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Fixing memory_patcher recursive mmap calls. #9252

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Fixing memory_patcher recursive mmap calls. #9252

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9 changes: 7 additions & 2 deletions opal/mca/memory/patcher/memory_patcher_component.c
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Original file line number Diff line number Diff line change
Expand Up @@ -168,8 +168,13 @@ static void *_intercept_mmap(void *start, size_t length, int prot, int flags, in
}

if (!original_mmap) {
result = (void *) (intptr_t) memory_patcher_syscall(SYS_mmap, start, length, prot, flags,
fd, offset);
/* On RHEL8.1 (glibc-2.28-72.el8.ppc64le) __mmap became a global 'T' symbol, yet was the same address as mmap. Don't recall it! */
if (__mmap != mmap ) {
/* the darwin syscall returns an int not a long so call the underlying __mmap function */
result = __mmap (start, length, prot, flags, fd, offset);
} else {
result = (void*)(intptr_t) memory_patcher_syscall(SYS_mmap, start, length, prot, flags, fd, offset);
}
} else {
result = original_mmap(start, length, prot, flags, fd, offset);
}
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