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Diffstat (limited to 'xen/arch/arm/arm32/asm-offsets.c')
-rw-r--r--xen/arch/arm/arm32/asm-offsets.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/xen/arch/arm/arm32/asm-offsets.c b/xen/arch/arm/arm32/asm-offsets.c
new file mode 100644
index 0000000000..cc1a72a659
--- /dev/null
+++ b/xen/arch/arm/arm32/asm-offsets.c
@@ -0,0 +1,80 @@
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed
+ * to extract and format the required data.
+ */
+#define COMPILE_OFFSETS
+
+#include <xen/config.h>
+#include <xen/types.h>
+#include <xen/sched.h>
+#include <public/xen.h>
+#include <asm/current.h>
+
+#define DEFINE(_sym, _val) \
+ __asm__ __volatile__ ( "\n->" #_sym " %0 " #_val : : "i" (_val) )
+#define BLANK() \
+ __asm__ __volatile__ ( "\n->" : : )
+#define OFFSET(_sym, _str, _mem) \
+ DEFINE(_sym, offsetof(_str, _mem));
+
+/* base-2 logarithm */
+#define __L2(_x) (((_x) & 0x00000002) ? 1 : 0)
+#define __L4(_x) (((_x) & 0x0000000c) ? ( 2 + __L2( (_x)>> 2)) : __L2( _x))
+#define __L8(_x) (((_x) & 0x000000f0) ? ( 4 + __L4( (_x)>> 4)) : __L4( _x))
+#define __L16(_x) (((_x) & 0x0000ff00) ? ( 8 + __L8( (_x)>> 8)) : __L8( _x))
+#define LOG_2(_x) (((_x) & 0xffff0000) ? (16 + __L16((_x)>>16)) : __L16(_x))
+
+void __dummy__(void)
+{
+ OFFSET(UREGS_sp, struct cpu_user_regs, sp);
+ OFFSET(UREGS_lr, struct cpu_user_regs, lr);
+ OFFSET(UREGS_pc, struct cpu_user_regs, pc);
+ OFFSET(UREGS_cpsr, struct cpu_user_regs, cpsr);
+
+ OFFSET(UREGS_LR_usr, struct cpu_user_regs, lr_usr);
+ OFFSET(UREGS_SP_usr, struct cpu_user_regs, sp_usr);
+
+ OFFSET(UREGS_SP_svc, struct cpu_user_regs, sp_svc);
+ OFFSET(UREGS_LR_svc, struct cpu_user_regs, lr_svc);
+ OFFSET(UREGS_SPSR_svc, struct cpu_user_regs, spsr_svc);
+
+ OFFSET(UREGS_SP_abt, struct cpu_user_regs, sp_abt);
+ OFFSET(UREGS_LR_abt, struct cpu_user_regs, lr_abt);
+ OFFSET(UREGS_SPSR_abt, struct cpu_user_regs, spsr_abt);
+
+ OFFSET(UREGS_SP_und, struct cpu_user_regs, sp_und);
+ OFFSET(UREGS_LR_und, struct cpu_user_regs, lr_und);
+ OFFSET(UREGS_SPSR_und, struct cpu_user_regs, spsr_und);
+
+ OFFSET(UREGS_SP_irq, struct cpu_user_regs, sp_irq);
+ OFFSET(UREGS_LR_irq, struct cpu_user_regs, lr_irq);
+ OFFSET(UREGS_SPSR_irq, struct cpu_user_regs, spsr_irq);
+
+ OFFSET(UREGS_SP_fiq, struct cpu_user_regs, sp_fiq);
+ OFFSET(UREGS_LR_fiq, struct cpu_user_regs, lr_fiq);
+ OFFSET(UREGS_SPSR_fiq, struct cpu_user_regs, spsr_fiq);
+
+ OFFSET(UREGS_R8_fiq, struct cpu_user_regs, r8_fiq);
+ OFFSET(UREGS_R9_fiq, struct cpu_user_regs, r9_fiq);
+ OFFSET(UREGS_R10_fiq, struct cpu_user_regs, r10_fiq);
+ OFFSET(UREGS_R11_fiq, struct cpu_user_regs, r11_fiq);
+ OFFSET(UREGS_R12_fiq, struct cpu_user_regs, r12_fiq);
+
+ OFFSET(UREGS_kernel_sizeof, struct cpu_user_regs, cpsr);
+ DEFINE(UREGS_user_sizeof, sizeof(struct cpu_user_regs));
+ BLANK();
+
+ DEFINE(CPUINFO_sizeof, sizeof(struct cpu_info));
+
+ OFFSET(VCPU_arch_saved_context, struct vcpu, arch.saved_context);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */