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Allow __uClibc_main and __uClibc_start_main like __libc_start_main.

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committer: jreiser <jreiser> 1127269046 +0000
This commit is contained in:
John Reiser 2005-09-21 02:17:26 +00:00
parent 55ef60a6d4
commit 0c328372b5
1 changed files with 15 additions and 5 deletions
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20
src/p_lx_elf.cpp
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@ -752,6 +752,7 @@ bool PackLinuxI386elf::canPack()
// then the file is a position-independent executable main program
// (that depends on libc.so.6) and is eligible to be compressed.
// Otherwise (no __libc_start_main as global undefined): skip it.
// Also allow __uClibc_main and __uClibc_start_main .
if (Elf32_Ehdr::ET_DYN==ehdr->e_type) {
// The DT_STRTAB has no designated length. Read the whole file.
@ -771,12 +772,21 @@ bool PackLinuxI386elf::canPack()
hashtab= (unsigned int const *)elf_find_dynamic(Elf32_Dyn::DT_HASH);
dynstr= (char const *)elf_find_dynamic(Elf32_Dyn::DT_STRTAB);
dynsym= (Elf32_Sym const *)elf_find_dynamic(Elf32_Dyn::DT_SYMTAB);
// elf_lookup() returns 0 if any required table is missing.
Elf32_Sym const *const lsm = elf_lookup("__libc_start_main");
char const *const run_start[]= {
"__libc_start_main", "__uClibc_main", "__uClibc_start_main",
};
for (j=0; j<3; ++j) {
// elf_lookup() returns 0 if any required table is missing.
Elf32_Sym const *const lsm = elf_lookup(run_start[j]);
if (lsm && lsm->st_shndx==Elf32_Sym::SHN_UNDEF
&& lsm->st_info==lsm->Elf32_Sym::St_info(Elf32_Sym::STB_GLOBAL, Elf32_Sym::STT_FUNC)
&& lsm->st_other==Elf32_Sym::STV_DEFAULT ) {
break;
}
}
phdri = 0; // done "borrowing" this member
if (0==lsm || lsm->st_shndx!=Elf32_Sym::SHN_UNDEF
|| lsm->st_info!=lsm->Elf32_Sym::St_info(Elf32_Sym::STB_GLOBAL, Elf32_Sym::STT_FUNC)
|| lsm->st_other!=Elf32_Sym::STV_DEFAULT ) {
if (3<=j) {
return false;
}
}