5148

Snapshot of incomplete work to have the memory allocator use `mmap` rather
than `brk`. C tests pass, but the SubX layers are still broken.

1 files changed, 7 insertions, 9 deletions

diff --git a/subx/012elf.cc b/subx/012elf.cc
index 0f058504..6a31826e 100644
--- a/subx/012elf.cc
+++ b/subx/012elf.cc
@@ -129,15 +129,13 @@ void load_segment_from_program_header(uint8_t* elf_contents, int segment_index,
 }
 
 :(before "End Includes")
-// Very primitive/fixed/insecure ELF segments for now: just consecutive VMAs.
-//   code: 0x09000000 -> 0x09ffffff
-//   data/heap: 0x0a000000 -> 0x0affffff
-//   stack: 0x0b000ffc -> 0x0b000000 (downward)
-const int CODE_SEGMENT = 0x09000000;
-const int DATA_SEGMENT = 0x0a000000;  // keep sync'd with `Heap.limit` in allocate.subx
-const int STACK_SEGMENT = 0x0b000000;
-const int AFTER_STACK = 0x0c000000;
-const int ARGV_DATA_SEGMENT = 0x0c000000;
+// Very primitive/fixed/insecure ELF segments for now.
+//   code:  0x09000000 -> 0x09ffffff
+//   stack: 0xbe000000 -> 0xb0000000 (downward)
+const int CODE_SEGMENT      = 0x09000000;
+const int STACK_SEGMENT     = 0xb0000000;
+const int AFTER_STACK       = 0xbe000000;
+const int ARGV_DATA_SEGMENT = 0xbf000000;
 :(before "End Dump Info for Instruction")
 //? dump_stack();  // slow
 :(code)