Good morning, We are trying to figure out how to properly provide adresss
hints to mmap on 32-bit Centos 5.5. Does any documentation exist about to how
to provide address hints to mmap on 32-bit Centos 5.5? If so, where can we find
this documentation.
In order to understand mmap better, we decided to try to find the Centos
5.5 source code for mmap.c. We already installed the kernel source code using
the following commands : # cd /tmp
# wget
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-8.1.8.el5.src.rpm
# rpm -ivh kernel-2.6.18-8.1.8.el5.src.rpm
However, we can't find the source code for the functions: void *mmap(void
*start, size_t length, int prot, int flags, int fd, off_t offset);
and
int munmap(void *start, size_t length); Where could we obtain the source code
for the system function: void *mmap(void *start, size_t length, int prot, int
flags, int fd, off_t offset)? Thank you.
We have already run the following commands $ su
# vi /etc/sysctl.conf
...and append
vm.vdso_enabled = 0
vm.mmap_min_addr = 4096
#
# /sbin/sysctl -p
...
vm.vdso_enabled = 0
vm.mmap_min_addr = 4096
# exit
Thank you.
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