diff options
Diffstat (limited to 'gdb/configure.in')
| -rw-r--r-- | gdb/configure.in | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gdb/configure.in b/gdb/configure.in index 2392617..fe068ef 100644 --- a/gdb/configure.in +++ b/gdb/configure.in @@ -413,6 +413,7 @@ AC_CHECK_HEADERS(sys/ptrace.h ptrace.h) AC_CHECK_HEADERS(sys/reg.h sys/debugreg.h) AC_CHECK_HEADERS(sys/select.h) AC_CHECK_HEADERS(sys/syscall.h) +AC_CHECK_HEADERS(sys/types.h) AC_CHECK_HEADERS(sys/user.h) AC_CHECK_HEADERS(sys/wait.h wait.h) AC_CHECK_HEADERS(termios.h termio.h sgtty.h) @@ -447,6 +448,7 @@ AC_MSG_RESULT($gdb_cv_have_struct_stat_with_st_blocks_member) if test $gdb_cv_have_struct_stat_with_st_blocks_member = yes; then AC_DEFINE(HAVE_STRUCT_STAT_ST_BLOCKS) fi + # ------------------------- # # Checks for declarations. # # ------------------------- # @@ -482,6 +484,69 @@ AC_CHECK_FUNCS(sigaction sigprocmask sigsetmask) AC_CHECK_FUNCS(socketpair) AC_CHECK_FUNCS(syscall) +# Check the return and argument types of ptrace. No canned test for +# this, so roll our own. +gdb_ptrace_headers=' +#if HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif +#if HAVE_SYS_PTRACE_H +# include <sys/ptrace.h> +#endif +#if HAVE_UNISTD_H +# include <unistd.h> +#endif +' +# There is no point in checking if we don't have a prototype. +gcc_AC_CHECK_DECLS(ptrace, , [ + : ${gdb_cv_func_ptrace_ret='int'} + : ${gdb_cv_func_ptrace_args='int,int,long,long'} +], $gdb_ptrace_headers) +# Check return type. +AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret, + AC_TRY_COMPILE($gdb_ptrace_headers, + [extern long ptrace ();], + gdb_cv_func_ptrace_ret='long', + gdb_cv_func_ptrace_ret='int')) +AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret, + [Define as the return type of ptrace.]) +# Check argument types. +AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [ +for gdb_arg1 in 'int' 'long'; do + for gdb_arg2 in 'pid_t' 'int' 'long'; do + for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do + for gdb_arg4 in 'int' 'long'; do + AC_TRY_COMPILE($gdb_ptrace_headers, [ +extern $gdb_cv_func_ptrace_ret + ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4); +], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4"; + break 4;]) + for gdb_arg5 in 'int *' 'int' 'long'; do + AC_TRY_COMPILE($gdb_ptrace_headers, [ +extern $gdb_cv_func_ptrace_ret + ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5); +], [ +gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5"; + break 5;]) + done + done + done + done +done +# Provide a safe default value. +: ${gdb_cv_func_ptrace_args='int,int,long,long'} +]) +ac_save_IFS=$IFS; IFS=',' +set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'` +IFS=$ac_save_IFS +shift +AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, ($[3]), + [Define to the type of arg 3 for ptrace.]) +if test -n "$[5]"; then + AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, ($[5]), + [Define to the type of arg 5 for ptrace.]) +fi + dnl AC_FUNC_SETPGRP does not work when cross compiling dnl Instead, assume we will have a prototype for setpgrp if cross compiling. if test "$cross_compiling" = no; then |