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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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| alpha | ||
| arm | ||
| bsd | ||
| i386 | ||
| inet | ||
| mips | ||
| powerpc | ||
| sh | ||
| sysv/linux | ||
| x86_64 | ||
| clock_gettime.c | ||
| clock_nanosleep.c | ||
| clock_settime.c | ||
| confstr.h | ||
| get_child_max.c | ||
| getlogin_r.c | ||
| getlogin.c | ||
| getpagesize.c | ||
| grantpt.c | ||
| ifreq.c | ||
| Implies | ||
| make-syscalls.sh | ||
| Makefile | ||
| s-proto-cancel.S | ||
| s-proto.S | ||
| setxid.h | ||
| sockatmark.c | ||
| stime.c | ||
| syscall-template.S | ||
| syscall.S | ||
| syscalls.list | ||
| sysdep.h | ||