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| author | merrill <merrill@138bc75d-0d04-0410-961f-82ee72b054a4> | 1996-09-18 11:07:42 +0000 |
|---|---|---|
| committer | merrill <merrill@138bc75d-0d04-0410-961f-82ee72b054a4> | 1996-09-18 11:07:42 +0000 |
| commit | f04f88f267778d68030cadd0c0be39897d3e3859 (patch) | |
| tree | c1c0c371005b3462f1316b5ede3d9d4b901f69bf /gcc/config/svr4.h | |
| parent | f65e35739adb6457a4ef13261589492f8e86e344 (diff) | |
| download | gcc-f04f88f267778d68030cadd0c0be39897d3e3859.tar.gz | |
(MAKE_DECL_ONE_ONLY): Define.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@12736 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/svr4.h')
| -rw-r--r-- | gcc/config/svr4.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/config/svr4.h b/gcc/config/svr4.h index 4332c0fecd1..f39dd15731a 100644 --- a/gcc/config/svr4.h +++ b/gcc/config/svr4.h @@ -639,6 +639,37 @@ do { \ } \ } while (0) +/* A C statement (sans semicolon) to mark DECL to be emitted as a + public symbol such that extra copies in multiple translation units will + be discarded by the linker. */ +#define MAKE_DECL_ONE_ONLY(DECL) \ +do { \ + int len; \ + char *name, *string, *prefix; \ + \ + DECL_WEAK (DECL) = 1; \ + \ + name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); \ + \ + if (DECL_ONE_ONLY (decl)) \ + { \ + if (TREE_CODE (decl) == FUNCTION_DECL) \ + prefix = ".gnu.linkonce.t."; \ + else if (TREE_READONLY (decl)) \ + prefix = ".gnu.linkonce.r."; \ + else \ + prefix = ".gnu.linkonce.d."; \ + } \ + else \ + prefix = ""; \ + \ + len = strlen (name) + strlen (prefix); \ + string = alloca (len + 1); \ + sprintf (string, "%s%s", prefix, name); \ + \ + DECL_SECTION_NAME (DECL) = build_string (len, string); \ +} while (0) + /* A C statement (sans semicolon) to output an element in the table of global constructors. */ #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ |