search for: dt_null

...version_r in.so out.so > * However, llvm-objcopy zeroes out the section content so at runtime glibc ld.so will error > "unsupported version 0 of Verneed record". > Thus we need to drop the DT_VERNEED tag as well. > To achieve this, we can rewrite the DT_VERNEED tag to DT_NULL (0), terminating > the dynamic table, effectively deleting all DT_VER* tags. DT_RELACOUNT is also > deleted. Fortunately its absence does not affect correctness. > This requires binary patching > > ... > 0x000000006ffffffb (FLAGS_1) Flags: NOW > - 0x00...

...Dyn' undeclared (first use in this function) stabs.c:1324: parse error before `dyn' stabs.c:1325: storage size of `dbg_hdr' isn't known stabs.c:1336: `dyn' undeclared (first use in this function) stabs.c:1339: `DT_DEBUG' undeclared (first use in this function) stabs.c:1339: `DT_NULL' undeclared (first use in this function) stabs.c:1325: warning: unused variable `dbg_hdr' make[1]: *** [stabs.o] Error 1 make[1]: Leaving directory `/d1/wine-20010629/debugger' make: *** [debugger/winedbg] Error 2 How to overcome that? Or can I not compile the debugger? Thank you.

It did partially fix the issue but there is still one problem: llvm-objdump -sx gives: Version References: required from libpthread.so.0: 0x09691a75 0x00 05 GLIBC_2.2.5 0x09691972 0x00 09 GLIBC_2.3.2 0x09691973 0x00 07 GLIBC_2.3.3 0x06969192 0x00 12 GLIBC_2.12 required from libdl.so.2: 0x09691a75 0x00 21 GLIBC_2.2.5 required from libuuid.so.1: 0x09da27b0 0x00 19

...gnu.version -R .gnu.version_r in.so out.so * However, llvm-objcopy zeroes out the section content so at runtime glibc ld.so will error "unsupported version 0 of Verneed record". Thus we need to drop the DT_VERNEED tag as well. To achieve this, we can rewrite the DT_VERNEED tag to DT_NULL (0), terminating the dynamic table, effectively deleting all DT_VER* tags. DT_RELACOUNT is also deleted. Fortunately its absence does not affect correctness. This requires binary patching ... 0x000000006ffffffb (FLAGS_1) Flags: NOW - 0x000000006ffffffe (VERNEED)...

...SHN_UNDEF || ndx =3D=3D SHN_ABS) + continue; + sym[j].st_value +=3D VDSO_HIGH_BASE; + } + } else if (strcmp(secstrings+sechdrs[i].sh_name, ".dynamic") =3D=3D 0) { + Elf32_Dyn *dyn =3D (void *)hdr + sechdrs[i].sh_offset; + int tag; + while ((tag =3D (++dyn)->d_tag) !=3D DT_NULL) + switch(tag) { + case DT_PLTGOT: + case DT_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case DT_RELA: + case DT_INIT: + case DT_FINI: + case DT_REL: + case DT_JMPREL: + case DT_VERSYM: + case DT_VERDEF: + case DT_VERNEED: + dyn->d_un.d_val +=3D VDSO...

...SHN_UNDEF || ndx =3D=3D SHN_ABS) + continue; + sym[j].st_value +=3D VDSO_HIGH_BASE; + } + } else if (strcmp(secstrings+sechdrs[i].sh_name, ".dynamic") =3D=3D 0) { + Elf32_Dyn *dyn =3D (void *)hdr + sechdrs[i].sh_offset; + int tag; + while ((tag =3D (++dyn)->d_tag) !=3D DT_NULL) + switch(tag) { + case DT_PLTGOT: + case DT_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case DT_RELA: + case DT_INIT: + case DT_FINI: + case DT_REL: + case DT_JMPREL: + case DT_VERSYM: + case DT_VERDEF: + case DT_VERNEED: + dyn->d_un.d_val +=3D VDSO...

...ehdr->e_phentsize); + + phdr->p_vaddr += new_base - old_base; + switch(phdr->p_type) { + case PT_LOAD: + case PT_NOTE: + break; + case PT_DYNAMIC: { + Elf32_Dyn *dyn = (void *)(phdr->p_vaddr - new_base + (unsigned long)ehdr); + unsigned j; + + for(j = 0; dyn[j].d_tag != DT_NULL; ++j) { + switch(dyn[j].d_tag) { + case DT_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case 0x6ffffff0: /* DT_VERSYM */ + case 0x6ffffffc: /* DT_VERDEF */ + break; + case DT_SONAME: + case DT_STRSZ: + case 0x6ffffffd: /* DT_VERDEFNUM */ + continue; +...

...ehdr->e_phentsize); + + phdr->p_vaddr += new_base - old_base; + switch(phdr->p_type) { + case PT_LOAD: + case PT_NOTE: + break; + case PT_DYNAMIC: { + Elf32_Dyn *dyn = (void *)(phdr->p_vaddr - new_base + (unsigned long)ehdr); + unsigned j; + + for(j = 0; dyn[j].d_tag != DT_NULL; ++j) { + switch(dyn[j].d_tag) { + case DT_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case 0x6ffffff0: /* DT_VERSYM */ + case 0x6ffffffc: /* DT_VERDEF */ + break; + case DT_SONAME: + case DT_STRSZ: + case 0x6ffffffd: /* DT_VERDEFNUM */ + continue; +...

...ehdr->e_phentsize); + + phdr->p_vaddr += new_base - old_base; + switch(phdr->p_type) { + case PT_LOAD: + case PT_NOTE: + break; + case PT_DYNAMIC: { + Elf32_Dyn *dyn = (void *)(phdr->p_vaddr - new_base + (unsigned long)ehdr); + unsigned j; + + for(j = 0; dyn[j].d_tag != DT_NULL; ++j) { + switch(dyn[j].d_tag) { + case DT_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case 0x6ffffff0: /* DT_VERSYM */ + case 0x6ffffffc: /* DT_VERDEF */ + break; + case DT_SONAME: + case DT_STRSZ: + case 0x6ffffffd: /* DT_VERDEFNUM */ + continue; +...

...UNDEF || ndx =3D=3D SHN_ABS) + continue; + sym[j].st_value +=3D VSYSCALL_RELOCATION; + } + } else if (strcmp(secstrings+sechdrs[i].sh_name, ".dynamic") =3D=3D 0) { + Elf32_Dyn *dyn =3D (void *)hdr + sechdrs[i].sh_offset; + int tag; + while ((tag =3D (++dyn)->d_tag) !=3D DT_NULL) { + if (tag =3D=3D DT_PLTGOT || tag =3D=3D DT_HASH || + tag =3D=3D DT_STRTAB || tag =3D=3D DT_SYMTAB || + tag =3D=3D DT_RELA || tag =3D=3D DT_INIT || + tag =3D=3D DT_FINI || tag =3D=3D DT_REL || + tag =3D=3D DT_JMPREL || tag =3D=3D DT_VERSYM || + tag =3D=3D DT...

...UNDEF || ndx =3D=3D SHN_ABS) + continue; + sym[j].st_value +=3D VSYSCALL_RELOCATION; + } + } else if (strcmp(secstrings+sechdrs[i].sh_name, ".dynamic") =3D=3D 0) { + Elf32_Dyn *dyn =3D (void *)hdr + sechdrs[i].sh_offset; + int tag; + while ((tag =3D (++dyn)->d_tag) !=3D DT_NULL) { + if (tag =3D=3D DT_PLTGOT || tag =3D=3D DT_HASH || + tag =3D=3D DT_STRTAB || tag =3D=3D DT_SYMTAB || + tag =3D=3D DT_RELA || tag =3D=3D DT_INIT || + tag =3D=3D DT_FINI || tag =3D=3D DT_REL || + tag =3D=3D DT_JMPREL || tag =3D=3D DT_VERSYM || + tag =3D=3D DT...

Hi Andi, Here's a couple of patches to fix up COMPAT_VDSO: The first is a straightforward implementation of Jan's original idea of relocating the VDSO to match its mapped location. Unlike Jan and Zach's version, I changed it to relocate based on the phdrs rather than the sections; the result is pleasantly compact. The second patch takes advantage of the fact that all the

Hi Andi, Here's a couple of patches to fix up COMPAT_VDSO: The first is a straightforward implementation of Jan's original idea of relocating the VDSO to match its mapped location. Unlike Jan and Zach's version, I changed it to relocate based on the phdrs rather than the sections; the result is pleasantly compact. The second patch takes advantage of the fact that all the

Hi Andi, Four patches: - clean up asm/bugs.h, by moving all the C code into its own C file - split identify_cpu() into boot and secondary variants, so that boot-time setup functions can be marked __init - repost of the COMPAT_VDSO patches with a bit more robustness from unknown DT_tags, and functions marked __init, since all this is boot-time only setup. Thanks, J --

Hi Andi, Four patches: - clean up asm/bugs.h, by moving all the C code into its own C file - split identify_cpu() into boot and secondary variants, so that boot-time setup functions can be marked __init - repost of the COMPAT_VDSO patches with a bit more robustness from unknown DT_tags, and functions marked __init, since all this is boot-time only setup. Thanks, J --

Hi, These patches contain support for some features that are already in Syslinux 4 but weren't working properly on the elflink branch. It's another step closer to feature parity with Syslinux 4. Having to jump through the comboot API for localboot support is less than ideal and I'll eventually fix that, probably when we move a big chunk of code from asm to C. Also, there's a