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Setjmp/longjmp updates and cleanup.

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This commit is contained in:
David van Moolenbroek
2006-12-08 16:23:18 +00:00
parent 170a72fd61
commit d4e6fe3546
16 changed files with 232 additions and 345 deletions
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13
kernel/system/do_sigreturn.c
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@@ -38,19 +38,6 @@ message *m_ptr; /* pointer to request message */
if (src_phys == 0) return(EFAULT);
phys_copy(src_phys, vir2phys(&sc), (phys_bytes) sizeof(struct sigcontext));
/* Make sure that this is not just a jump buffer. */
if ((sc.sc_flags & SC_SIGCONTEXT) == 0) return(EINVAL);
/* Fix up only certain key registers if the compiler doesn't use
* register variables within functions containing setjmp.
*/
if (sc.sc_flags & SC_NOREGLOCALS) {
rp->p_reg.retreg = sc.sc_retreg;
rp->p_reg.fp = sc.sc_fp;
rp->p_reg.pc = sc.sc_pc;
rp->p_reg.sp = sc.sc_sp;
return(OK);
}
sc.sc_psw = rp->p_reg.psw;
#if (CHIP == INTEL)

2
kernel/system/do_sigsend.c
View File

@@ -47,7 +47,7 @@ message *m_ptr; /* pointer to request message */
memcpy(&sc.sc_regs, (char *) &rp->p_reg, sizeof(struct sigregs));
/* Finish the sigcontext initialization. */
sc.sc_flags = SC_SIGCONTEXT;
sc.sc_flags = 0; /* unused at this time */
sc.sc_mask = smsg.sm_mask;
/* Copy the sigcontext structure to the user's stack. */