aarch64-pe support for LD, GAS and BFD

Allows aarch64-pe to be targeted natively, not having to use objcopy to convert it from ELF to PE.
Based on initial work by Jedidiah Thompson

Co-authored-by: Jedidiah Thompson <wej22007@outlook.com>
Co-authored-by: Zac Walker <zac.walker@linaro.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/include/coff/aarch64.h b/include/coff/aarch64.h
index 2bbeaa9..100e08f 100644
--- a/include/coff/aarch64.h
+++ b/include/coff/aarch64.h
@@ -60,4 +60,26 @@ struct external_reloc
 #define RELOC struct external_reloc
 #define RELSZ 14
 
+/* ARM64 relocations types. */
+
+
+#define IMAGE_REL_ARM64_ABSOLUTE        0x0000  /* No relocation required */
+#define IMAGE_REL_ARM64_ADDR32          0x0001  /* The 32-bit VA of the target. */
+#define IMAGE_REL_ARM64_ADDR32NB        0x0002  /* The 32-bit RVA of the target. */
+#define IMAGE_REL_ARM64_BRANCH26        0x0003  /* The 26-bit relative displacement to the target, for B and BL instructions. */
+#define IMAGE_REL_ARM64_PAGEBASE_REL21  0x0004  /* The page base of the target, for ADRP instruction. */
+#define IMAGE_REL_ARM64_REL21           0x0005  /* The 12-bit relative displacement to the target, for instruction ADR */
+#define IMAGE_REL_ARM64_PAGEOFFSET_12A  0x0006  /* The 12-bit page offset of the target, for instructions ADD/ADDS (immediate) with zero shift. */
+#define IMAGE_REL_ARM64_PAGEOFFSET_12L  0x0007  /* The 12-bit page offset of the target, for instruction LDR (indexed, unsigned immediate). */
+#define IMAGE_REL_ARM64_SECREL          0x0008  /* The 32-bit offset of the target from the beginning of its section. This is used to support debugging information and static thread local storage. */
+#define IMAGE_REL_ARM64_SECREL_LOW12A   0x0009  /* Bit 0:11 of section offset of the target, for instructions ADD/ADDS (immediate) with zero shift. */
+#define IMAGE_REL_ARM64_SECREL_HIGH12A  0x000A  /* Bit 12:23 of section offset of the target, for instructions ADD/ADDS (immediate) with zero shift. */
+#define IMAGE_REL_ARM64_SECREL_LOW12L   0x000B  /* Bit 0:11 of section offset of the target, for instruction LDR (indexed, unsigned immediate). */
+#define IMAGE_REL_ARM64_TOKEN           0x000C  /* CLR token */
+#define IMAGE_REL_ARM64_SECTION         0x000D  /* The 16-bit section index of the section that contains the target. This is used to support debugging information. */
+#define IMAGE_REL_ARM64_ADDR64          0x000E  /* The 64-bit VA of the relocation target. */
+#define IMAGE_REL_ARM64_BRANCH19        0x000F  /* 19 bit offset << 2 & sign ext. for conditional B */
+#define IMAGE_REL_ARM64_BRANCH14        0x0010  /* The 14-bit offset to the relocation target, for instructions TBZ and TBNZ. */
+#define IMAGE_REL_ARM64_REL32           0x0011  /* The 32-bit relative address from the byte following the relocation. */
+
 #define ARM_NOTE_SECTION ".note"