[PATCH] Add missing ARM relocation codes and fix existing ones

* [PATCH] Add missing ARM relocation codes and fix existing ones
@ 2013-03-17 20:36 Francesco Lavra
  2013-04-01 16:45 ` Francesco Lavra
  0 siblings, 1 reply; 3+ messages in thread
From: Francesco Lavra @ 2013-03-17 20:36 UTC (permalink / raw)
  To: The development of GNU GRUB

I'm working on the GRUB port to ARM using the EFI platform. When
generating a relocatable ARM image, some relocation entries use a
relocation code (0x33) which is not defined in include/grub/elf.h. So I
went through the latest edition of the ELF specification for the ARM
architecture (ARM IHI 0044E) and added the missing definitions to the
header file. I also noticed some differences between the existing
definitions and the spec: some relocation names are different from the
spec, some definitions aren't in the spec at all, and one
(R_ARM_IRELATIVE) has a different value than that from the spec. So
while at it I fixed those differences as well. Hence this patch.

2013-03-17  Francesco Lavra  <francescolavra.fl@gmail.com>

	* include/grub/elf.h: Add missing ARM relocation codes and fix
	  existing ones.

=== modified file 'include/grub/elf.h'

--- include/grub/elf.h	2013-01-20 22:01:47 +0000
+++ include/grub/elf.h	2013-03-17 20:34:40 +0000
@@ -2067,7 +2067,7 @@
 #define R_ARM_PC24		1	/* PC relative 26 bit branch */
 #define R_ARM_ABS32		2	/* Direct 32 bit  */
 #define R_ARM_REL32		3	/* PC relative 32 bit */
-#define R_ARM_PC13		4
+#define R_ARM_LDR_PC_G0		4
 #define R_ARM_ABS16		5	/* Direct 16 bit */
 #define R_ARM_ABS12		6	/* Direct 12 bit */
 #define R_ARM_THM_ABS5		7
@@ -2075,18 +2075,21 @@
 #define R_ARM_SBREL32		9
 #define R_ARM_THM_CALL		10
 #define R_ARM_THM_PC8		11
-#define R_ARM_AMP_VCALL9	12
-#define R_ARM_SWI24		13
+#define R_ARM_BREL_ADJ		12
+#define R_ARM_TLS_DESC		13
 #define R_ARM_THM_SWI8		14
 #define R_ARM_XPC25		15
 #define R_ARM_THM_XPC22		16
+#define R_ARM_TLS_DTPMOD32	17
+#define R_ARM_TLS_DTPOFF32	18
+#define R_ARM_TLS_TPOFF32	19
 #define R_ARM_COPY		20	/* Copy symbol at runtime */
 #define R_ARM_GLOB_DAT		21	/* Create GOT entry */
 #define R_ARM_JUMP_SLOT		22	/* Create PLT entry */
 #define R_ARM_RELATIVE		23	/* Adjust by program base */
-#define R_ARM_GOTOFF		24	/* 32 bit offset to GOT */
-#define R_ARM_GOTPC		25	/* 32 bit PC relative offset to GOT */
-#define R_ARM_GOT32		26	/* 32 bit GOT entry */
+#define R_ARM_GOTOFF32		24	/* 32 bit offset to GOT */
+#define R_ARM_BASE_PREL		25	/* 32 bit PC relative offset to GOT */
+#define R_ARM_GOT_BREL		26	/* 32 bit GOT entry */
 #define R_ARM_PLT32		27	/* 32 bit PLT address */
 #define R_ARM_CALL		28
 #define R_ARM_JUMP24		29
@@ -2098,14 +2101,72 @@
 #define R_ARM_LDR_SBREL_11_0	35
 #define R_ARM_ALU_SBREL_19_12	36
 #define R_ARM_ALU_SBREL_27_20	37
+#define R_ARM_TARGET1		38
+#define R_ARM_SBREL31		39
+#define R_ARM_V4BX		40
+#define R_ARM_TARGET2		41
+#define R_ARM_PREL31		42
+#define R_ARM_MOVW_ABS_NC	43
+#define R_ARM_MOVT_ABS		44
+#define R_ARM_MOVW_PREL_NC	45
+#define R_ARM_MOVT_PREL		46
+#define R_ARM_THM_MOVW_ABS_NC	47
+#define R_ARM_THM_MOVT_ABS	48
+#define R_ARM_THM_MOVW_PREL_NC	49
+#define R_ARM_THM_MOVT_PREL	50
+#define R_ARM_THM_JUMP19	51
+#define R_ARM_THM_JUMP6		52
+#define R_ARM_THM_ALU_PREL_11_0	53
+#define R_ARM_THM_PC12		54
+#define R_ARM_ABS32_NOI		55
+#define R_ARM_REL32_NOI		56
+#define R_ARM_ALU_PC_G0_NC	57
+#define R_ARM_ALU_PC_G0		58
+#define R_ARM_ALU_PC_G1_NC	59
+#define R_ARM_ALU_PC_G1		60
+#define R_ARM_ALU_PC_G2		61
+#define R_ARM_LDR_PC_G1		62
+#define R_ARM_LDR_PC_G2		63
+#define R_ARM_LDRS_PC_G0	64
+#define R_ARM_LDRS_PC_G1	65
+#define R_ARM_LDRS_PC_G2	66
+#define R_ARM_LDC_PC_G0		67
+#define R_ARM_LDC_PC_G1		68
+#define R_ARM_LDC_PC_G2		69
+#define R_ARM_ALU_SB_G0_NC	70
+#define R_ARM_ALU_SB_G0		71
+#define R_ARM_ALU_SB_G1_NC	72
+#define R_ARM_ALU_SB_G1		73
+#define R_ARM_ALU_SB_G2		74
+#define R_ARM_LDR_SB_G0		75
+#define R_ARM_LDR_SB_G1		76
+#define R_ARM_LDR_SB_G2		77
+#define R_ARM_LDRS_SB_G0	78
+#define R_ARM_LDRS_SB_G1	79
+#define R_ARM_LDRS_SB_G2	80
+#define R_ARM_LDC_SB_G0		81
+#define R_ARM_LDC_SB_G1		82
+#define R_ARM_LDC_SB_G2		83
+#define R_ARM_MOVW_BREL_NC	84
+#define R_ARM_MOVT_BREL		85
+#define R_ARM_MOVW_BREL		86
+#define R_ARM_THM_MOVW_BREL_NC	87
+#define R_ARM_THM_MOVT_BREL	88
+#define R_ARM_THM_MOVW_BREL	89
 #define R_ARM_TLS_GOTDESC	90
 #define R_ARM_TLS_CALL		91
 #define R_ARM_TLS_DESCSEQ	92
 #define R_ARM_THM_TLS_CALL	93
+#define R_ARM_PLT32_ABS		94
+#define R_ARM_GOT_ABS		95
+#define R_ARM_GOT_PREL		96
+#define R_ARM_GOT_BREL12	97
+#define R_ARM_GOTOFF12		98
+#define R_ARM_GOTRELAX		99
 #define R_ARM_GNU_VTENTRY	100
 #define R_ARM_GNU_VTINHERIT	101
-#define R_ARM_THM_PC11		102	/* thumb unconditional branch */
-#define R_ARM_THM_PC9		103	/* thumb conditional branch */
+#define R_ARM_THM_JUMP11	102	/* thumb unconditional branch */
+#define R_ARM_THM_JUMP8		103	/* thumb conditional branch */
 #define R_ARM_TLS_GD32		104	/* PC-rel 32 bit for global dynamic
 					   thread local data */
 #define R_ARM_TLS_LDM32		105	/* PC-rel 32 bit for local dynamic
@@ -2116,15 +2177,30 @@
 					   static TLS block offset */
 #define R_ARM_TLS_LE32		108	/* 32 bit offset relative to static
 					   TLS block */
-#define	R_ARM_THM_TLS_DESCSEQ	129
-#define R_ARM_IRELATIVE		160
-#define R_ARM_RXPC25		249
-#define R_ARM_RSBREL32		250
-#define R_ARM_THM_RPC22		251
-#define R_ARM_RREL32		252
-#define R_ARM_RABS22		253
-#define R_ARM_RPC24		254
-#define R_ARM_RBASE		255
+#define R_ARM_TLS_LDO12		109
+#define R_ARM_TLS_LE12		110
+#define R_ARM_IE12GP		111
+#define R_ARM_PRIVATE_0		112
+#define R_ARM_PRIVATE_1		113
+#define R_ARM_PRIVATE_2		114
+#define R_ARM_PRIVATE_3		115
+#define R_ARM_PRIVATE_4		116
+#define R_ARM_PRIVATE_5		117
+#define R_ARM_PRIVATE_6		118
+#define R_ARM_PRIVATE_7		119
+#define R_ARM_PRIVATE_8		120
+#define R_ARM_PRIVATE_9		121
+#define R_ARM_PRIVATE_10	122
+#define R_ARM_PRIVATE_11	123
+#define R_ARM_PRIVATE_12	124
+#define R_ARM_PRIVATE_13	125
+#define R_ARM_PRIVATE_14	126
+#define R_ARM_PRIVATE_15	127
+#define R_ARM_ME_TOO		128
+#define R_ARM_THM_TLS_DESCSEQ16	129
+#define R_ARM_THM_TLS_DESCSEQ32	130
+#define R_ARM_THM_GOT_BREL12	131
+#define R_ARM_IRELATIVE		140
 /* Keep this the last entry.  */
 #define R_ARM_NUM		256
 

--
Regards,
Francesco


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