Some applications like keydb that use jmalloc, call sbrk()
on startup even though later fall back to mmap().
So this patch provides simple stubs of those 2 functions
that set errno to ENOMEM and return error.
Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com>
---
libc/mman.cc | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/libc/mman.cc b/libc/mman.cc
index add8ef15..895b9b28 100644
--- a/libc/mman.cc
+++ b/libc/mman.cc
@@ -13,6 +13,7 @@
#include "osv/trace.hh"
#include "osv/dentry.h"
#include "osv/mount.h"
+#include <osv/stubbing.hh>
#include "libc/libc.hh"
#include <safe-ptr.hh>
@@ -234,3 +235,17 @@ int madvise(void *addr, size_t length, int advice)
auto err = mmu::advise(addr, length, libc_madvise_to_advise(advice));
return err.to_libc();
}
+
+int brk(void *addr)
+{
+ WARN_STUBBED();
+ errno = ENOMEM;
+ return -1;
+}
+
+void *sbrk(intptr_t increment)
+{
+ WARN_STUBBED();
+ errno = ENOMEM;
+ return (void *)-1;
+}
--
2.30.2
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