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[pread changes deleted, since those seem to be specific to glibc-2.3.2]
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Date: Thu, 19 Jun 2003 20:02:07 -0400
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From: Daniel Jacobowitz <drow@false.org>
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Subject: [linux-sh:02808] Patch needed for CVS glibc on SH
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To: linux-sh@m17n.org, libc-alpha@sources.redhat.com
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Message-Id: <20030620000207.GA19907@nevyn.them.org>
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List-Id: linux-sh.m17n.org
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I believe this flushes my current patches to make glibc work on SH. Issues:
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- MIPS pread functions have some wackiness in them for the MIPS calling
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conventions, which align long longs to even register pairs; it appears
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that SH does not do this. This fixes pread64/pwrite64.
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- st_ino is _NOT_ 64-bit in the latest SH kernel trees, or at least it
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wasn't when I checked in April. --enable-kernel=2.4.x breaks terribly
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without this patch; the errors are along the lines of "version GLIBC_2.3
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not found", because that's the first consequence of a messed up inode
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field - ld.so compares by inodes at some point.
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--
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Daniel Jacobowitz
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MontaVista Software Debian GNU/Linux Developer
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2003-06-19 Daniel Jacobowitz <drow@mvista.com>
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* sysdeps/unix/sysv/linux/kernel-features.h: Update kernel features
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for the SH architecture.
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* sysdeps/unix/sysv/linux/sh/pread.c: Use generic Linux version
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instead of the MIPS version.
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* sysdeps/unix/sysv/linux/sh/pread64.c: Likewise.
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* sysdeps/unix/sysv/linux/sh/pwrite.c: Likewise.
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* sysdeps/unix/sysv/linux/sh/pwrite64.c: Likewise.
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--- glibc-2.3.2/sysdeps/unix/sysv/linux/kernel-features.h.org 2003-04-21 10:57:55.000000000 -0400
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+++ glibc-2.3.2/sysdeps/unix/sysv/linux/kernel-features.h 2003-04-21 11:16:47.000000000 -0400
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@@ -151,11 +151,20 @@
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/* The changed st_ino field appeared in 2.4.0-test6. But we cannot
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distinguish this version from other 2.4.0 releases. Therefore play
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- save and assume it available is for 2.4.1 and up. */
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-#if __LINUX_KERNEL_VERSION >= 132097
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+ save and assume it available is for 2.4.1 and up. However, SH is lame,
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+ and still does not have a 64-bit inode field. */
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+#if __LINUX_KERNEL_VERSION >= 132097 \
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+ && !defined __sh__
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# define __ASSUME_ST_INO_64_BIT 1
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#endif
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+/* SH kernels got stat64, mmap2, and truncate64 during 2.4.0-test. */
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+#if __LINUX_KERNEL_VERSION >= 132096 && defined __sh__
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+# define __ASSUME_TRUNCATE64_SYSCALL 1
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+# define __ASSUME_MMAP2_SYSCALL 1
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+# define __ASSUME_STAT64_SYSCALL 1
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+#endif
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+
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/* To support locking of large files a new fcntl() syscall was introduced
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in 2.4.0-test7. We test for 2.4.1 for the earliest version we know
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the syscall is available. */
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