public inbox for gcc-help@gcc.gnu.org
 help / color / mirror / Atom feed
From: "Gerhard TAEUBL" <GTaeubl@frequentis.com>
To: <gcc-help@gcc.gnu.org>
Subject: realocatable code
Date: Mon, 22 Jan 2001 02:21:00 -0000	[thread overview]
Message-ID: <sa6c16ae.063@mail.frequentis.com> (raw)

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 9116 bytes --]

Hallo!
I have to compiled code realocate able. So I use the following 
makefile:
 
$(BUILD_DIR)/%.o: %.c  $(CC) -g -c -Wall -W -mrelocatable -o 
$@ $< 
 
$(BUILD_DIR)/%.o : %.s  $(AS) -o $@ $< 
 
$(ELF_FILE): $(O_FILES) ../src/$(LINK_FILE)  $(LD) 
-nostartfiles -T ../src/$(LINK_FILE) -Map 
$(MAP_FILE)\        -o $(ELF_FILE) 
$(O_FILES)
 
$(TMP_FILE): $(ELF_FILE)  $(OBJCOPY) --strip-all --strip-debug 
--remove-section .comment\     --output-target binary 
$(ELF_FILE) $(TMP_FILE)
 
$(BIN_FILE): $(TMP_FILE)  $(PERL) $(MODCRC32) $(TMP_FILE) 
$(BUILD_DIR)/lmodule.tmp  $(PERL) $(SBUS_DL) $(BUILD_DIR)/lmodule.tmp 
$(BIN_FILE)  $(RM) $(BUILD_DIR)/lmodule.tmp $(TMP_FILE)
 Well this works fine with:
as 2.8.1
gcc 2.7.2.1
ld 2.8.1
(I know this compiler is a little bit too old.. :-) )
Then I update to:
as 2.9.1
gcc 2.91.57
ld 2.9.1
 
After that I get an error message:
/project/v4/software/ext-tools/egcs-1.1b-newlib/bin/powerpc-eabi-gcc -g 
-c -Wall -W -mrelocatable -o ../build/lmodule.o lmodule.c lmodule.c: In function 
`EventHandler': lmodule.c:267: warning: unused parameter 
`Event' /project/v4/software/ext-tools/egcs-1.1b-newlib/bin/powerpc-eabi-as 
-o ../build/iotable.o iotable.s 
/project/v4/software/ext-tools/egcs-1.1b-newlib/bin/powerpc-eabi-ld 
-nostartfiles -r -T ../src/lmodule.lnk -Map 
../build/lmodule.map\       -o 
../build/lmodule.elf  ../build/lmodule.o  
../build/iotable.o /project/v4/software/ext-tools/egcs-1.1b-newlib/bin/powerpc-eabi-ld: 
../build/lmodule.o: compiled with -mrelocatable and linked with modules compiled 
normally Bad value: failed to merge target specific data of file 
../build/lmodule.o make: *** [../build/lmodule.elf] Error 1
If I use the old linker everthing is fine, so whats wrong?
 
Here is the linker file:
ENTRY( InitModule)
 
OUTPUT_FORMAT("elf32-powerpc", 
"elf32-powerpc",               
"elf32-powerpc") OUTPUT_ARCH(powerpc)
 
SECTIONS {    .iotable :    
{       
../build/iotable.o(.data)         
}
 
   .text :    
{       
../build/lmodule.o(.text)       
*(.text)       /* .gnu.warning sections are handled 
specially by elf32.em.  */       
*(.gnu.warning)    } =0
 
__IMAGE_START = ADDR(.text); __TSTRAM_START = 
__IMAGE_START;
 
   
.init              
: { *(.init)          } 
=0    
.fini              
: { *(.fini)          } 
=0
 
   /* Read-only sections, merged into text segment: 
*/    
.interp            : { 
*(.interp)        }    
.hash              
: { *(.hash)          
}    
.dynsym            : { 
*(.dynsym)        }    
.dynstr            : { 
*(.dynstr)        }    
.rela.text         : { 
*(.rela.text)     }    
.rela.data         : { 
*(.rela.data)     }    
.rela.rodata       : { *(.rela.rodata)   
}    
.rela.got          : { 
*(.rela.got)      }    
.rela.got1         : { 
*(.rela.got1)     }    
.rela.got2         : { 
*(.rela.got2)     }    
.rela.ctors        : { 
*(.rela.ctors)    }    
.rela.dtors        : { 
*(.rela.dtors)    }    
.rela.init         : { 
*(.rela.init)     }    
.rela.fini         : { 
*(.rela.fini)     }    
.rela.bss          : { 
*(.rela.bss)      }    
.rela.plt          : { 
*(.rela.plt)      }    
.rela.sdata        : { 
*(.rela.sdata2)   }    
.rela.sbss         : { 
*(.rela.sbss2)    }    
.rela.sdata2       : { *(.rela.sdata2)   
}    .rela.sbss2        : { 
*(.rela.sbss2)    }    
.plt               
: { *(.plt)           
}
 
   
.rodata            : { 
*(.rodata)        }    
.rodata1           : { 
*(.rodata1)       }
 
   
.sdata2            : { 
*(.sdata2)        }    
.sbss2             : 
{ *(.sbss2)         }
 
__DATA_RAM = .; __DATA_ROM = __DATA_RAM;
 
   
.data              
:    {       
*(.data)       CONSTRUCTORS    
}    
.data1             : 
{ *(.data1)         }    
.got1              
: { *(.got1)          
}    
.dynamic           : { 
*(.dynamic)       }    /* Put .ctors 
and .dtors next to the .got2 section, so that the 
pointers       get relocated with -mrelocatable. 
Also put in the .fixup pointers.       The current 
compiler no longer needs this, but keep it around for 2.7.2  
*/    PROVIDE (_GOT2_START_ = .);    
.got2              
:  { *(.got2)         
}    PROVIDE (__CTOR_LIST__ = .);    
.ctors             : 
{ *(.ctors)         }    
PROVIDE (__CTOR_END__ = .);    PROVIDE (__DTOR_LIST__ = 
.);    
.dtors             : 
{ *(.dtors)         }    
PROVIDE (__DTOR_END__ = .);    PROVIDE (_FIXUP_START_ = 
.);    
.fixup             : 
{ *(.fixup)         }    
PROVIDE (_FIXUP_END_ = .);    PROVIDE (_GOT2_END_ = 
.);    PROVIDE (_GOT_START_ = .);    
.got               
: { *(.got)           
}    
.got.plt           : { 
*(.got.plt)       }    PROVIDE 
(_GOT_END_ = .);    /* We want the small data sections together, so 
single-instruction offsets       can access them 
all, and initialized data all before uninitialized, 
so       we can shorten the on-disk segment 
size.  */    
.sdata             : 
{ *(.sdata)         }
 
__DATA_END      = 
.; __IMAGE_SIZE    = __DATA_END - 
__IMAGE_START; __BSS_START     = .;
 
   
.sbss              
:    {       
*(.sbss)       *(.scommon)    
}    
.bss               
:    {       
*(.dynbss)       
*(.bss)       *(COMMON)    }
 
__BSS_END       = .;
 
   /* These are needed for ELF backends which have not yet 
been       converted to the new style linker.  
*/    
.stab           0  : { 
*(.stab)          }    
.stabstr        0  : { 
*(.stabstr)       }
 
   /* DWARF debug sections.       
Symbols in the .debug DWARF section are relative to the beginning of 
the       section so we begin .debug at 0.  
It's not clear yet what needs to happen       for 
the others.   */    
.debug          0 : { 
*(.debug)          
}    .debug_srcinfo  0 : { *(.debug_srcinfo)  
}    .debug_aranges  0 : { *(.debug_aranges)  
}    .debug_pubnames 0 : { *(.debug_pubnames) }    
.debug_sfnames  0 : { *(.debug_sfnames)  }    
.line           0 : { 
*(.line)           
} }
 
Could anyone help me?
Thanks
Gerhard


                 reply	other threads:[~2001-01-22  2:21 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=sa6c16ae.063@mail.frequentis.com \
    --to=gtaeubl@frequentis.com \
    --cc=gcc-help@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).