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* [gcc r12-8539] c++: avoid <memory> poisoning on musl [PR106102]
@ 2022-07-02 15:22 Sergei Trofimovich
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From: Sergei Trofimovich @ 2022-07-02 15:22 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:de6f402a54f7e6a3f8a79d723a25724e6274cc3e
commit r12-8539-gde6f402a54f7e6a3f8a79d723a25724e6274cc3e
Author: Sergei Trofimovich <siarheit@google.com>
Date: Mon Jun 27 13:27:24 2022 +0100
c++: avoid <memory> poisoning on musl [PR106102]
On musl <pthread.h> uses calloc() (via <sched.h>). <memory> includes
it indirectly and exposes use of poisoned calloc() when module code
is built:
/build/build/./prev-gcc/xg++ ... ../../gcc-13-20220626/gcc/cp/mapper-resolver.cc
In file included from /<<NIX>>/musl-1.2.3-dev/include/pthread.h:30,
from /build/build/prev-x86_64-unknown-linux-musl/libstdc++-v3/include/x86_64-unknown-linux-musl/bits/gthr-default.h:35,
....
from /build/build/prev-x86_64-unknown-linux-musl/libstdc++-v3/include/memory:77,
from ../../gcc-13-20220626/gcc/../libcody/cody.hh:24,
from ../../gcc-13-20220626/gcc/cp/../../c++tools/resolver.h:25,
from ../../gcc-13-20220626/gcc/cp/../../c++tools/resolver.cc:23,
from ../../gcc-13-20220626/gcc/cp/mapper-resolver.cc:32:
/<<NIX>>/musl-1.2.3-dev/include/sched.h:84:7: error: attempt to use poisoned "calloc"
84 | void *calloc(size_t, size_t);
| ^
/<<NIX>>/musl-1.2.3-dev/include/sched.h:124:36: error: attempt to use poisoned "calloc"
124 | #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n)))
| ^
gcc/cp/
PR c++/106102
* mapper-client.cc: Include <memory> via "system.h".
* mapper-resolver.cc: Ditto.
* module.cc: Ditto.
libcc1/
PR c++/106102
* libcc1plugin.cc: Include <memory> via "system.h".
* libcp1plugin.cc: Ditto.
(cherry picked from commit 3b21c21f3f5726823e19728fdd1571a14aae0fb3)
Diff:
---
gcc/cp/mapper-client.cc | 1 +
gcc/cp/mapper-resolver.cc | 1 +
gcc/cp/module.cc | 1 +
libcc1/libcc1plugin.cc | 1 +
libcc1/libcp1plugin.cc | 1 +
5 files changed, 5 insertions(+)
diff --git a/gcc/cp/mapper-client.cc b/gcc/cp/mapper-client.cc
index 8603a886a09..fe9544b5ba4 100644
--- a/gcc/cp/mapper-client.cc
+++ b/gcc/cp/mapper-client.cc
@@ -27,6 +27,7 @@ along with GCC; see the file COPYING3. If not see
#define INCLUDE_STRING
#define INCLUDE_VECTOR
#define INCLUDE_MAP
+#define INCLUDE_MEMORY
#include "system.h"
#include "line-map.h"
diff --git a/gcc/cp/mapper-resolver.cc b/gcc/cp/mapper-resolver.cc
index e3d29fb5ada..e70d1b4ae2c 100644
--- a/gcc/cp/mapper-resolver.cc
+++ b/gcc/cp/mapper-resolver.cc
@@ -25,6 +25,7 @@ along with GCC; see the file COPYING3. If not see
#define INCLUDE_VECTOR
#define INCLUDE_ALGORITHM
#define INCLUDE_MAP
+#define INCLUDE_MEMORY
#include "system.h"
// We don't want or need to be aware of networking
diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc
index cebf9c35c1d..5c5d02bb523 100644
--- a/gcc/cp/module.cc
+++ b/gcc/cp/module.cc
@@ -202,6 +202,7 @@ Classes used:
#define _DEFAULT_SOURCE 1 /* To get TZ field of struct tm, if available. */
#include "config.h"
+#define INCLUDE_MEMORY
#define INCLUDE_STRING
#define INCLUDE_VECTOR
#include "system.h"
diff --git a/libcc1/libcc1plugin.cc b/libcc1/libcc1plugin.cc
index 12ab5a57c8d..bdd0bdabe77 100644
--- a/libcc1/libcc1plugin.cc
+++ b/libcc1/libcc1plugin.cc
@@ -31,6 +31,7 @@
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
+#define INCLUDE_MEMORY
#include "gcc-plugin.h"
#include "system.h"
#include "coretypes.h"
diff --git a/libcc1/libcp1plugin.cc b/libcc1/libcp1plugin.cc
index 83dab7f58b1..e2d5039a0a1 100644
--- a/libcc1/libcp1plugin.cc
+++ b/libcc1/libcp1plugin.cc
@@ -32,6 +32,7 @@
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
+#define INCLUDE_MEMORY
#include "gcc-plugin.h"
#include "system.h"
#include "coretypes.h"
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