Put the RSE backing store at a fixed address. This change is triggered
by libguile that needs to know the base of the RSE backing store. We currently do not export the fixed address to userland by means of a sysctl so user code needs to hardcode it for now. This will be revisited later. The RSE backing store is now at the bottom of region 4. The memory stack is at the top of region 4. This means that the whole region is usable for the stacks, giving a 61-bit stack space. Port: lang/guile (depended of x11/gnome2)
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=121268
@ -144,6 +144,8 @@
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#define IA64_ID_PAGE_SIZE (1<<(LOG2_ID_PAGE_SIZE))
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#define IA64_ID_PAGE_MASK (IA64_ID_PAGE_SIZE-1)
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#define IA64_BACKINGSTORE IA64_RR_BASE(4)
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/*
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* Mach derived constants
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*/
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@ -868,7 +868,7 @@ exec_new_vmspace(imgp, sv)
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#ifdef __ia64__
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/* Allocate a new register stack */
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stack_addr = sv->sv_usrstack - 2 * maxssiz;
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stack_addr = IA64_BACKINGSTORE;
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error = vm_map_stack(map, stack_addr, (vm_size_t)maxssiz,
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sv->sv_stackprot, VM_PROT_ALL, MAP_STACK_GROWS_UP);
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if (error)
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