2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#ifndef _I386_SIGNAL_H_
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#define _I386_SIGNAL_H_
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#include <sys/featuretest.h>
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typedef int sig_atomic_t;
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/* The following structure should match the stackframe_s structure used
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* by the kernel's context switching code. Floating point registers should
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* be added in a different struct.
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*/
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#include <machine/stackframe.h>
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#include <machine/fpu.h>
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typedef struct stackframe_s sigregs;
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struct sigframe { /* stack frame created for signalled process */
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void (*sf_retadr)(void);
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int sf_signo;
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int sf_code;
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struct sigcontext *sf_scp;
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int sf_fp;
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void (*sf_retadr2)(void);
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struct sigcontext *sf_scpcopy;
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};
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struct sigcontext {
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int sc_flags; /* sigstack state to restore (including
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* MF_FPU_INITIALIZED)
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*/
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long sc_mask; /* signal mask to restore */
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sigregs sc_regs; /* register set to restore */
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union fpu_state_u sc_fpu_state;
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};
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#if _WORD_SIZE == 4
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#define sc_gs sc_regs.gs
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#define sc_fs sc_regs.fs
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#endif /* _WORD_SIZE == 4 */
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#define sc_es sc_regs.es
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#define sc_ds sc_regs.ds
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#define sc_di sc_regs.di
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#define sc_si sc_regs.si
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#define sc_fp sc_regs.bp
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#define sc_st sc_regs.st /* stack top -- used in kernel */
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#define sc_bx sc_regs.bx
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#define sc_dx sc_regs.dx
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#define sc_cx sc_regs.cx
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#define sc_retreg sc_regs.retreg
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#define sc_retadr sc_regs.retadr /* return address to caller of
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save -- used in kernel */
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#define sc_pc sc_regs.pc
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#define sc_cs sc_regs.cs
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#define sc_psw sc_regs.psw
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#define sc_sp sc_regs.sp
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#define sc_ss sc_regs.ss
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#ifdef _MINIX
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__BEGIN_DECLS
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int sigreturn(struct sigcontext *_scp);
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__END_DECLS
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#endif /* _MINIX */
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#endif /* !_I386_SIGNAL_H_ */
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