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Merge "Fix bionic linker to support segments with zero p_filesz"

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This commit is contained in:
Brian Carlstrom
2013-05-21 23:59:52 +00:00
committed by Gerrit Code Review
parent 2e317075b0 82dcc7910d
commit f5f29de6ae
1 changed files with 12 additions and 9 deletions
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21
linker/linker_phdr.cpp
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@@ -320,16 +320,19 @@ bool ElfReader::LoadSegments() {
Elf32_Addr file_end = file_start + phdr->p_filesz;
Elf32_Addr file_page_start = PAGE_START(file_start);
Elf32_Addr file_length = file_end - file_page_start;
void* seg_addr = mmap((void*)seg_page_start,
file_end - file_page_start,
PFLAGS_TO_PROT(phdr->p_flags),
MAP_FIXED|MAP_PRIVATE,
fd_,
file_page_start);
if (seg_addr == MAP_FAILED) {
DL_ERR("couldn't map \"%s\" segment %d: %s", name_, i, strerror(errno));
return false;
if (file_length != 0) {
void* seg_addr = mmap((void*)seg_page_start,
file_length,
PFLAGS_TO_PROT(phdr->p_flags),
MAP_FIXED|MAP_PRIVATE,
fd_,
file_page_start);
if (seg_addr == MAP_FAILED) {
DL_ERR("couldn't map \"%s\" segment %d: %s", name_, i, strerror(errno));
return false;
}
}
// if the segment is writable, and does not end on a page boundary,