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UML - Don't use glibc asm/user.h

PATCH New Jeff Dike 1 participant 1 message Aug 23, 2007 User-mode Linux (UML)

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Jeff Dike

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PATCH 1/7 UML - Don't use glibc asm/user.h

Stop including asm/user.h from libc - it seems to be disappearing from distros. It's replaced with sys/user.h which defines user_fpregs_struct and user_fpxregs_struct instead of user_i387_struct and struct user_fxsr_struct on i386.

As a bonus, on x86_64, I get to dump some stupid typedefs which were needed in order to get asm/user.h to compile.

Signed-off-by Jeff Dike <[email protected]>

--

 arch/um/sys-i386/user-offsets.c   |    6 +++---
 arch/um/sys-x86_64/user-offsets.c |    9 +--------
 2 files changed, 4 insertions(+), 11 deletions(-)
arch/um/sys-i386/user-offsets.c +3 -3
Index: linux-2.6.22/arch/um/sys-i386/user-offsets.c
===================================================================
@@ -2,9 +2,9 @@
 #include <stddef.h>
 #include <signal.h>
 #include <sys/poll.h>
+#include <sys/user.h>
 #include <sys/mman.h>
 #include <asm/ptrace.h>
-#include <asm/user.h>
 
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))

@@ -48,8 +48,8 @@ void foo(void)
 	OFFSET(HOST_SC_FP_ST, _fpstate, _st);
 	OFFSET(HOST_SC_FXSR_ENV, _fpstate, _fxsr_env);
 
-	DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_i387_struct));
-	DEFINE_LONGS(HOST_XFP_SIZE, sizeof(struct user_fxsr_struct));
+	DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
+	DEFINE_LONGS(HOST_XFP_SIZE, sizeof(struct user_fpxregs_struct));
 
 	DEFINE(HOST_IP, EIP);
 	DEFINE(HOST_SP, UESP);
arch/um/sys-x86_64/user-offsets.c +1 -8
Index: linux-2.6.22/arch/um/sys-x86_64/user-offsets.c
===================================================================
@@ -3,17 +3,10 @@
 #include <signal.h>
 #include <sys/poll.h>
 #include <sys/mman.h>
+#include <sys/user.h>
 #define __FRAME_OFFSETS
 #include <asm/ptrace.h>
 #include <asm/types.h>
-/* For some reason, x86_64 defines u64 and u32 only in <pci/types.h>, which I
- * refuse to include here, even though they're used throughout the headers.
- * These are used in asm/user.h, and that include can't be avoided because of
- * the sizeof(struct user_regs_struct) below.
- */
-typedef __u64 u64;
-typedef __u32 u32;
-#include <asm/user.h>
 
 #define DEFINE(sym, val) \
         asm volatile("\n->" #sym " %0 " #val : : "i" (val))

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