From 950ae0b2a41603c262e4079b2478f1d0932132f4 Mon Sep 17 00:00:00 2001
From: plutoo <plutoo@univor.se>
Date: Mon, 27 Oct 2014 00:07:07 +0100
Subject: [PATCH] Added svcQueryMemory

---
 libctru/include/3ds/svc.h | 13 +++++++++++++
 libctru/source/svc.s      | 16 ++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/libctru/include/3ds/svc.h b/libctru/include/3ds/svc.h
index 402194d..ab1d1c3 100644
--- a/libctru/include/3ds/svc.h
+++ b/libctru/include/3ds/svc.h
@@ -23,9 +23,22 @@ typedef enum {
 	MEMPERM_MAX    =0xFFFFFFFF //force 4-byte
 } MemPerm;
 
+typedef struct {
+    u32 base_addr;
+    u32 size;
+    u32 perm;
+    u32 state;
+} MemInfo;
+
+typedef struct {
+    u32 flags;
+} PageInfo;
+
+
 u32* getThreadCommandBuffer(void);
 
 s32  svcControlMemory(u32* addr_out, u32 addr0, u32 addr1, u32 size, MemOp op, MemPerm perm);
+s32  svcQueryMemory(MemInfo* info, PageInfo* out, u32 addr);
 void __attribute__((noreturn)) svcExitProcess();
 s32  svcCreateThread(Handle* thread, ThreadFunc entrypoint, u32 arg, u32* stack_top, s32 thread_priority, s32 processor_id);
 void __attribute__((noreturn)) svcExitThread();
diff --git a/libctru/source/svc.s b/libctru/source/svc.s
index 1969ddc..2d777ad 100644
--- a/libctru/source/svc.s
+++ b/libctru/source/svc.s
@@ -22,6 +22,22 @@ svcControlMemory:
 	ldr r4, [sp], #4
 	bx lr
 
+.global svcQueryMemory
+.type svcQueryMemory, %function
+svcQueryMemory:
+	stmfd           sp!, {r0,r1,r4-r6}
+	svc             2
+	ldr             r6, [sp]
+	str             r1, [r6]
+	str             r2, [r6,#4]
+	str             r3, [r6,#8]
+	str             r4, [r6,#0xc]
+	ldr             r6, [sp,#4]
+	str             r5, [r6]
+	add             sp, sp, #8
+	ldmfd           sp!, {r4-r6}
+	bx              lr
+
 .global svcExitProcess
 .type svcExitProcess, %function
 svcExitProcess: