1 files changed, 30 insertions, 0 deletions
diff --git a/architecture.c b/architecture.c
new file mode 100644
index 0000000..67838a0
--- /dev/null
+++ b/architecture.c
@@ -0,0 +1,30 @@
+#include "architecture.h"
+
+void architecture_info(struct archinfo *ai, const struct iovec *regs) {
+    user_regs_t *data = regs->iov_base;
+
+    /* Not every platform supports 64-bits, but those that do are generally
+     * backward compatible with 32-bits, so this is the one we explicitly
+     * compare with. */
+    if (regs->iov_len == sizeof(struct user_regs_32)) {
+        ai->progmctr = data->PROGMCTR_32;
+        ai->stackptr = data->STACKPTR_32;
+        ai->bp_insn = BREAKPOINT_INSN_32;
+        ai->bp_mask = BREAKPOINT_MASK_32;
+        ai->bp_adjust = BREAKPOINT_ADJS_32;
+        ai->cs_arch = CAPSTONE_ARCH_32;
+        ai->cs_mode = CAPSTONE_MODE_32;
+        ai->cs_call = CAPSTONE_CALL_32;
+        ai->wordsize = WORDSIZE_32;
+    } else {
+        ai->progmctr = data->PROGMCTR_64;
+        ai->stackptr = data->STACKPTR_64;
+        ai->bp_insn = BREAKPOINT_INSN_64;
+        ai->bp_mask = BREAKPOINT_MASK_64;
+        ai->bp_adjust = BREAKPOINT_ADJS_64;
+        ai->cs_arch = CAPSTONE_ARCH_64;
+        ai->cs_mode = CAPSTONE_MODE_64;
+        ai->cs_call = CAPSTONE_CALL_64;
+        ai->wordsize = WORDSIZE_64;
+    }
+}