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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-07-23 20:26:01 +0530 |
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| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-07-23 20:27:10 +0530 |
| commit | d34ed66f96fa9316654d7adb2afcce4be1d1c4f5 (patch) | |
| tree | bfc2e55ae280c08bfa5a5990dd5cc1e2e4c071ce | |
| parent | 7c124e3714c38157230ed1a5d743b37defe64dc2 (diff) | |
| download | glibc-d34ed66f96fa9316654d7adb2afcce4be1d1c4f5.tar.gz glibc-d34ed66f96fa9316654d7adb2afcce4be1d1c4f5.tar.xz glibc-d34ed66f96fa9316654d7adb2afcce4be1d1c4f5.zip | |
manual: Document unsupported cases for interposition
These functions call the core allocator functions (realloc and malloc respectively) and are hence guaranteed to allocate memory using the correct functions when multiple allocators are interposed. Having these functions interposed in one allocator and not another may result in confusion, hence discourage interposing them altogether. Reviewed-by: Florian Weimer <fweimer@redhat.com>
| -rw-r--r-- | manual/memory.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/manual/memory.texi b/manual/memory.texi index 69c8894602..a51ed42516 100644 --- a/manual/memory.texi +++ b/manual/memory.texi @@ -1864,6 +1864,13 @@ when a replacement @code{malloc} is in use. However, failure to replace these functions typically does not result in crashes or other incorrect application behavior, but may result in static linking failures. +There are other functions (@code{reallocarray}, @code{strdup}, etc.) in +@theglibc{} that are not listed above but return newly allocated memory to +callers. Replacement of these functions is not supported and may produce +incorrect results. @Theglibc{} implementations of these functions call +the replacement allocator functions whenever available, so they will work +correctly with @code{malloc} replacement. + @node Obstacks @subsection Obstacks @cindex obstacks |