Changeset 635 for trunk/kernel/libk/elf.c

Timestamp:

Jun 26, 2019, 11:42:37 AM (5 years ago)

Author:

alain

Message:

This version is a major evolution: The physical memory allocators,
defined in the kmem.c, ppm.c, and kcm.c files have been modified
to support remote accesses. The RPCs that were previously user
to allocate physical memory in a remote cluster have been removed.
This has been done to cure a dead-lock in case of concurrent page-faults.

This version 2.2 has been tested on a (4 clusters / 2 cores per cluster)
TSAR architecture, for both the "sort" and the "fft" applications.

File:

• trunk/kernel/libk/elf.c (modified) (3 diffs)

trunk/kernel/libk/elf.c

@@ -2 +2 @@
  * elf.c - elf parser: find and map process CODE and DATA segments
  *
- * Authors   Alain Greiner    (2016)
+ * Authors   Alain Greiner    (2016,2017,2018,2019)
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -201 +201 @@
 printk("\n[%s] thread[%x,%x] found %s vseg / base %x / size %x\n"
 "  file_size %x / file_offset %x / mapper_xp %l / cycle %d\n",
-__FUNCTION__ , this->process_pid, this->trdid, 
+__FUNCTION__ , this->process->pid, this->trdid, 
 vseg_type_str(vseg->type) , vseg->min , vseg->max - vseg->min ,
-vseg->file_size , vseg->file_offset , vseg->mapper_xp );
+vseg->file_size , vseg->file_offset , vseg->mapper_xp, cycle );
 #endif
 
@@ -262 +262 @@
 
         // allocate memory for segment descriptors array
-        req.type  = KMEM_GENERIC;
-        req.size  = segs_size;
+        req.type  = KMEM_KCM;
+        req.order = bits_log2(segs_size);
         req.flags = AF_KERNEL;
         segs_base = kmem_alloc( &req );