devmem2: fix output when _FILE_OFFSET_BITS=64

When built with _FILE_OFFSET_BITS=64, off_t becomes an long long int
and was printed as an unsigned int which lead to a garbled output.

Signed-off-by: Colin Didier <colin.didier@devialet.com>
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@devialet.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/devmem2/devmem2-0001-be-coherent-in-type-usage.patch b/package/devmem2/devmem2-0001-be-coherent-in-type-usage.patch
new file mode 100644 (file)
index 0000000..541ac6e
--- /dev/null
+++ b/package/devmem2/devmem2-0001-be-coherent-in-type-usage.patch
@@ -0,0 +1,49 @@
+From 15eae3dbb3d6824a0fd478e2ce0fe879496bb72c Mon Sep 17 00:00:00 2001
+From: Colin Didier <colin.didier@devialet.com>
+Date: Thu, 19 Jun 2014 16:58:19 +0200
+Subject: [PATCH] be coherent in type usage
+
+- no need to use off_t because it is read from strtoul()
+- print unsigned int type correctly
+
+When built with _FILE_OFFSET_BITS=64, off_t becomes an long long int
+and was printed as an unsigned int which lead to a garbled output.
+
+Signed-off-by: Colin Didier <colin.didier@devialet.com>
+---
+ devmem2.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/devmem2.c b/devmem2.c
+index 7732ecb..1ae06ef 100644
+--- a/devmem2.c
++++ b/devmem2.c
+@@ -58,8 +58,7 @@
+ int main(int argc, char **argv) {
+     int fd;
+     void *map_base, *virt_addr;
+-      unsigned long read_result, writeval;
+-      off_t target;
++      unsigned long target, read_result, writeval;
+       int access_type = 'w';
+
+       if(argc < 2) {
+@@ -101,7 +100,7 @@ int main(int argc, char **argv) {
+                       fprintf(stderr, "Illegal data type '%c'.\n", access_type);
+                       exit(2);
+       }
+-    printf("Value at address 0x%X (%p): 0x%X\n", target, virt_addr, read_result);
++    printf("Value at address 0x%lX (%p): 0x%lX\n", target, virt_addr, read_result);
+     fflush(stdout);
+
+       if(argc > 3) {
+@@ -120,7 +119,7 @@ int main(int argc, char **argv) {
+                               read_result = *((unsigned long *) virt_addr);
+                               break;
+               }
+-              printf("Written 0x%X; readback 0x%X\n", writeval, read_result);
++              printf("Written 0x%lX; readback 0x%lX\n", writeval, read_result);
+               fflush(stdout);
+       }
+
+--