move platform depended include into system.h of libelf

All of these files either #include <system.h> directly or #include "libelfP.h"
And now "libelfP.h also #include <system.h>, so the platform depended include
can be moved to system.h safely

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>

22 files changed, 26 insertions, 39 deletions

diff --git a/libelf/ChangeLog b/libelf/ChangeLog
index 558d795e..1c6c4921 100644
--- a/libelf/ChangeLog
+++ b/libelf/ChangeLog
@@ -1,3 +1,28 @@
+2022-10-16  Yonggang Luo  <luoyonggang@gmail.com>
+
+	* common.h: Remove ar.h, byteswap.h and endian.h.
+	* elf32_checksum.c: Remove endian.h.
+	* elf32_getphdr.c: Remove unistd.h and system.h.
+	* elf32_getshdr.c: Remove unistd.h.h and system.h.
+	* elf32_updatefile.c: Remove unistd.h, sys/mman.h and system.h.
+	* elf32_updatenull.c: Remove endian.h and system.h.
+	* elf32_xlatetof.c: Remove endian.h.
+	* elf32_xlatetom.c: Likewise.
+	* elf_begin.c: Remove unistd.h, sys/mman.h and system.h.
+	* elf_cntl.c: Remove unistd.h.
+	* elf_compress.c: Remove system.h and unistd.h.
+	* elf_end.c: Remove sys.mman.h.
+	* elf_getarsym.c: Remove byteswap.h, endian.h, unistd.h and
+	system.h.
+	* elf_getdata.c: Remove unistd.h and system.h.
+	* elf_getdata_rawchunk.c: Remove unistd.h and system.h.
+	* elf_getshdrstrndx.c: Likewise.
+	* elf_readall.c: Likewise.
+	* elf_update.c: Remove unistd.h and sys/mman.h.
+	* gelf_xlate.c: Remove byteswap.h.
+	* libelfP.h: Add system.h.
+	* nlist.c: Remove unistd.h.
+
 2022-08-28  Mark Wielaard  <mark@klomp.org>
 
 	* elf_begin.c (__libelf_next_arhdr_wrlock): Add OCT_FIELD macro,
diff --git a/libelf/common.h b/libelf/common.h
index 3718b3fd..4561854f 100644
--- a/libelf/common.h
+++ b/libelf/common.h
@@ -30,9 +30,6 @@
 #ifndef _COMMON_H
 #define _COMMON_H       1
 
-#include <ar.h>
-#include <byteswap.h>
-#include <endian.h>
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/libelf/elf32_checksum.c b/libelf/elf32_checksum.c
index c5f27bbe..521668a7 100644
--- a/libelf/elf32_checksum.c
+++ b/libelf/elf32_checksum.c
@@ -32,7 +32,6 @@
 #endif
 
 #include <assert.h>
-#include <endian.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <string.h>
diff --git a/libelf/elf32_getphdr.c b/libelf/elf32_getphdr.c
index 99b4ac09..4bfca24b 100644
--- a/libelf/elf32_getphdr.c
+++ b/libelf/elf32_getphdr.c
@@ -34,10 +34,8 @@
 #include <errno.h>
 #include <stdbool.h>
 #include <stdlib.h>
-#include <unistd.h>
 #include <assert.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
diff --git a/libelf/elf32_getshdr.c b/libelf/elf32_getshdr.c
index 237d9122..fc696302 100644
--- a/libelf/elf32_getshdr.c
+++ b/libelf/elf32_getshdr.c
@@ -34,9 +34,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <stdbool.h>
-#include <unistd.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
diff --git a/libelf/elf32_updatefile.c b/libelf/elf32_updatefile.c
index 1ff58900..46afa1f4 100644
--- a/libelf/elf32_updatefile.c
+++ b/libelf/elf32_updatefile.c
@@ -37,10 +37,7 @@
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <sys/mman.h>
 
-#include <system.h>
 #include "libelfP.h"
 
 
diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c
index d0d4d1eb..6c06e5e4 100644
--- a/libelf/elf32_updatenull.c
+++ b/libelf/elf32_updatenull.c
@@ -32,12 +32,10 @@
 #endif
 
 #include <assert.h>
-#include <endian.h>
 #include <libelf.h>
 #include <stdbool.h>
 #include <string.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "elf-knowledge.h"
 
diff --git a/libelf/elf32_xlatetof.c b/libelf/elf32_xlatetof.c
index 082d833f..377659c8 100644
--- a/libelf/elf32_xlatetof.c
+++ b/libelf/elf32_xlatetof.c
@@ -32,7 +32,6 @@
 #endif
 
 #include <assert.h>
-#include <endian.h>
 #include <string.h>
 
 #include "libelfP.h"
diff --git a/libelf/elf32_xlatetom.c b/libelf/elf32_xlatetom.c
index cb0bb8d5..fa3dc9a7 100644
--- a/libelf/elf32_xlatetom.c
+++ b/libelf/elf32_xlatetom.c
@@ -32,7 +32,6 @@
 #endif
 
 #include <assert.h>
-#include <endian.h>
 #include <string.h>
 
 #include "libelfP.h"
diff --git a/libelf/elf_begin.c b/libelf/elf_begin.c
index 71eb3594..fe8c640a 100644
--- a/libelf/elf_begin.c
+++ b/libelf/elf_begin.c
@@ -39,11 +39,8 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <string.h>
-#include <unistd.h>
-#include <sys/mman.h>
 #include <sys/stat.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
diff --git a/libelf/elf_cntl.c b/libelf/elf_cntl.c
index fd681789..04aa9132 100644
--- a/libelf/elf_cntl.c
+++ b/libelf/elf_cntl.c
@@ -31,8 +31,6 @@
 # include <config.h>
 #endif
 
-#include <unistd.h>
-
 #include "libelfP.h"
 
 
diff --git a/libelf/elf_compress.c b/libelf/elf_compress.c
index df0144e8..d7f53af2 100644
--- a/libelf/elf_compress.c
+++ b/libelf/elf_compress.c
@@ -31,14 +31,12 @@
 #endif
 
 #include <libelf.h>
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include <zlib.h>
 
 /* Cleanup and return result.  Don't leak memory.  */
diff --git a/libelf/elf_end.c b/libelf/elf_end.c
index 160f0b88..5c451f36 100644
--- a/libelf/elf_end.c
+++ b/libelf/elf_end.c
@@ -34,7 +34,6 @@
 #include <assert.h>
 #include <stddef.h>
 #include <stdlib.h>
-#include <sys/mman.h>
 
 #include "libelfP.h"
 
diff --git a/libelf/elf_getarsym.c b/libelf/elf_getarsym.c
index 05ebf6a9..2203521f 100644
--- a/libelf/elf_getarsym.c
+++ b/libelf/elf_getarsym.c
@@ -32,16 +32,12 @@
 #endif
 
 #include <assert.h>
-#include <byteswap.h>
-#include <endian.h>
 #include <errno.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
-#include <system.h>
 #include <dl-hash.h>
 #include "libelfP.h"
 
diff --git a/libelf/elf_getdata.c b/libelf/elf_getdata.c
index a704aae3..5ebd270f 100644
--- a/libelf/elf_getdata.c
+++ b/libelf/elf_getdata.c
@@ -35,10 +35,8 @@
 #include <errno.h>
 #include <stddef.h>
 #include <string.h>
-#include <unistd.h>
 
 #include "libelfP.h"
-#include <system.h>
 #include "common.h"
 #include "elf-knowledge.h"
 
diff --git a/libelf/elf_getdata_rawchunk.c b/libelf/elf_getdata_rawchunk.c
index 2f55cbb4..5a35ccdc 100644
--- a/libelf/elf_getdata_rawchunk.c
+++ b/libelf/elf_getdata_rawchunk.c
@@ -35,9 +35,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
diff --git a/libelf/elf_getshdrstrndx.c b/libelf/elf_getshdrstrndx.c
index ad884fd3..2391317b 100644
--- a/libelf/elf_getshdrstrndx.c
+++ b/libelf/elf_getshdrstrndx.c
@@ -35,9 +35,7 @@
 #include <errno.h>
 #include <gelf.h>
 #include <stddef.h>
-#include <unistd.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
diff --git a/libelf/elf_readall.c b/libelf/elf_readall.c
index 0a3a233d..d0f9a28c 100644
--- a/libelf/elf_readall.c
+++ b/libelf/elf_readall.c
@@ -32,10 +32,8 @@
 #endif
 
 #include <errno.h>
-#include <unistd.h>
 #include <sys/stat.h>
 
-#include <system.h>
 #include "libelfP.h"
 #include "common.h"
 
diff --git a/libelf/elf_update.c b/libelf/elf_update.c
index 97ca9ca9..56af3a1c 100644
--- a/libelf/elf_update.c
+++ b/libelf/elf_update.c
@@ -33,8 +33,6 @@
 
 #include <libelf.h>
 #include <fcntl.h>
-#include <unistd.h>
-#include <sys/mman.h>
 #include <sys/stat.h>
 
 #include "libelfP.h"
diff --git a/libelf/gelf_xlate.c b/libelf/gelf_xlate.c
index 6f8c57b7..d8ad0634 100644
--- a/libelf/gelf_xlate.c
+++ b/libelf/gelf_xlate.c
@@ -32,7 +32,6 @@
 # include <config.h>
 #endif
 
-#include <byteswap.h>
 #include <stdint.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/libelf/libelfP.h b/libelf/libelfP.h
index 56331f45..d88a613c 100644
--- a/libelf/libelfP.h
+++ b/libelf/libelfP.h
@@ -39,6 +39,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <system.h>
 
 /* Helper Macros to write 32 bit and 64 bit functions.  */
 #define __elfw2_(Bits, Name) __elf##Bits##_##Name
diff --git a/libelf/nlist.c b/libelf/nlist.c
index 8593c1de..b3d60435 100644
--- a/libelf/nlist.c
+++ b/libelf/nlist.c
@@ -35,7 +35,6 @@
 #include <gelf.h>
 #include <libelf.h>
 #include <nlist.h>
-#include <unistd.h>
 
 #include "libelfP.h"