hello,
can someone help me understand what is going on?
are the -p and -pg options supposed to work?
--------------------------------------------------------------------
# gcc -v
Using built-in specs.
Target: i386-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-libgcj-multifile
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada
--enable-java-awt=gtk --disable-dssi --enable-plugin
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre
--with-cpu=generic --host=i386-redhat-linux
Thread model: posix
gcc version 4.1.1 20061011 (Red Hat 4.1.1-30)
--------------------------------------------------------------------
the C fragment (from menu.c of mplayer)
#define BUF_MIN 128
#define BUF_MAX BUF_STEP*1024
int menu_init(char* cfg_file) {
char* buffer = NULL;
int bl = BUF_STEP, br = 0;
int f, fd;
#ifndef HAVE_FREETYPE
if(vo_font == NULL)
return 0;
#endif
--------------------------------------------------------------------
# cc -c -I. -I.. -Wdeclaration-after-statement -march=pentium2
-mtune=pentium2 -pipe -ffast-math -ggdb -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -I/usr/X11R6/include -pthread
-I/usr/include/kde/artsc -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -o menu.o menu.c
-save-temps
cc: warning: -pipe ignored because -save-temps specified
cc: warning: -pipe ignored because -save-temps specified
# objdump -S -D menu.o -G -C -t -x | less
000003a5 <menu_init>:
/// This will build the menu_defs list from the cfg file
#define BUF_STEP 1024
#define BUF_MIN 128
#define BUF_MAX BUF_STEP*1024
int menu_init(char* cfg_file) {
3a5: 55 push %ebp
3a6: 89 e5 mov %esp,%ebp
3a8: 83 ec 38 sub $0x38,%esp
char* buffer = NULL;
3ab: c7 45 e8 00 00 00 00 movl $0x0,0xffffffe8(%ebp)
int bl = BUF_STEP, br = 0;
3b2: c7 45 ec 00 04 00 00 movl $0x400,0xffffffec(%ebp)
3b9: c7 45 f0 00 00 00 00 movl $0x0,0xfffffff0(%ebp)
int f, fd;
#ifndef HAVE_FREETYPE
if(vo_font == NULL)
return 0;
#endif
--------------------------------------------------------------------
now repeat above with extra "-p" flag
# cc -c -I. -I.. -Wdeclaration-after-statement -march=pentium2
-mtune=pentium2 -pipe -ffast-math -ggdb -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -I/usr/X11R6/include -pthread
-I/usr/include/kde/artsc -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -o menu.o menu.c
-save-temps -p
cc: warning: -pipe ignored because -save-temps specified
cc: warning: -pipe ignored because -save-temps specified
# objdump -S -D menu.o -G -C -t -x | less
/// This will build the menu_defs list from the cfg file
#define BUF_STEP 1024
#define BUF_MIN 128
#define BUF_MAX BUF_STEP*1024
int menu_init(char* cfg_file) {
3aa: 55 push %ebp
3ab: 89 e5 mov %esp,%ebp
3ad: 83 ec 38 sub $0x38,%esp
3b0: e8 00 00 00 00 call 3b5 <menu_init+0xb>
3b1: R_386_PC32 .bss
char* buffer = NULL;
3b5: c7 45 e8 00 00 00 00 movl $0x0,0xffffffe8(%ebp)
int bl = BUF_STEP, br = 0;
3bc: c7 45 ec 00 04 00 00 movl $0x400,0xffffffec(%ebp)
3c3: c7 45 f0 00 00 00 00 movl $0x0,0xfffffff0(%ebp)
int f, fd;
#ifndef HAVE_FREETYPE
if(vo_font == NULL)
return 0;
#endif
now WTF is the line 3b0 ???
ideas?
--------------------------------------------------------------------
--
Adam Sulmicki
http://www.eax.com The Supreme Headquarters of the 32 bit registers
