Commit-ID: e258e4e0b495e6ecbd073d6bef1eafb62a58919a Gitweb: http://git.kernel.org/tip/e258e4e0b495e6ecbd073d6bef1eafb62a58919a Author: Brian Gerst <brgerst@xxxxxxxxx> AuthorDate: Wed, 9 Dec 2009 19:01:51 -0500 Committer: H. Peter Anvin <hpa@xxxxxxxxx> CommitDate: Wed, 9 Dec 2009 16:27:49 -0800 x86-32: Add new pt_regs stubs Add new stubs which add the pt_regs pointer as the last arg, matching 64-bit. This will allow these syscalls to be easily merged. Signed-off-by: Brian Gerst <brgerst@xxxxxxxxx> LKML-Reference: <1260403316-5679-2-git-send-email-brgerst@xxxxxxxxx> Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx> --- arch/x86/kernel/entry_32.S | 49 ++++++++++++++++++++++++++++++++++--------- 1 files changed, 38 insertions(+), 11 deletions(-) diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index 50b9c22..34dbfa9 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -725,22 +725,49 @@ END(syscall_badsys) /* * System calls that need a pt_regs pointer. */ -#define PTREGSCALL(name) \ +#define PTREGSCALL0(name) \ ALIGN; \ ptregs_##name: \ leal 4(%esp),%eax; \ jmp sys_##name; -PTREGSCALL(iopl) -PTREGSCALL(fork) -PTREGSCALL(clone) -PTREGSCALL(vfork) -PTREGSCALL(execve) -PTREGSCALL(sigaltstack) -PTREGSCALL(sigreturn) -PTREGSCALL(rt_sigreturn) -PTREGSCALL(vm86) -PTREGSCALL(vm86old) +#define PTREGSCALL1(name) \ + ALIGN; \ +ptregs_##name: \ + leal 4(%esp),%edx; \ + movl PT_EBX(%edx),%eax; \ + jmp sys_##name; + +#define PTREGSCALL2(name) \ + ALIGN; \ +ptregs_##name: \ + leal 4(%esp),%ecx; \ + movl PT_ECX(%ecx),%edx; \ + movl PT_EBX(%ecx),%eax; \ + jmp sys_##name; + +#define PTREGSCALL3(name) \ + ALIGN; \ +ptregs_##name: \ + leal 4(%esp),%eax; \ + pushl %eax; \ + movl PT_EDX(%eax),%ecx; \ + movl PT_ECX(%eax),%edx; \ + movl PT_EBX(%eax),%eax; \ + call sys_##name; \ + addl $4,%esp; \ + ret + +PTREGSCALL0(iopl) +PTREGSCALL0(fork) +PTREGSCALL0(clone) +PTREGSCALL0(vfork) +PTREGSCALL0(execve) +PTREGSCALL0(sigaltstack) +PTREGSCALL0(sigreturn) +PTREGSCALL0(rt_sigreturn) +PTREGSCALL0(vm86) +PTREGSCALL0(vm86old) .macro FIXUP_ESPFIX_STACK /* -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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