i386: bound checking needs pic in shared library

herman ten brugge committed 9 months ago

Commit abb2f391 parent 4fccaf61 file · +18 −2Browse files

Unified · Split

 /* bound check support functions */
 #ifdef CONFIG_TCC_BCHECK
+/* Need PIC for shared libraries */
+static void gen_bound_call(int v)
+{
+    Sym *sym;
+    sym = external_helper_sym(v);
+#if defined CONFIG_TCC_PIC
+    get_pc_thunk(TREG_EBX, 1);
+    oad(0xe8, -4);
+    greloc(cur_text_section, sym, ind - 4, R_386_PLT32);
+#else
+    oad(0xe8, -4);
+    greloc(cur_text_section, sym, ind - 4, R_386_PC32);
+#endif
+}
 static void gen_bounds_prolog(void)
 {
     /* leave some room for bound checking code */
         greloc(cur_text_section, sym_data, ind + 1, R_386_32);
         ind = ind + 5;
 #endif
-        gen_static_call(TOK___bound_local_new);
+        gen_bound_call(TOK___bound_local_new);
         ind = saved_ind;
     }
     greloc(cur_text_section, sym_data, ind + 1, R_386_32);
     oad(0xb8, 0); /* mov %eax, xxx */
 #endif
-    gen_static_call(TOK___bound_local_delete);
+    gen_bound_call(TOK___bound_local_delete);
     o(0x585a); /* restore returned value, if any */
 }
 #endif

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