of data the same size as the section.12# RUN: llvm-objcopy --update-section=.in_segment=%t.same %t %t.same.o13# RUN: llvm-readobj --section-headers --section-data --program-headers %t.same.o | \14# RUN: FileCheck %s --check-prefix=NORMAL15 16## Show that if we overwrite a given section (.in_segment) with new data, then rewrite it17## back (from the second `--update-section`), then it should be the exact same as the18## original file.19# RUN: llvm-objcopy %t %t.copy.o20# RUN: llvm-objcopy --update-section=.in_segment=%t.same --update-section=.in_segment=%t.zeros %t %t.original.o21# RUN: cmp %t.copy.o %t.original.o22 23## Update segment section with a smaller chunk of data. This will also update the24## section size to the length of the new data written. This does not affect the offset25## of any subsequent sections in the same segment as this.26# RUN: llvm-objcopy --update-section=.in_segment=%t.short %t %t.short.o27# RUN: llvm-readobj --section-headers --section-data --program-headers %t.short.o | \28# RUN: FileCheck %s --check-prefix=SHORT29 30## Ensure the data that was in a shortened section within a segment is still retained.31## For cases where there are gaps in segments not covered by sections, the existing32## contents are preserved.33# RUN: od -t x1 -j 0x78 -N 16 %t.short.o | FileCheck %s --check-prefix=PRESERVED34 35## Add a new section via --add-section, then update it.36# RUN: llvm-objcopy --add-section=.added=%t.zeros --update-section=.added=%t.updated \37# RUN: %t %t.updated.o38# RUN: llvm-readobj --section-headers --section-data --program-headers %t.updated.o | \39# RUN: FileCheck %s --check-prefix=ADD-UPDATE40 41## Adding should always be first regardless of flag order.42# RUN: llvm-objcopy --update-section=.added=%t.updated --add-section=.added=%t.updated \43# RUN: %t %t.updated.o44# RUN: llvm-readobj --section-headers --section-data --program-headers %t.updated.o | \45# RUN: FileCheck %s --check-prefix=ADD-UPDATE46 47## We can't update sections which don't exist.48# RUN: not llvm-objcopy --update-section=.nosection=%t.same %t %t-err1 2>&1 | \49# RUN: FileCheck %s --check-prefix=ERR-NO-SECTION50 51## We can't update certain types of sections.52# RUN: not llvm-objcopy --update-section=.nobits_type=%t.same %t %t-err2 2>&1 | \53# RUN: FileCheck %s --check-prefix=ERR-NOBITS-TYPE54# RUN: not llvm-objcopy --update-section=.null_type=%t.same %t %t-err2 2>&1 | \55# RUN: FileCheck %s --check-prefix=ERR-NULL-TYPE56 57## Fail on trying to insert data larger than the existing section.58# RUN: not llvm-objcopy --update-section=.in_segment=%t.larger %t %t-err3 2>&1 | \59# RUN: FileCheck %s --check-prefix=ERR-LARGER60 61## But we can insert larger data if the section is NOT part of a segment.62# RUN: llvm-objcopy --update-section=.not_in_segment=%t.larger %t %t.larger.o63# RUN: llvm-readobj --section-headers --section-data --program-headers %t.larger.o | \64# RUN: FileCheck %s --check-prefix=LONG65 66## We should still fail on inserting larger data, even if it is superceded by a67## valid --update-section flag.68# RUN: not llvm-objcopy --update-section=.in_segment=%t.larger --update-section=.in_segment=%t.same %t %t-err3 2>&1 | \69# RUN: FileCheck %s --check-prefix=ERR-LARGER70 71## Test option parsing failures.72# RUN: not llvm-objcopy --update-section %t %t.out 2>&1 | FileCheck %s --check-prefix=MISSING-EQ73# RUN: not llvm-objcopy --update-section=.in_segment= %t %t.out 2>&1 | FileCheck %s --check-prefix=MISSING-FILE74 75!ELF76FileHeader:77 Class: ELFCLASS6478 Data: ELFDATA2LSB79 Type: ET_EXEC80 Machine: EM_X86_6481Sections:82 - Name: .in_segment83 Type: SHT_PROGBITS84 Content: "3030303030303030"85 - Name: .unmodified_in_segment86 Type: SHT_PROGBITS87 Content: "3130303030303030"88 - Name: .nobits_type89 Type: SHT_NOBITS90 - Name: .not_in_segment91 Type: SHT_PROGBITS92 - Name: .null_type93 Type: SHT_NULL94ProgramHeaders:95 - Type: PT_LOAD96 VAddr: 0x100097 FirstSec: .in_segment98## The unmodified section is for ensuring that it remains untouched (ie. its99## offset is the same) even when the section before it is shrunk.100 LastSec: .unmodified_in_segment101 102# NORMAL: Name: .in_segment103# NORMAL: Offset:104# NORMAL-SAME: {{ }}0x78{{$}}105# NORMAL: Size:106# NORMAL-SAME: {{ }}8{{$}}107# NORMAL: SectionData (108# NORMAL-NEXT: |11112222|109# NORMAL-NEXT: )110# NORMAL: Name: .unmodified_in_segment111# NORMAL: Offset:112# NORMAL-SAME: {{ }}0x80{{$}}113# NORMAL: Size:114# NORMAL-SAME: {{ }}8{{$}}115# NORMAL: SectionData (116# NORMAL-NEXT: |10000000|117# NORMAL-NEXT: )118# NORMAL: ProgramHeaders [119# NORMAL-NEXT: ProgramHeader {120# NORMAL-NEXT: Type: PT_LOAD (0x1)121# NORMAL: FileSize:122# NORMAL-SAME: {{ }}16{{$}}123# NORMAL: MemSize:124# NORMAL-SAME: {{ }}16{{$}}125# NORMAL: }126# NORMAL-NEXT: ]127 128# SHORT: Name: .in_segment129# SHORT: Offset:130# SHORT-SAME: {{ }}0x78{{$}}131# SHORT: Size:132# SHORT-SAME: {{ }}2{{$}}133# SHORT: SectionData (134# SHORT-NEXT: |11|135# SHORT-NEXT: )136# SHORT: Name: .unmodified_in_segment137# SHORT: Offset:138# SHORT-SAME: {{ }}0x80{{$}}139# SHORT: Size:140# SHORT-SAME: {{ }}8{{$}}141# SHORT: SectionData (142# SHORT-NEXT: |10000000|143# SHORT-NEXT: )144# SHORT: ProgramHeaders [145# SHORT-NEXT: ProgramHeader {146# SHORT-NEXT: Type: PT_LOAD (0x1)147# SHORT: FileSize:148# SHORT-SAME: {{ }}16{{$}}149# SHORT: MemSize:150# SHORT-SAME: {{ }}16{{$}}151# SHORT: }152# SHORT-NEXT: ]153 154## The first 8 bytes are the modified section. The last 8 bytes are the155## unmodified section.156# PRESERVED: 31 31 30 30 30 30 30 30 31 30 30 30 30 30 30 30157 158# LONG: Name: .not_in_segment159# LONG: Size:160# LONG-SAME: {{ }}9{{$}}161# LONG: SectionData (162# LONG-NEXT: |111122223|163# LONT-NEXT: )164 165# ADD-UPDATE: Name: .added166# ADD-UPDATE: Size:167# ADD-UPDATE-SAME: {{ }}8{{$}}168# ADD-UPDATE: SectionData (169# ADD-UPDATE-NEXT: |11113333|170# ADD-UPDATE: )171 172# ERR-NO-SECTION: error: {{.*}}section '.nosection' not found173# ERR-NOBITS-TYPE: error: {{.*}}section '.nobits_type' cannot be updated because it does not have contents174# ERR-NULL-TYPE: error: {{.*}}section '.null_type' cannot be updated because it does not have contents175# ERR-LARGER: error: {{.*}}cannot fit data of size 9 into section '.in_segment' with size 8 that is part of a segment176 177# MISSING-EQ: error: bad format for --update-section: missing '='178# MISSING-FILE: error: bad format for --update-section: missing file name179