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| author | Nathan Sidwell <nathan@acm.org> | 2014-09-07 18:09:34 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2014-09-07 18:09:34 +0000 |
| commit | 71c3e2ef094abfc96239472fb1d2dbdc48ecdc7c (patch) | |
| tree | 746435996c27c2a979ed8e5cc74b20e06ea204cd /libgcc | |
| parent | 2ce145f58fb481b37be633a46d54a477d5856e29 (diff) | |
| download | gcc-71c3e2ef094abfc96239472fb1d2dbdc48ecdc7c.zip gcc-71c3e2ef094abfc96239472fb1d2dbdc48ecdc7c.tar.gz gcc-71c3e2ef094abfc96239472fb1d2dbdc48ecdc7c.tar.bz2 | |
libgcov-interface.c (STRONG_ALIAS): Rename to ...
* libgcov-interface.c (STRONG_ALIAS): Rename to ...
(ALIAS_weak): ... here. Use forwarding function. Adjust uses.
From-SVN: r215005
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/ChangeLog | 5 | ||||
| -rw-r--r-- | libgcc/libgcov-interface.c | 13 |
2 files changed, 13 insertions, 5 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 01b5883..4ab05ef 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,8 @@ +2014-09-07 Nathan sidwell <nathan@acm.org> + + * libgcov-interface.c (STRONG_ALIAS): Rename to ... + (ALIAS_weak): ... here. Use forwarding function. Adjust uses. + 2014-09-05 Joseph Myers <joseph@codesourcery.com> * Makefile.in (CRTSTUFF_CFLAGS): Add -fbuilding-libgcc. diff --git a/libgcc/libgcov-interface.c b/libgcc/libgcov-interface.c index 76d3f97..e4026899 100644 --- a/libgcc/libgcov-interface.c +++ b/libgcc/libgcov-interface.c @@ -42,11 +42,14 @@ void __gcov_dump (void) {} #else - /* Some functions we want to bind in this dynamic object, but have an - overridable global alias. */ -#define STRONG_ALIAS(src,dst) \ - extern __typeof (src) dst __attribute__((alias (#src))) + overridable global alias. Unfortunately not all targets support + aliases, so we just have a forwarding function. That'll be tail + called, so the cost is a single jump instruction.*/ + +#define ALIAS_void_fn(src,dst) \ + void dst (void) \ + { src (); } extern __gthread_mutex_t __gcov_flush_mx ATTRIBUTE_HIDDEN; extern __gthread_mutex_t __gcov_flush_mx ATTRIBUTE_HIDDEN; @@ -133,7 +136,7 @@ __gcov_reset_int (void) __gcov_root.dumped = 0; } -STRONG_ALIAS (__gcov_reset_int, __gcov_reset); +ALIAS_void_fn (__gcov_reset_int, __gcov_reset); #endif /* L_gcov_reset */ |