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--- src/ucm/util/replace.c.orig 2026-02-04 09:52:46 UTC
+++ src/ucm/util/replace.c
@@ -55,8 +55,10 @@ UCM_DEFINE_REPLACE_FUNC(shmdt, int, -1, co
#endif
UCM_DEFINE_REPLACE_FUNC(shmat, void*, MAP_FAILED, int, const void*, int)
UCM_DEFINE_REPLACE_FUNC(shmdt, int, -1, const void*)
+#ifdef HAVE_BRK_SBRK
UCM_DEFINE_REPLACE_FUNC(sbrk, void*, MAP_FAILED, intptr_t)
UCM_DEFINE_REPLACE_FUNC(brk, int, -1, void*)
+#endif
UCM_DEFINE_REPLACE_FUNC(madvise, int, -1, void*, size_t, int)
UCM_DEFINE_SELECT_FUNC(mmap, void*, SYS_mmap, void*, size_t, int, int, int,
@@ -122,6 +124,7 @@ int ucm_orig_shmdt(const void *shmaddr)
#endif
+#ifdef HAVE_BRK_SBRK
_UCM_DEFINE_DLSYM_FUNC(brk, ucm_orig_dlsym_brk, ucm_override_brk, int, void*)
int ucm_orig_brk(void *addr)
@@ -156,7 +159,32 @@ void *ucm_orig_sbrk(intptr_t increment)
(void*)-1 : prev;
}
}
+#else
+int ucm_orig_brk(void *addr)
+{
+ (void)addr;
+ errno = ENOSYS;
+ return -1;
+}
+void *ucm_orig_sbrk(intptr_t increment)
+{
+ (void)increment;
+ errno = ENOSYS;
+ return MAP_FAILED;
+}
+
+int ucm_override_brk(void *addr)
+{
+ return ucm_orig_brk(addr);
+}
+
+void *ucm_override_sbrk(intptr_t increment)
+{
+ return ucm_orig_sbrk(increment);
+}
+#endif
+
#else /* UCM_BISTRO_HOOKS */
UCM_DEFINE_DLSYM_FUNC(brk, int, void*)
@@ -168,9 +196,13 @@ void *ucm_get_current_brk()
void *ucm_get_current_brk()
{
+#ifdef HAVE_BRK_SBRK
#if HAVE___CURBRK
return __curbrk;
#else
return ucm_brk_syscall(0);
+#endif
+#else
+ return NULL;
#endif
}
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