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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-04-07 17:15:56 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-05-13 10:54:41 -0300 |
| commit | 6fad891dfd5236002a2e64e26279c1d6dfa79565 (patch) | |
| tree | 6258506ca4e1fd0d9e88a2a0c551984d5e644acd /include/signal.h | |
| parent | 900fa2573671d692ed245f76aa3f05cec462be0c (diff) | |
| download | glibc-6fad891dfd5236002a2e64e26279c1d6dfa79565.zip glibc-6fad891dfd5236002a2e64e26279c1d6dfa79565.tar.gz glibc-6fad891dfd5236002a2e64e26279c1d6dfa79565.tar.bz2 | |
stdio: Remove the usage of $(fno-unit-at-a-time) for siglist.c
The siglist.c is built with -fno-toplevel-reorder to avoid compiler
to reorder the compat assembly directives due an assembler
issue [1] (fixed on 2.39).
This patch removes the compiler flags by split the compat symbol
generation in two phases. First the __sys_siglist and __sys_sigabbrev
without any compat symbol directive is preprocessed to generate an
assembly source code. This generate assembly is then used as input
on a platform agnostic siglist.S which then creates the compat
definitions. This prevents compiler to move any compat directive
prior the _sys_errlist definition itself.
Checked on a make check run-built-tests=no on all affected ABIs.
Reviewed-by: Fangrui Song <maskray@google.com>
Diffstat (limited to 'include/signal.h')
| -rw-r--r-- | include/signal.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/include/signal.h b/include/signal.h index 2a27869..73f18dd 100644 --- a/include/signal.h +++ b/include/signal.h @@ -14,10 +14,8 @@ libc_hidden_proto (__sigpause) libc_hidden_proto (raise) libc_hidden_proto (__libc_current_sigrtmin) libc_hidden_proto (__libc_current_sigrtmax) -extern const char * const __sys_siglist[_NSIG]; -libc_hidden_proto (__sys_siglist) -extern const char * const __sys_sigabbrev[_NSIG]; -libc_hidden_proto (__sys_sigabbrev) +extern const char * const __sys_siglist[_NSIG] attribute_hidden; +extern const char * const __sys_sigabbrev[_NSIG] attribute_hidden; /* Now define the internal interfaces. */ extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler); |