1 files changed, 102 insertions, 0 deletions
diff --git a/ldso/ldso/microblaze/dl-startup.h b/ldso/ldso/microblaze/dl-startup.h
new file mode 100644
index 000000000..0d3f3bf15
--- /dev/null
+++ b/ldso/ldso/microblaze/dl-startup.h
@@ -0,0 +1,102 @@
+/* Startup code for the microblaze platform, based on glibc 2.3.6, dl-machine.h */
+
+/*
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+__asm__ ("\
+	.text\n\
+	.globl _start\n\
+	.type _start,@function\n\
+_start:\n\
+	addk  r5,r0,r1\n\
+	addk  r3,r0,r0\n\
+1:\n\
+	addik r5,r5,4\n\
+	lw    r4,r5,r0\n\
+	bneid r4,1b\n\
+	addik r3,r3,1\n\
+	addik r3,r3,-1\n\
+	addk  r5,r0,r1\n\
+	sw    r3,r5,r0\n\
+	addik r1,r1,-24\n\
+	sw    r15,r1,r0\n\
+	brlid r15,_dl_start\n\
+	nop\n\
+	/* FALLTHRU */\n\
+\n\
+	.globl _dl_start_user\n\
+	.type _dl_start_user,@function\n\
+_dl_start_user:\n\
+	mfs   r20,rpc\n\
+	addik r20,r20,_GLOBAL_OFFSET_TABLE_+8\n\
+	lwi   r4,r20,_dl_skip_args@GOTOFF\n\
+	lwi   r5,r1,24\n\
+	rsubk r5,r4,r5\n\
+	addk  r4,r4,r4\n\
+	addk  r4,r4,r4\n\
+	addk  r1,r1,r4\n\
+	swi   r5,r1,24\n\
+	swi   r3,r1,20\n\
+	addk  r6,r5,r0\n\
+	addk  r5,r5,r5\n\
+	addk  r5,r5,r5\n\
+	addik r7,r1,28\n\
+	addk  r8,r7,r5\n\
+	addik r8,r8,4\n\
+	lwi   r5,r1,24\n\
+	lwi   r3,r1,20\n\
+	addk  r4,r5,r5\n\
+	addk  r4,r4,r4\n\
+	addik r6,r1,28\n\
+	addk  r7,r6,r4\n\
+	addik r7,r7,4\n\
+	addik r15,r20,_dl_fini@GOTOFF\n\
+	addik r15,r15,-8\n\
+	brad  r3\n\
+	addik r1,r1,24\n\
+	nop\n\
+	.size _dl_start_user, . - _dl_start_user\n\
+	.previous");
+
+/*
+ * Get a pointer to the argv array.  On many platforms this can be just
+ * the address of the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS)+1)
+
+/* The ld.so library requires relocations */
+#define ARCH_NEEDS_BOOTSTRAP_RELOCS
+
+static __always_inline
+void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
+	unsigned long symbol_addr, unsigned long load_addr, attribute_unused Elf32_Sym *symtab)
+{
+
+	switch (ELF32_R_TYPE(rpnt->r_info))
+	{
+		case R_MICROBLAZE_REL:
+
+			*reloc_addr = load_addr + rpnt->r_addend;
+			break;
+
+		default:
+			_dl_exit(1);
+			break;
+
+	}
+
+}