bfd/
* elf64-ppc.c (maybe_strip_output): New function. (ppc64_elf_size_stubs): Use it to strip .branch_lt and .eh_frame. ld/testsuite/ * ld-powerpc/tlsexe.r: Update for stripped .branch_lt. * ld-powerpc/tlsexetoc.r: Likewise. * ld-powerpc/tlsso.r: Likewise. * ld-powerpc/tlstocso.r: Likewise.
This commit is contained in:
Alan Modra
parent
43e1669b2d
commit
d969d15f50
@ -1,3 +1,8 @@
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2011-08-05 Alan Modra <amodra@gmail.com>
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* elf64-ppc.c (maybe_strip_output): New function.
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(ppc64_elf_size_stubs): Use it to strip .branch_lt and .eh_frame.
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2011-08-05 Alan Modra <amodra@gmail.com>
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PR ld/12762
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@ -10871,6 +10871,26 @@ static const unsigned char glink_eh_frame_cie[] =
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DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
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};
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/* Stripping output sections is normally done before dynamic section
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symbols have been allocated. This function is called later, and
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handles cases like htab->brlt which is mapped to its own output
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section. */
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static void
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maybe_strip_output (struct bfd_link_info *info, asection *isec)
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{
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if (isec->size == 0
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&& isec->output_section->size == 0
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&& !bfd_section_removed_from_list (info->output_bfd,
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isec->output_section)
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&& elf_section_data (isec->output_section)->dynindx == 0)
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{
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isec->output_section->flags |= SEC_EXCLUDE;
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bfd_section_list_remove (info->output_bfd, isec->output_section);
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info->output_bfd->section_count--;
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}
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}
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/* Determine and set the size of the stub section for a final link.
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The basic idea here is to examine all the relocations looking for
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@ -11251,10 +11271,9 @@ ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size,
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(*htab->layout_sections_again) ();
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}
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/* It would be nice to strip htab->brlt from the output if the
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section is empty, but it's too late. If we strip sections here,
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the dynamic symbol table is corrupted since the section symbol
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for the stripped section isn't written. */
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maybe_strip_output (info, htab->brlt);
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if (htab->glink_eh_frame != NULL)
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maybe_strip_output (info, htab->glink_eh_frame);
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return TRUE;
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}
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@ -1,3 +1,10 @@
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2011-08-05 Alan Modra <amodra@gmail.com>
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* ld-powerpc/tlsexe.r: Update for stripped .branch_lt.
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* ld-powerpc/tlsexetoc.r: Likewise.
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* ld-powerpc/tlsso.r: Likewise.
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* ld-powerpc/tlstocso.r: Likewise.
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2011-08-01 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/13048
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@ -20,7 +20,6 @@ Section Headers:
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+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.dynamic +DYNAMIC .* 0+160 10 +WA +4 +0 +8
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+\[[ 0-9]+\] \.branch_lt + PROGBITS .* 0+ 0+ +WA +0 +0 +8
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+\[[ 0-9]+\] \.got +PROGBITS .* 0+30 08 +WA +0 +0 +8
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+\[[ 0-9]+\] \.plt +.*
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+\[[ 0-9]+\] \.shstrtab +.*
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@ -47,7 +46,7 @@ Program Headers:
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+0+ +
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+01 +\.interp
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+02 +\.interp \.hash \.dynsym \.dynstr \.rela\.dyn \.rela\.plt \.text
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+03 +\.tdata \.dynamic (\.branch_lt |)\.got \.plt
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+03 +\.tdata \.dynamic \.got \.plt
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+04 +\.dynamic
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+05 +\.tdata \.tbss
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@ -87,7 +86,6 @@ Symbol table '\.symtab' contains [0-9]+ entries:
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.* SECTION +LOCAL +DEFAULT +10
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.* SECTION +LOCAL +DEFAULT +11
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.* SECTION +LOCAL +DEFAULT +12
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.* SECTION +LOCAL +DEFAULT +13
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.* TLS +LOCAL +DEFAULT +8 gd4
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.* TLS +LOCAL +DEFAULT +8 ld4
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.* TLS +LOCAL +DEFAULT +8 ld5
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@ -20,7 +20,6 @@ Section Headers:
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+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.dynamic +DYNAMIC .* 0+160 10 +WA +4 +0 +8
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+\[[ 0-9]+\] \.branch_lt +PROGBITS .* 0+ 0+ +WA +0 +0 +8
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+\[[ 0-9]+\] \.got +PROGBITS .* 0+58 08 +WA +0 +0 +8
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+\[[ 0-9]+\] \.plt +.*
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+\[[ 0-9]+\] \.shstrtab +.*
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@ -47,7 +46,7 @@ Program Headers:
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+0+ +
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+01 +\.interp
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+02 +\.interp \.hash \.dynsym \.dynstr \.rela\.dyn \.rela\.plt \.text
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+03 +\.tdata \.dynamic (\.branch_lt |)\.got \.plt
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+03 +\.tdata \.dynamic \.got \.plt
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+04 +\.dynamic
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+05 +\.tdata \.tbss
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@ -86,7 +85,6 @@ Symbol table '\.symtab' contains [0-9]+ entries:
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.* SECTION +LOCAL +DEFAULT +10
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.* SECTION +LOCAL +DEFAULT +11
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.* SECTION +LOCAL +DEFAULT +12
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.* SECTION +LOCAL +DEFAULT +13
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.* TLS +LOCAL +DEFAULT +8 gd4
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.* TLS +LOCAL +DEFAULT +8 ld4
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.* TLS +LOCAL +DEFAULT +8 ld5
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@ -94,7 +92,7 @@ Symbol table '\.symtab' contains [0-9]+ entries:
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.* TLS +LOCAL +DEFAULT +8 ie4
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.* TLS +LOCAL +DEFAULT +8 le4
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.* TLS +LOCAL +DEFAULT +8 le5
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.* NOTYPE +LOCAL +DEFAULT +12 \.Lie0
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.* NOTYPE +LOCAL +DEFAULT +11 \.Lie0
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.* OBJECT +LOCAL +DEFAULT +10 _DYNAMIC
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.* (NOTYPE +LOCAL +DEFAULT +7 00000010\.plt_call\.__tls_get_addr(|_opt)\+0|(FUNC|NOTYPE) +LOCAL +DEFAULT +UND \.__tls_get_addr(|_opt))
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.* (NOTYPE +LOCAL +DEFAULT +7 __glink_PLTresolve|NOTYPE +LOCAL +DEFAULT +7 00000010\.plt_call\.__tls_get_addr(|_opt)\+0)
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@ -18,7 +18,6 @@ Section Headers:
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+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.dynamic .*
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+\[[ 0-9]+\] \.branch_lt .*
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+\[[ 0-9]+\] \.got .*
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+\[[ 0-9]+\] \.plt .*
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+\[[ 0-9]+\] \.shstrtab .*
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@ -40,7 +39,7 @@ Program Headers:
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Section to Segment mapping:
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+Segment Sections\.\.\.
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+0+ +\.hash \.dynsym \.dynstr \.rela\.dyn \.rela\.plt \.text
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+01 +\.tdata \.dynamic (\.branch_lt |)\.got \.plt
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+01 +\.tdata \.dynamic .got \.plt
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+02 +\.dynamic
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+03 +\.tdata \.tbss
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@ -101,7 +100,6 @@ Symbol table '\.symtab' contains [0-9]+ entries:
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.* SECTION +LOCAL +DEFAULT +9
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.* SECTION +LOCAL +DEFAULT +10
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.* SECTION +LOCAL +DEFAULT +11
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.* SECTION +LOCAL +DEFAULT +12
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.* TLS +LOCAL +DEFAULT +7 gd4
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.* TLS +LOCAL +DEFAULT +7 ld4
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.* TLS +LOCAL +DEFAULT +7 ld5
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@ -18,7 +18,6 @@ Section Headers:
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+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.dynamic .*
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+\[[ 0-9]+\] \.branch_lt .*
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+\[[ 0-9]+\] \.got .*
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+\[[ 0-9]+\] \.plt .*
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+\[[ 0-9]+\] \.shstrtab .*
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@ -40,7 +39,7 @@ Program Headers:
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Section to Segment mapping:
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+Segment Sections\.\.\.
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+0+ +\.hash \.dynsym \.dynstr \.rela\.dyn \.rela\.plt \.text
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+01 +\.tdata \.dynamic (\.branch_lt |)\.got \.plt
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+01 +\.tdata \.dynamic \.got \.plt
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+02 +\.dynamic
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+03 +\.tdata \.tbss
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@ -96,7 +95,6 @@ Symbol table '\.symtab' contains [0-9]+ entries:
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.* SECTION +LOCAL +DEFAULT +9
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.* SECTION +LOCAL +DEFAULT +10
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.* SECTION +LOCAL +DEFAULT +11
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.* SECTION +LOCAL +DEFAULT +12
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.* TLS +LOCAL +DEFAULT +7 gd4
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.* TLS +LOCAL +DEFAULT +7 ld4
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.* TLS +LOCAL +DEFAULT +7 ld5
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@ -104,7 +102,7 @@ Symbol table '\.symtab' contains [0-9]+ entries:
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.* TLS +LOCAL +DEFAULT +7 ie4
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.* TLS +LOCAL +DEFAULT +7 le4
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.* TLS +LOCAL +DEFAULT +7 le5
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.* NOTYPE +LOCAL +DEFAULT +11 \.Lie0
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.* NOTYPE +LOCAL +DEFAULT +10 \.Lie0
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.* OBJECT +LOCAL +DEFAULT +ABS _DYNAMIC
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.* NOTYPE +LOCAL +DEFAULT +6 00000010\.plt_call\.__tls_get_addr\+0
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.* NOTYPE +LOCAL +DEFAULT +6 __glink_PLTresolve
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