add_-latomic_to_ghc-prim
commit
ce3897ffd6e7c8b8f36b8e920168bac8c7f836ae
Author: Ilias Tsitsimpis <iliastsi@debian.org>
Date: Tue Sep 18 17:45:17 2018 +0200
Fix check whether GCC supports __atomic_ builtins
Summary:
C11 atomics are never used because:
* The program used for checking whether GCC supports
__atomic_ builtins fails with the following error:
```
error: size mismatch in argument 2 of `__atomic_load`
int test(int *x) { int y; __atomic_load(&x, &y, __ATOMIC_SEQ_CST); return x; }
```
* There is a typo when checking if CONF_GCC_SUPPORTS__ATOMICS equals YES,
resulting in PRIM_CFLAGS and PRIM_EXTRA_LIBRARIES never being set.
Reviewers: bgamari
Reviewed By: bgamari
Subscribers: rwbarton, erikd, carter
Differential Revision: https://phabricator.haskell.org/D5154
Gbp-Pq: Name add_-latomic_to_ghc-prim
fix osReserveHeapMemory block alignment
fix osReserveHeapMemory block alignment
Before the change osReserveHeapMemory() attempted
to allocate chunks of memory via osTryReserveHeapMemory()
not multiple of MBLOCK_SIZE in the following fallback code:
```
if (at == NULL) {
*len -= *len / 8;
```
and caused assertion failure:
```
$ make fulltest TEST=T11607 WAY=threaded1
T11607: internal error: ASSERTION FAILED: file rts/posix/OSMem.c, line 457
(GHC version 8.7.
20180716 for riscv64_unknown_linux)
```
The change applies alignment mask before each MBLOCK allocation attempt
and fixes WAY=threaded1 test failures on qemu-riscv64.
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Test Plan: run 'make fulltest WAY=threaded1'
Reviewers: simonmar, bgamari, erikd
Reviewed By: simonmar
Subscribers: rwbarton, thomie, carter
Differential Revision: https://phabricator.haskell.org/D4982
Gbp-Pq: Name
e175aaf6918bb2b497b83618dc4c270a0d231a1c.patch
projects / ghc.git / log