Linux_SDK_V0.9.5Linux_SDK_V0.9.5

1 files changed, 43 insertions, 0 deletions

diff --git a/lib/asm-offsets.c b/lib/asm-offsets.c
new file mode 100644
index 00000000..26175132
--- /dev/null
+++ b/lib/asm-offsets.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
+ *
+ * This program is used to generate definitions needed by
+ * assembly language modules.
+ *
+ * We use the technique used in the OSF Mach kernel code:
+ * generate asm statements containing #defines,
+ * compile this file to assembler, and then extract the
+ * #defines from the assembly-language output.
+ */
+
+#include <common.h>
+
+#include <linux/kbuild.h>
+
+int main(void)
+{
+	/* Round up to make sure size gives nice stack alignment */
+	DEFINE(GENERATED_GBL_DATA_SIZE,
+		(sizeof(struct global_data) + 15) & ~15);
+
+	DEFINE(GENERATED_BD_INFO_SIZE,
+		(sizeof(struct bd_info) + 15) & ~15);
+
+	DEFINE(GD_SIZE, sizeof(struct global_data));
+
+	DEFINE(GD_BD, offsetof(struct global_data, bd));
+#if CONFIG_VAL(SYS_MALLOC_F_LEN)
+	DEFINE(GD_MALLOC_BASE, offsetof(struct global_data, malloc_base));
+#endif
+
+	DEFINE(GD_RELOCADDR, offsetof(struct global_data, relocaddr));
+
+	DEFINE(GD_RELOC_OFF, offsetof(struct global_data, reloc_off));
+
+	DEFINE(GD_START_ADDR_SP, offsetof(struct global_data, start_addr_sp));
+
+	DEFINE(GD_NEW_GD, offsetof(struct global_data, new_gd));
+
+	return 0;
+}