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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-10-28 22:31:06 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-10-28 22:31:06 +0000 |
| commit | 95c4b02aaeba67721e262ff3cc618e62453e6edb (patch) | |
| tree | f7991921f56af47e0a4753b402cdb868e740a0f6 /gcc/invoke.texi | |
| parent | 08337bc31ad32b3be939c6f353d5a32a304dd249 (diff) | |
| download | gcc-95c4b02aaeba67721e262ff3cc618e62453e6edb.tar.gz | |
* Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
(LIBCPP_OBJS): New. Add cppulp.o.
(cppmain, fix-header): Depend on and use libcpp.a.
* configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
of the individual object files.
* objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
last.
* cccp.c (user_label_prefix): New.
(main): Set it off -f*leading-underscore.
(special_symbol): Use it.
* cpplib.c (special_symbol): Likewise.
(cpp_handle_option): Handle -f*leading-underscore.
* cppulp.c: New file.
* output.h (user_label_prefix): Declare it.
* dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
* toplev.c (f_options, main): Handle -f*leading-underscore.
* defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
referencing USER_LABEL_PREFIX directly.
* config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
* m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
* final.c (asm_fprintf): Use user_label_prefix instead.
* arm/thumb.c (thumb_print_operand): Likewise.
* gcc.c (default_compilers): Pass -f*leading-underscore on to
cpp wherever appropriate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@23415 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/invoke.texi')
| -rw-r--r-- | gcc/invoke.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/invoke.texi b/gcc/invoke.texi index 162a1e69a4f..6b041fe38f8 100644 --- a/gcc/invoke.texi +++ b/gcc/invoke.texi @@ -408,6 +408,7 @@ in the following sections. -fverbose-asm -fpack-struct -fstack-check -fargument-alias -fargument-noalias -fargument-noalias-global +-fleading-underscore @end smallexample @end table @@ -5989,6 +5990,14 @@ alias each other and do not alias global storage. Each language will automatically use whatever option is required by the language standard. You should not need to use these options yourself. + +@item -fleading-underscore +This option and its counterpart, -fno-leading-underscore, forcibly +change the way C symbols are represented in the object file. One use +is to help link with legacy assembly code. + +Be warned that you should know what you are doing when invoking this +option, and that not all targets provide complete support for it. @end table @node Environment Variables |