gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

make brk region just follow data region

Browse Source 
This effectively reverts commit d70dd2338c.
This commit is contained in:
NAKAMURA Gou
2015-02-17 18:09:10 +09:00
parent 16af976a71
commit bb137bc9bb
1 changed files with 0 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
kernel/host.c
View File

@ -174,23 +174,8 @@ int prepare_process_ranges_args_envs(struct process *proc,
pn->entry);
}
#if 1
/*
Fix for the problem where brk grows to hit .bss section
when using dynamically linked executables.
Test code resides in /home/takagi/project/mpich/src/brk_icc_mic.
This is because when using
ld.so (i.e. using shared objects), mckernel/kernel/host.c sets "brk" to
the end of .bss of ld.so (e.g. 0x21f000), and then ld.so places a
main-program after this (e.g. 0x400000), so "brk" will hit .bss
eventually.
*/
proc->vm->region.brk_start = proc->vm->region.brk_end =
(USER_END / 4) & LARGE_PAGE_MASK;
#else
proc->vm->region.brk_start = proc->vm->region.brk_end =
proc->vm->region.data_end;
#endif
/* Map, copy and update args and envs */
flags = VR_PROT_READ | VR_PROT_WRITE;