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From-SVN: r39537
This commit is contained in:
Jason Merrill 2001-02-08 07:39:14 -05:00
parent 1ae696e59a
commit 870eabc47e
1 changed files with 15 additions and 5 deletions
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20
gcc/libgcc2.c
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@ -3886,9 +3886,9 @@ next_stack_level (void *pc, frame_state *udata, frame_state *caller_udata,
return 0;
/* Now go back to our caller's stack frame. If our caller's CFA was
saved in a register in this stack frame or a previous one,
restore it; otherwise, assume CFA register was saved in SP and
restore it to our CFA value. */
saved in a register in this stack frame or a previous one, restore it;
otherwise, assume CFA register is SP and restore it to our CFA value
(which is defined to be the value of SP in the caller's frame). */
p = saved_regs->reg[caller_udata->cfa_reg];
if (p)
@ -4107,7 +4107,12 @@ label:
On the SPARC, this means flushing the register windows. */
__builtin_unwind_init ();
/* Now reset pc to the right throw point. */
/* Now reset pc to the right throw point. The return address points to
the instruction after the call to __throw; we subtract 1 so that pc
points into the call insn itself. Since we work with PC ranges (as
opposed to specific call sites), it isn't important for it to point to
the very beginning of the call insn, and making it do so would be
hard on targets with variable length call insns. */
pc = __builtin_extract_return_addr (__builtin_return_address (0)) - 1;
handler = throw_helper (eh, pc, my_udata, &offset);
@ -4157,7 +4162,12 @@ label:
On the SPARC, this means flushing the register windows. */
__builtin_unwind_init ();
/* Now reset pc to the right throw point. */
/* Now reset pc to the right throw point. The return address points to
the instruction after the call to __throw; we subtract 1 so that pc
points into the call insn itself. Since we work with PC ranges (as
opposed to specific call sites), it isn't important for it to point to
the very beginning of the call insn, and making it do so would be
hard on targets with variable length call insns. */
pc = __builtin_extract_return_addr (__builtin_return_address (0)) - 1;
handler = throw_helper (eh, pc, my_udata, &offset);