fdatasync(int) declare is found in bionic/libc/include/unistd.h, but it is not actually implemented in libc. I can NOT find the fdatasync symbol in /system/lib/libc.so.
I got the same problem. fdatasync() is declared. Where is its implementation?
I use fsync instead to pass through the build.
You're right. I found the sample code from Google.File ./external/sqlite/dist/sqlite3.c has the snippet:/* ** Use the fdatasync() API only if the HAVE_FDATASYNC macro is defined. ** Otherwise use fsync() in its place. */ #ifndef HAVE_FDATASYNC # define fdatasync fsync #endif Reading ./bionic/libc/include/sys/linux-unistd.h (generated by Google as you mentioned), I found only fsync() was implemented.
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