mmap() declaration wrong for 32-bit targets with 64-bit off_t

[oleavr]

Description

When compiling a 32-bit target with -D_FILE_OFFSET_BITS=64 this
results in the NDK's mmap() prototype not matching Bionic's, which
means the caller pushes a 64-bit value on the stack, whilst the callee
expects a 32-bit value there. This in turn means mmap() likely sees
a bogus offset argument and returns MAP_FAILED.

Environment Details

• NDK Version: 15.1.4119039
• Build system: Meson
• Host OS: Mac
• Compiler: Clang
• ABI: armeabi-v7a
• NDK API level: 14
• Device API level: 24

[oleavr]

Looks like another case of #459. /cc @DanAlbert

[enh]

actually #449 is a closer match. fixed in r15c. in the meantime, you should probably turn off _FILE_OFFSET_BITS if you're targeting API 14.

[oleavr]

Oops, missed that one – sorry about the dupe!