ia32: support PIE in asm

In PIE on ia32 function calls should be made using GOT. JIRA: RTOS-664
phoenix-rtos · Dec 10, 2023 · 216481a · 216481a
1 parent 36e8273
commit 216481a
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/arch/ia32/signal.S b/arch/ia32/signal.S
@@ -21,12 +21,25 @@
 .type _signal_trampoline, %function
 _signal_trampoline:
 	/* Signal number on stack */
+#if __pic__ == 0
 	call _signal_handler
+#else
+	call .l1
+.l1:
+	pop %ebx
+	add $_GLOBAL_OFFSET_TABLE_+(.-.l1), %ebx
+
+	call _signal_handler@got(%ebx)
+#endif
 
 	addl $4, %esp
 	/* Put old mask on stack */
 	push %eax
 	/* cpu context *, eip, esp on stack */
+#if __pic__ == 0
 	call sigreturn
+#else
+	call sigreturn@got(%ebx)
+#endif
 .size _signal_trampoline, .-_signal_trampoline