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newlib-cygwin/winsup/cygwin/cygmalloc.h

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* Makefile.in: Add support for new malloc.o and renamed malloc_wrapper.o. Use -fomit-frame-pointer for malloc.o compilation. * malloc_wrapper.cc: New file. Rename from malloc.cc. Add support for more malloc functions. Eliminate export_* calls. Just use straight malloc names. Remove unused argument from malloc lock functions. * cygwin.din: Just export straight malloc names. Add malloc_stats, malloc_trim, malloc_usable_size, mallopt, memalign, valloc. * dcrt0.cc (__cygwin_user): Eliminate export_* malloc entries. * fork.cc (fork_parent): Remove unused argument from malloc_lock argument. * malloc.cc: New file. Doug Lea's malloc v2.7.1. * cygmalloc.h: New file. * include/cygwin/version.h: Bump API_MINOR. * sync.h (muto::acquire): Use appropriate number for regparm attribute. (muto::reset): Ditto. (muto::release): Ditto.
2002-08-17 03:41:39 +08:00
/* cygmalloc.h: cygwin DLL malloc stuff
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
* include/cygwin/version.h: Bump DLL minor number to 8. * cygmalloc.h: Make more concessions to attempts to get debugging malloc working. * debug.h: Ditto. * dlmalloc.cc: Ditto. * dlmalloc.h: Ditto. * malloc_wrapper.cc: Ditto. * perthread.h (perthread::create): Use calloc to ensure zeroed memory.
2004-01-21 03:36:35 +08:00
#ifdef __cplusplus
extern "C" {
#endif
* Merge in cygwin-64bit-branch.
2013-04-23 17:44:36 +08:00
#include "regparm.h"
Throughout, change __attribute__ ((regparm (N))) to just __regN. Throughout, (mainly in fhandler*) start fixing gcc 4.7.2 mismatch between regparm definitions and declarations. * gendef: Define some functions to take @ declaration to accommodate _regN defines which use __stdcall. * gentls_offsets: Define __regN macros as empty. * autoload.cc (wsock_init): Remove unneeded regparm attribute. * winsup.h (__reg1): Define. (__reg2): Define. (__reg3): Define. * advapi32.cc (DuplicateTokenEx): Coerce some initializers to avoid warnings from gcc 4.7.2. * exceptions.cc (status_info): Declare struct to use NTSTATUS. (cygwin_exception::dump_exception): Coerce e->ExceptionCode to NTSTATUS. * fhandler_clipboard.cc (cygnativeformat): Redefine as UINT to avoid gcc 4.7.2 warnings. (fhandler_dev_clipboard::read): Ditto.
2013-01-21 12:34:52 +08:00
void __reg1 dlfree (void *p);
* Merge in cygwin-64bit-branch.
2013-04-23 17:44:36 +08:00
void __reg1 *dlmalloc (size_t size);
void __reg2 *dlrealloc (void *p, size_t size);
Throughout, change __attribute__ ((regparm (N))) to just __regN. Throughout, (mainly in fhandler*) start fixing gcc 4.7.2 mismatch between regparm definitions and declarations. * gendef: Define some functions to take @ declaration to accommodate _regN defines which use __stdcall. * gentls_offsets: Define __regN macros as empty. * autoload.cc (wsock_init): Remove unneeded regparm attribute. * winsup.h (__reg1): Define. (__reg2): Define. (__reg3): Define. * advapi32.cc (DuplicateTokenEx): Coerce some initializers to avoid warnings from gcc 4.7.2. * exceptions.cc (status_info): Declare struct to use NTSTATUS. (cygwin_exception::dump_exception): Coerce e->ExceptionCode to NTSTATUS. * fhandler_clipboard.cc (cygnativeformat): Redefine as UINT to avoid gcc 4.7.2 warnings. (fhandler_dev_clipboard::read): Ditto.
2013-01-21 12:34:52 +08:00
void __reg2 *dlcalloc (size_t nmemb, size_t size);
void __reg2 *dlmemalign (size_t alignment, size_t bytes);
void __reg1 *dlvalloc (size_t bytes);
size_t __reg1 dlmalloc_usable_size (void *p);
int __reg1 dlmalloc_trim (size_t);
int __reg2 dlmallopt (int p, int v);
* include/cygwin/version.h: Bump DLL minor number to 8. * cygmalloc.h: Make more concessions to attempts to get debugging malloc working. * debug.h: Ditto. * dlmalloc.cc: Ditto. * dlmalloc.h: Ditto. * malloc_wrapper.cc: Ditto. * perthread.h (perthread::create): Use calloc to ensure zeroed memory.
2004-01-21 03:36:35 +08:00
void dlmalloc_stats ();
* Makefile.in: Add support for new malloc.o and renamed malloc_wrapper.o. Use -fomit-frame-pointer for malloc.o compilation. * malloc_wrapper.cc: New file. Rename from malloc.cc. Add support for more malloc functions. Eliminate export_* calls. Just use straight malloc names. Remove unused argument from malloc lock functions. * cygwin.din: Just export straight malloc names. Add malloc_stats, malloc_trim, malloc_usable_size, mallopt, memalign, valloc. * dcrt0.cc (__cygwin_user): Eliminate export_* malloc entries. * fork.cc (fork_parent): Remove unused argument from malloc_lock argument. * malloc.cc: New file. Doug Lea's malloc v2.7.1. * cygmalloc.h: New file. * include/cygwin/version.h: Bump API_MINOR. * sync.h (muto::acquire): Use appropriate number for regparm attribute. (muto::reset): Ditto. (muto::release): Ditto.
2002-08-17 03:41:39 +08:00
* Merge in cygwin-64bit-branch.
2013-04-23 17:44:36 +08:00
#ifdef __x86_64__
#define MALLOC_ALIGNMENT ((size_t)16U)
#endif
Only define __getreent inline function when building newlib or Cygwin Commit 6f3943b erroneously removed the `#ifdef _COMPILING_NEWLIB' guarding the __getreent inline function. This patch ignored the fact that config.h is included when building applications, and the code in question requires internal, auto-generated headers to be available which are not exposed to user-space. Reinstantiate defined(_COMPILING_NEWLIB) test and alternatively check for defined (__INSIDE_CYGWIN__), otherwise we'd have to reinstantiate the __getreent macro in cygtls.h which is really confusing. While testing it turned out that a low number of source codes inside Cygwin won't see the inline __getreent due to a missing __INSIDE_CYGWIN__ definition. For malloc.cc this was actually deliberate to get different definitions from including cygmalloc.h. Change this by defining __INSIDE_CYGWIN__ in malloc.cc but changing the test in cygmalloc.h to test for defined(DLMALLOC_VERSION). This might need a change if we ever get around to replace dlmalloc with a newer, more threading-aware malloc implementation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-08-20 22:03:14 +08:00
#if defined (DLMALLOC_VERSION) /* Building malloc.cc */
* cygmalloc.h (__set_ENOMEM): Declare. (MALLOC_FAILURE_ACTION): Call __set_ENOMEM. * malloc_wrapper.cc (malloc) Remove setting errno here. (realloc): Ditto. (calloc): Ditto. (memalign): Ditto. (valloc): Ditto. (posix_memalign): Save and restore errno.
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extern "C" void __set_ENOMEM ();
* Merge in cygwin-64bit-branch.
2013-04-23 17:44:36 +08:00
void *mmap64 (void *, size_t, int, int, int, off_t);
Only define __getreent inline function when building newlib or Cygwin Commit 6f3943b erroneously removed the `#ifdef _COMPILING_NEWLIB' guarding the __getreent inline function. This patch ignored the fact that config.h is included when building applications, and the code in question requires internal, auto-generated headers to be available which are not exposed to user-space. Reinstantiate defined(_COMPILING_NEWLIB) test and alternatively check for defined (__INSIDE_CYGWIN__), otherwise we'd have to reinstantiate the __getreent macro in cygtls.h which is really confusing. While testing it turned out that a low number of source codes inside Cygwin won't see the inline __getreent due to a missing __INSIDE_CYGWIN__ definition. For malloc.cc this was actually deliberate to get different definitions from including cygmalloc.h. Change this by defining __INSIDE_CYGWIN__ in malloc.cc but changing the test in cygmalloc.h to test for defined(DLMALLOC_VERSION). This might need a change if we ever get around to replace dlmalloc with a newer, more threading-aware malloc implementation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-08-20 22:03:14 +08:00
# define mmap mmap64
* cygmalloc.h (__set_ENOMEM): Declare. (MALLOC_FAILURE_ACTION): Call __set_ENOMEM. * malloc_wrapper.cc (malloc) Remove setting errno here. (realloc): Ditto. (calloc): Ditto. (memalign): Ditto. (valloc): Ditto. (posix_memalign): Save and restore errno.
2007-02-08 19:35:52 +08:00
# define MALLOC_FAILURE_ACTION __set_ENOMEM ()
* sigproc.cc (sigCONT): Define. * sigproc.h (sigCONT): Declare. (wait_sig): Create sigCONT event here. * exceptions.cc (sig_handle_tty_stop): Wait for sigCONT event rather than stopping thread. (sig_handle): Set sigCONT event as appropriate on SIGCONT rather than calling ResumeThread.
2002-08-18 12:13:57 +08:00
# define USE_DL_PREFIX 1
Only define __getreent inline function when building newlib or Cygwin Commit 6f3943b erroneously removed the `#ifdef _COMPILING_NEWLIB' guarding the __getreent inline function. This patch ignored the fact that config.h is included when building applications, and the code in question requires internal, auto-generated headers to be available which are not exposed to user-space. Reinstantiate defined(_COMPILING_NEWLIB) test and alternatively check for defined (__INSIDE_CYGWIN__), otherwise we'd have to reinstantiate the __getreent macro in cygtls.h which is really confusing. While testing it turned out that a low number of source codes inside Cygwin won't see the inline __getreent due to a missing __INSIDE_CYGWIN__ definition. For malloc.cc this was actually deliberate to get different definitions from including cygmalloc.h. Change this by defining __INSIDE_CYGWIN__ in malloc.cc but changing the test in cygmalloc.h to test for defined(DLMALLOC_VERSION). This might need a change if we ever get around to replace dlmalloc with a newer, more threading-aware malloc implementation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-08-20 22:03:14 +08:00
#elif defined (__INSIDE_CYGWIN__)
Cygwin: convert malloc lock to SRWLOCK Per https://cygwin.com/pipermail/cygwin-developers/2021-October/012429.html, we may encounter a crash when starting multiple threads during process startup (here: fhandler_fifo::fixup_after_{fork,exec}) which in turn allocate memory via malloc. The problem is concurrent usage of malloc before the malloc muto has been initialized. To fix this issue, convert the muto to a SRWLOCK and make sure it is statically initalized. Thus, malloc can be called as early as necessary and malloc_init is only required to check for user space provided malloc. Note that this requires to implement a __malloc_trylock macro to be called from fork. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-10-26 23:53:08 +08:00
# define __malloc_lock() AcquireSRWLockExclusive (&mallock)
# define __malloc_trylock() TryAcquireSRWLockExclusive (&mallock)
# define __malloc_unlock() ReleaseSRWLockExclusive (&mallock)
extern SRWLOCK NO_COPY mallock;
void malloc_init ();
Only define __getreent inline function when building newlib or Cygwin Commit 6f3943b erroneously removed the `#ifdef _COMPILING_NEWLIB' guarding the __getreent inline function. This patch ignored the fact that config.h is included when building applications, and the code in question requires internal, auto-generated headers to be available which are not exposed to user-space. Reinstantiate defined(_COMPILING_NEWLIB) test and alternatively check for defined (__INSIDE_CYGWIN__), otherwise we'd have to reinstantiate the __getreent macro in cygtls.h which is really confusing. While testing it turned out that a low number of source codes inside Cygwin won't see the inline __getreent due to a missing __INSIDE_CYGWIN__ definition. For malloc.cc this was actually deliberate to get different definitions from including cygmalloc.h. Change this by defining __INSIDE_CYGWIN__ in malloc.cc but changing the test in cygmalloc.h to test for defined(DLMALLOC_VERSION). This might need a change if we ever get around to replace dlmalloc with a newer, more threading-aware malloc implementation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-08-20 22:03:14 +08:00
* Makefile.in: Add support for new malloc.o and renamed malloc_wrapper.o. Use -fomit-frame-pointer for malloc.o compilation. * malloc_wrapper.cc: New file. Rename from malloc.cc. Add support for more malloc functions. Eliminate export_* calls. Just use straight malloc names. Remove unused argument from malloc lock functions. * cygwin.din: Just export straight malloc names. Add malloc_stats, malloc_trim, malloc_usable_size, mallopt, memalign, valloc. * dcrt0.cc (__cygwin_user): Eliminate export_* malloc entries. * fork.cc (fork_parent): Remove unused argument from malloc_lock argument. * malloc.cc: New file. Doug Lea's malloc v2.7.1. * cygmalloc.h: New file. * include/cygwin/version.h: Bump API_MINOR. * sync.h (muto::acquire): Use appropriate number for regparm attribute. (muto::reset): Ditto. (muto::release): Ditto.
2002-08-17 03:41:39 +08:00
#endif
Only define __getreent inline function when building newlib or Cygwin Commit 6f3943b erroneously removed the `#ifdef _COMPILING_NEWLIB' guarding the __getreent inline function. This patch ignored the fact that config.h is included when building applications, and the code in question requires internal, auto-generated headers to be available which are not exposed to user-space. Reinstantiate defined(_COMPILING_NEWLIB) test and alternatively check for defined (__INSIDE_CYGWIN__), otherwise we'd have to reinstantiate the __getreent macro in cygtls.h which is really confusing. While testing it turned out that a low number of source codes inside Cygwin won't see the inline __getreent due to a missing __INSIDE_CYGWIN__ definition. For malloc.cc this was actually deliberate to get different definitions from including cygmalloc.h. Change this by defining __INSIDE_CYGWIN__ in malloc.cc but changing the test in cygmalloc.h to test for defined(DLMALLOC_VERSION). This might need a change if we ever get around to replace dlmalloc with a newer, more threading-aware malloc implementation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-08-20 22:03:14 +08:00
* include/cygwin/version.h: Bump DLL minor number to 8. * cygmalloc.h: Make more concessions to attempts to get debugging malloc working. * debug.h: Ditto. * dlmalloc.cc: Ditto. * dlmalloc.h: Ditto. * malloc_wrapper.cc: Ditto. * perthread.h (perthread::create): Use calloc to ensure zeroed memory.
2004-01-21 03:36:35 +08:00
#ifdef __cplusplus
}
#endif