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| author | Bernhard Schommer <bschommer@users.noreply.github.com> | 2019-05-10 14:46:05 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2019-05-10 14:46:05 +0200 |
| commit | 1eaf745c5e4e32784a8e919b1a82d4d725036214 (patch) | |
| tree | 475f1f146d9fc8937b6b7e5e866141dc7a9c2ab2 /backend/PrintAsmaux.ml | |
| parent | 1e821bc1f1fb7a6b73ff1468b8b34f61b78cf304 (diff) | |
| download | compcert-kvx-1eaf745c5e4e32784a8e919b1a82d4d725036214.tar.gz compcert-kvx-1eaf745c5e4e32784a8e919b1a82d4d725036214.zip | |
Added options -fcommon and -fno-common (#164)
The option -fcommon controls whether uninitialized global
variables are placed in the COMMON section. If the option is given
in the negated form, -fno-common, variables are not placed in the
COMMON section. They are placed in the same sections as gcc does.
If the variables are not placed in the COMMON section merging of
tentative definitions is inhibited and multiple definitions lead
to a linker error, as it does for gcc.
Diffstat (limited to 'backend/PrintAsmaux.ml')
| -rw-r--r-- | backend/PrintAsmaux.ml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/backend/PrintAsmaux.ml b/backend/PrintAsmaux.ml index 0fd164b0..7e075f04 100644 --- a/backend/PrintAsmaux.ml +++ b/backend/PrintAsmaux.ml @@ -298,3 +298,11 @@ let print_version_and_options oc comment = fprintf oc " %s" Commandline.argv.(i) done; fprintf oc "\n" +(** Get the name of the common section if it is used otherwise the given section + name, with bss as default *) + +let common_section ?(sec = ".bss") () = + if !Clflags.option_fcommon then + "COMM" + else + sec |