redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

[MIPS] signal: Fix warnings in o32 compat code.

Browse source 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2007-02-13 00:50:57 +00:00
parent af3d10d52d
commit dd02f06aa9
1 changed files with 23 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
arch/mips/kernel/signal32.c
View file

@ -139,8 +139,20 @@ struct ucontext32 {
sigset_t32 uc_sigmask; /* mask last for extensibility */ sigset_t32 uc_sigmask; /* mask last for extensibility */
}; };
/*
* Horribly complicated - with the bloody RM9000 workarounds enabled
* the signal trampolines is moving to the end of the structure so we can
* increase the alignment without breaking software compatibility.
*/
#if ICACHE_REFILLS_WORKAROUND_WAR == 0 #if ICACHE_REFILLS_WORKAROUND_WAR == 0
struct sigframe32 {
u32 sf_ass[4]; /* argument save space for o32 */
u32 sf_code[2]; /* signal trampoline */
struct sigcontext32 sf_sc;
sigset_t sf_mask;
};
struct rt_sigframe32 { struct rt_sigframe32 {
u32 rs_ass[4]; /* argument save space for o32 */ u32 rs_ass[4]; /* argument save space for o32 */
u32 rs_code[2]; /* signal trampoline */ u32 rs_code[2]; /* signal trampoline */
@ -150,6 +162,14 @@ struct rt_sigframe32 {
#else /* ICACHE_REFILLS_WORKAROUND_WAR */ #else /* ICACHE_REFILLS_WORKAROUND_WAR */
struct sigframe32 {
u32 sf_ass[4]; /* argument save space for o32 */
u32 sf_pad[2];
struct sigcontext32 sf_sc; /* hw context */
sigset_t sf_mask;
u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
};
struct rt_sigframe32 { struct rt_sigframe32 {
u32 rs_ass[4]; /* argument save space for o32 */ u32 rs_ass[4]; /* argument save space for o32 */
u32 rs_pad[2]; u32 rs_pad[2];
@ -493,10 +513,10 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs) asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
{ {
struct sigframe __user *frame; struct sigframe32 __user *frame;
sigset_t blocked; sigset_t blocked;
frame = (struct sigframe __user *) regs.regs[29]; frame = (struct sigframe32 __user *) regs.regs[29];
if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe; goto badframe;
if (__copy_from_user(&blocked, &frame->sf_mask, sizeof(blocked))) if (__copy_from_user(&blocked, &frame->sf_mask, sizeof(blocked)))
@ -581,7 +601,7 @@ badframe:
int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs, int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
int signr, sigset_t *set) int signr, sigset_t *set)
{ {
struct sigframe __user *frame; struct sigframe32 __user *frame;
int err = 0; int err = 0;
frame = get_sigframe(ka, regs, sizeof(*frame)); frame = get_sigframe(ka, regs, sizeof(*frame));