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5163b4b76f
The handling of negative offsets in MIPS mmap is inconsistent with other architectures, as shown by failure of the test posix/tst-mmap-offset for o32 and n32. The MIPS mmap syscall uses a signed argument and does a signed arithmetic shift on it, whereas the glibc semantics expected by that test are for the offset to be considered as a large positive offset. This patch makes MIPS consistent with other architectures as far as possible by using the mmap2 syscall on o32 (#including the generic implementation), and making mmap not an alias for mmap64 for n32, with a custom implementation for n32 that zero-extends the offset argument to 64-bit before calling the mmap syscall. Tested for MIPS64 (o32, n32, n64). [BZ #19550] * sysdeps/unix/sysv/linux/mips/mips32/mmap.c: New file. * sysdeps/unix/sysv/linux/mips/mips64/mmap64.c: Move to .... * sysdeps/unix/sysv/linux/mips/mips64/n64/mmap64.c: ... here. * sysdeps/unix/sysv/linux/mips/mips64/n32/mmap.c: New file. * sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list (mmap64): New syscall entry. * sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list (mmap): New syscall entry. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (mmap): Remove syscall entry. |
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| .. | ||
| n32 | ||
| n64 | ||
| configure | ||
| configure.ac | ||
| ftruncate64.c | ||
| fxstat64.c | ||
| fxstatat64.c | ||
| ldconfig.h | ||
| ldd-rewrite.sed | ||
| libanl.abilist | ||
| libBrokenLocale.abilist | ||
| libcrypt.abilist | ||
| libdl.abilist | ||
| libm.abilist | ||
| libnsl.abilist | ||
| libpthread.abilist | ||
| librt.abilist | ||
| libthread_db.abilist | ||
| libutil.abilist | ||
| llseek.c | ||
| lxstat64.c | ||
| Makefile | ||
| msgctl.c | ||
| recv.c | ||
| semctl.c | ||
| send.c | ||
| shmctl.c | ||
| syscall.S | ||
| syscalls.list | ||
| sysdep-cancel.h | ||
| truncate64.c | ||
| umount.c | ||
| xstat64.c | ||