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preloader: Add a fallback to the old mmap syscall just in case.

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Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-05-02 20:06:25 +02:00
parent ee3f060262
commit 9f06a197c8
1 changed files with 10 additions and 3 deletions
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13
loader/preloader.c
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@ -311,9 +311,16 @@ __ASM_GLOBAL_FUNC(wld_mmap,
"\tshrl $12,%ebp\n"
"\tint $0x80\n"
"\tcmpl $-4096,%eax\n"
"\tjbe 1f\n"
"\tmovl $-1,%eax\n"
"1:\tpopl %edi\n"
"\tjbe 2f\n"
"\tcmpl $-38,%eax\n" /* ENOSYS */
"\tjne 1f\n"
"\tmovl $90,%eax\n" /* SYS_mmap */
"\tleal 20(%esp),%ebx\n"
"\tint $0x80\n"
"\tcmpl $-4096,%eax\n"
"\tjbe 2f\n"
"1:\tmovl $-1,%eax\n"
"2:\tpopl %edi\n"
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
"\tpopl %esi\n"
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")