147 lines
8.1 KiB
Plaintext
147 lines
8.1 KiB
Plaintext
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## If the offset and/or size fields of the PT_DYNAMIC field become corrupted,
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## we should report a sensible message.
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## Case A: Test case where the size of the PT_DYNAMIC header is too large to fit in the file,
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## but the start is within the file.
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## Case A.1: the section header table is present in the object. Check that we report a warning about the
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## broken PT_DYNAMIC header, check we dump the dynamic table.
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# RUN: yaml2obj %s -DFILESIZE=0x131 -o %t1
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# RUN: llvm-readobj %t1 --dynamic-table 2>&1 | FileCheck -DFILE=%t1 %s --check-prefixes=WARN1,WARN1-LLVM
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# RUN: llvm-readelf %t1 --dynamic-table 2>&1 | FileCheck -DFILE=%t1 %s --check-prefixes=WARN1,WARN1-GNU
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# WARN1: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1000) + file size (0x131) exceeds the size of the file (0x1130)
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# WARN1-LLVM: DynamicSection [ (1 entries)
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# WARN1-LLVM-NEXT: Tag Type Name/Value
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# WARN1-LLVM-NEXT: 0x0000000000000000 NULL 0x0
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# WARN1-LLVM-NEXT: ]
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# WARN1-GNU: Dynamic section at offset 0x1000 contains 1 entries:
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# WARN1-GNU-NEXT: Tag Type Name/Value
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# WARN1-GNU-NEXT: 0x0000000000000000 (NULL) 0x0
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## Case A.2: in this case we drop section headers. The dynamic table is not dumped.
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# RUN: yaml2obj %s -DFILESIZE=0x12 -DNOHEADERS=true -o %t1.noheaders
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# RUN: llvm-readobj %t1.noheaders --dynamic-table 2>&1 | FileCheck -DFILE=%t1.noheaders %s \
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# RUN: --check-prefix=WARN1-NOHEADERS --implicit-check-not="DynamicSection ["
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# RUN: llvm-readelf %t1.noheaders --dynamic-table 2>&1 | FileCheck -DFILE=%t1.noheaders %s \
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# RUN: --check-prefix=WARN1-NOHEADERS --implicit-check-not="Dynamic section"
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# WARN1-NOHEADERS: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1000) + file size (0x12) exceeds the size of the file (0x1011)
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## Case B: Test case where the offset of the PT_DYNAMIC header is too large to be in the file.
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## Case B.1: the section header table is present in the object. Check that we report a warning about the
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## broken PT_DYNAMIC header. Check we also report a warning about broken fields of the SHT_DYNAMIC section.
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# RUN: yaml2obj %s -DOFFSET=0x1131 -o %t2
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# RUN: llvm-readobj %t2 --dynamic-table 2>&1 | FileCheck -DFILE=%t2 %s \
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# RUN: --check-prefix=WARN2 --implicit-check-not=warning:
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# RUN: llvm-readelf %t2 --dynamic-table 2>&1 | FileCheck -DFILE=%t2 %s \
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# RUN: --check-prefix=WARN2 --implicit-check-not=warning:
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# WARN2: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1131) + file size (0x10) exceeds the size of the file (0x1130)
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# WARN2: warning: '[[FILE]]': unable to read the dynamic table from SHT_DYNAMIC section with index 1: offset (0x1131) + size (0x10) is greater than the file size (0x1130)
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# WARN2: warning: '[[FILE]]': no valid dynamic table was found
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## Case B.2: in this case we drop section headers. The dynamic table is not dumped.
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# RUN: yaml2obj %s -DOFFSET=0x1112 -DNOHEADERS=true -o %t2.noheaders
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# RUN: llvm-readobj %t2.noheaders --dynamic-table 2>&1 | FileCheck -DFILE=%t2.noheaders %s \
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# RUN: --check-prefix=WARN2-NOHEADERS --implicit-check-not="DynamicSection ["
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# RUN: llvm-readelf %t2.noheaders --dynamic-table 2>&1 | FileCheck -DFILE=%t2.noheaders %s \
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# RUN: --check-prefix=WARN2-NOHEADERS --implicit-check-not="Dynamic section"
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# WARN2-NOHEADERS: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1112) + file size (0x10) exceeds the size of the file (0x1011)
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## Case C: test we report a warning when the offset + the file size of the PT_DYNAMIC is so large a
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## value that it overflows the platform address size type. Check we also report a warning about
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## broken fields of the SHT_DYNAMIC section.
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# RUN: yaml2obj %s -DOFFSET=0xffffffffffffffff -o %t3
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# RUN: llvm-readobj %t3 --dynamic-table 2>&1 | FileCheck -DFILE=%t3 %s \
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# RUN: --check-prefix=WARN3 --implicit-check-not=warning:
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# RUN: llvm-readelf %t3 --dynamic-table 2>&1 | FileCheck -DFILE=%t3 %s \
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# RUN: --check-prefix=WARN3 --implicit-check-not=warning:
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# WARN3: warning: '[[FILE]]': PT_DYNAMIC segment offset (0xffffffffffffffff) + file size (0x10) exceeds the size of the file (0x1130)
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# WARN3: warning: '[[FILE]]': unable to read the dynamic table from SHT_DYNAMIC section with index 1: offset (0xffffffffffffffff) + size (0x10) is greater than the file size (0x1130)
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# WARN3: warning: '[[FILE]]': no valid dynamic table was found
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# RUN: yaml2obj %s -DNOHEADERS=true -DOFFSET=0xffffffffffffffff -o %t3.noheaders
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# RUN: llvm-readobj %t3.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t3.noheaders %s --check-prefix=WARN3-NOHEADERS
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# RUN: llvm-readelf %t3.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t3.noheaders %s --check-prefix=WARN3-NOHEADERS
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# WARN3-NOHEADERS: warning: '[[FILE]]': PT_DYNAMIC segment offset (0xffffffffffffffff) + file size (0x10) exceeds the size of the file (0x1011)
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# RUN: yaml2obj %s -DFILESIZE=0xffffffffffffffff -o %t4
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# RUN: llvm-readobj %t4 --dynamic-table 2>&1 | FileCheck -DFILE=%t4 %s --check-prefix=WARN4
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# RUN: llvm-readelf %t4 --dynamic-table 2>&1 | FileCheck -DFILE=%t4 %s --check-prefix=WARN4
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# WARN4: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1000) + file size (0xffffffffffffffff) exceeds the size of the file (0x1130)
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# RUN: yaml2obj %s -DNOHEADERS=true -DFILESIZE=0xffffffffffffffff -o %t4.noheaders
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# RUN: llvm-readobj %t4.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t4.noheaders %s --check-prefix=WARN4-NOHEADERS
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# RUN: llvm-readelf %t4.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t4.noheaders %s --check-prefix=WARN4-NOHEADERS
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# WARN4-NOHEADERS: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1000) + file size (0xffffffffffffffff) exceeds the size of the file (0x1011)
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## Case D: the same as "Case C", but for a 32-bit object.
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# RUN: yaml2obj %s -DBITS=32 -DOFFSET=0xffffffff -o %t5
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# RUN: llvm-readobj %t5 --dynamic-table 2>&1 | FileCheck -DFILE=%t5 %s \
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# RUN: --check-prefix=WARN5 --implicit-check-not=warning:
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# RUN: llvm-readelf %t5 --dynamic-table 2>&1 | FileCheck -DFILE=%t5 %s \
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# RUN: --check-prefix=WARN5 --implicit-check-not=warning:
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# WARN5: warning: '[[FILE]]': PT_DYNAMIC segment offset (0xffffffff) + file size (0x8) exceeds the size of the file (0x10c8)
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# WARN5: warning: '[[FILE]]': unable to read the dynamic table from SHT_DYNAMIC section with index 1: offset (0xffffffff) + size (0x8) is greater than the file size (0x10c8)
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# WARN5: warning: '[[FILE]]': no valid dynamic table was found
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# RUN: yaml2obj %s -DNOHEADERS=true -DBITS=32 -DOFFSET=0xffffffff -o %t5.noheaders
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# RUN: llvm-readobj %t5.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t5.noheaders %s --check-prefix=WARN5-NOHEADERS
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# RUN: llvm-readelf %t5.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t5.noheaders %s --check-prefix=WARN5-NOHEADERS
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# WARN5-NOHEADERS: warning: '[[FILE]]': PT_DYNAMIC segment offset (0xffffffff) + file size (0x8) exceeds the size of the file (0x1009)
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# RUN: yaml2obj %s -DBITS=32 -DFILESIZE=0xffffffff -o %t6
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# RUN: llvm-readobj %t6 --dynamic-table 2>&1 | FileCheck -DFILE=%t6 %s --check-prefix=WARN6
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# RUN: llvm-readelf %t6 --dynamic-table 2>&1 | FileCheck -DFILE=%t6 %s --check-prefix=WARN6
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# WARN6: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1000) + file size (0xffffffff) exceeds the size of the file (0x10c8)
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# RUN: yaml2obj %s -DNOHEADERS=true -DBITS=32 -DFILESIZE=0xffffffff -o %t6.noheaders
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# RUN: llvm-readobj %t6.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t6.noheaders %s --check-prefix=WARN6-NOHEADERS
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# RUN: llvm-readelf %t6.noheaders --dynamic-table 2>&1 | \
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# RUN: FileCheck -DFILE=%t6.noheaders %s --check-prefix=WARN6-NOHEADERS
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# WARN6-NOHEADERS: warning: '[[FILE]]': PT_DYNAMIC segment offset (0x1000) + file size (0xffffffff) exceeds the size of the file (0x1009)
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--- !ELF
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FileHeader:
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Class: ELFCLASS[[BITS=64]]
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Address: 0x1000
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Offset: 0x1000
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ShOffset: [[OFFSET=<none>]]
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Entries:
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- Tag: DT_NULL
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Value: 0
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- Type: SectionHeaderTable
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NoHeaders: [[NOHEADERS=false]]
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ProgramHeaders:
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- Type: PT_DYNAMIC
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FileSize: [[FILESIZE=<none>]]
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FirstSec: .dynamic
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LastSec: .dynamic
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