diff --git a/LibOS/shim/src/start.S b/LibOS/shim/src/start.S
index c2a68ed6..a65544e9 100644
--- a/LibOS/shim/src/start.S
+++ b/LibOS/shim/src/start.S
@@ -16,6 +16,7 @@
    ...
    NULL
  */
+    .file "start.S"
     .text
     .globl shim_start
     .type shim_start,@function
diff --git a/LibOS/shim/src/syscallas.S b/LibOS/shim/src/syscallas.S
index 09415c5d..af028303 100644
--- a/LibOS/shim/src/syscallas.S
+++ b/LibOS/shim/src/syscallas.S
@@ -24,6 +24,7 @@
 
 #include "asm-offsets.h"
 
+        .file "syscallas.S"
         .global syscalldb
         .type syscalldb, @function
         .extern shim_table, debug_unsupp
diff --git a/LibOS/shim/src/vdso/vdso-data.S b/LibOS/shim/src/vdso/vdso-data.S
index 54c23730..bbcd27e9 100644
--- a/LibOS/shim/src/vdso/vdso-data.S
+++ b/LibOS/shim/src/vdso/vdso-data.S
@@ -1,3 +1,4 @@
+	.file "vdso-data.S"
 	.section .rodata
 
 	.global vdso_so
diff --git a/LibOS/shim/src/vdso/vdso-note.S b/LibOS/shim/src/vdso/vdso-note.S
index 545bc476..291ded1c 100644
--- a/LibOS/shim/src/vdso/vdso-note.S
+++ b/LibOS/shim/src/vdso/vdso-note.S
@@ -1,3 +1,4 @@
+	.file "vdso-note.S"
 	/* This .note section informs dynamic linker about vDSO */
 	.section .note.Linux, "a", @note
 
diff --git a/Pal/src/host/Linux-SGX/enclave_entry.S b/Pal/src/host/Linux-SGX/enclave_entry.S
index fecc1014..4ab4a5ba 100644
--- a/Pal/src/host/Linux-SGX/enclave_entry.S
+++ b/Pal/src/host/Linux-SGX/enclave_entry.S
@@ -1,6 +1,8 @@
 #include "sgx_arch.h"
 #include "asm-offsets.h"
 
+	.file "enclave_entry.S"
+
 # In some cases, like bogus parameters passed to enclave_entry, it's tricky to
 # return cleanly (passing the correct return address to EEXIT, OCALL_EXIT can
 # be interrupted, etc.). Since those cases should only ever happen with a
diff --git a/Pal/src/host/Linux-SGX/sgx_entry.S b/Pal/src/host/Linux-SGX/sgx_entry.S
index ff6667b9..b32f3d06 100644
--- a/Pal/src/host/Linux-SGX/sgx_entry.S
+++ b/Pal/src/host/Linux-SGX/sgx_entry.S
@@ -3,6 +3,8 @@
 
 #include "asm-offsets.h"
 
+	.file "sgx_entry.S"
+
 	.extern tcs_base
 
 	.global sgx_ecall
diff --git a/Pal/src/host/Linux/clone-x86_64.S b/Pal/src/host/Linux/clone-x86_64.S
index 2c2564e7..56731552 100644
--- a/Pal/src/host/Linux/clone-x86_64.S
+++ b/Pal/src/host/Linux/clone-x86_64.S
@@ -30,6 +30,8 @@
 
 #include "sysdep-x86_64.h"
 
+	.file "clone-x86_64.S"
+
 #define CLONE_VM	0x00000100
 #define CLONE_THREAD	0x00010000
 
diff --git a/Pal/src/host/Linux/gettimeofday-x86_64.S b/Pal/src/host/Linux/gettimeofday-x86_64.S
index 9c10416e..ef2d1cd3 100644
--- a/Pal/src/host/Linux/gettimeofday-x86_64.S
+++ b/Pal/src/host/Linux/gettimeofday-x86_64.S
@@ -26,6 +26,8 @@
 
 #include "sysdep-x86_64.h"
 
+	.file "gettimeofday-x86_64.S"
+
 /* For the calculation see asm/vsyscall.h.  */
 #define VSYSCALL_ADDR_vgettimeofday	0xffffffffff600000
 
diff --git a/Pal/src/user_start.S b/Pal/src/user_start.S
index 8866da2e..2f9d1ed8 100644
--- a/Pal/src/user_start.S
+++ b/Pal/src/user_start.S
@@ -17,6 +17,7 @@
 						NULL
 */
 
+	.file "user_start.S"
 	.text
 	.globl _start
 	.type _start,@function