Remove _Unwind_* stubs from pnacl_abi.bc

pnacl/driver/pnacl-ld.py

Index: pnacl/driver/pnacl-ld.py
diff --git a/pnacl/driver/pnacl-ld.py b/pnacl/driver/pnacl-ld.py
index 524635629b89395e329b28c79aa5cb1bffbafc67..e9f4a141f6efbeb6a83aa3cd1b1e9b90eb34fef3 100755
--- a/pnacl/driver/pnacl-ld.py
+++ b/pnacl/driver/pnacl-ld.py
@@ -100,10 +100,25 @@ EXTRA_ENV = {
   'LD_GOLD_OFORMAT_X8664'  : 'elf64-x86-64-nacl',
   'LD_GOLD_OFORMAT_MIPS32' : 'elf32-tradlittlemips',
 
-  'BCLD'      : '${LD_GOLD}',
-  'BCLD_FLAGS': '--oformat ${LD_GOLD_OFORMAT} -Ttext=0x20000 ' +
-                '${!SHARED && !RELOCATABLE ? --undef-sym-check} ' +
-                '${GOLD_PLUGIN_ARGS} ${LD_FLAGS}',
+  'BCLD'                   : '${LD_GOLD}',
+  'FINAL_BCLD_LINK_FLAGS'  :
+    '--undef-sym-check --allow-unresolved=_Unwind_DeleteException ' +

[jvoung (off chromium), 2013/05/07 18:11:55]

keep one exception per line so that they are easier to see?

Should the list of exceptions only be there when ALLOW_CXX_EXCEPTIONS is true?

[Mark Seaborn, 2013/05/07 18:16:06]

Also, you can omit the "+": Python does C-style string literal concatenation.
Right.  It would be better to get a bitcode-link-time error than an ABI verifier
error if you're using these symbols wrongly.

[eliben, 2013/05/07 18:55:04]

Done.

[eliben, 2013/05/07 18:55:04]

Done, although it was consistent with the surrounding script's style.
 
Done

+    '--allow-unresolved=_Unwind_GetIP --allow-unresolved=_Unwind_GetIPInfo ' +
+    '--allow-unresolved=_Unwind_Resume --allow-unresolved=_Unwind_GetCFA ' +
+    '--allow-unresolved=_Unwind_Backtrace --allow-unresolved=_Unwind_SetIP ' +
+    '--allow-unresolved=_Unwind_GetRegionStart ' +
+    '--allow-unresolved=_Unwind_GetDataRelBase ' +
+    '--allow-unresolved=_Unwind_GetTextRelBase ' +
+    '--allow-unresolved=_Unwind_GetLanguageSpecificData ' +
+    '--allow-unresolved=_Unwind_PNaClSetResult0 ' +
+    '--allow-unresolved=_Unwind_PNaClSetResult1 ' +
+    '--allow-unresolved=_Unwind_RaiseException ' +
+    '--allow-unresolved=_Unwind_Resume_or_Rethrow ',
+
+  'BCLD_FLAGS':
+    '--oformat ${LD_GOLD_OFORMAT} -Ttext=0x20000 ' +
+    '${!SHARED && !RELOCATABLE ? ${FINAL_BCLD_LINK_FLAGS}} ' +
+    '${GOLD_PLUGIN_ARGS} ${LD_FLAGS}',
   'RUN_BCLD': ('${BCLD} ${BCLD_FLAGS} ${inputs} -o ${output}'),
 
   'ALLOW_CXX_EXCEPTIONS': '0',