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- From e94589ed36c4a311355efc46ba3f76523c546057 Mon Sep 17 00:00:00 2001
- From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
- Date: Wed, 7 Aug 2019 16:17:16 +0200
- Subject: [PATCH] Add RISC-V endian detection
- 3rdparty/msgpack-c/include/msgpack/predef/other/endian.h (which comes
- from Boost) two ways of detecting the endianess:
- (1) It includes <endian.h> if BOOST_LIB_C_GNU is defined, and then
- use __BYTE_ORDER to decide the endianness.
- (2) Otherwise, if (1) was not possible for some reason, it uses
- architecture defines to decide the endianness.
- (1) works perfectly fine with glibc toolchains, because
- BOOST_LIB_C_GNU is defined, but it doesn't work with musl. Due to
- this, <endian.h> is not included, __BYTE_ORDER is not defined, and
- method (1) does not work, causing build failures on musl toolchains
- that don't have explicit handling by architecture name (method 2).
- So this commit fixes RISC-V musl build by adding support for the
- __riscv architecture define, to determine that the endianness is
- little endian.
- Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
- ---
- 3rdparty/msgpack-c/include/msgpack/predef/other/endian.h | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
- diff --git a/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h b/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h
- index 3c609fa..63a5722 100644
- --- a/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h
- +++ b/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h
- @@ -127,7 +127,8 @@ information and acquired knowledge:
- defined(__AARCH64EL__) || \
- defined(_MIPSEL) || \
- defined(__MIPSEL) || \
- - defined(__MIPSEL__)
- + defined(__MIPSEL__) || \
- + defined(__riscv)
- # undef MSGPACK_ENDIAN_LITTLE_BYTE
- # define MSGPACK_ENDIAN_LITTLE_BYTE MSGPACK_VERSION_NUMBER_AVAILABLE
- # endif
- --
- 2.21.0
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