diff options
| author | Martin Liska <mliska@suse.cz> | 2019-06-10 09:42:22 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2019-06-10 07:42:22 +0000 |
| commit | 3bb0dcb6c02661bed2f8dd00052145fde3bbdecc (patch) | |
| tree | 3bc1bb2c9b037c135bc71c7e925f270cf1325ad6 | |
| parent | 74ac8f1fe98b5126b291b2693e25d99b52f68c58 (diff) | |
| download | gcc-3bb0dcb6c02661bed2f8dd00052145fde3bbdecc.zip gcc-3bb0dcb6c02661bed2f8dd00052145fde3bbdecc.tar.gz gcc-3bb0dcb6c02661bed2f8dd00052145fde3bbdecc.tar.bz2 | |
Add alloc_size for libiberty memory allocation functions.
2019-06-10 Martin Liska <mliska@suse.cz>
* ansidecl.h:
(ATTRIBUTE_RESULT_SIZE_1): Define new macro.
(ATTRIBUTE_RESULT_SIZE_2): Likewise.
(ATTRIBUTE_RESULT_SIZE_1_2): Likewise.
* libiberty.h (xmalloc): Add RESULT_SIZE attribute.
(xrealloc): Likewise.
(xcalloc): Likewise.
From-SVN: r272109
| -rw-r--r-- | include/ChangeLog | 10 | ||||
| -rw-r--r-- | include/ansidecl.h | 25 | ||||
| -rw-r--r-- | include/libiberty.h | 6 |
3 files changed, 38 insertions, 3 deletions
diff --git a/include/ChangeLog b/include/ChangeLog index fe77f86..ad38342 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,13 @@ +2019-06-10 Martin Liska <mliska@suse.cz> + + * ansidecl.h: + (ATTRIBUTE_RESULT_SIZE_1): Define new macro. + (ATTRIBUTE_RESULT_SIZE_2): Likewise. + (ATTRIBUTE_RESULT_SIZE_1_2): Likewise. + * libiberty.h (xmalloc): Add RESULT_SIZE attribute. + (xrealloc): Likewise. + (xcalloc): Likewise. + 2019-04-26 Michael Forney <mforney@mforney.org> * libiberty.h (vasprintf): Don't declare if HAVE_DECL_VASPRINTF diff --git a/include/ansidecl.h b/include/ansidecl.h index 0395c4d..3035c33 100644 --- a/include/ansidecl.h +++ b/include/ansidecl.h @@ -292,6 +292,31 @@ So instead we use the macro below and test it against specific values. */ # endif #endif +/* Attribute `alloc_size' was valid as of gcc 4.3. */ +#ifndef ATTRIBUTE_RESULT_SIZE_1 +# if (GCC_VERSION >= 4003) +# define ATTRIBUTE_RESULT_SIZE_1 __attribute__ ((alloc_size (1))) +# else +# define ATTRIBUTE_RESULT_SIZE_1 +#endif +#endif + +#ifndef ATTRIBUTE_RESULT_SIZE_2 +# if (GCC_VERSION >= 4003) +# define ATTRIBUTE_RESULT_SIZE_2 __attribute__ ((alloc_size (2))) +# else +# define ATTRIBUTE_RESULT_SIZE_2 +#endif +#endif + +#ifndef ATTRIBUTE_RESULT_SIZE_1_2 +# if (GCC_VERSION >= 4003) +# define ATTRIBUTE_RESULT_SIZE_1_2 __attribute__ ((alloc_size (1, 2))) +# else +# define ATTRIBUTE_RESULT_SIZE_1_2 +#endif +#endif + /* We use __extension__ in some places to suppress -pedantic warnings about GCC extensions. This feature didn't work properly before gcc 2.8. */ diff --git a/include/libiberty.h b/include/libiberty.h index e11aa97..0870163 100644 --- a/include/libiberty.h +++ b/include/libiberty.h @@ -310,18 +310,18 @@ extern void xmalloc_failed (size_t) ATTRIBUTE_NORETURN; message to stderr (using the name set by xmalloc_set_program_name, if any) and then call xexit. */ -extern void *xmalloc (size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; +extern void *xmalloc (size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_RESULT_SIZE_1; /* Reallocate memory without fail. This works like xmalloc. Note, realloc type functions are not suitable for attribute malloc since they may return the same address across multiple calls. */ -extern void *xrealloc (void *, size_t) ATTRIBUTE_RETURNS_NONNULL; +extern void *xrealloc (void *, size_t) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_RESULT_SIZE_2; /* Allocate memory without fail and set it to zero. This works like xmalloc. */ -extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; +extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_RESULT_SIZE_1_2; /* Copy a string into a memory buffer without fail. */ |