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Refactor memory management into wibo::heap

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- Removes blockUpper2GB hack; we now start early in the process
  and reserve all (available) space in the lower 2GB address
  space, leaving the upper 2GB untouched for host code
- All virtual memory operations flow through wibo::heap for
  bookkeeping
- All guest code uses a guest mimalloc area + thread-local heaps
  reserved in the guest address space
This commit is contained in:
Luke Street
2025-11-02 20:18:23 -07:00
parent 52cdd7c811
commit 4dc599381f
23 changed files with 1558 additions and 753 deletions
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5
dll/kernel32/processenv.cpp
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@@ -3,6 +3,7 @@
#include "context.h"
#include "errors.h"
#include "files.h"
#include "heap.h"
#include "internal.h"
#include "strutil.h"
@@ -78,7 +79,7 @@ LPCH WINAPI GetEnvironmentStrings() {
}
bufSize++;
char *buffer = static_cast<char *>(mi_malloc(bufSize));
char *buffer = static_cast<char *>(wibo::heap::guestMalloc(bufSize));
if (!buffer) {
setLastError(ERROR_NOT_ENOUGH_MEMORY);
return nullptr;
@@ -111,7 +112,7 @@ LPWCH WINAPI GetEnvironmentStringsW() {
}
bufSizeW++;
uint16_t *buffer = static_cast<uint16_t *>(mi_malloc(bufSizeW * sizeof(uint16_t)));
uint16_t *buffer = static_cast<uint16_t *>(wibo::heap::guestMalloc(bufSizeW * sizeof(uint16_t)));
if (!buffer) {
setLastError(ERROR_NOT_ENOUGH_MEMORY);
return nullptr;