From 124ec188720b6bdea85ade49e7ea195161b12fce Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sat, 5 Jan 2008 10:05:27 +0000
Subject: Chris Zankel writes: The following patches add support for the Xtensa
 processor architecture to uClibc. They are based on a recent SVN checkout
 (12/05/2007).

The first patch (attached to this post) adds Xtensa support to various
shared configuration and make files. The following patches then include
the Xtensa specific files and directories.

I welcome any feedback and would appreciate it if you could include the
patches into the mainline tree. I am certainly committed to maintain the port.

Bob Wilson was kind enough to review the patches.

Some notes about the architecture: Xtensa is a configurable and
extensible processor architecture developed by Tensilica. For more
information, please visit: www.linux-xtensa.org.
---
 include/elf.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

(limited to 'include/elf.h')

diff --git a/include/elf.h b/include/elf.h
index 5ce5c694a..4c6d09012 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -2977,6 +2977,64 @@ typedef Elf32_Addr Elf32_Conflict;
 /* Keep this the last entry.  */
 #define R_NIOS2_NUM				22
 
+/* Xtensa-specific declarations */
+
+/* Xtensa values for the Dyn d_tag field.  */
+#define DT_XTENSA_GOT_LOC_OFF	(DT_LOPROC + 0)
+#define DT_XTENSA_GOT_LOC_SZ	(DT_LOPROC + 1)
+#define DT_XTENSA_NUM		2
+
+/* Xtensa relocations.  */
+#define R_XTENSA_NONE		0
+#define R_XTENSA_32		1
+#define R_XTENSA_RTLD		2
+#define R_XTENSA_GLOB_DAT	3
+#define R_XTENSA_JMP_SLOT	4
+#define R_XTENSA_RELATIVE	5
+#define R_XTENSA_PLT		6
+#define R_XTENSA_OP0		8
+#define R_XTENSA_OP1		9
+#define R_XTENSA_OP2		10
+#define R_XTENSA_ASM_EXPAND	11
+#define R_XTENSA_ASM_SIMPLIFY	12
+#define R_XTENSA_GNU_VTINHERIT	15
+#define R_XTENSA_GNU_VTENTRY	16
+#define R_XTENSA_DIFF8		17
+#define R_XTENSA_DIFF16		18
+#define R_XTENSA_DIFF32		19
+#define R_XTENSA_SLOT0_OP	20
+#define R_XTENSA_SLOT1_OP	21
+#define R_XTENSA_SLOT2_OP	22
+#define R_XTENSA_SLOT3_OP	23
+#define R_XTENSA_SLOT4_OP	24
+#define R_XTENSA_SLOT5_OP	25
+#define R_XTENSA_SLOT6_OP	26
+#define R_XTENSA_SLOT7_OP	27
+#define R_XTENSA_SLOT8_OP	28
+#define R_XTENSA_SLOT9_OP	29
+#define R_XTENSA_SLOT10_OP	30
+#define R_XTENSA_SLOT11_OP	31
+#define R_XTENSA_SLOT12_OP	32
+#define R_XTENSA_SLOT13_OP	33
+#define R_XTENSA_SLOT14_OP	34
+#define R_XTENSA_SLOT0_ALT	35
+#define R_XTENSA_SLOT1_ALT	36
+#define R_XTENSA_SLOT2_ALT	37
+#define R_XTENSA_SLOT3_ALT	38
+#define R_XTENSA_SLOT4_ALT	39
+#define R_XTENSA_SLOT5_ALT	40
+#define R_XTENSA_SLOT6_ALT	41
+#define R_XTENSA_SLOT7_ALT	42
+#define R_XTENSA_SLOT8_ALT	43
+#define R_XTENSA_SLOT9_ALT	44
+#define R_XTENSA_SLOT10_ALT	45
+#define R_XTENSA_SLOT11_ALT	46
+#define R_XTENSA_SLOT12_ALT	47
+#define R_XTENSA_SLOT13_ALT	48
+#define R_XTENSA_SLOT14_ALT	49
+/* Keep this the last entry.  */
+#define R_XTENSA_NUM		50
+
 __END_DECLS
 
 #endif	/* elf.h */
-- 
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