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* [gcc r11-7832] libstdc++: Declare malloc for freestanding
@ 2021-03-25 18:25 Jonathan Wakely
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From: Jonathan Wakely @ 2021-03-25 18:25 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:15d649f79d6b6dc336f6a32eec242b652a262a82
commit r11-7832-g15d649f79d6b6dc336f6a32eec242b652a262a82
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Thu Mar 25 18:24:37 2021 +0000
libstdc++: Declare malloc for freestanding
For a target with none of aligned_alloc, memalign etc. we defined our
own aligned_alloc using malloc, so we need a declaration of malloc. As
in libsupc++/new_op.cc we need to declare it ourselves for freestanding
environments.
libstdc++-v3/ChangeLog:
* libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare malloc.
Diff:
---
libstdc++-v3/libsupc++/new_opa.cc | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libstdc++-v3/libsupc++/new_opa.cc b/libstdc++-v3/libsupc++/new_opa.cc
index 59296226e83..6b78729dc24 100644
--- a/libstdc++-v3/libsupc++/new_opa.cc
+++ b/libstdc++-v3/libsupc++/new_opa.cc
@@ -54,6 +54,10 @@ extern "C"
void *posix_memalign(void **, size_t alignment, size_t size);
# elif _GLIBCXX_HAVE_MEMALIGN
void *memalign(size_t alignment, size_t size);
+# else
+ // A freestanding C runtime may not provide "malloc" -- but there is no
+ // other reasonable way to implement "operator new".
+ void *malloc(size_t);
# endif
}
#endif
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