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Reserve space for FPU state in struct sigcontext. Fix some style bugs

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and comments while there.

Submitted by: bde
This commit is contained in:
Marcel Moolenaar 1999-11-12 13:52:11 +00:00
parent c76060988e
commit e6daa89c15
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=53108
2 changed files with 36 additions and 22 deletions
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29
sys/amd64/include/signal.h
View File

@ -57,9 +57,9 @@ typedef int sig_atomic_t;
typedef unsigned int osigset_t;
struct osigcontext {
int sc_onstack; /* sigstack state to restore */
osigset_t sc_mask; /* signal mask to restore */
int sc_esp; /* machine state */
int sc_onstack; /* sigstack state to restore */
osigset_t sc_mask; /* signal mask to restore */
int sc_esp; /* machine state follows: */
int sc_ebp;
int sc_isp;
int sc_eip;
@ -81,13 +81,13 @@ struct osigcontext {
};
/*
* The sequence of the fields/registers in sigcontext should match
* The sequence of the fields/registers in struct sigcontext should match
* those in mcontext_t.
*/
struct sigcontext {
sigset_t sc_mask; /* signal mask to restore */
int sc_onstack; /* sigstack state to restore */
int sc_gs;
int sc_gs; /* machine state (struct trapframe): */
int sc_fs;
int sc_es;
int sc_ds;
@ -104,15 +104,22 @@ struct sigcontext {
int sc_eip;
int sc_cs;
int sc_efl;
int sc_esp; /* machine state */
int sc_esp;
int sc_ss;
/*
* XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not
* needed here), or that + 16 * 4 bytes for emulators (probably all
* needed here). The "spare" bytes are mostly not spare.
*/
int sc_fpregs[28]; /* machine state (FPU): */
int sc_spare[17];
};
#define sc_sp sc_esp
#define sc_fp sc_ebp
#define sc_pc sc_eip
#define sc_ps sc_efl
#define sc_eflags sc_efl
#define sc_sp sc_esp
#define sc_fp sc_ebp
#define sc_pc sc_eip
#define sc_ps sc_efl
#define sc_eflags sc_efl
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */

29
sys/i386/include/signal.h
View File

@ -57,9 +57,9 @@ typedef int sig_atomic_t;
typedef unsigned int osigset_t;
struct osigcontext {
int sc_onstack; /* sigstack state to restore */
osigset_t sc_mask; /* signal mask to restore */
int sc_esp; /* machine state */
int sc_onstack; /* sigstack state to restore */
osigset_t sc_mask; /* signal mask to restore */
int sc_esp; /* machine state follows: */
int sc_ebp;
int sc_isp;
int sc_eip;
@ -81,13 +81,13 @@ struct osigcontext {
};
/*
* The sequence of the fields/registers in sigcontext should match
* The sequence of the fields/registers in struct sigcontext should match
* those in mcontext_t.
*/
struct sigcontext {
sigset_t sc_mask; /* signal mask to restore */
int sc_onstack; /* sigstack state to restore */
int sc_gs;
int sc_gs; /* machine state (struct trapframe): */
int sc_fs;
int sc_es;
int sc_ds;
@ -104,15 +104,22 @@ struct sigcontext {
int sc_eip;
int sc_cs;
int sc_efl;
int sc_esp; /* machine state */
int sc_esp;
int sc_ss;
/*
* XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not
* needed here), or that + 16 * 4 bytes for emulators (probably all
* needed here). The "spare" bytes are mostly not spare.
*/
int sc_fpregs[28]; /* machine state (FPU): */
int sc_spare[17];
};
#define sc_sp sc_esp
#define sc_fp sc_ebp
#define sc_pc sc_eip
#define sc_ps sc_efl
#define sc_eflags sc_efl
#define sc_sp sc_esp
#define sc_fp sc_ebp
#define sc_pc sc_eip
#define sc_ps sc_efl
#define sc_eflags sc_efl
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */