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Fix FreeBSD build

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This restores some CPP'd code that was added in
c18911602e and accidentally lost in
2477e4e3b8.

Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
This commit is contained in:
John Ericson 2024-06-12 10:02:20 -04:00
parent e74ce01b7f
commit 7c2981fc55
4 changed files with 36 additions and 8 deletions
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29
src/libexpr/eval.cc
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@ -48,6 +48,9 @@
#define GC_INCLUDE_NEW
#include <pthread.h>
#if __FreeBSD__
# include <pthread_np.h>
#endif
#include <gc/gc.h>
#include <gc/gc_cpp.h>
@ -264,30 +267,42 @@ static BoehmGCStackAllocator boehmGCStackAllocator;
* However, the implementation is quite lean, and usually we don't have active
* coroutines during evaluation, so this is acceptable.
*/
void fixupBoehmStackPointer(void ** sp_ptr, void * pthread_id) {
void fixupBoehmStackPointer(void ** sp_ptr, void * _pthread_id) {
void *& sp = *sp_ptr;
auto pthread_id = reinterpret_cast<pthread_t>(_pthread_id);
pthread_attr_t pattr;
size_t osStackSize;
void * osStackLow;
void * osStackBase;
#ifdef __APPLE__
osStackSize = pthread_get_stacksize_np((pthread_t)pthread_id);
osStackLow = pthread_get_stackaddr_np((pthread_t)pthread_id);
#else
# ifdef __APPLE__
osStackSize = pthread_get_stacksize_np(pthread_id);
osStackLow = pthread_get_stackaddr_np(pthread_id);
# else
if (pthread_attr_init(&pattr)) {
throw Error("fixupBoehmStackPointer: pthread_attr_init failed");
}
if (pthread_getattr_np((pthread_t)pthread_id, &pattr)) {
# ifdef HAVE_PTHREAD_GETATTR_NP
if (pthread_getattr_np(pthread_id, &pattr)) {
throw Error("fixupBoehmStackPointer: pthread_getattr_np failed");
}
# elif HAVE_PTHREAD_ATTR_GET_NP
if (!pthread_attr_init(&pattr)) {
throw Error("fixupBoehmStackPointer: pthread_attr_init failed");
}
if (!pthread_attr_get_np(pthread_id, &pattr)) {
throw Error("fixupBoehmStackPointer: pthread_attr_get_np failed");
}
# else
# error "Need one of `pthread_attr_get_np` or `pthread_getattr_np`"
# endif
if (pthread_attr_getstack(&pattr, &osStackLow, &osStackSize)) {
throw Error("fixupBoehmStackPointer: pthread_attr_getstack failed");
}
if (pthread_attr_destroy(&pattr)) {
throw Error("fixupBoehmStackPointer: pthread_attr_destroy failed");
}
#endif
# endif
osStackBase = (char *)osStackLow + osStackSize;
// NOTE: We assume the stack grows down, as it does on all architectures we support.
// Architectures that grow the stack up are rare.