19990502 sourceware importbinu_ss_19990502

1 files changed, 71 insertions, 0 deletions

diff --git a/include/aout/dynix3.h b/include/aout/dynix3.h
new file mode 100644
index 0000000..efeeebf
--- /dev/null
+++ b/include/aout/dynix3.h
@@ -0,0 +1,71 @@
+/*
+ * a.out specifics for Sequent Symmetry running Dynix 3.x
+ */
+#ifndef A_OUT_DYNIX3_H
+#define A_OUT_DYNIX3_H
+
+#define external_exec dynix_external_exec
+
+/* struct exec for Dynix 3
+ *
+ * a_gdtbl and a_bootstrap are only for standalone binaries.
+ * Shared data fields are not supported by the kernel as of Dynix 3.1,
+ * but are supported by Dynix compiler programs.
+ */
+struct dynix_external_exec {
+	unsigned char e_info[4];
+	unsigned char e_text[4];
+	unsigned char e_data[4];
+	unsigned char e_bss[4];
+	unsigned char e_syms[4];
+	unsigned char e_entry[4];
+	unsigned char e_trsize[4];
+	unsigned char e_drsize[4];
+	unsigned char e_g_code[8], e_g_data[8], e_g_desc[8];
+	unsigned char e_shdata[4];
+	unsigned char e_shbss[4];
+	unsigned char e_shdrsize[4];
+	unsigned char e_bootstrap[44];
+	unsigned char e_reserved[12];
+	unsigned char e_version[4];
+};
+
+#define	EXEC_BYTES_SIZE	(128)
+
+/*
+ * All executables under Dynix are demand paged with read-only text,
+ * Thus no NMAGIC.
+ *
+ * ZMAGIC has a page of 0s at virtual 0,
+ * XMAGIC has an invalid page at virtual 0
+ */
+#define OMAGIC	0x12eb		/* .o */
+#define ZMAGIC	0x22eb		/* zero @ 0, demand load */
+#define XMAGIC	0x32eb		/* invalid @ 0, demand load */
+#define SMAGIC	0x42eb		/* standalone, not supported here */
+
+#define N_BADMAG(x) ((OMAGIC != N_MAGIC(x)) && \
+		     (ZMAGIC != N_MAGIC(x)) && \
+		     (XMAGIC != N_MAGIC(x)) && \
+		     (SMAGIC != N_MAGIC(x)))
+
+#define N_ADDRADJ(x) ((ZMAGIC == N_MAGIC(x) || XMAGIC == N_MAGIC(x)) ? 0x1000 : 0)
+
+#define N_TXTOFF(x) (EXEC_BYTES_SIZE)
+#define N_DATOFF(x) (N_TXTOFF(x) + N_TXTSIZE(x))
+#define N_SHDATOFF(x) (N_DATOFF(x) + (x).a_data)
+#define N_TRELOFF(x) (N_SHDATOFF(x) + (x).a_shdata)
+#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
+#define N_SHDRELOFF(x) (N_DRELOFF(x) + (x).a_drsize)
+#define N_SYMOFF(x) (N_SHDRELOFF(x) + (x).a_shdrsize)
+#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
+
+#define N_TXTADDR(x) \
+	(((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? 0 \
+	 : TEXT_START_ADDR + EXEC_BYTES_SIZE)
+
+#define N_TXTSIZE(x) \
+	(((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? ((x).a_text) \
+	 : ((x).a_text - N_ADDRADJ(x) - EXEC_BYTES_SIZE))
+
+#endif /* A_OUT_DYNIX3_H */