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[3.11] gh-110190: Fix ctypes structs with array on Arm (#112604)#112766
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…112604)Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms.This because on Arm platforms structs with at most 4 elements of anyfloating point type values can be passed through registers. If the typeis double the maximum size of the struct is 32 bytes.On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.(cherry picked from commitbc68f4a)
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestSep 19, 2024
…112604) (python#112766)Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms.This because on Arm platforms structs with at most 4 elements of anyfloating point type values can be passed through registers. If the typeis double the maximum size of the struct is 32 bytes.On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.(cherry picked from commitbc68f4a)Signed-off-by: Michał Górny <mgorny@gentoo.org>
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestSep 19, 2024
…112604) (python#112766)Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms.This because on Arm platforms structs with at most 4 elements of anyfloating point type values can be passed through registers. If the typeis double the maximum size of the struct is 32 bytes.On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.(cherry picked from commitbc68f4a)Signed-off-by: Michał Górny <mgorny@gentoo.org>
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestSep 19, 2024
…112604) (python#112766)Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms.This because on Arm platforms structs with at most 4 elements of anyfloating point type values can be passed through registers. If the typeis double the maximum size of the struct is 32 bytes.On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.(cherry picked from commitbc68f4a)Signed-off-by: Michał Górny <mgorny@gentoo.org>
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestJul 30, 2025
…112604) (python#112766)Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms.This because on Arm platforms structs with at most 4 elements of anyfloating point type values can be passed through registers. If the typeis double the maximum size of the struct is 32 bytes.On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.(cherry picked from commitbc68f4a)Signed-off-by: Michał Górny <mgorny@gentoo.org>
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Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms. This because on Arm platforms structs with at most 4 elements of any floating point type values can be passed through registers. If the type is double the maximum size of the struct is 32 bytes. On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.
(cherry picked from commitbc68f4a)