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Store TLS base in the sigframe just as is done in freebsd32_sendsig. Because

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the native sigreturn doesn't use set_mcontext like the COMPAT_FREEBSD32 version
does, this wouldn't actually result in overwriting the TLS base.  Probably it
makes sense to restructure the native sigreturn to use set_mcontext for
consistency, and to allow sigreturn to change the TLS base.
This commit is contained in:
Juli Mallett 2012-03-06 08:02:10 +00:00
parent bdf4700515
commit 6fa3bc4f91
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=232585
1 changed files with 1 additions and 0 deletions
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sys/mips/mips/pm_machdep.c
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@ -110,6 +110,7 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
sf.sf_uc.uc_mcontext.mc_pc = regs->pc;
sf.sf_uc.uc_mcontext.mullo = regs->mullo;
sf.sf_uc.uc_mcontext.mulhi = regs->mulhi;
sf.sf_uc.uc_mcontext.mc_tls = td->td_md.md_tls;
sf.sf_uc.uc_mcontext.mc_regs[0] = UCONTEXT_MAGIC; /* magic number */
bcopy((void *)&regs->ast, (void *)&sf.sf_uc.uc_mcontext.mc_regs[1],
sizeof(sf.sf_uc.uc_mcontext.mc_regs) - sizeof(register_t));