Move the ILP32 mremap() hackery into legacy_32_bit_support.cpp.
Similar to mmap(), this confuses me every time I look at it. Move it out
of the way, and make it clearer that this is just junk that can be
deleted when we remove 32-bit support.
Also improve coverage by adding a test for the varargs special case.
Test: treehugger
Merged-in: Ia375c29d18e31e646b795e643534f0be07d382b9
Change-Id: Ia375c29d18e31e646b795e643534f0be07d382b9
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index ce14e49..a8c70e5 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -118,7 +118,6 @@
pid_t __getpid:getpid() all
int memfd_create(const char*, unsigned) all
int munmap(void*, size_t) all
-void* __mremap:mremap(void*, size_t, size_t, int, void*) all
int msync(const void*, size_t, int) all
int mprotect(const void*, size_t, int) all
int madvise(void*, size_t, int) all
@@ -190,6 +189,10 @@
void* __mmap2:mmap2(void*, size_t, int, int, int, long) lp32
void* mmap|mmap64(void*, size_t, int, int, int, off_t) lp64
+# mremap is in C++ for 32-bit so we can add the PTRDIFF_MAX check.
+void* __mremap:mremap(void*, size_t, size_t, int, void*) lp32
+void* mremap(void*, size_t, size_t, int, void*) lp64
+
# posix_fadvise64 is awkward: arm has shuffled arguments,
# the POSIX functions don't set errno, and no architecture has posix_fadvise.
int __arm_fadvise64_64:arm_fadvise64_64(int, int, off64_t, off64_t) arm