diff options
Diffstat (limited to 'elfcopy')
| -rw-r--r-- | elfcopy/binary.c | 11 | ||||
| -rw-r--r-- | elfcopy/elfcopy.1 | 9 | ||||
| -rw-r--r-- | elfcopy/main.c | 6 | ||||
| -rw-r--r-- | elfcopy/sections.c | 16 | ||||
| -rw-r--r-- | elfcopy/segments.c | 4 |
5 files changed, 32 insertions, 14 deletions
diff --git a/elfcopy/binary.c b/elfcopy/binary.c index 23e46e7..7c834a9 100644 --- a/elfcopy/binary.c +++ b/elfcopy/binary.c @@ -35,7 +35,7 @@ #include "elfcopy.h" -ELFTC_VCSID("$Id: binary.c 3174 2015-03-27 17:13:41Z emaste $"); +ELFTC_VCSID("$Id: binary.c 3270 2015-12-11 18:48:56Z emaste $"); /* * Convert ELF object to `binary'. Sections with SHF_ALLOC flag set @@ -140,6 +140,7 @@ create_elf_from_binary(struct elfcopy *ecp, int ifd, const char *ifn) GElf_Shdr sh; void *content; uint64_t off, data_start, data_end, data_size; + char *sym_basename, *p; /* Reset internal section list. */ if (!TAILQ_EMPTY(&ecp->v_sec)) @@ -210,8 +211,13 @@ create_elf_from_binary(struct elfcopy *ecp, int ifd, const char *ifn) /* Count in .symtab and .strtab section headers. */ shtab->sz += gelf_fsize(ecp->eout, ELF_T_SHDR, 2, EV_CURRENT); + if ((sym_basename = strdup(ifn)) == NULL) + err(1, "strdup"); + p = sym_basename; + while ((p = strchr(p, '.')) != NULL) + *p++ = '_'; #define _GEN_SYMNAME(S) do { \ - snprintf(name, sizeof(name), "%s%s%s", "_binary_", ifn, S); \ + snprintf(name, sizeof(name), "%s%s%s", "_binary_", sym_basename, S); \ } while (0) /* @@ -233,6 +239,7 @@ create_elf_from_binary(struct elfcopy *ecp, int ifd, const char *ifn) finalize_external_symtab(ecp); create_symtab_data(ecp); #undef _GEN_SYMNAME + free(sym_basename); /* * Write the underlying ehdr. Note that it should be called diff --git a/elfcopy/elfcopy.1 b/elfcopy/elfcopy.1 index 4889570..83cda5d 100644 --- a/elfcopy/elfcopy.1 +++ b/elfcopy/elfcopy.1 @@ -21,9 +21,9 @@ .\" out of the use of this software, even if advised of the possibility of .\" such damage. .\" -.\" $Id: elfcopy.1 3195 2015-05-12 17:22:19Z emaste $ +.\" $Id: elfcopy.1 3266 2015-12-07 15:38:26Z emaste $ .\" -.Dd March 27, 2015 +.Dd December 7, 2015 .Os .Dt ELFCOPY 1 .Sh NAME @@ -47,6 +47,7 @@ .Op Fl p | Fl -preserve-dates .Op Fl w | Fl -wildcard .Op Fl x | Fl -discard-all +.Op Fl -add-gnu-debuglink Ns = Ns Ar filename .Op Fl -add-section Ar sectionname Ns = Ns Ar filename .Oo .Fl -adjust-section-vma Ar section Ns {+|-|=} Ns Ar val | @@ -165,6 +166,10 @@ Mark the end of a character class. .El .It Fl x | Fl -discard-all Do not copy non-global symbols to the output. +.It Fl -add-gnu-debuglink Ns = Ns Ar filename +Create a .gnu_debuglink section in the output file that references the +debug data in +.Ar filename . .It Fl -add-section Ar sectionname Ns = Ns Ar filename Add a new section to the output file with name .Ar sectionname . diff --git a/elfcopy/main.c b/elfcopy/main.c index cbd48d3..e2685b4 100644 --- a/elfcopy/main.c +++ b/elfcopy/main.c @@ -39,7 +39,7 @@ #include "elfcopy.h" -ELFTC_VCSID("$Id: main.c 3216 2015-05-23 21:16:36Z kaiwang27 $"); +ELFTC_VCSID("$Id: main.c 3268 2015-12-07 20:30:55Z emaste $"); enum options { @@ -1375,11 +1375,13 @@ Usage: %s [options] infile [outfile]\n\ -w | --wildcard Use shell-style patterns to name symbols.\n\ -x | --discard-all Do not copy non-globals to the output.\n\ -I FORMAT | --input-target=FORMAT\n\ - (Accepted but ignored).\n\ + Specify object format for the input file.\n\ -K SYM | --keep-symbol=SYM Copy symbol SYM to the output.\n\ -L SYM | --localize-symbol=SYM\n\ Make symbol SYM local to the output file.\n\ -N SYM | --strip-symbol=SYM Do not copy symbol SYM to the output.\n\ + -O FORMAT | --output-target=FORMAT\n\ + Specify object format for the output file.\n\ -R NAME | --remove-section=NAME\n\ Remove the named section.\n\ -S | --strip-all Remove all symbol and relocation information\n\ diff --git a/elfcopy/sections.c b/elfcopy/sections.c index f1ec6c0..0c18171 100644 --- a/elfcopy/sections.c +++ b/elfcopy/sections.c @@ -34,7 +34,7 @@ #include "elfcopy.h" -ELFTC_VCSID("$Id: sections.c 3225 2015-06-06 02:35:23Z kaiwang27 $"); +ELFTC_VCSID("$Id: sections.c 3272 2015-12-11 20:00:54Z kaiwang27 $"); static void add_gnu_debuglink(struct elfcopy *ecp); static uint32_t calc_crc32(const char *p, size_t len, uint32_t crc); @@ -457,11 +457,17 @@ create_scn(struct elfcopy *ecp) /* * If strip action is STRIP_NONDEBUG(only keep debug), - * change sections flags of loadable sections to SHF_NOBITS, - * and the content of those sections will be ignored. + * change sections type of loadable sections and section + * groups to SHT_NOBITS, and the content of those sections + * will be discarded. However, SHT_NOTE sections should + * be kept. */ - if (ecp->strip == STRIP_NONDEBUG && (ish.sh_flags & SHF_ALLOC)) - s->type = SHT_NOBITS; + if (ecp->strip == STRIP_NONDEBUG) { + if (((ish.sh_flags & SHF_ALLOC) || + (ish.sh_flags & SHF_GROUP)) && + ish.sh_type != SHT_NOTE) + s->type = SHT_NOBITS; + } check_section_rename(ecp, s); diff --git a/elfcopy/segments.c b/elfcopy/segments.c index 1e271a6..837cea5 100644 --- a/elfcopy/segments.c +++ b/elfcopy/segments.c @@ -34,7 +34,7 @@ #include "elfcopy.h" -ELFTC_VCSID("$Id: segments.c 3196 2015-05-12 17:33:48Z emaste $"); +ELFTC_VCSID("$Id: segments.c 3269 2015-12-11 18:38:43Z kaiwang27 $"); static void insert_to_inseg_list(struct segment *seg, struct section *sec); @@ -77,8 +77,6 @@ add_to_inseg_list(struct elfcopy *ecp, struct section *s) if (s->off + s->sz > seg->off + seg->fsz && s->type != SHT_NOBITS) continue; - if (s->off + s->sz > seg->off + seg->msz) - continue; if (s->vma + s->sz > seg->addr + seg->msz) continue; |
