mirror of
https://sourceware.org/git/glibc.git
synced 2025-07-28 00:21:52 +03:00
Reduce <limits.h> pollution due to dynamic PTHREAD_STACK_MIN
<limits.h> used to be a header file with no declarations. GCC's libgomp includes it in a #pragma GCC visibility hidden block. Including <unistd.h> from <limits.h> (indirectly) declares everything in <unistd.h> with hidden visibility, resulting in linker failures. This commit avoids C declarations in assembler mode and only declares __sysconf in <limits.h> (and not the entire contents of <unistd.h>). The __sysconf symbol is already part of the ABI. PTHREAD_STACK_MIN is no longer defined for __USE_DYNAMIC_STACK_SIZE && __ASSEMBLER__ because there is no possible definition. Additionally, PTHREAD_STACK_MIN is now defined by <pthread.h> for __USE_MISC because this is what developers expect based on the macro name. It also helps to avoid libgomp linker failures in GCC because libgomp includes <pthread.h> before its visibility hacks. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
@ -0,0 +1,7 @@
|
||||
/* Don't define PTHREAD_STACK_MIN to __sysconf (_SC_THREAD_STACK_MIN)
|
||||
for glibc build. */
|
||||
#ifdef _ISOMAC
|
||||
# include <sysdeps/unix/sysv/linux/bits/pthread_stack_min-dynamic.h>
|
||||
#else
|
||||
# include <bits/pthread_stack_min.h>
|
||||
#endif
|
Reference in New Issue
Block a user