diff options
Diffstat (limited to 'gcc/config/rs6000/linux.h')
| -rw-r--r-- | gcc/config/rs6000/linux.h | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/gcc/config/rs6000/linux.h b/gcc/config/rs6000/linux.h index 3cfe0204734..c3e4a586570 100644 --- a/gcc/config/rs6000/linux.h +++ b/gcc/config/rs6000/linux.h @@ -93,7 +93,18 @@ #ifdef IN_LIBGCC2 #include <signal.h> -#include <sys/ucontext.h> + +/* During the 2.5 kernel series the kernel ucontext was changed, but + the new layout is compatible with the old one, so we just define + and use the old one here for simplicity and compatibility. */ + +struct kernel_old_ucontext { + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + struct sigcontext_struct uc_mcontext; + sigset_t uc_sigmask; +}; enum { SIGNAL_FRAMESIZE = 64 }; #endif @@ -129,7 +140,7 @@ enum { SIGNAL_FRAMESIZE = 64 }; struct siginfo *pinfo; \ void *puc; \ struct siginfo info; \ - struct ucontext uc; \ + struct kernel_old_ucontext uc; \ } *rt_ = (CONTEXT)->cfa; \ sc_ = &rt_->uc.uc_mcontext; \ } \ @@ -153,15 +164,9 @@ enum { SIGNAL_FRAMESIZE = 64 }; (FS)->regs.reg[LINK_REGISTER_REGNUM].loc.offset \ = (long)&(sc_->regs->link) - new_cfa_; \ \ - /* The unwinder expects the IP to point to the following insn, \ - whereas the kernel returns the address of the actual \ - faulting insn. We store NIP+4 in an unused register slot to \ - get the same result for multiple evaluation of the same signal \ - frame. */ \ - sc_->regs->gpr[47] = sc_->regs->nip + 4; \ (FS)->regs.reg[CR0_REGNO].how = REG_SAVED_OFFSET; \ (FS)->regs.reg[CR0_REGNO].loc.offset \ - = (long)&(sc_->regs->gpr[47]) - new_cfa_; \ + = (long)&(sc_->regs->nip) - new_cfa_; \ (FS)->retaddr_column = CR0_REGNO; \ goto SUCCESS; \ } while (0) |