mirror of git://sourceware.org/git/glibc.git
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. |
||
|---|---|---|
| .. | ||
| fpu | ||
| mips16 | ||
| nofpu | ||
| Versions | ||
| accept4.c | ||
| c++-types.data | ||
| fcntl.c | ||
| ftruncate64.c | ||
| fxstatat.c | ||
| ld.abilist | ||
| libBrokenLocale.abilist | ||
| libanl.abilist | ||
| libcidn.abilist | ||
| libcrypt.abilist | ||
| libdl.abilist | ||
| libm.abilist | ||
| libnsl.abilist | ||
| libnss_compat.abilist | ||
| libnss_db.abilist | ||
| libnss_dns.abilist | ||
| libnss_files.abilist | ||
| libnss_hesiod.abilist | ||
| libnss_nis.abilist | ||
| libnss_nisplus.abilist | ||
| libpthread.abilist | ||
| libresolv.abilist | ||
| librt.abilist | ||
| libthread_db.abilist | ||
| libutil.abilist | ||
| lockf64.c | ||
| mmap.c | ||
| posix_fadvise.c | ||
| posix_fadvise64.c | ||
| readahead.c | ||
| recvmmsg.c | ||
| sendmmsg.c | ||
| sync_file_range.c | ||
| syscalls.list | ||
| sysdep.h | ||
| truncate64.c | ||