00ebfe58b0
The following patch defines sigcontext ABI of ColdFire. Due to ISA restrictions ColdFire needs different rt_sigreturn trampoline. And due to ColdFire FP registers being 8-bytes instead of 12-bytes on m68k, sigcontext and fpregset structures should be updated. Regarding the sc_fpstate[16+6*8] field, it would've been enough 16 bytes to store ColdFire's FP state. To accomodate GLIBC's libSegFault it would'be been enough 6*8 bytes (room for the 6 non-call-clobbered FP registers). I set it to 16+6*8 to provide some extra space for any future changes in the ColdFire FPU. Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
31 lines
732 B
C
31 lines
732 B
C
#ifndef _ASM_M68k_SIGCONTEXT_H
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#define _ASM_M68k_SIGCONTEXT_H
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struct sigcontext {
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unsigned long sc_mask; /* old sigmask */
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unsigned long sc_usp; /* old user stack pointer */
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unsigned long sc_d0;
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unsigned long sc_d1;
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unsigned long sc_a0;
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unsigned long sc_a1;
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#ifdef __uClinux__
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unsigned long sc_a5;
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#endif
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unsigned short sc_sr;
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unsigned long sc_pc;
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unsigned short sc_formatvec;
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#ifndef __uClinux__
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# ifdef __mcoldfire__
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unsigned long sc_fpregs[2][2]; /* room for two fp registers */
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unsigned long sc_fpcntl[3];
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unsigned char sc_fpstate[16+6*8];
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# else
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unsigned long sc_fpregs[2*3]; /* room for two fp registers */
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unsigned long sc_fpcntl[3];
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unsigned char sc_fpstate[216];
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# endif
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#endif
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};
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#endif
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