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devkitPPC: refill buffer for large reads

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This commit is contained in:
Dave Murphy 2020-06-08 20:01:52 +01:00
parent 6da9ea33f7
commit 556a2a2e02
1 changed files with 7 additions and 8 deletions
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15
dkppc/patches/newlib-3.3.0.patch
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@ -8096,7 +8096,7 @@ index 022992b8d..bdf4c7bb0 100644
fp->_flags = flags;
fp->_cookie = (void *) fp;
diff --git a/newlib/libc/stdio/fread.c b/newlib/libc/stdio/fread.c
index b358d2b4a..95493cd66 100644
index b358d2b4a..78bb0df30 100644
--- a/newlib/libc/stdio/fread.c
+++ b/newlib/libc/stdio/fread.c
@@ -187,7 +187,6 @@ _fread_r (struct _reent * ptr,
@ -8116,7 +8116,7 @@ index b358d2b4a..95493cd66 100644
resid -= fp->_r;
p += fp->_r;
fp->_r = 0;
@@ -225,7 +224,30 @@ _fread_r (struct _reent * ptr,
@@ -225,7 +224,29 @@ _fread_r (struct _reent * ptr,
/* fp->_r = 0 ... done in __srefill */
p += r;
resid -= r;
@ -8130,7 +8130,7 @@ index b358d2b4a..95493cd66 100644
+ int old_size = fp->_bf._size;
+ /* allow __refill to use user's buffer */
+ fp->_bf._base = (unsigned char *) p;
+ fp->_bf._size = resid;
+ fp->_bf._size = resid - old_size;
+ fp->_p = (unsigned char *) p;
+ rc = __srefill_r (ptr, fp);
+ /* restore fp buffering back to original state */
@ -8139,12 +8139,11 @@ index b358d2b4a..95493cd66 100644
+ fp->_p = old_base;
+ resid -= fp->_r;
+ p += fp->_r;
+ fp->_r = 0;
+
+ } else {
+ rc = __srefill_r (ptr, fp);
+ //fp->_r = 0;
+ }
+ if (rc)
+ rc = __srefill_r (ptr, fp);
+
+ if (rc)
{
/* no more input: return partial result */
#ifdef __SCLE