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| author | Ben Gamari <ben@smart-cactus.org> | 2021-04-02 11:52:47 -0400 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-05-05 05:42:38 -0400 |
| commit | 7ffbdc3fa603c6411249ba9b758cf8f109c5fb30 (patch) | |
| tree | 8a05d6e03ce2790e6e59651c824e569fee088d33 /m4/fp_bfd_support.m4 | |
| parent | 6acadb79afe685c635fd255f90551a0fbfcbe3dc (diff) | |
| download | haskell-7ffbdc3fa603c6411249ba9b758cf8f109c5fb30.tar.gz | |
Break up aclocal.m4
Diffstat (limited to 'm4/fp_bfd_support.m4')
| -rw-r--r-- | m4/fp_bfd_support.m4 | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/m4/fp_bfd_support.m4 b/m4/fp_bfd_support.m4 new file mode 100644 index 0000000000..89c051253f --- /dev/null +++ b/m4/fp_bfd_support.m4 @@ -0,0 +1,48 @@ +# FP_BFD_SUPPORT() +# ---------------------- +# whether to use libbfd for debugging RTS +AC_DEFUN([FP_BFD_SUPPORT], [ + AC_SUBST([CabalHaveLibbfd], [False]) + AC_ARG_ENABLE(bfd-debug, + [AS_HELP_STRING([--enable-bfd-debug], + [Enable symbol resolution for -debug rts ('+RTS -Di') via binutils' libbfd [default=no]])], + [ + # don't pollute general LIBS environment + save_LIBS="$LIBS" + AC_CHECK_HEADERS([bfd.h]) + dnl ** check whether this machine has BFD and libiberty installed (used for debugging) + dnl the order of these tests matters: bfd needs libiberty + AC_CHECK_LIB(iberty, xmalloc) + dnl 'bfd_init' is a rare non-macro in libbfd + AC_CHECK_LIB(bfd, bfd_init) + + AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <bfd.h>]], + [[ + /* mimic our rts/Printer.c */ + bfd* abfd; + const char * name; + char **matching; + + name = "some.executable"; + bfd_init(); + abfd = bfd_openr(name, "default"); + bfd_check_format_matches (abfd, bfd_object, &matching); + { + long storage_needed; + storage_needed = bfd_get_symtab_upper_bound (abfd); + } + { + asymbol **symbol_table; + long number_of_symbols; + symbol_info info; + + number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table); + bfd_get_symbol_info(abfd,symbol_table[0],&info); + } + ]])], + [AC_SUBST([CabalHaveLibbfd], [True])],dnl bfd seems to work + [AC_MSG_ERROR([can't use 'bfd' library])]) + LIBS="$save_LIBS" + ] + ) +]) |