From: Russ Allbery <rra@stanford.edu>
Date: Mon, 30 Jun 2008 21:50:23 +0000 (+0000)
Subject: linux-ucontext-fixes-20080630
X-Git-Tag: openafs-devel-1_5_61~1011
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=9f94f89a7a894651f18947ec7ac20959f9326478;p=packages%2Fo%2Fopenafs.git

linux-ucontext-fixes-20080630

LICENSE BSD

Use undef in the arch-specific param file to override UCONTEXT rather
than adding a conditional in a generic file, making arm work the same
as 32-bit SPARC.  Disable UCONTEXT on parisc as well; glibc doesn't
provide the ucontext functions on that architecture.
---

diff --git a/src/config/param.arm_linux24.h b/src/config/param.arm_linux24.h
index 03146cda1..d7025a598 100644
--- a/src/config/param.arm_linux24.h
+++ b/src/config/param.arm_linux24.h
@@ -30,4 +30,7 @@
 #define AFSLITTLE_ENDIAN	1
 #define AFS_SYSCALL 		137
 
+/* glibc doesn't implement getcontext/savecontext for arm. */
+#undef USE_UCONTEXT
+
 #endif /* AFS_PARAM_H */
diff --git a/src/config/param.arm_linux26.h b/src/config/param.arm_linux26.h
index 1a0359690..1339fd0fc 100644
--- a/src/config/param.arm_linux26.h
+++ b/src/config/param.arm_linux26.h
@@ -33,4 +33,8 @@
 #ifndef __NR_afs_syscall
 #define __NR_afs_syscall 137
 #endif
+
+/* glibc doesn't implement getcontext/savecontext for arm. */
+#undef USE_UCONTEXT
+
 #endif /* AFS_PARAM_H */
diff --git a/src/config/param.linux26.h b/src/config/param.linux26.h
index 3c0edd2b3..e0d7b0c42 100644
--- a/src/config/param.linux26.h
+++ b/src/config/param.linux26.h
@@ -92,13 +92,11 @@
 
 #endif /* !defined(UKERNEL) */
 
-#ifndef AFS_ARM_LINUX24_ENV
 #ifdef __GLIBC__
 #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 3)
 #define USE_UCONTEXT
 #endif
 #endif
-#endif
 
 #ifndef HAVE_IGET
 #define AFS_CACHE_VNODE_PATH 1
diff --git a/src/config/param.parisc_linux24.h b/src/config/param.parisc_linux24.h
index 0be0bc088..a6bebdf28 100644
--- a/src/config/param.parisc_linux24.h
+++ b/src/config/param.parisc_linux24.h
@@ -30,4 +30,7 @@
 #define AFSBIG_ENDIAN		1
 #define AFS_SYSCALL		137
 
+/* glibc doesn't implement getcontext/savecontext for parisc. */
+#undef USE_UCONTEXT
+
 #endif /* AFS_PARAM_H */