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author | Alan Modra <amodra@gmail.com> | 2023-05-08 09:16:24 +0930 |
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committer | Alan Modra <amodra@gmail.com> | 2023-05-08 13:59:35 +0930 |
commit | f35cc0decdd7595b34daa30803038342864b7888 (patch) | |
tree | 8bc2a45986ea783d9c645726b1547466eef385a8 /ld | |
parent | defb881754df013e337eb981bc54b5e83fd01fa4 (diff) | |
download | gdb-f35cc0decdd7595b34daa30803038342864b7888.zip gdb-f35cc0decdd7595b34daa30803038342864b7888.tar.gz gdb-f35cc0decdd7595b34daa30803038342864b7888.tar.bz2 |
pe.em and pep.em make_import_fixup
This is a little cleanup that I made when looking at pr30343 that
makes it more obvious that make_import_fixup in both files are
identical (and in fact the new pep.em read_addend could be used in
both files).
* emultempl/pep.em (read_addend): Extract from..
(make_import_fixup): ..here.
* emultempl/pe.em (read_addend): Similarly.
(make_import_fixup): Similarly. Add debug code from pep.em.
Diffstat (limited to 'ld')
-rw-r--r-- | ld/emultempl/pe.em | 33 | ||||
-rw-r--r-- | ld/emultempl/pep.em | 83 |
2 files changed, 76 insertions, 40 deletions
diff --git a/ld/emultempl/pe.em b/ld/emultempl/pe.em index 4fe0cf2..38cb611 100644 --- a/ld/emultempl/pe.em +++ b/ld/emultempl/pe.em @@ -1236,23 +1236,42 @@ pe_fixup_stdcalls (void) } } +static bfd_vma +read_addend (arelent *rel, asection *s) +{ + char buf[4]; + bfd_vma addend = 0; + + if (!bfd_get_section_contents (s->owner, s, buf, rel->address, sizeof (buf))) + einfo (_("%P: %C: cannot get section contents - auto-import exception\n"), + s->owner, s, rel->address); + else + addend = bfd_get_32 (s->owner, buf); + return addend; +} + static void make_import_fixup (arelent *rel, asection *s, char *name, const char *symname) { struct bfd_symbol *sym = *rel->sym_ptr_ptr; - char addend[4]; - bfd_vma _addend; + bfd_vma addend; if (pe_dll_extra_pe_debug) printf ("arelent: %s@%#lx: add=%li\n", sym->name, (unsigned long) rel->address, (long) rel->addend); - if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend))) - einfo (_("%P: %C: cannot get section contents - auto-import exception\n"), - s->owner, s, rel->address); + addend = read_addend (rel, s); + + if (pe_dll_extra_pe_debug) + { + printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", + (long) addend, (long) rel->addend, (long) rel->address); + if (rel->howto->pc_relative) + printf (" pcrel"); + printf (" %d bit rel.\n", (int) rel->howto->bitsize); + } - _addend = bfd_get_32 (s->owner, addend); - pe_create_import_fixup (rel, s, _addend, name, symname); + pe_create_import_fixup (rel, s, addend, name, symname); } static void diff --git a/ld/emultempl/pep.em b/ld/emultempl/pep.em index 5770df8..32883b2 100644 --- a/ld/emultempl/pep.em +++ b/ld/emultempl/pep.em @@ -1197,63 +1197,80 @@ pep_fixup_stdcalls (void) } } -static void -make_import_fixup (arelent *rel, asection *s, char *name, const char *symname) +static bfd_vma +read_addend (arelent *rel, asection *s) { - struct bfd_symbol *sym = *rel->sym_ptr_ptr; - char addend[8]; - bfd_vma _addend = 0; - int suc = 0; + char buf[8]; + bfd_vma addend = 0; + bool ok = false; - if (pep_dll_extra_pe_debug) - printf ("arelent: %s@%#lx: add=%li\n", sym->name, - (unsigned long) rel->address, (long) rel->addend); - - memset (addend, 0, sizeof (addend)); - switch ((rel->howto->bitsize)) + switch (rel->howto->bitsize) { case 8: - suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1); - if (suc && rel->howto->pc_relative) - _addend = bfd_get_signed_8 (s->owner, addend); - else if (suc) - _addend = bfd_get_8 (s->owner, addend); + ok = bfd_get_section_contents (s->owner, s, buf, rel->address, 1); + if (ok) + { + if (rel->howto->pc_relative) + addend = bfd_get_signed_8 (s->owner, buf); + else + addend = bfd_get_8 (s->owner, buf); + } break; case 16: - suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2); - if (suc && rel->howto->pc_relative) - _addend = bfd_get_signed_16 (s->owner, addend); - else if (suc) - _addend = bfd_get_16 (s->owner, addend); + ok = bfd_get_section_contents (s->owner, s, buf, rel->address, 2); + if (ok) + { + if (rel->howto->pc_relative) + addend = bfd_get_signed_16 (s->owner, buf); + else + addend = bfd_get_16 (s->owner, buf); + } break; case 26: case 32: - suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4); - if (suc && rel->howto->pc_relative) - _addend = bfd_get_signed_32 (s->owner, addend); - else if (suc) - _addend = bfd_get_32 (s->owner, addend); + ok = bfd_get_section_contents (s->owner, s, buf, rel->address, 4); + if (ok) + { + if (rel->howto->pc_relative) + addend = bfd_get_signed_32 (s->owner, buf); + else + addend = bfd_get_32 (s->owner, buf); + } break; case 64: - suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8); - if (suc) - _addend = bfd_get_64 (s->owner, addend); + ok = bfd_get_section_contents (s->owner, s, buf, rel->address, 8); + if (ok) + addend = bfd_get_64 (s->owner, buf); break; } - if (! suc) + if (!ok) einfo (_("%P: %C: cannot get section contents - auto-import exception\n"), s->owner, s, rel->address); + return addend; +} + +static void +make_import_fixup (arelent *rel, asection *s, char *name, const char *symname) +{ + struct bfd_symbol *sym = *rel->sym_ptr_ptr; + bfd_vma addend; + + if (pep_dll_extra_pe_debug) + printf ("arelent: %s@%#lx: add=%li\n", sym->name, + (unsigned long) rel->address, (long) rel->addend); + + addend = read_addend (rel, s); if (pep_dll_extra_pe_debug) { printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", - (long) _addend, (long) rel->addend, (long) rel->address); + (long) addend, (long) rel->addend, (long) rel->address); if (rel->howto->pc_relative) printf (" pcrel"); printf (" %d bit rel.\n", (int) rel->howto->bitsize); } - pep_create_import_fixup (rel, s, _addend, name, symname); + pep_create_import_fixup (rel, s, addend, name, symname); } static void |