[07/59] libctf, open: drop unnecessary historical wart around forwards
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Message ID 20200630233146.338613-8-nick.alcock@oracle.com
State New
Headers show
Series
  • Deduplicating CTF linker
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Commit Message

H.J. Lu via Binutils June 30, 2020, 11:30 p.m. 
When opening, we consider a forward with a kind above the maximum
allowable set of kinds and a forward of kind CTF_K_UNKNOWN to be a
forward to a struct.  Whatever CTF version it was that produced
forwards with no associated kind, it predates anything we can read:
remove this wart.

libctf/
	* ctf-open.c (init_types): Remove typeless CTF_K_FORWARD
	special-casing.
---
 libctf/ctf-open.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

-- 
2.27.0.247.g3dff7de930

Patch
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diff --git a/libctf/ctf-open.c b/libctf/ctf-open.c
index 4daa1e45351..05672f36498 100644
--- a/libctf/ctf-open.c
+++ b/libctf/ctf-open.c
@@ -692,17 +692,11 @@  init_types (ctf_file_t *fp, ctf_header_t *cth)
       if (vbytes < 0)
 	return ECTF_CORRUPT;
 
+      /* For forward declarations, ctt_type is the CTF_K_* kind for the tag,
+	 so bump that population count too.  */
       if (kind == CTF_K_FORWARD)
-	{
-	  /* For forward declarations, ctt_type is the CTF_K_* kind for the tag,
-	     so bump that population count too.  If ctt_type is unknown, treat
-	     the tag as a struct.  */
+	pop[tp->ctt_type]++;
 
-	  if (tp->ctt_type == CTF_K_UNKNOWN || tp->ctt_type >= CTF_K_MAX)
-	    pop[CTF_K_STRUCT]++;
-	  else
-	    pop[tp->ctt_type]++;
-	}
       tp = (ctf_type_t *) ((uintptr_t) tp + increment + vbytes);
       pop[kind]++;
     }