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[pread changes deleted, since those seem to be specific to glibc-2.3.2]
Date: Thu, 19 Jun 2003 20:02:07 -0400
From: Daniel Jacobowitz <drow@false.org>
Subject: [linux-sh:02808] Patch needed for CVS glibc on SH
To: linux-sh@m17n.org, libc-alpha@sources.redhat.com
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I believe this flushes my current patches to make glibc work on SH. Issues:
- MIPS pread functions have some wackiness in them for the MIPS calling
conventions, which align long longs to even register pairs; it appears
that SH does not do this. This fixes pread64/pwrite64.
- st_ino is _NOT_ 64-bit in the latest SH kernel trees, or at least it
wasn't when I checked in April. --enable-kernel=2.4.x breaks terribly
without this patch; the errors are along the lines of "version GLIBC_2.3
not found", because that's the first consequence of a messed up inode
field - ld.so compares by inodes at some point.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
2003-06-19 Daniel Jacobowitz <drow@mvista.com>
* sysdeps/unix/sysv/linux/kernel-features.h: Update kernel features
for the SH architecture.
* sysdeps/unix/sysv/linux/sh/pread.c: Use generic Linux version
instead of the MIPS version.
* sysdeps/unix/sysv/linux/sh/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/sh/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/sh/pwrite64.c: Likewise.
--- glibc-2.3.2/sysdeps/unix/sysv/linux/kernel-features.h.org 2003-04-21 10:57:55.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/kernel-features.h 2003-04-21 11:16:47.000000000 -0400
@@ -151,11 +151,20 @@
/* The changed st_ino field appeared in 2.4.0-test6. But we cannot
distinguish this version from other 2.4.0 releases. Therefore play
- save and assume it available is for 2.4.1 and up. */
-#if __LINUX_KERNEL_VERSION >= 132097
+ save and assume it available is for 2.4.1 and up. However, SH is lame,
+ and still does not have a 64-bit inode field. */
+#if __LINUX_KERNEL_VERSION >= 132097 \
+ && !defined __sh__
# define __ASSUME_ST_INO_64_BIT 1
#endif
+/* SH kernels got stat64, mmap2, and truncate64 during 2.4.0-test. */
+#if __LINUX_KERNEL_VERSION >= 132096 && defined __sh__
+# define __ASSUME_TRUNCATE64_SYSCALL 1
+# define __ASSUME_MMAP2_SYSCALL 1
+# define __ASSUME_STAT64_SYSCALL 1
+#endif
+
/* To support locking of large files a new fcntl() syscall was introduced
in 2.4.0-test7. We test for 2.4.1 for the earliest version we know
the syscall is available. */
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