Commit 6dfe8e59 authored by Vedant Kumar's avatar Vedant Kumar
Browse files

[profile] Second speculative fix for Windows 

VLAs in C appear to not work on Windows, so use COMPILER_RT_ALLOCA:

C:\b\slave\sanitizer-windows\llvm-project\compiler-rt\lib\profile\InstrProfilingWriter.c(264): error C2057: expected constant expression
C:\b\slave\sanitizer-windows\llvm-project\compiler-rt\lib\profile\InstrProfilingWriter.c(264): error C2466: cannot allocate an array of constant size 0
C:\b\slave\sanitizer-windows\llvm-project\compiler-rt\lib\profile\InstrProfilingWriter.c(264): error C2133: 'Zeroes': unknown size
parent aa7f3a40

compiler-rt/lib/profile/InstrProfilingWriter.c

+1 −1
Original line number Diff line number Diff line
@@ -261,7 +261,7 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin, 


  /* Enough zeroes for padding. */

  unsigned PageSize = getpagesize();

  char Zeroes[PageSize];

  char *Zeroes = (char *)COMPILER_RT_ALLOCA(PageSize);

  memset(Zeroes, 0, PageSize);



  /* Create the header. */