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Fix gcc/printf/ISO C++ warning

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Remove the use of the 't' length modifier to avoid a gcc warning. Based
on usage, 32 bits of precision is good enough for printing a stack
offset for a stack trace.

't' length modifier isn't in C++03 but it *is* in C++11. Added a FIXME
to reintroduce once LLVM makes the switch to C++11.

Reviewer: gribozavr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173711 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Edwin Vane 2013-01-28 19:34:42 +00:00
parent 5ff776bfde
commit 3c1c042a64
1 changed files with 5 additions and 1 deletions
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6
lib/Support/Unix/Signals.inc
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@ -295,7 +295,11 @@ void llvm::sys::PrintStackTrace(FILE *FD) {
else fputs(d, FD); else fputs(d, FD);
free(d); free(d);
fprintf(FD, " + %tu",(char*)StackTrace[i]-(char*)dlinfo.dli_saddr); // FIXME: When we move to C++11, use %t length modifier. It's not in
// C++03 and causes gcc to issue warnings. Losing the upper 32 bits of
// the stack offset for a stack dump isn't likely to cause any problems.
fprintf(FD, " + %u",(unsigned)((char*)StackTrace[i]-
(char*)dlinfo.dli_saddr));
} }
fputc('\n', FD); fputc('\n', FD);
} }