[PATCH 0/1] MR7754: ntdll: Fix build on platforms without getauxval

[Gerald Pfeifer (＠gerald)]

Commit b1b5105ceb moved the following block

    #ifdef AT_HWCAP2
             if (getauxval( AT_HWCAP2 ) & 2) syscall_flags |= SYSCALL_HAVE_WRFSGSBASE;
    #endif

out of an #ifdef __linux__ block and it now causes failures on FreeBSD
and others which do not have getauxval. Guard this invocation properly.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7754

[PATCH 1/1] ntdll: Fix build on platforms without getauxval

[Gerald Pfeifer]

From: Gerald Pfeifer <gerald(a)pfeifer.com>

Commit b1b5105ceb moved the following block

    #ifdef AT_HWCAP2
             if (getauxval( AT_HWCAP2 ) & 2) syscall_flags |= SYSCALL_HAVE_WRFSGSBASE;
    #endif

out of an #ifdef __linux__ block and it now causes failures on FreeBSD
and others which do not have getauxval. Guard this invocation properly.
---
 dlls/ntdll/unix/signal_x86_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ntdll/unix/signal_x86_64.c b/dlls/ntdll/unix/signal_x86_64.c
index fb5259d8714..4d397ac01db 100644
--- a/dlls/ntdll/unix/signal_x86_64.c
+++ b/dlls/ntdll/unix/signal_x86_64.c
@@ -2504,7 +2504,7 @@ void signal_init_process(void)
 
     if (cpu_info.ProcessorFeatureBits & CPU_FEATURE_XSAVE) syscall_flags |= SYSCALL_HAVE_XSAVE;
     if (xstate_compaction_enabled) syscall_flags |= SYSCALL_HAVE_XSAVEC;
-#ifdef AT_HWCAP2
+#if defined(HAVE_GETAUXVAL) && defined(AT_HWCAP2)
     if (getauxval( AT_HWCAP2 ) & 2) syscall_flags |= SYSCALL_HAVE_WRFSGSBASE;
 #endif
 
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/7754