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authorRich Felker <dalias@aerifal.cx>2011-10-01 00:52:33 -0400
committerRich Felker <dalias@aerifal.cx>2011-10-01 00:52:33 -0400
commit12ace5bf76040e928df1abd57e9b5134ca4647c6 (patch)
tree43494d5b7911492e15d30156641b84cb42e4798b /arch/arm/reloc.h
parent4b87736998e8d8c0610c3c31b6862c77248a98df (diff)
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first attempt at arm dynamic linking
Diffstat (limited to 'arch/arm/reloc.h')
-rw-r--r--arch/arm/reloc.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/reloc.h b/arch/arm/reloc.h
new file mode 100644
index 00000000..0b641fcc
--- /dev/null
+++ b/arch/arm/reloc.h
@@ -0,0 +1,26 @@
+#include <string.h>
+#include <elf.h>
+
+#define ETC_LDSO_PATH "/etc/ld-musl-arm.path"
+
+#define IS_COPY(x) ((x)==R_ARM_COPY)
+#define IS_PLT(x) ((x)==R_ARM_JMP_SLOT)
+
+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_ARM_ABS32:
+		*reloc_addr += sym_val;
+		break;
+	case R_ARM_GLOB_DAT:
+	case R_ARM_JMP_SLOT:
+		*reloc_addr = sym_val;
+		break;
+	case R_ARM_RELATIVE:
+		*reloc_addr += (size_t)base_addr;
+		break;
+	case R_ARM_COPY:
+		memcpy(reloc_addr, (void *)sym_val, sym_size);
+		break;
+	}
+}