AT_HWCAP[2] bits are missing #83

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opened 6 years ago by wschmidt-ibm · 1 comments
wschmidt-ibm commented 6 years ago (Migrated from github.com)

Thanks to Tulio Machado for pointing these out:

  • AT_HWCAP is missing a reserved bit [1]:
    /* Reserved by the kernel. 0x00000004 Do not use. */

  • AT_HWCAP2 is missing the following bits [1]:
    #define PPC_FEATURE2_DARN 0x00200000 /* darn instruction. /
    #define PPC_FEATURE2_SCV 0x00100000 /
    scv syscall. /
    #define PPC_FEATURE2_HTM_NO_SUSPEND 0x00080000 /
    TM without suspended state. */

[1] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/powerpc/bits/hwcap.h;h=b35f5eddc1d309bb68aef6cb132b8262d973324a;hb=HEAD

Thanks to Tulio Machado for pointing these out: - AT_HWCAP is missing a reserved bit [1]: /* Reserved by the kernel. 0x00000004 Do not use. */ - AT_HWCAP2 is missing the following bits [1]: #define PPC_FEATURE2_DARN 0x00200000 /* darn instruction. */ #define PPC_FEATURE2_SCV 0x00100000 /* scv syscall. */ #define PPC_FEATURE2_HTM_NO_SUSPEND 0x00080000 /* TM without suspended state. */ [1] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/powerpc/bits/hwcap.h;h=b35f5eddc1d309bb68aef6cb132b8262d973324a;hb=HEAD
wschmidt-ibm commented 6 years ago (Migrated from github.com)

Fixed upstream in the last round of ABI commits.

Fixed upstream in the last round of ABI commits.
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Reference: systemsoftware/ELFv2-ABI#83
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