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12c3dca25d
The MaverickCrunch support for ep93xx never made it into glibc and was removed from gcc in its 4.8 release in 2012. It is now one of the last parts of arch/arm/ that fails to build with the clang integrated assembler, which is unlikely to ever want to support it. The two alternatives are to force the use of binutils/gas when building the crunch support, or to remove it entirely. According to Hartley Sweeten: "Martin Guy did a lot of work trying to get the maverick crunch working but I was never able to successfully use it for anything. It "kind" of works but depending on the EP93xx silicon revision there are still a number of hardware bugs that either give imprecise or garbage results. I have no problem with removing the kernel support for the maverick crunch." Unless someone else comes up with a good reason to keep it around, remove it now. This touches mostly the ep93xx platform, but removes a bit of code from ARM common ptrace and signal frame handling as well. If there are remaining users of MaverickCrunch, they can use LTS kernels for at least another five years before kernel support ends. Link: https://lore.kernel.org/linux-arm-kernel/20210802141245.1146772-1-arnd@kernel.org/ Link: https://lore.kernel.org/linux-arm-kernel/20210226164345.3889993-1-arnd@kernel.org/ Link: https://github.com/ClangBuiltLinux/linux/issues/1272 Link: https://gcc.gnu.org/legacy-ml/gcc/2008-03/msg01063.html Cc: "Martin Guy" <martinwguy@martinwguy@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI__ASMARM_HWCAP_H
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#define _UAPI__ASMARM_HWCAP_H
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/*
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* HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
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*/
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#define HWCAP_SWP (1 << 0)
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#define HWCAP_HALF (1 << 1)
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#define HWCAP_THUMB (1 << 2)
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#define HWCAP_26BIT (1 << 3) /* Play it safe */
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#define HWCAP_FAST_MULT (1 << 4)
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#define HWCAP_FPA (1 << 5)
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#define HWCAP_VFP (1 << 6)
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#define HWCAP_EDSP (1 << 7)
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#define HWCAP_JAVA (1 << 8)
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#define HWCAP_IWMMXT (1 << 9)
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#define HWCAP_CRUNCH (1 << 10) /* Obsolete */
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#define HWCAP_THUMBEE (1 << 11)
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#define HWCAP_NEON (1 << 12)
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#define HWCAP_VFPv3 (1 << 13)
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#define HWCAP_VFPv3D16 (1 << 14) /* also set for VFPv4-D16 */
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#define HWCAP_TLS (1 << 15)
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#define HWCAP_VFPv4 (1 << 16)
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#define HWCAP_IDIVA (1 << 17)
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#define HWCAP_IDIVT (1 << 18)
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#define HWCAP_VFPD32 (1 << 19) /* set if VFP has 32 regs (not 16) */
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#define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT)
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#define HWCAP_LPAE (1 << 20)
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#define HWCAP_EVTSTRM (1 << 21)
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/*
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* HWCAP2 flags - for elf_hwcap2 (in kernel) and AT_HWCAP2
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*/
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#define HWCAP2_AES (1 << 0)
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#define HWCAP2_PMULL (1 << 1)
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#define HWCAP2_SHA1 (1 << 2)
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#define HWCAP2_SHA2 (1 << 3)
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#define HWCAP2_CRC32 (1 << 4)
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#endif /* _UAPI__ASMARM_HWCAP_H */
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