Rafi Gordon wrote:
Hello,
Processes can change their Local Descriptor Table using
modify_ldt() system called.
see "man modify_ldt" or :
(for x386 look at include/asm-i386/unistd.h:
#define __NR_modify_ldt 123)
However, usually there is no need to manipulate the LDT
with this system call.
I saw in wine a call to modify_ldt() (libs/wine/ldt.c)
I was wondering in which occasions is this
system call being invoked: did anybody had encountered (or used himeslf)
a call to modify_ldt() in other apps (emulators maybe ? ).
If memory serves me right the old LinuxThreads threading library used
modify_ldt on x86 to create thread local variables in the absense of TLS
(The Thread Local Storage kind, not the encryption scheme) that NPTL
relies on.
Gilad
--
Gilad Ben-Yossef <[EMAIL PROTECTED]>
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