Commit - source-git/glibc - 6800f76036157a8292ce179f7bed1fc2b2fbd7c0

    x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397]
    
    Since legacy bitmap doesn't cover jitted code generated by legacy JIT
    engine, it isn't very useful.  This patch removes ARCH_CET_LEGACY_BITMAP
    and treats indirect branch tracking similar to shadow stack by removing
    legacy bitmap support.
    
    Tested on CET Linux/x86-64 and non-CET Linux/x86-64.
    
    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
    
    (cherry picked from commit 1fabdb99084df004f7f4cdc7068d1be209a258be)

sysdeps/unix/sysv/linux/x86/dl-cet.h

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+0 -21

sysdeps/unix/sysv/linux/x86/include/asm/prctl.h

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+0 -5

sysdeps/x86/Makefile

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+6 -3

sysdeps/x86/dl-cet.c

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+60 -157

sysdeps/x86/dl-procruntime.c

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+0 -11

sysdeps/x86/tst-cet-legacy-4.c

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+9 -10

sysdeps/x86/tst-cet-legacy-5.c

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+2 -1

sysdeps/x86/tst-cet-legacy-6.c

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+2 -1

sysdeps/x86/tst-cet-legacy-7.c

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+38

sysdeps/x86/tst-cet-legacy-8.c

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+48

hjl / source-git / glibc

Source Code

6800f7 x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397]

Authored and Committed by hjl 3 years ago

`6800f7` x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397]