diff options
Diffstat (limited to 'gdb/configure.ac')
| -rw-r--r-- | gdb/configure.ac | 93 |
1 files changed, 84 insertions, 9 deletions
diff --git a/gdb/configure.ac b/gdb/configure.ac index 226e27e..5292410 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -191,6 +191,16 @@ AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]), ;; esac]) +AC_ARG_ENABLE(binary_file_formats, + AS_HELP_STRING([--enable-binary-file-formats=FORMATS], + [enable support for selected file formats (default 'all') + available formats: coff, dbx, elf, macho, mips, xcoff, all]), +[case "${enableval}" in + yes | "") AC_MSG_ERROR(enable-binary-file-formats option must specify file formats or 'all') + ;; + no) enable_binary_file_formats= ;; + *) enable_binary_file_formats=$enableval ;; +esac], [enable_binary_file_formats=all]) # Check whether to support mdebug/ecoff debug information. AC_ARG_ENABLE(gdb-mdebug-support, @@ -240,10 +250,21 @@ TARGET_OBS= all_targets= HAVE_NATIVE_GCORE_TARGET= +# File formats that will be enabled based on the selected +# target(s). These are chosen because they are required to +# compile one or more of the selected targets. +target_formats= + +# If all targets were requested, this is all formats that should +# accompany them. These are just the ones required for compilation +# to succeed, not the formats suggested based on targets. +all_target_formats="coff xcoff" + for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'` do if test "$targ_alias" = "all"; then all_targets=true + target_formats=$all_target_formats else # Canonicalize the secondary target names. result=`$ac_config_sub $targ_alias 2>/dev/null` @@ -1355,7 +1376,6 @@ AC_SUBST(SRCHIGH_CFLAGS) # Checks for header files. # # ------------------------- # -AC_HEADER_STDC AC_CHECK_HEADERS([ \ IOKit/serial/ioss.h \ asm/termios.h \ @@ -1952,32 +1972,87 @@ fi # Note that WIN32APILIBS is set by GDB_AC_COMMON. WIN32LIBS="$WIN32LIBS $WIN32APILIBS" +# Object files to be used when building with support for all file formats. +# This should not have elf or macho, as support for those formats depends +# on BFD enabling them as well. +all_binary_file_srcs="\$(dbx_SRCS) \$(mips_SRCS) \$(coff_SRCS) \$(xcoff_SRCS)" + +bfd_supports_elf=no # Add ELF support to GDB, but only if BFD includes ELF support. -GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf, +GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_bfd_elf, [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h) -if test "$gdb_cv_var_elf" = yes; then - CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o \ - gcore-elf.o elf-none-tdep.o" +if test "$gdb_cv_var_bfd_elf" = yes; then + CONFIG_OBS="$CONFIG_OBS gcore-elf.o elf-none-tdep.o" AC_DEFINE(HAVE_ELF, 1, [Define if ELF support should be included.]) # -ldl is provided by bfd/Makefile.am (LIBDL) <PLUGINS>. if test "$plugins" = "yes"; then AC_SEARCH_LIBS(dlopen, dl) fi + bfd_supports_elf=yes + all_binary_file_srcs="$all_binary_file_srcs \$(elf_SRCS)" fi # Add macho support to GDB, but only if BFD includes it. -GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho, +bfd_supports_macho=no +GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_bfd_macho, [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h) -if test "$gdb_cv_var_macho" = yes; then - CONFIG_OBS="$CONFIG_OBS machoread.o" +if test "$gdb_cv_var_bfd_macho" = yes; then + bfd_supports_macho=yes + all_binary_file_srcs="$all_binary_file_srcs \$(macho_SRCS)" +fi + +FORMAT_SRCS= + +if test "$enable_binary_file_formats" != "all"; then + # Formats that are required by some requested target(s). + # Warn users that they are added, so no one is surprised. + for req in $target_formats; do + case ,$enable_binary_file_formats, in + *,$req,*) + # Do nothing. + ;; + *) + AC_MSG_WARN("$req is required to support one or more requested targets. Adding it") + enable_binary_file_formats="${enable_binary_file_formats},$req" + ;; + esac + done + + AC_DEFINE_UNQUOTED(SUPPORTED_BINARY_FILE_FORMATS, "$enable_binary_file_formats", + Which binary file formats were requested at configure time. ) fi +enable_binary_file_formats=$(echo $enable_binary_file_formats | sed 's/,/ /g') + +# Go through all requested and required binary file formats to compile +# GDB, and double check that we can compile them. +for format in $enable_binary_file_formats +do + if test "$format" = "elf" && test "$bfd_supports_elf" != "yes"; then + AC_MSG_ERROR("elf support was requested, but BFD does not support it."); + elif test "$format" = "macho" && test "$bfd_supports_macho" != "yes"; then + AC_MSG_ERROR("Mach-O support was requested, but BFD does not support it."); + fi + + if test "$format" = "all"; then + FORMAT_SRCS="$all_binary_file_srcs" + # We don't break here in case the user requested Mach-O or ELF, but + # BFD is not configured to support it. If we were to break, we would + # silently drop the requested support instead of erroring out. + else + fmt=$(echo "$format _SRCS" | sed 's/ //') + FORMAT_SRCS="$FORMAT_SRCS \$($fmt)" + fi +done + +AC_SUBST(FORMAT_SRCS) + # Add any host-specific objects to GDB. CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}" # If building on ELF, look for lzma support for embedded compressed debug info. -if test "$gdb_cv_var_elf" = yes; then +if test "$gdb_cv_var_bfd_elf" = yes; then AC_ARG_WITH(lzma, AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]), [], [with_lzma=auto]) |