Commit 7da3d06f authored by Dave Love's avatar Dave Love
Browse files

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parent ff7de4ee
......@@ -89,138 +89,138 @@ raid:/nfs/raid/src/dist-18.56/src> dump -h temacs
temacs:
**** SECTION HEADER TABLE ****
[No] Type Flags Addr Offset Size Name
[No] Type Flags Addr Offset Size Name
Link Info Adralgn Entsize
[1] 1 2 0x80480d4 0xd4 0x13 .interp
[1] 1 2 0x80480d4 0xd4 0x13 .interp
0 0 0x1 0
[2] 5 2 0x80480e8 0xe8 0x388 .hash
[2] 5 2 0x80480e8 0xe8 0x388 .hash
3 0 0x4 0x4
[3] 11 2 0x8048470 0x470 0x7f0 .dynsym
[3] 11 2 0x8048470 0x470 0x7f0 .dynsym
4 1 0x4 0x10
[4] 3 2 0x8048c60 0xc60 0x3ad .dynstr
[4] 3 2 0x8048c60 0xc60 0x3ad .dynstr
0 0 0x1 0
[5] 9 2 0x8049010 0x1010 0x338 .rel.plt
[5] 9 2 0x8049010 0x1010 0x338 .rel.plt
3 7 0x4 0x8
[6] 1 6 0x8049348 0x1348 0x3 .init
[6] 1 6 0x8049348 0x1348 0x3 .init
0 0 0x4 0
[7] 1 6 0x804934c 0x134c 0x680 .plt
[7] 1 6 0x804934c 0x134c 0x680 .plt
0 0 0x4 0x4
[8] 1 6 0x80499cc 0x19cc 0x3c56f .text
[8] 1 6 0x80499cc 0x19cc 0x3c56f .text
0 0 0x4 0
[9] 1 6 0x8085f3c 0x3df3c 0x3 .fini
[9] 1 6 0x8085f3c 0x3df3c 0x3 .fini
0 0 0x4 0
[10] 1 2 0x8085f40 0x3df40 0x69c .rodata
[10] 1 2 0x8085f40 0x3df40 0x69c .rodata
0 0 0x4 0
[11] 1 2 0x80865dc 0x3e5dc 0xd51 .rodata1
[11] 1 2 0x80865dc 0x3e5dc 0xd51 .rodata1
0 0 0x4 0
[12] 1 3 0x8088330 0x3f330 0x20afc .data
[12] 1 3 0x8088330 0x3f330 0x20afc .data
0 0 0x4 0
[13] 1 3 0x80a8e2c 0x5fe2c 0x89d .data1
[13] 1 3 0x80a8e2c 0x5fe2c 0x89d .data1
0 0 0x4 0
[14] 1 3 0x80a96cc 0x606cc 0x1a8 .got
[14] 1 3 0x80a96cc 0x606cc 0x1a8 .got
0 0 0x4 0x4
[15] 6 3 0x80a9874 0x60874 0x80 .dynamic
[15] 6 3 0x80a9874 0x60874 0x80 .dynamic
4 0 0x4 0x8
[16] 8 3 0x80a98f4 0x608f4 0x449c .bss
[16] 8 3 0x80a98f4 0x608f4 0x449c .bss
0 0 0x4 0
[17] 2 0 0 0x608f4 0x9b90 .symtab
[17] 2 0 0 0x608f4 0x9b90 .symtab
18 371 0x4 0x10
[18] 3 0 0 0x6a484 0x8526 .strtab
[18] 3 0 0 0x6a484 0x8526 .strtab
0 0 0x1 0
[19] 3 0 0 0x729aa 0x93 .shstrtab
[19] 3 0 0 0x729aa 0x93 .shstrtab
0 0 0x1 0
[20] 1 0 0 0x72a3d 0x68b7 .comment
[20] 1 0 0 0x72a3d 0x68b7 .comment
0 0 0x1 0
raid:/nfs/raid/src/dist-18.56/src> dump -h xemacs
raid:/nfs/raid/src/dist-18.56/src> dump -h xemacs
xemacs:
xemacs:
**** SECTION HEADER TABLE ****
[No] Type Flags Addr Offset Size Name
[No] Type Flags Addr Offset Size Name
Link Info Adralgn Entsize
[1] 1 2 0x80480d4 0xd4 0x13 .interp
[1] 1 2 0x80480d4 0xd4 0x13 .interp
0 0 0x1 0
[2] 5 2 0x80480e8 0xe8 0x388 .hash
[2] 5 2 0x80480e8 0xe8 0x388 .hash
3 0 0x4 0x4
[3] 11 2 0x8048470 0x470 0x7f0 .dynsym
[3] 11 2 0x8048470 0x470 0x7f0 .dynsym
4 1 0x4 0x10
[4] 3 2 0x8048c60 0xc60 0x3ad .dynstr
[4] 3 2 0x8048c60 0xc60 0x3ad .dynstr
0 0 0x1 0
[5] 9 2 0x8049010 0x1010 0x338 .rel.plt
[5] 9 2 0x8049010 0x1010 0x338 .rel.plt
3 7 0x4 0x8
[6] 1 6 0x8049348 0x1348 0x3 .init
[6] 1 6 0x8049348 0x1348 0x3 .init
0 0 0x4 0
[7] 1 6 0x804934c 0x134c 0x680 .plt
[7] 1 6 0x804934c 0x134c 0x680 .plt
0 0 0x4 0x4
[8] 1 6 0x80499cc 0x19cc 0x3c56f .text
[8] 1 6 0x80499cc 0x19cc 0x3c56f .text
0 0 0x4 0
[9] 1 6 0x8085f3c 0x3df3c 0x3 .fini
[9] 1 6 0x8085f3c 0x3df3c 0x3 .fini
0 0 0x4 0
[10] 1 2 0x8085f40 0x3df40 0x69c .rodata
[10] 1 2 0x8085f40 0x3df40 0x69c .rodata
0 0 0x4 0
[11] 1 2 0x80865dc 0x3e5dc 0xd51 .rodata1
[11] 1 2 0x80865dc 0x3e5dc 0xd51 .rodata1
0 0 0x4 0
[12] 1 3 0x8088330 0x3f330 0x20afc .data
[12] 1 3 0x8088330 0x3f330 0x20afc .data
0 0 0x4 0
[13] 1 3 0x80a8e2c 0x5fe2c 0x89d .data1
[13] 1 3 0x80a8e2c 0x5fe2c 0x89d .data1
0 0 0x4 0
[14] 1 3 0x80a96cc 0x606cc 0x1a8 .got
[14] 1 3 0x80a96cc 0x606cc 0x1a8 .got
0 0 0x4 0x4
[15] 6 3 0x80a9874 0x60874 0x80 .dynamic
[15] 6 3 0x80a9874 0x60874 0x80 .dynamic
4 0 0x4 0x8
[16] 8 3 0x80c6800 0x7d800 0 .bss
[16] 8 3 0x80c6800 0x7d800 0 .bss
0 0 0x4 0
[17] 2 0 0 0x7d800 0x9b90 .symtab
[17] 2 0 0 0x7d800 0x9b90 .symtab
18 371 0x4 0x10
[18] 3 0 0 0x87390 0x8526 .strtab
[18] 3 0 0 0x87390 0x8526 .strtab
0 0 0x1 0
[19] 3 0 0 0x8f8b6 0x93 .shstrtab
[19] 3 0 0 0x8f8b6 0x93 .shstrtab
0 0 0x1 0
[20] 1 0 0 0x8f949 0x68b7 .comment
[20] 1 0 0 0x8f949 0x68b7 .comment
0 0 0x1 0
[21] 1 3 0x80a98f4 0x608f4 0x1cf0c .data
[21] 1 3 0x80a98f4 0x608f4 0x1cf0c .data
0 0 0x4 0
* This is an example of how the file header is changed. "Shoff" is
......@@ -232,31 +232,31 @@ raid:/nfs/raid/src/dist-18.56/src> dump -h xemacs
* "Shentsz" are the program and section header entries sizes respectively.
* These can be larger than the apparent struct sizes.
raid:/nfs/raid/src/dist-18.56/src> dump -f temacs
raid:/nfs/raid/src/dist-18.56/src> dump -f temacs
temacs:
temacs:
**** ELF HEADER ****
Class Data Type Machine Version
Entry Phoff Shoff Flags Ehsize
Phentsize Phnum Shentsz Shnum Shstrndx
Class Data Type Machine Version
Entry Phoff Shoff Flags Ehsize
Phentsize Phnum Shentsz Shnum Shstrndx
1 1 2 3 1
0x80499cc 0x34 0x792f4 0 0x34
0x20 5 0x28 21 19
1 1 2 3 1
0x80499cc 0x34 0x792f4 0 0x34
0x20 5 0x28 21 19
raid:/nfs/raid/src/dist-18.56/src> dump -f xemacs
raid:/nfs/raid/src/dist-18.56/src> dump -f xemacs
xemacs:
xemacs:
**** ELF HEADER ****
Class Data Type Machine Version
Entry Phoff Shoff Flags Ehsize
Phentsize Phnum Shentsz Shnum Shstrndx
Class Data Type Machine Version
Entry Phoff Shoff Flags Ehsize
Phentsize Phnum Shentsz Shnum Shstrndx
1 1 2 3 1
0x80499cc 0x34 0x96200 0 0x34
0x20 5 0x28 22 19
1 1 2 3 1
0x80499cc 0x34 0x96200 0 0x34
0x20 5 0x28 22 19
* These are the program headers. "Offset" is the file offset to the
* segment. "Vaddr" is the memory load address. "Filesz" is the
......@@ -264,49 +264,49 @@ Phentsize Phnum Shentsz Shnum Shstrndx
* memory. Below, the third segment is the code and the fourth is the
* data: the difference between Filesz and Memsz is .bss
raid:/nfs/raid/src/dist-18.56/src> dump -o temacs
raid:/nfs/raid/src/dist-18.56/src> dump -o temacs
temacs:
temacs:
***** PROGRAM EXECUTION HEADER *****
Type Offset Vaddr Paddr
Filesz Memsz Flags Align
Type Offset Vaddr Paddr
Filesz Memsz Flags Align
6 0x34 0x8048034 0
0xa0 0xa0 5 0
6 0x34 0x8048034 0
0xa0 0xa0 5 0
3 0xd4 0 0
0x13 0 4 0
3 0xd4 0 0
0x13 0 4 0
1 0x34 0x8048034 0
0x3f2f9 0x3f2f9 5 0x1000
1 0x34 0x8048034 0
0x3f2f9 0x3f2f9 5 0x1000
1 0x3f330 0x8088330 0
0x215c4 0x25a60 7 0x1000
1 0x3f330 0x8088330 0
0x215c4 0x25a60 7 0x1000
2 0x60874 0x80a9874 0
0x80 0 7 0
2 0x60874 0x80a9874 0
0x80 0 7 0
raid:/nfs/raid/src/dist-18.56/src> dump -o xemacs
raid:/nfs/raid/src/dist-18.56/src> dump -o xemacs
xemacs:
xemacs:
***** PROGRAM EXECUTION HEADER *****
Type Offset Vaddr Paddr
Filesz Memsz Flags Align
Type Offset Vaddr Paddr
Filesz Memsz Flags Align
6 0x34 0x8048034 0
0xa0 0xa0 5 0
6 0x34 0x8048034 0
0xa0 0xa0 5 0
3 0xd4 0 0
0x13 0 4 0
3 0xd4 0 0
0x13 0 4 0
1 0x34 0x8048034 0
0x3f2f9 0x3f2f9 5 0x1000
1 0x34 0x8048034 0
0x3f2f9 0x3f2f9 5 0x1000
1 0x3f330 0x8088330 0
0x3e4d0 0x3e4d0 7 0x1000
1 0x3f330 0x8088330 0
0x3e4d0 0x3e4d0 7 0x1000
2 0x60874 0x80a9874 0
0x80 0 7 0
2 0x60874 0x80a9874 0
0x80 0 7 0
*/
......@@ -336,70 +336,70 @@ Filesz Memsz Flags Align
* The above example now should look like:
**** SECTION HEADER TABLE ****
[No] Type Flags Addr Offset Size Name
[No] Type Flags Addr Offset Size Name
Link Info Adralgn Entsize
[1] 1 2 0x80480d4 0xd4 0x13 .interp
[1] 1 2 0x80480d4 0xd4 0x13 .interp
0 0 0x1 0
[2] 5 2 0x80480e8 0xe8 0x388 .hash
[2] 5 2 0x80480e8 0xe8 0x388 .hash
3 0 0x4 0x4
[3] 11 2 0x8048470 0x470 0x7f0 .dynsym
[3] 11 2 0x8048470 0x470 0x7f0 .dynsym
4 1 0x4 0x10
[4] 3 2 0x8048c60 0xc60 0x3ad .dynstr
[4] 3 2 0x8048c60 0xc60 0x3ad .dynstr
0 0 0x1 0
[5] 9 2 0x8049010 0x1010 0x338 .rel.plt
[5] 9 2 0x8049010 0x1010 0x338 .rel.plt
3 7 0x4 0x8
[6] 1 6 0x8049348 0x1348 0x3 .init
[6] 1 6 0x8049348 0x1348 0x3 .init
0 0 0x4 0
[7] 1 6 0x804934c 0x134c 0x680 .plt
[7] 1 6 0x804934c 0x134c 0x680 .plt
0 0 0x4 0x4
[8] 1 6 0x80499cc 0x19cc 0x3c56f .text
[8] 1 6 0x80499cc 0x19cc 0x3c56f .text
0 0 0x4 0
[9] 1 6 0x8085f3c 0x3df3c 0x3 .fini
[9] 1 6 0x8085f3c 0x3df3c 0x3 .fini
0 0 0x4 0
[10] 1 2 0x8085f40 0x3df40 0x69c .rodata
[10] 1 2 0x8085f40 0x3df40 0x69c .rodata
0 0 0x4 0
[11] 1 2 0x80865dc 0x3e5dc 0xd51 .rodata1
[11] 1 2 0x80865dc 0x3e5dc 0xd51 .rodata1
0 0 0x4 0
[12] 1 3 0x8088330 0x3f330 0x20afc .data
[12] 1 3 0x8088330 0x3f330 0x20afc .data
0 0 0x4 0
[13] 1 3 0x80a8e2c 0x5fe2c 0x89d .data1
[13] 1 3 0x80a8e2c 0x5fe2c 0x89d .data1
0 0 0x4 0
[14] 1 3 0x80a96cc 0x606cc 0x1a8 .got
[14] 1 3 0x80a96cc 0x606cc 0x1a8 .got
0 0 0x4 0x4
[15] 6 3 0x80a9874 0x60874 0x80 .dynamic
[15] 6 3 0x80a9874 0x60874 0x80 .dynamic
4 0 0x4 0x8
[16] 1 3 0x80a98f4 0x608f4 0x1cf0c .data
[16] 1 3 0x80a98f4 0x608f4 0x1cf0c .data
0 0 0x4 0
[17] 8 3 0x80c6800 0x7d800 0 .bss
[17] 8 3 0x80c6800 0x7d800 0 .bss
0 0 0x4 0
[18] 2 0 0 0x7d800 0x9b90 .symtab
[18] 2 0 0 0x7d800 0x9b90 .symtab
19 371 0x4 0x10
[19] 3 0 0 0x87390 0x8526 .strtab
[19] 3 0 0 0x87390 0x8526 .strtab
0 0 0x1 0
[20] 3 0 0 0x8f8b6 0x93 .shstrtab
[20] 3 0 0 0x8f8b6 0x93 .shstrtab
0 0 0x1 0
[21] 1 0 0 0x8f949 0x68b7 .comment
[21] 1 0 0 0x8f949 0x68b7 .comment
0 0 0x1 0
*/
......@@ -1015,16 +1015,23 @@ unexec (new_name, old_name, data_start, bss_start, entry_address)
/* The conditional bit below was in Oliva's original code
(1999-08-25) and seems to have been dropped by mistake
subsequently. It prevents a crash at startup under X in
`IRIX64 6.5 6.5.17m' with c_dev 7.3.1.3m. It causes no
trouble on the other ELF platforms I could test (Irix
6.5.15m, Solaris 8, Debian Potato x86, Debian Woody
SPARC); however, it's reported to cause crashes under
some version of GNU/Linux. It's not yet clear what's
changed in that Irix version to cause the problem, or why
the fix sometimes fails under GNU/Linux. There's
probably no good reason to have something Irix-specific
here, but this will have to do for now. IRIX6_5 is the
most specific macro we have to test. -- fx 2002-10-01 */
`IRIX64 6.5 6.5.17m', whether compiled on that relase or
an earlier one. It causes no trouble on the other ELF
platforms I could test (Irix 6.5.15m, Solaris 8, Debian
Potato x86, Debian Woody SPARC); however, it's reported
to cause crashes under some version of GNU/Linux. It's
not yet clear what's changed in that Irix version to
cause the problem, or why the fix sometimes fails under
GNU/Linux. There's probably no good reason to have
something Irix-specific here, but this will have to do
for now. IRIX6_5 is the most specific macro we have to
test. -- fx 2002-10-01
The issue _looks_ as though it's gone away on 6.5.18m,
but maybe it's still lurking, to be triggered by some
change in the binary. It appears to concern the dynamic
loader, but I never got anywhere with an SGI support call
seeking clues. -- fx 2002-11-29. */
#ifdef IRIX6_5
|| !strcmp ((old_section_names + NEW_SECTION_H (n).sh_name),
".got")
......
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