From e601d5d707eb7c9ffdcb67772de224d84a1b960c Mon Sep 17 00:00:00 2001
From: viktorxda <35473052+viktorxda@users.noreply.github.com>
Date: Sat, 25 May 2024 00:39:05 +0200
Subject: [PATCH] Add mmap64 command

---
 src/Makefile      | 2 +-
 src/compat.c      | 9 +++++----
 src/hal/support.c | 6 ++----
 src/hal/support.h | 4 +++-
 4 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index 70876b7..3ec3149 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,4 +1,4 @@
 SRC := $(shell find ./ -name '*.c')
 
 divinus:
-	$(CC) $(SRC) -I src -rdynamic -Wl,--wrap=mmap $(OPT) -o ../$@
\ No newline at end of file
+	$(CC) $(SRC) -I src -rdynamic $(OPT) -o ../$@
diff --git a/src/compat.c b/src/compat.c
index 4b73294..c830bc3 100644
--- a/src/compat.c
+++ b/src/compat.c
@@ -16,9 +16,10 @@ float __expf_finite(float x) { return expf(x); }
 int __fgetc_unlocked(FILE *stream) { return fgetc(stream); }
 double __log_finite(double x) { return log(x); }
 
-void* mmap(void *start, size_t len, int prot, int flags, int fd, uint32_t off) {
+void *mmap(void *start, size_t len, int prot, int flags, int fd, uint32_t off) {
+    return (void*)syscall(SYS_mmap2, start, len, prot, flags, fd, off >> 12);
+}
+
+void *mmap64(void *start, size_t len, int prot, int flags, int fd, off_t off) {
     return (void*)syscall(SYS_mmap2, start, len, prot, flags, fd, off >> 12);
 }
-void* __wrap_mmap(void *start, size_t len, int prot, int flags, int fd, uint32_t off) {
-    return mmap(start, len, prot, flags, fd, off);
-}
\ No newline at end of file
diff --git a/src/hal/support.c b/src/hal/support.c
index c50a2df..270ef9f 100644
--- a/src/hal/support.c
+++ b/src/hal/support.c
@@ -1,7 +1,5 @@
 #include "support.h"
 
-extern void* __real_mmap();
-
 void *isp_thread = NULL;
 void *venc_thread = NULL;
 
@@ -34,7 +32,7 @@ bool hal_registry(unsigned int addr, unsigned int *data, hal_register_op op) {
 
     volatile char *mapped_area;
     if (offset != loaded_offset) {
-        mapped_area = __real_mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, mem_fd, offset);
+        mapped_area = mmap64(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, mem_fd, offset);
         if (mapped_area == MAP_FAILED) {
             fprintf(stderr, "hal_registry mmap error: %s (%d)\n",
                     strerror(errno), errno);
@@ -116,4 +114,4 @@ void hal_identify(void) {
     chnState = (hal_chnstate*)v4_state;
     isp_thread = v4_image_thread;
     venc_thread = v4_video_thread;
-}
\ No newline at end of file
+}
diff --git a/src/hal/support.h b/src/hal/support.h
index a322b1b..8a1ecc8 100644
--- a/src/hal/support.h
+++ b/src/hal/support.h
@@ -33,4 +33,6 @@ extern void *i6f_encoder_thread(void);
 extern hal_chnstate i6f_state[I6F_VENC_CHN_NUM];
 
 bool hal_registry(unsigned int addr, unsigned int *data, hal_register_op op);
-void hal_identify(void);
\ No newline at end of file
+void hal_identify(void);
+
+void *mmap64(void *start, size_t len, int prot, int flags, int fd, off_t off);