Pete Popov writes:

Hi Erik,

I'm not sure why the NIOS support is not in uClibc -- perhaps the patch
was rejected or never submitted? In any case, I'm playing with some NIOS
stuff and created this patch against 0.9.26. The work was done by
Microtronix. I'm not sure who else contributed to it. It would be great
to have the NIOS support available in uClibc so developers don't have to
go searching for these bits.

Pete

1 files changed, 52 insertions, 0 deletions

diff --git a/include/elf.h b/include/elf.h
index 7ce1b398e..75042ca94 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -258,6 +258,8 @@ typedef struct
 #define EM_CYGNUS_FRV	0x5441
 
 #define EM_ALPHA	0x9026
+#define EM_NIOS32	0xfebb		/* Altera Nios 32 */
+#define EM_ALTERA_NIOS2  0x9ee5	/* Altera Nios II */
 
 /* V850 backend magic number.  Written in the absense of an ABI.  */
 #define EM_CYGNUS_V850 0x9080
@@ -2554,6 +2556,56 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_H8_ABS32     65
 #define R_H8_ABS32A16 127
 
+/* Altera NIOS specific definitions.  */
+
+/* NIOS relocations. */
+#define R_NIOS_NONE				0
+#define R_NIOS_32				1	/* A 32 bit absolute relocation.*/
+#define R_NIOS_LO16_LO5			2	/* A LO-16 5 bit absolute relocation.  */
+#define R_NIOS_LO16_HI11		3	/* A LO-16 top 11 bit absolute relocation.  */
+#define R_NIOS_HI16_LO5			4	/* A HI-16 5 bit absolute relocation.  */
+#define R_NIOS_HI16_HI11		5	/* A HI-16 top 11 bit absolute relocation.  */
+#define R_NIOS_PCREL6			6	/* A 6 bit relative relocation.  */
+#define R_NIOS_PCREL8			7	/* An 8 bit relative relocation.  */
+#define R_NIOS_PCREL11			8	/* An 11 bit relative relocation.  */
+#define R_NIOS_16				9	/* A 16 bit absolute relocation.  */
+#define R_NIOS_H_LO5			10	/* Low 5-bits of absolute relocation in halfwords.  */
+#define R_NIOS_H_HI11			11	/* Top 11 bits of 16-bit absolute relocation in halfwords.  */
+#define R_NIOS_H_XLO5			12	/* Low 5 bits of top 16-bits of 32-bit absolute relocation in halfwords.  */
+#define R_NIOS_H_XHI11			13	/* Top 11 bits of top 16-bits of 32-bit absolute relocation in halfwords.  */
+#define R_NIOS_H_16				14	/* Half-word @h value */
+#define R_NIOS_H_32				15	/* Word @h value */
+#define R_NIOS_GNU_VTINHERIT	200	/* GNU extension to record C++ vtable hierarchy */
+#define R_NIOS_GNU_VTENTRY		201	/* GNU extension to record C++ vtable member usage */
+/* Keep this the last entry.  */
+#define R_NIOS_NUM				202
+
+/* NIOS II relocations */
+#define R_NIOS2_NONE			0
+#define R_NIOS2_S16				1
+#define R_NIOS2_U16				2
+#define R_NIOS2_PCREL16			3
+#define R_NIOS2_CALL26			4
+#define R_NIOS2_IMM5			5
+#define R_NIOS2_CACHE_OPX 		6
+#define R_NIOS2_IMM6			7
+#define R_NIOS2_IMM8			8
+#define R_NIOS2_HI16			9
+#define R_NIOS2_LO16			10
+#define R_NIOS2_HIADJ16 		11
+#define R_NIOS2_BFD_RELOC_32	12
+#define R_NIOS2_BFD_RELOC_16	13
+#define R_NIOS2_BFD_RELOC_8 	14
+#define R_NIOS2_GPREL			15
+#define R_NIOS2_GNU_VTINHERIT 	16
+#define R_NIOS2_GNU_VTENTRY  	17
+#define R_NIOS2_UJMP			18
+#define R_NIOS2_CJMP			19
+#define R_NIOS2_CALLR			20
+#define R_NIOS2_ALIGN			21
+/* Keep this the last entry.  */
+#define R_NIOS2_NUM				22
+
 __END_DECLS
 
 #endif	/* elf.h */