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b4cb6cac78
When it happens that the .gnu.version_r stores the strings in .dynstr it can come to corruption of the library names written into DT_NEEDED: -the library names in DT_NEEDED are replaced, new entries are written to the end of .dynstr -the version library names are replaced, and written to the end of the string section. If the section for the version strings is also ".dynstr", the previous modifications were _not_ taken into account and things were written from the old end of .dynstr again. The order in which these strings were written is not the same as the previous replacement, so things would end up with the same size, but different offsets. The .gnu.version_r table is correct, the file contents are fine, but the offsets in the DT_NEEDED entries are wrong. Since they are printed as 0-terminated strings the first one replaced will always be shown correct, which also is the case if the argument is only used once as the string is replaced with itself afterwards.
22 lines
816 B
Bash
Executable File
22 lines
816 B
Bash
Executable File
#! /bin/sh -e
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SCRATCH=scratch/$(basename $0 .sh)
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rm -rf ${SCRATCH}
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mkdir -p ${SCRATCH}
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oldNeeded=$(../src/patchelf --print-needed big-dynstr)
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oldLibc=$(../src/patchelf --print-needed big-dynstr | grep -v 'foo\.so')
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../src/patchelf --output ${SCRATCH}/big-needed --replace-needed ${oldLibc} long_long_very_long_libc.so.6 --replace-needed libfoo.so lf.so big-dynstr
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if [ -z "$(../src/patchelf --print-needed ${SCRATCH}/big-needed | grep -Fx "long_long_very_long_libc.so.6")" ]; then
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echo "library long_long_very_long_libc.so.6 not found as NEEDED"
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../src/patchelf --print-needed ${SCRATCH}/big-needed
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exit 1
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fi
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if [ -z "$(../src/patchelf --print-needed ${SCRATCH}/big-needed | grep -Fx "lf.so")" ]; then
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echo "library lf.so not found as NEEDED"
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../src/patchelf --print-needed ${SCRATCH}/big-needed
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exit 1
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fi
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