[Bug binutils/4007] Linker failed to issue an error on bad section in segment

[hjl at lucon dot org]

------- Additional Comments From hjl at lucon dot org  2007-02-23 13:09 -------
Linker should issue an error when a section is placed into a segment
improperly:

address@hidden objcopy-2]$ cat foo.t
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
PHDRS {
 text PT_LOAD FLAGS(5); /* R_E */
 data PT_LOAD FLAGS(7); /* RWE */
}
SECTIONS
{
  . = 0xC0000000 + ((0x100000 + (0x100000 - 1)) & ~(0x100000 - 1));
  .bar : AT(ADDR(.bar) - 0xC0000000) { *(.bar) } :text
  .bss : AT(ADDR(.bss) - 0xC0000000) { *(.bss) }
  .foo 0 : AT(ADDR(.bss) + SIZEOF(.bss) - 0xC0000000) { *(.foo) } :text
  /DISCARD/ : { *(.*) }
}
address@hidden objcopy-2]$ cat foo.s
        .section .bar,"ax","progbits"
        .byte 0
        .section .foo,"aw","progbits"
        .byte 0
        .bss
        .long 0
address@hidden objcopy-2]$ make copy
as --32  -o foo.o foo.s
./ld -m elf_i386 -o foo -T foo.t foo.o
objcopy foo foo-cpy
BFD: foo-cpy: warning: allocated section `.foo' not in segment
address@hidden objcopy-2]$ make
readelf -lS foo
There are 7 section headers, starting at offset 0x1034:

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .bar              PROGBITS        c0100000 001000 000001 00  AX  0   0  1
  [ 2] .bss              NOBITS          c0100004 001001 000004 00  WA  0   0  4
  [ 3] .foo              PROGBITS        00000000 001008 000001 00  WA  0   0  1
  [ 4] .shstrtab         STRTAB          00000000 001009 00002a 00      0   0  1
  [ 5] .symtab           SYMTAB          00000000 00114c 000040 10      6   4  4
  [ 6] .strtab           STRTAB          00000000 00118c 000001 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings)
  I (info), L (link order), G (group), x (unknown)
  O (extra OS processing required) o (OS specific), p (processor specific)

Elf file type is EXEC (Executable file)
Entry point 0x0
There are 1 program headers, starting at offset 52

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  LOAD           0x001000 0xc0100000 0x00100000 0x00009 0x00010 R E 0x1000

 Section to Segment mapping:
  Segment Sections...
   00     .bar .bss
address@hidden objcopy-2]$

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |
            Summary|problems with linker / strip|Linker failed to issue an
                   |/ BFD                       |error on bad section in
                   |                            |segment
            Version|2.17                        |2.18 (HEAD)


http://sourceware.org/bugzilla/show_bug.cgi?id=4007

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