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November 2020

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Brendan Shanks : dbghelp: Use PEB->CloudFileFlags instead of PEB->Reserved for debug base address.
by Alexandre Julliard 02 Nov '20

02 Nov '20

Module: wine Branch: master Commit: f40195cd9206872388d01e72db92ddf6b3140f6d URL: https://source.winehq.org/git/wine.git/?a=commit;h=f40195cd9206872388d01e72… Author: Brendan Shanks <bshanks(a)codeweavers.com> Date: Fri Oct 30 08:17:15 2020 -0700 dbghelp: Use PEB->CloudFileFlags instead of PEB->Reserved for debug base address. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=50077 Signed-off-by: Brendan Shanks <bshanks(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/dbghelp/dbghelp.c | 4 ++-- dlls/ntdll/unix/virtual.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/dlls/dbghelp/dbghelp.c b/dlls/dbghelp/dbghelp.c index 9d33bc67f2b..e38687412eb 100644 --- a/dlls/dbghelp/dbghelp.c +++ b/dlls/dbghelp/dbghelp.c @@ -304,14 +304,14 @@ static BOOL check_live_target(struct process* pcs) PEB32 peb32; C_ASSERT(sizeof(void*) != 4 || FIELD_OFFSET(RTL_USER_PROCESS_PARAMETERS, Environment) == 0x48); if (!ReadProcessMemory(pcs->handle, pbi.PebBaseAddress, &peb32, sizeof(peb32), NULL)) return FALSE; - base = peb32.Reserved[0]; + if (!ReadProcessMemory(pcs->handle, (char *)pbi.PebBaseAddress + 0x460 /* CloudFileFlags */, &base, sizeof(base), NULL)) return FALSE; if (read_process_memory(pcs, peb32.ProcessParameters + 0x48, &env32, sizeof(env32))) env = env32; } else { PEB peb; if (!ReadProcessMemory(pcs->handle, pbi.PebBaseAddress, &peb, sizeof(peb), NULL)) return FALSE; - base = peb.Reserved[0]; + if (!ReadProcessMemory(pcs->handle, &peb.CloudFileFlags, &base, sizeof(base), NULL)) return FALSE; ReadProcessMemory(pcs->handle, &peb.ProcessParameters->Environment, &env, sizeof(env), NULL); } diff --git a/dlls/ntdll/unix/virtual.c b/dlls/ntdll/unix/virtual.c index 614159b7d90..853eb0469b9 100644 --- a/dlls/ntdll/unix/virtual.c +++ b/dlls/ntdll/unix/virtual.c @@ -2591,7 +2591,7 @@ TEB *virtual_alloc_first_teb(void) NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&ptr, 0, &block_size, MEM_COMMIT, PAGE_READWRITE ); NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&peb, 0, &peb_size, MEM_COMMIT, PAGE_READWRITE ); init_teb( teb, peb ); - *(ULONG_PTR *)peb->Reserved = get_image_address(); + *(ULONG_PTR *)&peb->CloudFileFlags = get_image_address(); return teb; }

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