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::buildLinuxLoader empty FOLDEXED for shlib

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This commit is contained in:
John Reiser
2009-10-25 13:52:41 -07:00
parent eeab1aef64
commit 6ab04d7bbc
1 changed files with 10 additions and 8 deletions
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src/p_lx_elf.cpp
+10 -8
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@@ -643,9 +643,9 @@ PackLinuxElf32::buildLinuxLoader(
{ {
initLoader(proto, szproto); initLoader(proto, szproto);
if (0 < szfold) {
struct b_info h; memset(&h, 0, sizeof(h)); struct b_info h; memset(&h, 0, sizeof(h));
unsigned fold_hdrlen = 0; unsigned fold_hdrlen = 0;
if (0 < szfold) {
cprElfHdr1 const *const hf = (cprElfHdr1 const *)fold; cprElfHdr1 const *const hf = (cprElfHdr1 const *)fold;
fold_hdrlen = umax(0x80, sizeof(hf->ehdr) + fold_hdrlen = umax(0x80, sizeof(hf->ehdr) +
get_te16(&hf->ehdr.e_phentsize) * get_te16(&hf->ehdr.e_phnum) + get_te16(&hf->ehdr.e_phentsize) * get_te16(&hf->ehdr.e_phnum) +
@@ -654,12 +654,10 @@ PackLinuxElf32::buildLinuxLoader(
h.b_method = (unsigned char) ph.method; h.b_method = (unsigned char) ph.method;
h.b_ftid = (unsigned char) ph.filter; h.b_ftid = (unsigned char) ph.filter;
h.b_cto8 = (unsigned char) ph.filter_cto; h.b_cto8 = (unsigned char) ph.filter_cto;
}
unsigned char const *const uncLoader = fold_hdrlen + fold; unsigned char const *const uncLoader = fold_hdrlen + fold;
h.sz_cpr = MemBuffer::getSizeForCompression(h.sz_unc + (0==h.sz_unc)); h.sz_cpr = MemBuffer::getSizeForCompression(h.sz_unc + (0==h.sz_unc));
unsigned char *const cprLoader = new unsigned char[sizeof(h) + h.sz_cpr]; unsigned char *const cprLoader = new unsigned char[sizeof(h) + h.sz_cpr];
if (0 < szfold) {
int r = upx_compress(uncLoader, h.sz_unc, sizeof(h) + cprLoader, &h.sz_cpr, int r = upx_compress(uncLoader, h.sz_unc, sizeof(h) + cprLoader, &h.sz_cpr,
NULL, ph.method, 10, NULL, NULL ); NULL, ph.method, 10, NULL, NULL );
if (r != UPX_E_OK || h.sz_cpr >= h.sz_unc) if (r != UPX_E_OK || h.sz_cpr >= h.sz_unc)
@@ -679,7 +677,6 @@ PackLinuxElf32::buildLinuxLoader(
delete[] tmp; delete[] tmp;
} }
#endif //} #endif //}
}
unsigned const sz_cpr = h.sz_cpr; unsigned const sz_cpr = h.sz_cpr;
set_te32(&h.sz_cpr, h.sz_cpr); set_te32(&h.sz_cpr, h.sz_cpr);
set_te32(&h.sz_unc, h.sz_unc); set_te32(&h.sz_unc, h.sz_unc);
@@ -688,6 +685,10 @@ PackLinuxElf32::buildLinuxLoader(
// This adds the definition to the "library", to be used later. // This adds the definition to the "library", to be used later.
linker->addSection("FOLDEXEC", cprLoader, sizeof(h) + sz_cpr, 0); linker->addSection("FOLDEXEC", cprLoader, sizeof(h) + sz_cpr, 0);
delete [] cprLoader; delete [] cprLoader;
}
else {
linker->addSection("FOLDEXEC", "", 0, 0);
}
addStubEntrySections(ft); addStubEntrySections(ft);
@@ -707,9 +708,9 @@ PackLinuxElf64::buildLinuxLoader(
{ {
initLoader(proto, szproto); initLoader(proto, szproto);
if (0 < szfold) {
struct b_info h; memset(&h, 0, sizeof(h)); struct b_info h; memset(&h, 0, sizeof(h));
unsigned fold_hdrlen = 0; unsigned fold_hdrlen = 0;
if (0 < szfold) {
cprElfHdr1 const *const hf = (cprElfHdr1 const *)fold; cprElfHdr1 const *const hf = (cprElfHdr1 const *)fold;
fold_hdrlen = umax(0x80, sizeof(hf->ehdr) + fold_hdrlen = umax(0x80, sizeof(hf->ehdr) +
get_te16(&hf->ehdr.e_phentsize) * get_te16(&hf->ehdr.e_phnum) + get_te16(&hf->ehdr.e_phentsize) * get_te16(&hf->ehdr.e_phnum) +
@@ -718,17 +719,14 @@ PackLinuxElf64::buildLinuxLoader(
h.b_method = (unsigned char) ph.method; h.b_method = (unsigned char) ph.method;
h.b_ftid = (unsigned char) ph.filter; h.b_ftid = (unsigned char) ph.filter;
h.b_cto8 = (unsigned char) ph.filter_cto; h.b_cto8 = (unsigned char) ph.filter_cto;
}
unsigned char const *const uncLoader = fold_hdrlen + fold; unsigned char const *const uncLoader = fold_hdrlen + fold;
h.sz_cpr = MemBuffer::getSizeForCompression(h.sz_unc + (0==h.sz_unc)); h.sz_cpr = MemBuffer::getSizeForCompression(h.sz_unc + (0==h.sz_unc));
unsigned char *const cprLoader = new unsigned char[sizeof(h) + h.sz_cpr]; unsigned char *const cprLoader = new unsigned char[sizeof(h) + h.sz_cpr];
if (0 < szfold) {
int r = upx_compress(uncLoader, h.sz_unc, sizeof(h) + cprLoader, &h.sz_cpr, int r = upx_compress(uncLoader, h.sz_unc, sizeof(h) + cprLoader, &h.sz_cpr,
NULL, ph.method, 10, NULL, NULL ); NULL, ph.method, 10, NULL, NULL );
if (r != UPX_E_OK || h.sz_cpr >= h.sz_unc) if (r != UPX_E_OK || h.sz_cpr >= h.sz_unc)
throwInternalError("loader compression failed"); throwInternalError("loader compression failed");
}
unsigned const sz_cpr = h.sz_cpr; unsigned const sz_cpr = h.sz_cpr;
set_te32(&h.sz_cpr, h.sz_cpr); set_te32(&h.sz_cpr, h.sz_cpr);
set_te32(&h.sz_unc, h.sz_unc); set_te32(&h.sz_unc, h.sz_unc);
@@ -737,6 +735,10 @@ PackLinuxElf64::buildLinuxLoader(
// This adds the definition to the "library", to be used later. // This adds the definition to the "library", to be used later.
linker->addSection("FOLDEXEC", cprLoader, sizeof(h) + sz_cpr, 0); linker->addSection("FOLDEXEC", cprLoader, sizeof(h) + sz_cpr, 0);
delete [] cprLoader; delete [] cprLoader;
}
else {
linker->addSection("FOLDEXEC", "", 0, 0);
}
addStubEntrySections(ft); addStubEntrySections(ft);