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configure.ac: more debugging options

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Make -O0 imply -fno-omit-frame-pointer
Add options to compile/link with AddressSanitizer and
UndefinedSanitizer.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
H. Peter Anvin 2017-10-11 16:47:59 -07:00
parent 89215e9e37
commit 53259e8aaf
1 changed files with 20 additions and 5 deletions
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25
configure.ac
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@ -29,14 +29,19 @@ dnl to either -O3 (normal) or -O0 (for debugging)
PA_ARG_DISABLED([optimization],
[compile without optimization (-O0) to help debugging],
[pa_optimize=-O0], [pa_optimize=-O3])
AS_IF([test x"$pa_init_cflags" = x],
[CFLAGS=`echo "$CFLAGS" | sed -e "s/-O2/$pa_optimize/"`])
dnl Compile and link with dwarf debug
PA_ARG_ENABLED([gdb],
[disable optimization and compile with extra debug information for GDB debugger],
[CFLAGS=`echo "$CFLAGS" | sed -e "s/\(-O2\|-O3\)/-O0/"`
PA_ADD_CLDFLAGS([-ggdb3])])
[pa_optimize='-O0'
PA_ADD_CFLAGS([-ggdb3])
])
AS_IF([test x"$pa_init_cflags" = x],
[CFLAGS=`echo "$CFLAGS" | sed -e "s/-O2/$pa_optimize/"`])
AS_IF([test x"$pa_optimize" = "x-O0"],
[PA_ADD_CFLAGS([-fno-omit-frame-pointer])])
dnl Check for library extension
PA_LIBEXT
@ -179,7 +184,7 @@ PA_FUNC_ATTRIBUTE(pure)
PA_FUNC_ATTRIBUTE_ERROR
dnl
dnl support function sections
dnl support function sections (if available)
dnl
PA_ARG_ENABLED([sections],
[compile with function/data section support],
@ -187,6 +192,7 @@ PA_ARG_ENABLED([sections],
PA_ADD_CLDFLAGS([-fdata-sections])
PA_ADD_CLDFLAGS([-Wl,--gc-sections])],
[])
dnl
dnl support LTO
dnl
@ -201,6 +207,15 @@ PA_ARG_ENABLED([lto],
AC_CHECK_PROGS(CC_RANLIB, [${ccbase}-ranlib], [$ac_cv_prog_RANLIB])
RANLIB="$CC_RANLIB"], [])
dnl
dnl support sanitizers (if available)
dnl
PA_ARG_ENABLED([sanitizer],
[compile with sanitizers enabled],
[PA_ADD_CFLAGS([-fno-omit-frame-pointer])
PA_ADD_CLDFLAGS([-fsanitize=address])
PA_ADD_CLDFLAGS([-fsanitize=undefined])])
dnl If we have gcc, add appropriate code cleanliness options
PA_ADD_CFLAGS([-W])
PA_ADD_CFLAGS([-Wall])