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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.
This commit is contained in:
Sergei Trofimovich 2022-06-27 13:27:24 +01:00
parent 26f77c4d19
commit 3b21c21f3f
5 changed files with 5 additions and 0 deletions
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1
gcc/cp/mapper-client.cc
View File

@ -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"

1
gcc/cp/mapper-resolver.cc
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@ -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

1
gcc/cp/module.cc
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@ -206,6 +206,7 @@ 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"

1
libcc1/libcc1plugin.cc
View File

@ -31,6 +31,7 @@
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
#define INCLUDE_MEMORY
#include "gcc-plugin.h"
#include "system.h"
#include "coretypes.h"

1
libcc1/libcp1plugin.cc
View File

@ -32,6 +32,7 @@
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
#define INCLUDE_MEMORY
#include "gcc-plugin.h"
#include "system.h"
#include "coretypes.h"