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third_party_elfutils/libelf
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Mark Wielaard 77482c4bf6 libelf: Use posix_fallocate instead of ftruncate to extend ELF file. 
This fixes an obscure SIGBUS error when using ELF_C_WRITE_MMAP on an ELF
file that needs extending when the underlying file system is (nearly) full.

Use posix_fallocate to make sure the file content is really there. Using
ftruncate might mean the file is extended, but space isn't allocated yet.
This might cause a SIGBUS once we write into the mmapped space and the disk
is full.

Using fallocate might fail on some file systems. posix_fallocate is
required to extend the file and allocate enough space even if the
underlying filesystem would normally return EOPNOTSUPP or the kernel
doesn't implement the fallocate syscall. Also posix_fallocate has been in
glibc since 2.1.94, while support for fallocate was only added in 2.10
and kernel 2.6.23.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
2015-05-27 17:10:48 +02:00
..
abstract.h
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2012-06-05 23:12:05 +02:00
ChangeLog
libelf: Use posix_fallocate instead of ftruncate to extend ELF file.
2015-05-27 17:10:48 +02:00
common.h
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2012-06-05 23:12:05 +02:00
dl-hash.h
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2012-06-05 23:12:05 +02:00
elf32_checksum.c
elf32_checksum.c: Removed unused ebl_debugscn_p define and confusing comment.
2012-08-14 16:48:50 +02:00
elf32_fsize.c
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2012-06-05 23:12:05 +02:00
elf32_getehdr.c
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2012-06-05 23:12:05 +02:00
elf32_getphdr.c
libelf: Fix handling of (extended) phnum.
2014-11-17 00:33:36 +01:00
elf32_getshdr.c
robustify: libelf.
2014-01-23 11:31:53 +01:00
elf32_newehdr.c
Update name, license and contributor policy.
2012-06-05 23:12:05 +02:00
elf32_newphdr.c
libelf: Make sure shdrs are valid before storing extended phnum in newphdr.
2015-05-18 15:48:04 +02:00
elf32_offscn.c
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2012-06-05 23:12:05 +02:00
elf32_updatefile.c
robustify: libelf.
2014-01-23 11:31:53 +01:00
elf32_updatenull.c
libelf: If e_phnum is zero then set e_phoff also to zero.
2015-05-18 15:48:04 +02:00
elf32_xlatetof.c
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2012-06-05 23:12:05 +02:00
elf32_xlatetom.c
elf*_xlatetom: do not check ELF_T_NHDR has integer number of records
2012-07-17 16:29:18 +02:00
elf64_checksum.c
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2012-06-05 23:12:05 +02:00
elf64_fsize.c
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2012-06-05 23:12:05 +02:00
elf64_getehdr.c
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2012-06-05 23:12:05 +02:00
elf64_getphdr.c
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2012-06-05 23:12:05 +02:00
elf64_getshdr.c
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2012-06-05 23:12:05 +02:00
elf64_newehdr.c
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2012-06-05 23:12:05 +02:00
elf64_newphdr.c
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2012-06-05 23:12:05 +02:00
elf64_offscn.c
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2012-06-05 23:12:05 +02:00
elf64_updatefile.c
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2012-06-05 23:12:05 +02:00
elf64_updatenull.c
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2012-06-05 23:12:05 +02:00
elf64_xlatetof.c
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2012-06-05 23:12:05 +02:00
elf64_xlatetom.c
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2012-06-05 23:12:05 +02:00
elf_begin.c
libelf: ar_size cannot be negative. Fix max ar size.
2015-01-12 22:02:46 +01:00
elf_clone.c
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2012-06-05 23:12:05 +02:00
elf_cntl.c
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2012-06-05 23:12:05 +02:00
elf_end.c
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2012-06-05 23:12:05 +02:00
elf_error.c
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2012-06-05 23:12:05 +02:00
elf_fill.c
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2012-06-05 23:12:05 +02:00
elf_flagdata.c
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2012-06-05 23:12:05 +02:00
elf_flagehdr.c
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2012-06-05 23:12:05 +02:00
elf_flagelf.c
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2012-06-05 23:12:05 +02:00
elf_flagphdr.c
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2012-06-05 23:12:05 +02:00
elf_flagscn.c
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2012-06-05 23:12:05 +02:00
elf_flagshdr.c
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2012-06-05 23:12:05 +02:00
elf_getarhdr.c
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2012-06-05 23:12:05 +02:00
elf_getaroff.c
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2012-06-05 23:12:05 +02:00
elf_getarsym.c
libelf: Check index_size doesn't overflow in elf_getarsym.
2014-12-17 16:49:02 +01:00
elf_getbase.c
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2012-06-05 23:12:05 +02:00
elf_getdata_rawchunk.c
libelf: Change signed overflow check to unsigned in elf_getdata_rawchunk.
2014-11-26 20:24:13 +01:00
elf_getdata.c
libelf: More checking of valid sh_addralign values.
2015-05-18 15:48:04 +02:00
elf_getident.c
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2012-06-05 23:12:05 +02:00
elf_getphdrnum.c
libelf: gelf_getphdr should check phdr index is valid.
2015-01-15 14:04:28 +01:00
elf_getscn.c
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2012-06-05 23:12:05 +02:00
elf_getshdrnum.c
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2012-06-05 23:12:05 +02:00
elf_getshdrstrndx.c
libelf: elf_getshdrstrndx cannot use SHN_XINDEX without section headers.
2014-11-17 00:42:53 +01:00
elf_gnu_hash.c
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2012-06-05 23:12:05 +02:00
elf_hash.c
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2012-06-05 23:12:05 +02:00
elf_kind.c
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2012-06-05 23:12:05 +02:00
elf_memory.c
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2012-06-05 23:12:05 +02:00
elf_ndxscn.c
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2012-06-05 23:12:05 +02:00
elf_newdata.c
libelf: Fix elf_newdata when raw ELF file/image data is available.
2015-02-06 22:24:08 +01:00
elf_newscn.c
robustify: libelf.
2014-01-23 11:31:53 +01:00
elf_next.c
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2012-06-05 23:12:05 +02:00
elf_nextscn.c
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2012-06-05 23:12:05 +02:00
elf_rand.c
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2012-06-05 23:12:05 +02:00
elf_rawdata.c
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2012-06-05 23:12:05 +02:00
elf_rawfile.c
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2012-06-05 23:12:05 +02:00
elf_readall.c
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2012-06-05 23:12:05 +02:00
elf_scnshndx.c
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2012-06-05 23:12:05 +02:00
elf_strptr.c
libelf: Make sure string returned by elf_strptr is NUL terminated.
2015-02-06 22:36:43 +01:00
elf_update.c
libelf: Use posix_fallocate instead of ftruncate to extend ELF file.
2015-05-27 17:10:48 +02:00
elf_version.c
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2012-06-05 23:12:05 +02:00
elf-knowledge.h
Check elf_strptr didn't fail getting section name.
2014-11-17 23:19:03 +01:00
elf.h
Update elf.h from glibc.
2015-04-28 14:41:12 +02:00
exttypes.h
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2012-06-05 23:12:05 +02:00
gelf_checksum.c
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2012-06-05 23:12:05 +02:00
gelf_fsize.c
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2012-06-05 23:12:05 +02:00
gelf_getauxv.c
gelf_getauxv: Add missing whitespace.
2013-08-28 11:44:41 +02:00
gelf_getclass.c
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2012-06-05 23:12:05 +02:00
gelf_getdyn.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getehdr.c
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2012-06-05 23:12:05 +02:00
gelf_getlib.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getmove.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getnote.c
gelf_getnote: Check padding overflow.
2014-11-16 11:30:51 +01:00
gelf_getphdr.c
libelf: gelf_getphdr should check phdr index is valid.
2015-01-15 14:04:28 +01:00
gelf_getrel.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getrela.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getshdr.c
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2012-06-05 23:12:05 +02:00
gelf_getsym.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getsyminfo.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getsymshndx.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_getverdaux.c
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2012-06-05 23:12:05 +02:00
gelf_getverdef.c
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2012-06-05 23:12:05 +02:00
gelf_getvernaux.c
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2012-06-05 23:12:05 +02:00
gelf_getverneed.c
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2012-06-05 23:12:05 +02:00
gelf_getversym.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_newehdr.c
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2012-06-05 23:12:05 +02:00
gelf_newphdr.c
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2012-06-05 23:12:05 +02:00
gelf_offscn.c
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2012-06-05 23:12:05 +02:00
gelf_update_auxv.c
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2012-06-05 23:12:05 +02:00
gelf_update_dyn.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_ehdr.c
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2012-06-05 23:12:05 +02:00
gelf_update_lib.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_move.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_phdr.c
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2012-06-05 23:12:05 +02:00
gelf_update_rel.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_rela.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_shdr.c
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2012-06-05 23:12:05 +02:00
gelf_update_sym.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_syminfo.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_symshndx.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_update_verdaux.c
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2012-06-05 23:12:05 +02:00
gelf_update_verdef.c
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2012-06-05 23:12:05 +02:00
gelf_update_vernaux.c
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2012-06-05 23:12:05 +02:00
gelf_update_verneed.c
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2012-06-05 23:12:05 +02:00
gelf_update_versym.c
robustify: libelf gelf define INVALID_NDX macro.
2014-01-23 11:31:53 +01:00
gelf_xlate.c
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2012-06-05 23:12:05 +02:00
gelf_xlate.h
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2012-06-05 23:12:05 +02:00
gelf_xlatetof.c
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2012-06-05 23:12:05 +02:00
gelf_xlatetom.c
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2012-06-05 23:12:05 +02:00
gelf.h
gelf.h: Fix typo in comment.
2013-08-28 18:58:10 +02:00
gnuhash_xlate.h
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2012-06-05 23:12:05 +02:00
libelf_crc32.c
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2012-06-05 23:12:05 +02:00
libelf_next_prime.c
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2012-06-05 23:12:05 +02:00
libelf.h
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2012-06-05 23:12:05 +02:00
libelf.map
Add elf_getphdrnum, support >65536 phdrs.
2010-01-07 19:43:42 -08:00
libelfP.h
libelf: Make __libelf_set_data_list_rdlock an internal_function.
2015-02-19 22:21:46 +01:00
Makefile.am
avoid scary command output
2014-12-18 23:47:22 +01:00
nlist.c
Always call gelf_fsize with EV_CURRENT as argument.
2015-05-13 16:31:52 +02:00
nlist.h
Update name, license and contributor policy.
2012-06-05 23:12:05 +02:00
note_xlate.h
libelf: Copy over any leftover data from src to dest in elf_cvt_note.
2014-11-26 20:21:44 +01:00
version_xlate.h
libelf: Make sure version xlate dest buffer is fully defined.
2015-05-06 13:43:22 +02:00