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libc: Add madvise stub

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This commit is contained in:
apio 2023-10-15 13:09:56 +02:00
parent 7db6e0163a
commit 2134dcc5ec
Signed by: apio
GPG Key ID: B8A7D06E42258954
2 changed files with 12 additions and 0 deletions
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6
libc/include/sys/mman.h
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@ -14,6 +14,9 @@
#define MS_ASYNC 2 #define MS_ASYNC 2
#define MS_INVALIDATE 4 #define MS_INVALIDATE 4
#define MADV_NORMAL 0
#define MADV_RANDOM 1
#ifdef __cplusplus #ifdef __cplusplus
extern "C" extern "C"
{ {
@ -28,6 +31,9 @@ extern "C"
/* Write modified shared memory back to its associated file. */ /* Write modified shared memory back to its associated file. */
int msync(void* addr, size_t len, int flags); int msync(void* addr, size_t len, int flags);
/* Give advice about the use of memory. */
int madvise(void* addr, size_t length, int advice);
/* Create a new POSIX shared memory object. */ /* Create a new POSIX shared memory object. */
int shm_open(const char* name, int oflag, mode_t mode); int shm_open(const char* name, int oflag, mode_t mode);

6
libc/src/sys/mman.cpp
View File

@ -28,6 +28,12 @@ extern "C"
__errno_return(rc, int); __errno_return(rc, int);
} }
int madvise(void*, size_t, int)
{
// FIXME: Use this information to improve performance.
return 0;
}
int shm_open(const char* name, int oflag, mode_t mode) int shm_open(const char* name, int oflag, mode_t mode)
{ {
char buf[BUFSIZ]; char buf[BUFSIZ];