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commpage: randomize position of commpage

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This patch introduces randomization of commpage position. From now on commpage
table contains offsets from begining to of the commpage to the particular
commpage entry. Similary addresses of symbols in ELF memory image "commpage"
are just offsets from the begining of the commpage.

This patch also updates KDL so that commpage entries are recognized and shown
correctly in stack trace. An update of Debugger is yet to be done.
This commit is contained in:
Pawel Dziepak
2013-04-04 15:27:22 +02:00
parent 966f207668
commit e85e399fd7
35 changed files with 158 additions and 96 deletions
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headers/private/kernel/commpage.h
+2 -1
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@@ -18,8 +18,9 @@ extern "C" {
status_t commpage_init(void);
status_t commpage_init_post_cpus(void);
void* allocate_commpage_entry(int entry, size_t size);
void* fill_commpage_entry(int entry, const void* copyFrom, size_t size);
addr_t fill_commpage_entry(int entry, const void* copyFrom, size_t size);
image_id get_commpage_image();
area_id clone_commpage_area(team_id team, void** address);
// implemented in the architecture specific part
status_t arch_commpage_init(void);