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openwrt-packages-dist/libs/boost/patches/020-mips64-fiber.patch

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boost: build context for mips64 It turns out there's upstream support for it. A small patch is needed to fix softfloat support. Also added patch to fix boost-fiber on octeon+. Failure happens because the platform is based on an old MIPSr2 standard that lacks the pause instruction. It also turns out that MIPS64 builds are done with the wrong ABI. Signed-off-by: Rosen Penev <rosenp@gmail.com>
4 years ago
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boost: fixup mips64 fiber patch It turns out that this is also broken on mips64el. Further testing reveals that -mips32r2 -mtune=mips32r2 -mabi=32 compiles the PAUSE instruction just fine whereas -mips64r2 -mtune=mips64r2 -mabi=64 does not. The PAUSE instruction was introduced in version 2.6 of the MIPS ISA and GCC for some reason does not allow usage of it with MIPS64. Modify the macro to fix the situation instead of just matching on octeon, which is not quite correct. Signed-off-by: Rosen Penev <rosenp@gmail.com>
4 years ago
boost: build context for mips64 It turns out there's upstream support for it. A small patch is needed to fix softfloat support. Also added patch to fix boost-fiber on octeon+. Failure happens because the platform is based on an old MIPSr2 standard that lacks the pause instruction. It also turns out that MIPS64 builds are done with the wrong ABI. Signed-off-by: Rosen Penev <rosenp@gmail.com>
4 years ago
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  1. --- a/boost/fiber/detail/cpu_relax.hpp

  2. +++ b/boost/fiber/detail/cpu_relax.hpp

  3. @@ -47,7 +47,7 @@ namespace detail {

  4.  # else
  5.  #  define cpu_relax() asm volatile ("nop" ::: "memory");
  6.  # endif
  7. -#elif BOOST_ARCH_MIPS && (__mips_isa_rev > 1)

  8. +#elif BOOST_ARCH_MIPS && (((__mips_isa_rev > 1) && defined(__mips32)) || ((__mips_isa_rev > 2)  && defined(__mips64)))

  9.  # define cpu_relax() asm volatile ("pause" ::: "memory");
  10.  #elif BOOST_ARCH_PPC
  11.  // http://code.metager.de/source/xref/gnu/glibc/sysdeps/powerpc/sys/platform/ppc.h