| Message ID | E5E16D50-9BA8-4D44-986E-77432F3715DD@sandoe.co.uk |
|---|---|
| State | New |
| Headers | show |
| Series | [Darwin,config] Check for DWARF debug line support with otool. | expand |
On 12/23/18 4:53 AM, Iain Sandoe wrote: > Hi, > > This corrects a long-standing misconfiguration for Darwin. > The assembler supports the “.file” and “.loc” directives, but > the GCC configury was not detecting this because it was > using objdump, which does not exist on most Darwin installations. > > We added support for “otool” to GCC and now we can use that to > make the check that’s done with objdump on ELF targets. > > OK for trunk? > Iain > > gcc/ > > * configure.ac (dwarf2_debug_line): Check for the debug_line > section using otool when there’s no objdump available. > * configure: Regenerate. OK jeff
diff --git a/gcc/configure.ac b/gcc/configure.ac index 7fce52a319..a101232589 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -4926,6 +4926,10 @@ if test x"$insn" != x; then && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | grep debug_line > /dev/null 2>&1; then gcc_cv_as_dwarf2_debug_line=yes + elif test x$gcc_cv_otool != x \ + && $gcc_cv_otool -l conftest.o 2> /dev/null \ + | grep debug_line > /dev/null 2>&1; then + gcc_cv_as_dwarf2_debug_line=yes fi]) # The .debug_line file table must be in the exact order that