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v.depgraph: ensure v -d debug_realloc -o v cmd/v works

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This commit is contained in:
Delyan Angelov
2021-03-14 16:12:18 +02:00
parent db152868c0
commit b6d089b605
3 changed files with 19 additions and 12 deletions
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8
vlib/builtin/builtin.c.v
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@@ -230,7 +230,8 @@ pub fn realloc_data(old_data byteptr, old_size int, new_size int) byteptr {
$if prealloc {
unsafe {
new_ptr := malloc(new_size)
C.memcpy(new_ptr, old_data, old_size)
min_size := if old_size < new_size { old_size } else { new_size }
C.memcpy(new_ptr, old_data, min_size)
return new_ptr
}
}
@@ -245,7 +246,8 @@ pub fn realloc_data(old_data byteptr, old_size int, new_size int) byteptr {
// it will point to memory that is now filled with 0x57.
unsafe {
new_ptr := malloc(new_size)
C.memcpy(new_ptr, old_data, old_size)
min_size := if old_size < new_size { old_size } else { new_size }
C.memcpy(new_ptr, old_data, min_size)
C.memset(old_data, 0x57, old_size)
C.free(old_data)
return new_ptr
@@ -253,7 +255,7 @@ pub fn realloc_data(old_data byteptr, old_size int, new_size int) byteptr {
}
nptr := unsafe { C.realloc(old_data, new_size) }
if nptr == 0 {
panic('realloc_data($new_size) failed')
panic('realloc_data($old_data, $old_size, $new_size) failed')
}
return nptr
}