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authorChris Metcalf <cmetcalf@tilera.com>2011-05-09 13:12:30 -0400
committerChris Metcalf <cmetcalf@tilera.com>2011-05-12 15:51:36 -0400
commitbe84cb43833ee40a42e08f5425d20310f16229c7 (patch)
tree0d5ddbaac88aa99ab5dbd0925ec525d399405fd5 /arch/tile/kernel/compat.c
parentd2e48c1d4184a0baa4bf09920b63661e0b860b8c (diff)
downloadlinux-stericsson-be84cb43833ee40a42e08f5425d20310f16229c7.tar.gz
compat: fixes to allow working with tile arch
The existing <asm-generic/unistd.h> mechanism doesn't really provide enough to create the 64-bit "compat" ABI properly in a generic way, since the compat ABI is a mix of things were you can re-use the 64-bit versions of syscalls and things where you need a compat wrapper. To provide this in the most direct way possible, I added two new macros to go along with the existing __SYSCALL and __SC_3264 macros: __SC_COMP and SC_COMP_3264. These macros take an additional argument, typically a "compat_sys_xxx" function, which is passed to __SYSCALL if you define __SYSCALL_COMPAT when including the header, resulting in a pointer to the compat function being placed in the generated syscall table. The change also adds some missing definitions to <linux/compat.h> so that it actually has declarations for all the compat syscalls, since the "[nr] = ##call" approach requires proper C declarations for all the functions included in the syscall table. Finally, compat.c defines compat_sys_sigpending() and compat_sys_sigprocmask() even if the underlying architecture doesn't request it, which tries to pull in undefined compat_old_sigset_t defines. We need to guard those compat syscall definitions with appropriate __ARCH_WANT_SYS_xxx ifdefs. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/compat.c')
-rw-r--r--arch/tile/kernel/compat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c
index dbc213adf5e1..e35a3975ca3b 100644
--- a/arch/tile/kernel/compat.c
+++ b/arch/tile/kernel/compat.c
@@ -135,7 +135,7 @@ long tile_compat_sys_msgrcv(int msqid,
/* Provide the compat syscall number to call mapping. */
#undef __SYSCALL
-#define __SYSCALL(nr, call) [nr] = (compat_##call),
+#define __SYSCALL(nr, call) [nr] = (call),
/* The generic versions of these don't work for Tile. */
#define compat_sys_msgrcv tile_compat_sys_msgrcv