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* [gcc/devel/omp/gcc-12] In 'libgomp/allocator.c:omp_realloc', route 'free' through 'MEMSPACE_FREE'
@ 2023-02-16 21:42 Thomas Schwinge
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From: Thomas Schwinge @ 2023-02-16 21:42 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:3a2c07395b0a565955a7b86f0eba866937e15989
commit 3a2c07395b0a565955a7b86f0eba866937e15989
Author: Thomas Schwinge <thomas@codesourcery.com>
Date: Tue Feb 14 13:35:03 2023 +0100
In 'libgomp/allocator.c:omp_realloc', route 'free' through 'MEMSPACE_FREE'
... to not run into a SIGSEGV if a non-'malloc'-based allocation is 'free'd
here.
Fix-up for og12 commit c5d1d7651297a273321154a5fe1b01eba9dcf604
"libgomp, nvptx: low-latency memory allocator".
libgomp/
* allocator.c (omp_realloc): Route 'free' through 'MEMSPACE_FREE'.
Diff:
---
libgomp/ChangeLog.omp | 2 ++
libgomp/allocator.c | 12 +++++++++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/libgomp/ChangeLog.omp b/libgomp/ChangeLog.omp
index 530f5c6acf6..819a5333907 100644
--- a/libgomp/ChangeLog.omp
+++ b/libgomp/ChangeLog.omp
@@ -1,5 +1,7 @@
2023-02-16 Thomas Schwinge <thomas@codesourcery.com>
+ * allocator.c (omp_realloc): Route 'free' through 'MEMSPACE_FREE'.
+
* config/linux/allocator.c (linux_memspace_alloc)
(linux_memspace_calloc): Clarify zero-initialization for pinned
memory.
diff --git a/libgomp/allocator.c b/libgomp/allocator.c
index 05b323d458e..ba9a4e17cc2 100644
--- a/libgomp/allocator.c
+++ b/libgomp/allocator.c
@@ -854,7 +854,17 @@ retry:
gomp_mutex_unlock (&free_allocator_data->lock);
#endif
}
- free (data->ptr);
+ {
+ omp_memspace_handle_t was_memspace __attribute__((unused))
+ = (free_allocator_data
+ ? free_allocator_data->memspace
+ : predefined_alloc_mapping[free_allocator]);
+ int was_pinned __attribute__((unused))
+ = (free_allocator_data
+ ? free_allocator_data->pinned
+ : free_allocator == ompx_pinned_mem_alloc);
+ MEMSPACE_FREE (was_memspace, data->ptr, data->size, was_pinned);
+ }
return ret;
fail:
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