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x86: fix required kernel version for GETREGSET

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* syscall.c (get_regs): [X86] Use GETREGSET only if kernel >= 2.6.35

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2013-02-15 00:24:19 +01:00
parent f5fa778d2f
commit e3b248dd83
1 changed files with 5 additions and 2 deletions
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7
syscall.c
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@ -914,8 +914,11 @@ void get_regs(pid_t pid)
# elif defined(I386)
get_regs_error = ptrace(PTRACE_GETREGS, pid, NULL, (long) &i386_regs);
# elif defined(X86_64) || defined(X32)
/* PTRACE_GETREGSET was introduced around 2.6.25 */
if (os_release >= KERNEL_VERSION(2,6,30)) {
/*
* PTRACE_GETREGSET was introduced in 2.6.33.
* Let's be paranoid and require a bit later kernel.
*/
if (os_release >= KERNEL_VERSION(2,6,35)) {
/*x86_io.iov_base = &x86_regs_union; - already is */
x86_io.iov_len = sizeof(x86_regs_union);
get_regs_error = ptrace(PTRACE_GETREGSET, pid, NT_PRSTATUS, (long) &x86_io);