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mipsel conditional stub/src/i386-linux.elf-main.c

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This commit is contained in:
John Reiser 2007-05-08 05:48:15 -07:00
parent 1d7e5a8130
commit f252f824a4
1 changed files with 25 additions and 1 deletions
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26
src/stub/src/i386-linux.elf-main.c
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@ -512,6 +512,16 @@ ERR_LAB
// This function is optimized for size. // This function is optimized for size.
**************************************************************************/ **************************************************************************/
#if defined(__mips__) /*{*/
void *upx_main( // returns entry address
struct b_info const *const bi, // 1st block header
size_t const sz_compressed, // total length
Elf32_Ehdr *const ehdr, // temp char[sz_ehdr] for decompressing
Elf32_auxv_t *const av,
f_expand *const f_decompress,
f_unfilter *const f_unf
)
#else /*}{ !__mips__ */
void *upx_main( void *upx_main(
Elf32_auxv_t *const av, Elf32_auxv_t *const av,
unsigned const sz_compressed, unsigned const sz_compressed,
@ -531,12 +541,26 @@ void *upx_main(
Extent xi, // {sz_cpr, &b_info} for ELF headers Extent xi, // {sz_cpr, &b_info} for ELF headers
unsigned const volatile dynbase // value+result: compiler must not change unsigned const volatile dynbase // value+result: compiler must not change
) )
#endif /*}*/
{ {
#if !defined(__mips__) /*{*/
Elf32_Ehdr *const ehdr = (Elf32_Ehdr *)(void *)xo.buf; // temp char[MAX_ELF_HDR+OVERHEAD] Elf32_Ehdr *const ehdr = (Elf32_Ehdr *)(void *)xo.buf; // temp char[MAX_ELF_HDR+OVERHEAD]
#endif /*}*/
Elf32_Phdr const *phdr = (Elf32_Phdr const *)(1+ ehdr); Elf32_Phdr const *phdr = (Elf32_Phdr const *)(1+ ehdr);
Elf32_Addr reloc; Elf32_Addr reloc;
Elf32_Addr entry; Elf32_Addr entry;
#if defined(__mips__) /*{*/
unsigned dynbase = 0;
Extent xo, xi, xj;
xo.buf = (char *)ehdr;
xo.size = bi->sz_unc;
xi.buf = CONST_CAST(char *, bi); xi.size = sz_compressed;
xj.buf = CONST_CAST(char *, bi); xj.size = sz_compressed;
// ehdr = Uncompress Ehdr and Phdrs
unpackExtent(&xj, &xo, f_decompress, 0); // never filtered?
#else /*}{ !__mips__ */
// sizeof(Ehdr+Phdrs), compressed; including b_info header // sizeof(Ehdr+Phdrs), compressed; including b_info header
size_t const sz_pckhdrs = xi.size; size_t const sz_pckhdrs = xi.size;
@ -553,6 +577,7 @@ void *upx_main(
// Prepare to decompress the Elf headers again, into the first PT_LOAD. // Prepare to decompress the Elf headers again, into the first PT_LOAD.
xi.buf -= sz_pckhdrs; xi.buf -= sz_pckhdrs;
xi.size = sz_compressed; xi.size = sz_compressed;
#endif /*}*/
// Some kernels omit AT_PHNUM,AT_PHENT,AT_PHDR because this stub has no PT_INTERP. // Some kernels omit AT_PHNUM,AT_PHENT,AT_PHDR because this stub has no PT_INTERP.
// That is "too much" optimization. Linux 2.6.x seems to give all AT_*. // That is "too much" optimization. Linux 2.6.x seems to give all AT_*.
@ -585,7 +610,6 @@ ERR_LAB
return (void *)entry; return (void *)entry;
} }
/* /*
vi:ts=4:et:nowrap vi:ts=4:et:nowrap
*/ */