diff options
Diffstat (limited to 'scripts/localplt.awk')
| -rw-r--r-- | scripts/localplt.awk | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/scripts/localplt.awk b/scripts/localplt.awk index 84c94d1..f75b3b4 100644 --- a/scripts/localplt.awk +++ b/scripts/localplt.awk @@ -13,6 +13,8 @@ FILENAME != lastfile { } lastfile = FILENAME; jmprel_offset = 0; + rela_offset = 0; + rel_offset = 0; delete section_offset_by_address; } @@ -43,6 +45,30 @@ in_relocs && relocs_offset == jmprel_offset && NF >= 5 { } } +in_relocs && relocs_offset == rela_offset && NF >= 5 { + # Relocations against GNU_IFUNC symbols are not shown as an hexadecimal + # value, but rather as the resolver symbol followed by (). + if ($4 ~ /\(\)/) { + print whatfile, gensub(/@.*/, "", "g", $5), "RELA", $3 + } else { + symval = strtonum("0x" $4); + if (symval != 0) + print whatfile, gensub(/@.*/, "", "g", $5), "RELA", $3 + } +} + +in_relocs && relocs_offset == rel_offset && NF >= 5 { + # Relocations against GNU_IFUNC symbols are not shown as an hexadecimal + # value, but rather as the resolver symbol followed by (). + if ($4 ~ /\(\)/) { + print whatfile, gensub(/@.*/, "", "g", $5), "REL", $3 + } else { + symval = strtonum("0x" $4); + if (symval != 0) + print whatfile, gensub(/@.*/, "", "g", $5), "REL", $3 + } +} + in_relocs { next } $1 == "Relocation" && $2 == "section" && $5 == "offset" { @@ -62,4 +88,25 @@ $2 == "(JMPREL)" { next } +$2 == "(RELA)" { + rela_addr = strtonum($3); + if (rela_addr in section_offset_by_address) { + rela_offset = section_offset_by_address[rela_addr]; + } else { + print FILENAME ": *** DT_RELA does not match any section's address"; + result = 2; + } + next +} + +$2 == "(REL)" { + rel_addr = strtonum($3); + if (rel_addr in section_offset_by_address) { + rel_offset = section_offset_by_address[rel_addr]; + } else { + print FILENAME ": *** DT_REL does not match any section's address"; + result = 2; + } + next +} END { exit(result) } |