Index: fusl/arch/x32/reloc.h |
diff --git a/fusl/arch/x32/reloc.h b/fusl/arch/x32/reloc.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..dc039adf5b455130af4a4d5af42a722943229bc0 |
--- /dev/null |
+++ b/fusl/arch/x32/reloc.h |
@@ -0,0 +1,31 @@ |
+#define LDSO_ARCH "x32" |
+ |
+/* FIXME: x32 is very strange in its use of 64-bit relocation types in |
+ * a 32-bit environment. As long as the memory at reloc_addr is |
+ * zero-filled prior to relocations, just treating 64-bit relocations |
+ * as operating on 32-bit slots should be fine, but this should be |
+ * checked. In particular, R_X86_64_64, R_X86_64_DTPOFF64, and |
+ * R_X86_64_TPOFF64 may need checking. */ |
+ |
+/* The R_X86_64_64, R_X86_64_DTPOFF32, and R_X86_64_TPOFF32 reloc types |
+ * were previously mapped in the switch table form of this file; however, |
+ * they do not seem to be used/usable for anything. If needed, new |
+ * mappings will have to be added. */ |
+ |
+#define REL_SYMBOLIC R_X86_64_32 |
+#define REL_OFFSET R_X86_64_PC32 |
+#define REL_GOT R_X86_64_GLOB_DAT |
+#define REL_PLT R_X86_64_JUMP_SLOT |
+#define REL_RELATIVE R_X86_64_RELATIVE |
+#define REL_COPY R_X86_64_COPY |
+#define REL_DTPMOD R_X86_64_DTPMOD64 |
+#define REL_DTPOFF R_X86_64_DTPOFF64 |
+#define REL_TPOFF R_X86_64_TPOFF64 |
+ |
+#define CRTJMP(pc,sp) __asm__ __volatile__( \ |
+ "mov %1,%%esp ; jmp *%0" : : "r"((uint64_t)(uintptr_t)pc), "r"(sp) : "memory" ) |
+ |
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \ |
+ ".hidden " #sym "\n" \ |
+ " lea " #sym "(%%rip),%0\n" \ |
+ : "=r"(*fp) : : "memory" ) |