mmap failed, when offset is physical address

[zero-zhaowei]

used tcmalloc lib with hisi32bit platform, i need mmap an address and offset param is physical address(0x9240a000), but mmap failed.

static void* do_sys_mmap(long sysnr, void* start, size_t length, int prot, int flags, int fd, long offset)， i think offset param type should be unsigned long .

signed type will lost Precision .

[zero-zhaowei]

i changed long offset to unsigned ,mmap succeed.

[junyer]

do_sys_mmap() does not exist in this ~dojo~ repo, does it? It does exist in https://github.com/gperftools/gperftools, which is where you will need to (re)file your issue.

[zero-zhaowei]

ok，thanks