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Commit 4e4847dd authored by Paul Gofman's avatar Paul Gofman Committed by Alexandre Julliard
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ntdll/tests: Do not write to fs, gs when testing cleared segment regs on x64.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51152Signed-off-by: 's avatarPaul Gofman <pgofman@codeweavers.com> Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent 77229153
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dlls/ntdll/tests/exception.c
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...@@ -2906,13 +2906,30 @@ static const struct exception ...@@ -2906,13 +2906,30 @@ static const struct exception
0x31, 0xc0, /* xor %eax,%eax */ 0x31, 0xc0, /* xor %eax,%eax */
0x8e, 0xc0, /* mov %eax,%es */ 0x8e, 0xc0, /* mov %eax,%es */
0x8e, 0xd8, /* mov %eax,%ds */ 0x8e, 0xd8, /* mov %eax,%ds */
#if 0
/* It is observed that fs/gs base is reset
on some CPUs when setting the segment value
even to 0 (regardless of CPU spec
saying otherwise) and it is not currently
handled in Wine.
Disable this part to avoid crashing the test. */
0x8e, 0xe0, /* mov %eax,%fs */ 0x8e, 0xe0, /* mov %eax,%fs */
0x8e, 0xe8, /* mov %eax,%gs */ 0x8e, 0xe8, /* mov %eax,%gs */
#else
0x90, 0x90, /* nop */
0x90, 0x90, /* nop */
#endif
0xfa, /* cli */ 0xfa, /* cli */
0x58, /* pop %rax */ 0x58, /* pop %rax */
#if 0
0x8e, 0xe8, /* mov %eax,%gs */ 0x8e, 0xe8, /* mov %eax,%gs */
0x58, /* pop %rax */ 0x58, /* pop %rax */
0x8e, 0xe0, /* mov %eax,%fs */ 0x8e, 0xe0, /* mov %eax,%fs */
#else
0x58, /* pop %rax */
0x90, 0x90, /* nop */
0x90, 0x90, /* nop */
#endif
0x58, /* pop %rax */ 0x58, /* pop %rax */
0x8e, 0xd8, /* mov %eax,%ds */ 0x8e, 0xd8, /* mov %eax,%ds */
0x58, /* pop %rax */ 0x58, /* pop %rax */
......
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