Commit 6bfe9661 authored by Franck Bui-Huu's avatar Franck Bui-Huu Committed by Ralf Baechle

[MIPS] signal32: no need to save c0_status register in setup_sigcontext32()

All the information in the MIPS c0_status register is priviledged.
Nothing that would constitute part of the thread context.

The one flag one could possibly argument about might be c0_status.fr
but none of the ABIs or tools or application software can make use
of it.

So for consistency with restore_sigcontext32(), which does not
restore c0_status register, this patch remove the saving part.
Signed-off-by: default avatarFranck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 9432a9ba
......@@ -249,7 +249,6 @@ void output_sc_defines(void)
offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
offset("#define SC_PC ", struct sigcontext, sc_pc);
offset("#define SC_STATUS ", struct sigcontext, sc_status);
offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr);
offset("#define SC_FPC_EIR ", struct sigcontext, sc_fpc_eir);
offset("#define SC_HI1 ", struct sigcontext, sc_hi1);
......
......@@ -170,7 +170,6 @@ static int setup_sigcontext32(struct pt_regs *regs,
int i;
err |= __put_user(regs->cp0_epc, &sc->sc_pc);
err |= __put_user(regs->cp0_status, &sc->sc_status);
err |= __put_user(0, &sc->sc_regs[0]);
for (i = 1; i < 32; i++)
......
......@@ -19,7 +19,7 @@
*/
struct sigcontext {
unsigned int sc_regmask; /* Unused */
unsigned int sc_status;
unsigned int sc_status; /* Unused */
unsigned long long sc_pc;
unsigned long long sc_regs[32];
unsigned long long sc_fpregs[32];
......@@ -76,7 +76,7 @@ struct sigcontext {
struct sigcontext32 {
__u32 sc_regmask; /* Unused */
__u32 sc_status;
__u32 sc_status; /* Unused */
__u64 sc_pc;
__u64 sc_regs[32];
__u64 sc_fpregs[32];
......
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