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git://projects.qi-hardware.com/openwrt-xburst.git
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31 lines
1.5 KiB
Diff
31 lines
1.5 KiB
Diff
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diff -urN uClibc-0.9.29.old/ldso/ldso/ldso.c uClibc-0.9.29/ldso/ldso/ldso.c
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--- uClibc-0.9.29.old/ldso/ldso/ldso.c 2008-09-25 01:02:42.000000000 +0200
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+++ uClibc-0.9.29/ldso/ldso/ldso.c 2008-09-24 23:55:11.000000000 +0200
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@@ -286,15 +286,20 @@
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_dl_debug_early("calling mprotect on the application program\n");
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/* Now cover the application program. */
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if (app_tpnt->dynamic_info[DT_TEXTREL]) {
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- ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_val;
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- for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt++) {
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- if (ppnt->p_type == PT_LOAD && !(ppnt->p_flags & PF_W))
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- _dl_mprotect((void *) (DL_RELOC_ADDR(app_tpnt->loadaddr, ppnt->p_vaddr) & PAGE_ALIGN),
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- ((ppnt->p_vaddr + app_tpnt->loadaddr) & ADDR_ALIGN) +
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- (unsigned long) ppnt->p_filesz,
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+ ElfW(Phdr) *ppnt_inner = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_val;
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+ for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt_inner++) {
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+ if (ppnt_inner->p_type == PT_LOAD && !(ppnt_inner->p_flags & PF_W))
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+ _dl_mprotect((void *) (DL_RELOC_ADDR(app_tpnt->loadaddr, ppnt_inner->p_vaddr) & PAGE_ALIGN),
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+ ((ppnt_inner->p_vaddr + app_tpnt->loadaddr) & ADDR_ALIGN) +
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+ (unsigned long) ppnt_inner->p_filesz,
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PROT_READ | PROT_WRITE | PROT_EXEC);
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}
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}
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+#else
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+ if (app_tpnt->dynamic_info[DT_TEXTREL]) {
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+ _dl_dprintf(_dl_debug_file, "Can't modify application's text section; use the GCC option -fPIE for position-independent executables.\n");
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+ _dl_exit(1);
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+}
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#endif
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#ifndef ALLOW_ZERO_PLTGOT
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