diff --git a/fx9860g.ld b/fx9860g.ld
index accaa19..f86ffa2 100644
--- a/fx9860g.ld
+++ b/fx9860g.ld
@@ -109,6 +109,7 @@ SECTIONS
 		*(.rodata.4)
 
 		*(.rodata .rodata.*)
+		*(.gint.rodata.sh3)
 	} > rom
 
 
diff --git a/fxcg50.ld b/fxcg50.ld
index 0f986af..eba6014 100644
--- a/fxcg50.ld
+++ b/fxcg50.ld
@@ -175,7 +175,7 @@ SECTIONS
 
 	/DISCARD/ : {
 		/* SH3-only data sections */
-		*(.gint.data.sh3 .gint.bss.sh3)
+		*(.gint.rodata.sh3 .gint.data.sh3 .gint.bss.sh3)
 		/* Java class registration (why are they even here?!) */
 		*(.jcr)
 		/* Asynchronous unwind tables: no C++ exception handling */
diff --git a/include/gint/defs/attributes.h b/include/gint/defs/attributes.h
index 4ca6037..04cab22 100644
--- a/include/gint/defs/attributes.h
+++ b/include/gint/defs/attributes.h
@@ -10,6 +10,7 @@
 /* Objects from the gint's uninitialized BSS section */
 #define GBSS		__attribute__((section(".gint.bss")))
 /* Additional sections that are only needed on SH3 */
+#define GRODATA3	__attribute__((section(".gint.rodata.sh3")))
 #define GDATA3		__attribute__((section(".gint.data.sh3")))
 #define GBSS3		__attribute__((section(".gint.bss.sh3")))
 /* Objects for the ILRAM, XRAM and YRAM regions */
diff --git a/include/gint/mpu/intc.h b/include/gint/mpu/intc.h
index 87a0844..7ccb06a 100644
--- a/include/gint/mpu/intc.h
+++ b/include/gint/mpu/intc.h
@@ -298,8 +298,8 @@ typedef struct
 //---
 
 /* Provided by intc/intc.c */
-extern sh7705_intc_t SH7705_INTC;
-extern sh7305_intc_t SH7305_INTC;
+extern sh7705_intc_t const SH7705_INTC;
+extern sh7305_intc_t const SH7305_INTC;
 
 #ifdef __cplusplus
 }
diff --git a/src/fs/fs.c b/src/fs/fs.c
index 57ca51b..f5487fc 100644
--- a/src/fs/fs.c
+++ b/src/fs/fs.c
@@ -2,13 +2,14 @@
 #include <gint/defs/attributes.h>
 #include <unistd.h>
 #include <errno.h>
+#include <stdlib.h>
 
 /* File descriptor table */
-static fs_descriptor_t fdtable[FS_FD_MAX] = { 0 };
+static fs_descriptor_t *fdtable;
 
 fs_descriptor_t const *fs_get_descriptor(int fd)
 {
-	if((unsigned)fd >= FS_FD_MAX)
+	if(!fdtable || (unsigned)fd >= FS_FD_MAX)
 		return NULL;
 	if(fdtable[fd].type == NULL)
 		return NULL;
@@ -18,7 +19,7 @@ fs_descriptor_t const *fs_get_descriptor(int fd)
 
 int fs_create_descriptor(fs_descriptor_t const *data)
 {
-	if(data->type == NULL)
+	if(!fdtable || data->type == NULL)
 		return -1;
 
 	/* Leave 0/1/2 for stdin, stdout and stderr */
@@ -34,7 +35,7 @@ int fs_create_descriptor(fs_descriptor_t const *data)
 
 void fs_free_descriptor(int fd)
 {
-	if((unsigned)fd >= FS_FD_MAX)
+	if(!fdtable || (unsigned)fd >= FS_FD_MAX)
 		return;
 
 	fdtable[fd].type = NULL;
@@ -43,6 +44,10 @@ void fs_free_descriptor(int fd)
 
 int open_generic(fs_descriptor_type_t *type, void *data, int fd)
 {
+	if(!fdtable) {
+		errno = ENOMEM;
+		return -1;
+	}
 	if(!type) {
 		errno = EINVAL;
 		return -1;
@@ -81,8 +86,12 @@ static fs_descriptor_type_t devnull = {
 	.close  = NULL,
 };
 
-GCONSTRUCTOR static void init_standard_streams(void)
+GCONSTRUCTOR static void init_fs(void)
 {
+	fdtable = malloc(FS_FD_MAX * sizeof *fdtable);
+	if(!fdtable)
+		return;
+
 	fdtable[STDIN_FILENO].type = &devnull;
 	fdtable[STDIN_FILENO].data = NULL;
 
diff --git a/src/intc/intc.c b/src/intc/intc.c
index 677a173..10c471a 100644
--- a/src/intc/intc.c
+++ b/src/intc/intc.c
@@ -12,7 +12,7 @@
 // Interrupt controllers
 //---
 
-GDATA3 sh7705_intc_t SH7705_INTC = {
+GRODATA3 sh7705_intc_t const SH7705_INTC = {
 	.IPR = {
 		(void *)0xfffffee2, (void *)0xfffffee4,
 		(void *)0xa4000016, (void *)0xa4000018, (void *)0xa400001a,
@@ -21,7 +21,7 @@ GDATA3 sh7705_intc_t SH7705_INTC = {
 	.ICR1 = (void *)0xa4000010,
 };
 
-sh7305_intc_t SH7305_INTC = {
+sh7305_intc_t const SH7305_INTC = {
 	.IPR		= (void *)0xa4080000,
 	.MSK		= (void *)0xa4080080,
 	.MSKCLR		= (void *)0xa40800c0,