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Diffstat (limited to 'arch')
-rw-r--r--arch/i386/reloc.h26
-rw-r--r--arch/x86_64/reloc.h28
2 files changed, 54 insertions, 0 deletions
diff --git a/arch/i386/reloc.h b/arch/i386/reloc.h
new file mode 100644
index 00000000..02b5fa02
--- /dev/null
+++ b/arch/i386/reloc.h
@@ -0,0 +1,26 @@
+#include <string.h>
+#include <elf.h>
+
+#define IS_COPY(x) ((x)==R_386_COPY)
+
+static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend)
+{
+ switch(type) {
+ case R_386_32:
+ *reloc_addr += sym_val;
+ break;
+ case R_386_PC32:
+ *reloc_addr += sym_val - (size_t)reloc_addr;
+ break;
+ case R_386_GLOB_DAT:
+ case R_386_JMP_SLOT:
+ *reloc_addr = sym_val;
+ break;
+ case R_386_RELATIVE:
+ *reloc_addr += (size_t)base_addr;
+ break;
+ case R_386_COPY:
+ memcpy(reloc_addr, (void *)sym_val, sym_size);
+ break;
+ }
+}
diff --git a/arch/x86_64/reloc.h b/arch/x86_64/reloc.h
new file mode 100644
index 00000000..2db6115d
--- /dev/null
+++ b/arch/x86_64/reloc.h
@@ -0,0 +1,28 @@
+#include <stdint.h>
+#include <string.h>
+#include <elf.h>
+
+#define IS_COPY(x) ((x)==R_X86_64_COPY)
+
+static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend)
+{
+ switch(type) {
+ case R_X86_64_GLOB_DAT:
+ case R_X86_64_JUMP_SLOT:
+ case R_X86_64_64:
+ *reloc_addr = sym_val + addend;
+ break;
+ case R_X86_64_32:
+ *(uint32_t *)reloc_addr = sym_val + addend;
+ break;
+ case R_X86_64_PC32:
+ *reloc_addr = sym_val + addend - (size_t)reloc_addr + (size_t)base_addr;
+ break;
+ case R_X86_64_RELATIVE:
+ *reloc_addr = (size_t)base_addr + addend;
+ break;
+ case R_X86_64_COPY:
+ memcpy(reloc_addr, (void *)sym_val, sym_size);
+ break;
+ }
+}