bfd/

* elf32-spu.c (build_stub): Always build "compact" sofware i-cache stubs. ld/ * emultempl/spuelf.em (PARSE_AND_LIST_ARGS_CASES): Always use compact stubs with software i-cache. ld/testsuite/ * ld-spu/icache1.d: Update for compact stubs.
2025-06-29 16:38:05 +08:00 · 2009-05-14 16:56:09 +00:00
parent 97fc8d845e
commit cdc83fba73
6 changed files with 104 additions and 148 deletions
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@ -1,3 +1,8 @@
+2009-05-14  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* elf32-spu.c (build_stub): Always build "compact" sofware
+	i-cache stubs.
+
 2009-05-14  Ulrich Weigand  <uweigand@de.ibm.com>

 	* elf32-spu.c (struct spu_link_hash_table): Add fromelem_size_log2.
--- a/bfd/elf32-spu.c
+++ b/bfd/elf32-spu.c
@ -1271,7 +1271,8 @@ build_stub (struct bfd_link_info *info,
      bfd_put_32 (sec->owner, (dest & 0x3ffff) | (dest_ovl << 18),
 		  sec->contents + sec->size + 4);
    }
-  else if (htab->params->ovly_flavour == ovly_soft_icache)
+  else if (htab->params->ovly_flavour == ovly_soft_icache
+	   && htab->params->compact_stub)
    {
      lrlive = 0;
      if (stub_type == nonovl_stub)
@ -1357,12 +1358,10 @@ build_stub (struct bfd_link_info *info,
 	      + htab->ovly_entry[1]->root.u.def.section->output_offset
 	      + htab->ovly_entry[1]->root.u.def.section->output_section->vma);

-      if (!htab->params->compact_stub)
-	{
-	  /* The branch that uses this stub goes to stub_addr + 12.  We'll
+      /* The branch that uses this stub goes to stub_addr + 4.  We'll
 	 set up an xor pattern that can be used by the icache manager
 	 to modify this branch to go directly to its destination.  */
-	  g->stub_addr += 12;
+      g->stub_addr += 4;
      br_dest = g->stub_addr;
      if (irela == NULL)
 	{
@ -1373,32 +1372,6 @@ build_stub (struct bfd_link_info *info,
 	  br_dest = to;
 	}

-	  bfd_put_32 (sec->owner, dest_ovl - 1,
-		      sec->contents + sec->size + 0);
-	  set_id = ((dest_ovl - 1) >> htab->num_lines_log2) + 1;
-	  bfd_put_32 (sec->owner, (set_id << 18) | (dest & 0x3ffff),
-		      sec->contents + sec->size + 4);
-	  bfd_put_32 (sec->owner, (lrlive << 29) | (g->br_addr & 0x3ffff),
-		      sec->contents + sec->size + 8);
-	  bfd_put_32 (sec->owner, BRASL + ((to << 5) & 0x007fff80) + 75,
-		      sec->contents + sec->size + 12);
-	  patt = dest ^ br_dest;
-	  if (irela != NULL && ELF32_R_TYPE (irela->r_info) == R_SPU_REL16)
-	    patt = (dest - g->br_addr) ^ (br_dest - g->br_addr);
-	  bfd_put_32 (sec->owner, (patt << 5) & 0x007fff80,
-		      sec->contents + sec->size + 16 + (g->br_addr & 0xf));
-	}
-      else
-	{
-	  g->stub_addr += 4;
-	  br_dest = g->stub_addr;
-	  if (irela == NULL)
-	    {
-	      BFD_ASSERT (stub_type == nonovl_stub);
-	      g->br_addr = g->stub_addr;
-	      br_dest = to;
-	    }
-
      set_id = ((dest_ovl - 1) >> htab->num_lines_log2) + 1;
      bfd_put_32 (sec->owner, (set_id << 18) | (dest & 0x3ffff),
 		  sec->contents + sec->size);
@ -1411,7 +1384,6 @@ build_stub (struct bfd_link_info *info,
 	patt = (dest - g->br_addr) ^ (br_dest - g->br_addr);
      bfd_put_32 (sec->owner, (patt << 5) & 0x007fff80,
 		  sec->contents + sec->size + 12);
-	}

      if (ovl == 0)
 	/* Extra space for linked list entries.  */
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@ -1,3 +1,8 @@
+2009-05-14  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* emultempl/spuelf.em (PARSE_AND_LIST_ARGS_CASES): Always use
+	compact stubs with software i-cache.
+
 2009-05-14  Alan Modra  <amodra@bigpond.net.au>

 	* emultempl/spuelf.em (spu_before_allocation): Call
--- a/ld/emultempl/spuelf.em
+++ b/ld/emultempl/spuelf.em
@ -719,6 +719,8 @@ PARSE_AND_LIST_ARGS_CASES='

    case OPTION_SPU_SOFT_ICACHE:
      params.ovly_flavour = ovly_soft_icache;
+      /* Software i-cache stubs are always "compact".  */
+      params.compact_stub = 1;
      if (!num_lines_set)
 	params.num_lines = 32;
      else if ((params.num_lines & -params.num_lines) != params.num_lines)
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@ -1,3 +1,7 @@
+2009-05-14  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* ld-spu/icache1.d: Update for compact stubs.
+
 2009-05-14  Ulrich Weigand  <uweigand@de.ibm.com>

 	* ld-spu/icache1.d: Update all addresses to accomodate icache
--- a/ld/testsuite/ld-spu/icache1.d
+++ b/ld/testsuite/ld-spu/icache1.d
@ -26,30 +26,23 @@ Disassembly of section \.ovly2:
 .*	24 00 40 80 	stqd	\$0,16\(\$1\)
 .*	1c f0 00 81 	ai	\$1,\$1,-64
 .*	24 00 00 81 	stqd	\$1,0\(\$1\)
-.*	33 00 73 80 	brsl	\$0,7ac .*
-.*	33 00 77 00 	brsl	\$0,7cc .*
+.*	33 00 78 80 	brsl	\$0,7d4 .*
+.*	33 00 7a 00 	brsl	\$0,7e4 .*
 	\.\.\.
-.*	32 00 16 80 	br	7ec .*
+.*	32 00 17 80 	br	7f4 .*
 	\.\.\.
- 7a0:	00 00 00 02.*
- 7a4:	00 04 09 04.*
- 7a8:	a0 00 04 10.*
- 7ac:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
- 7b0:	00 00 ed 00.*
-	\.\.\.
- 7c0:	00 00 00 02.*
- 7c4:	00 04 08 00.*
- 7c8:	a0 00 04 14.*
- 7cc:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
- 7d0:	00 00 00 00.*
- 7d4:	00 00 0a 80.*
-	\.\.\.
- 7e4:	00 04 00 00.*
- 7e8:	20 00 07 38.*
- 7ec:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
-	\.\.\.
- 7f8:	00 7f 0f 80.*
- 7fc:	00 00 00 00.*
+ 7d0:	00 04 09 04.*
+ 7d4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 7d8:	a0 00 04 10.*
+ 7dc:	00 00 e6 00.*
+ 7e0:	00 04 08 00.*
+ 7e4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 7e8:	a0 00 04 14.*
+ 7ec:	00 00 07 80.*
+ 7f0:	00 04 00 00.*
+ 7f4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 7f8:	20 00 07 38.*
+ 7fc:	00 7f 0e 80.*

 Disassembly of section \.ovly3:

@ -86,43 +79,33 @@ Disassembly of section \.ovly5:
 .*	42 01 00 03 	ila	\$3,200 .*
 .*	18 00 c0 81 	a	\$1,\$1,\$3
 .*	34 00 40 80 	lqd	\$0,16\(\$1\)
-.*	30 00 7d 80 	bra	3ec .*
+.*	30 00 7e 80 	bra	3f4 .*
 	\.\.\.
- 3e0:	00 00 00 03.*
- 3e4:	00 04 0c 00.*
- 3e8:	a0 00 03 2c.*
- 3ec:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
-	\.\.\.
- 3fc:	00 01 fd 80.*
+ 3f0:	00 04 0c 00.*
+ 3f4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 3f8:	a0 00 03 2c.*
+ 3fc:	00 01 fe 80.*

 Disassembly of section \.ovly6:

 00000400 <\.ovly6>:
-.*	31 00 f5 80 	brasl	\$0,7ac .*
-.*	33 00 79 00 	brsl	\$0,7cc .*
+.*	31 00 fa 80 	brasl	\$0,7d4 .*
+.*	33 00 7c 00 	brsl	\$0,7e4 .*
 	\.\.\.
-.*	32 00 18 80 	br	7ec .*
+.*	32 00 19 80 	br	7f4 .*
 	\.\.\.
- 7a0:	00 00 00 07.*
- 7a4:	00 08 0c 00.*
- 7a8:	a0 00 04 00.*
- 7ac:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
- 7b0:	00 01 75 80.*
-	\.\.\.
- 7c0:	00 00 00 07.*
- 7c4:	00 08 0c 00.*
- 7c8:	a0 00 04 04.*
- 7cc:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
- 7d0:	00 00 00 00.*
- 7d4:	00 00 86 80.*
-	\.\.\.
- 7e0:	00 00 00 04.*
- 7e4:	00 08 00 00.*
- 7e8:	20 00 07 28.*
- 7ec:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
-	\.\.\.
- 7f8:	00 7f 03 80.*
- 7fc:	00 00 00 00.*
+ 7d0:	00 08 0c 00.*
+ 7d4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 7d8:	a0 00 04 00.*
+ 7dc:	00 01 7a 80.*
+ 7e0:	00 08 0c 00.*
+ 7e4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 7e8:	a0 00 04 04.*
+ 7ec:	00 00 83 80.*
+ 7f0:	00 08 00 00.*
+ 7f4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ 7f8:	20 00 07 28.*
+ 7fc:	00 7f 02 80.*

 Disassembly of section \.ovly7:

@ -133,32 +116,24 @@ Disassembly of section \.ovly7:
 .*	00 20 00 00 	lnop
 .*	04 00 02 01 	ori	\$1,\$4,0
 .*	24 00 02 04 	stqd	\$4,0\(\$4\)
-.*	33 00 72 80 	brsl	\$0,bac .*
-.*	33 00 76 00 	brsl	\$0,bcc .*
+.*	33 00 77 80 	brsl	\$0,bd4 .*
+.*	33 00 79 00 	brsl	\$0,be4 .*
 .*	34 00 00 81 	lqd	\$1,0\(\$1\)
 	\.\.\.
-.*	32 00 15 00 	br	bec .*
-	\.\.\.
- ba0:	00 00 00 03.*
- ba4:	00 04 0c 00.*
- ba8:	a0 00 08 18.*
- bac:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
-	\.\.\.
- bb8:	00 00 0f 80.*
- bbc:	00 00 00 00.*
- bc0:	00 00 00 07.*
- bc4:	00 08 0c 00.*
- bc8:	a0 00 08 1c.*
- bcc:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+.*	32 00 16 00 	br	bf4 .*
 	\.\.\.
+ bd0:	00 04 0c 00.*
+ bd4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ bd8:	a0 00 08 18.*
 bdc:	00 00 0a 80.*
- be0:	00 00 00 05.*
- be4:	00 08 04 00.*
- be8:	20 00 0b 44.*
- bec:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
- bf0:	00 00 00 00.*
- bf4:	00 7f 02 80.*
-	\.\.\.
+ be0:	00 08 0c 00.*
+ be4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ be8:	a0 00 08 1c.*
+ bec:	00 00 05 80.*
+ bf0:	00 08 04 00.*
+ bf4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+ bf8:	20 00 0b 44.*
+ bfc:	00 7f 01 80.*

 Disassembly of section \.ovly8:

@ -166,39 +141,32 @@ Disassembly of section \.ovly8:
 .*	24 00 40 80 	stqd	\$0,16\(\$1\)
 .*	24 f8 00 81 	stqd	\$1,-512\(\$1\)
 .*	1c 80 00 81 	ai	\$1,\$1,-512
-.*	31 01 f9 80 	brasl	\$0,fcc .*
+.*	31 01 fc 80 	brasl	\$0,fe4 .*
 	\.\.\.
-.*	32 00 17 80 	br	fec .*
-	\.\.\.
-     fc0:	00 00 00 02.*
-     fc4:	00 04 09 04.*
-     fc8:	a0 00 0c 0c.*
-     fcc:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
-	\.\.\.
-     fdc:	00 00 d9 00.*
-     fe0:	00 00 00 06.*
-     fe4:	00 08 08 00.*
-     fe8:	20 00 0f 30.*
-     fec:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
-     ff0:	00 7f 0d 80.*
+.*	32 00 18 80 	br	ff4 .*
 	\.\.\.
+     fe0:	00 04 09 04.*
+     fe4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+     fe8:	a0 00 0c 0c.*
+     fec:	00 00 dc 00.*
+     ff0:	00 08 08 00.*
+     ff4:	31 02 01 cb 	brasl	\$75,100c <__icache_br_handler>
+     ff8:	20 00 0f 30.*
+     ffc:	00 7f 02 80.*

 Disassembly of section \.text:

 00001000 <_start>:
 .*	41 00 02 03 	ilhu	\$3,4
 .*	60 86 00 03 	iohl	\$3,3072	# c00
-.*	32 00 04 80 	br	102c.*
+.*	32 00 03 80 	br	1024.*
 0000100c <__icache_br_handler>:
    100c:	00 00 00 00 	stop
 00001010 <__icache_call_handler>:
 	\.\.\.
-    1020:	00 00 00 01.*
-    1024:	00 04 04 00.*
+    1020:	00 04 04 00.*
+    1024:	31 02 02 4b 	brasl	\$75,1010 <__icache_call_handler>
    1028:	a0 00 10 08.*
-    102c:	31 02 02 4b 	brasl	\$75,1010 <__icache_call_handler>
-	\.\.\.
-    1038:	00 7e 7b 80.*
-	\.\.\.
+    102c:	00 7e 7c 80.*

 #pass