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Kirill Smelkov
linux
Commits
0dd22e54
Commit
0dd22e54
authored
21 years ago
by
Richard Henderson
Committed by
Richard Henderson
21 years ago
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[PATCH] eliminate warnings in generated module files
The compiler.h fragment should describe the problem well enough.
parent
e53f5fc1
Changes
2
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2 changed files
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19 additions
and
0 deletions
+19
-0
include/linux/compiler.h
include/linux/compiler.h
+17
-0
scripts/modpost.c
scripts/modpost.c
+2
-0
No files found.
include/linux/compiler.h
View file @
0dd22e54
...
@@ -25,6 +25,23 @@
...
@@ -25,6 +25,23 @@
#define __deprecated
#define __deprecated
#endif
#endif
/*
* Allow us to avoid 'defined but not used' warnings on functions and data,
* as well as force them to be emitted to the assembly file.
*
* As of gcc 3.3, static functions that are not marked with attribute((used))
* may be elided from the assembly file. As of gcc 3.3, static data not so
* marked will not be elided, but this may change in a future gcc version.
*
* In prior versions of gcc, such functions and data would be emitted, but
* would be warned about except with attribute((unused)).
*/
#if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3
#define __attribute_used__ __attribute__((__used__))
#else
#define __attribute_used__ __attribute__((__unused__))
#endif
/* This macro obfuscates arithmetic on a variable address so that gcc
/* This macro obfuscates arithmetic on a variable address so that gcc
shouldn't recognize the original var, and make assumptions about it */
shouldn't recognize the original var, and make assumptions about it */
#define RELOC_HIDE(ptr, off) \
#define RELOC_HIDE(ptr, off) \
...
...
This diff is collapsed.
Click to expand it.
scripts/modpost.c
View file @
0dd22e54
...
@@ -384,6 +384,7 @@ add_header(struct buffer *b)
...
@@ -384,6 +384,7 @@ add_header(struct buffer *b)
{
{
buf_printf
(
b
,
"#include <linux/module.h>
\n
"
);
buf_printf
(
b
,
"#include <linux/module.h>
\n
"
);
buf_printf
(
b
,
"#include <linux/vermagic.h>
\n
"
);
buf_printf
(
b
,
"#include <linux/vermagic.h>
\n
"
);
buf_printf
(
b
,
"#include <linux/compiler.h>
\n
"
);
buf_printf
(
b
,
"
\n
"
);
buf_printf
(
b
,
"
\n
"
);
buf_printf
(
b
,
"const char vermagic[]
\n
"
);
buf_printf
(
b
,
"const char vermagic[]
\n
"
);
buf_printf
(
b
,
"__attribute__((section(
\"
__vermagic
\"
))) =
\n
"
);
buf_printf
(
b
,
"__attribute__((section(
\"
__vermagic
\"
))) =
\n
"
);
...
@@ -449,6 +450,7 @@ add_depends(struct buffer *b, struct module *mod, struct module *modules)
...
@@ -449,6 +450,7 @@ add_depends(struct buffer *b, struct module *mod, struct module *modules)
buf_printf
(
b
,
"
\n
"
);
buf_printf
(
b
,
"
\n
"
);
buf_printf
(
b
,
"static const char __module_depends[]
\n
"
);
buf_printf
(
b
,
"static const char __module_depends[]
\n
"
);
buf_printf
(
b
,
"__attribute_used__
\n
"
);
buf_printf
(
b
,
"__attribute__((section(
\"
.modinfo
\"
))) =
\n
"
);
buf_printf
(
b
,
"__attribute__((section(
\"
.modinfo
\"
))) =
\n
"
);
buf_printf
(
b
,
"
\"
depends="
);
buf_printf
(
b
,
"
\"
depends="
);
for
(
s
=
mod
->
unres
;
s
;
s
=
s
->
next
)
{
for
(
s
=
mod
->
unres
;
s
;
s
=
s
->
next
)
{
...
...
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