search for: sh_flags

...at anoncvs.mirbsd.org:/cvs \ co -PA mksh % cd mksh % env CC=klcc CPPFLAGS=-DMKSH_NO_LIMITS sh Build.sh -r Then, ?./test.sh -v? fails, as does this: tg at frozenfish:~/mksh $ ./mksh -c 'echo foo; ls; echo bar' foo Build.sh check.t eval.c expr.o jobs.c lex.o mksh sh_flags.h syn.c var.c CVS dot.mkshrc eval.o funcs.c jobs.o main.c mksh.1 shf.c syn.o var.o Makefile edit.c exec.c funcs.o lalloc.c main.o setmode.c shf.o test.sh var_spec.h Rebuild.sh edit.o exec.o histrap.c lalloc.o misc.c setmode.o...

Hello, all experts. When I use pid provider, my Dscript with -F option output the codepath with flowindent as you know, e.g. -> main -> f1 -> f2 however I realized that the exec file I used at that time was stripped. Does anyone know the reason why I could see the function names? Thanks in advance. -- This message posted from opensolaris.org

...r = addr; + mbinfo.syms.e.num = eh64->e_shnum; + mbinfo.syms.e.size = eh64->e_shentsize; + mbinfo.syms.e.shndx = eh64->e_shstrndx; + + for (i = 0; i < eh64->e_shnum; i++) { + addr_t align; + + if (!sh64[i].sh_size) + continue; /* Empty section */ + if (sh64[i].sh_flags & SHF_ALLOC) + continue; /* SHF_ALLOC sections should have PHDRs */ + + align = sh64[i].sh_addralign ? sh64[i].sh_addralign : 0; + addr = map_data((char *)ptr + sh64[i].sh_offset, + sh64[i].sh_size, align, MAP_HIGH); + if (!addr) { + error("Failed to map symbol section\n&q...

...>e_type !=3D ET_DYN) + panic("Bogus ELF in vsyscall DSO\n"); + + hdr->e_entry +=3D VDSO_HIGH_BASE; + sechdrs =3D (void *)hdr + hdr->e_shoff; + secstrings =3D (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (i =3D 1; i < hdr->e_shnum; i++) { + if (!(sechdrs[i].sh_flags & SHF_ALLOC)) + continue; + + sechdrs[i].sh_addr +=3D VDSO_HIGH_BASE; + if (strcmp(secstrings+sechdrs[i].sh_name, ".dynsym") =3D=3D 0) { + Elf32_Sym *sym =3D (void *)hdr + sechdrs[i].sh_offset; + n =3D sechdrs[i].sh_size / sizeof(*sym); + for (j =3D 1; j < n; j++) { +...

...>e_type !=3D ET_DYN) + panic("Bogus ELF in vsyscall DSO\n"); + + hdr->e_entry +=3D VDSO_HIGH_BASE; + sechdrs =3D (void *)hdr + hdr->e_shoff; + secstrings =3D (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (i =3D 1; i < hdr->e_shnum; i++) { + if (!(sechdrs[i].sh_flags & SHF_ALLOC)) + continue; + + sechdrs[i].sh_addr +=3D VDSO_HIGH_BASE; + if (strcmp(secstrings+sechdrs[i].sh_name, ".dynsym") =3D=3D 0) { + Elf32_Sym *sym =3D (void *)hdr + sechdrs[i].sh_offset; + n =3D sechdrs[i].sh_size / sizeof(*sym); + for (j =3D 1; j < n; j++) { +...

...ela); + + if (sechdrs[i].sh_type != SHT_RELA) + continue; + + /* sort by type, symbol index and addend */ + sort(rels, numrels, sizeof(Elf64_Rela), cmp_rela, NULL); + + gots += count_gots(syms, rels, numrels); + } + + mod->arch.core.got->sh_type = SHT_NOBITS; + mod->arch.core.got->sh_flags = SHF_ALLOC; + mod->arch.core.got->sh_addralign = L1_CACHE_BYTES; + mod->arch.core.got->sh_size = (gots + 1) * sizeof(u64); + mod->arch.core.got_num_entries = 0; + mod->arch.core.got_max_entries = gots; + + /* + * If a _GLOBAL_OFFSET_TABLE_ symbol exists, make it absolute for +...

...ARN_ON(1); + break; + } + } + BUG_ON(ehdr->e_shentsize < sizeof(Elf32_Shdr)); + BUG_ON(ehdr->e_shnum >= SHN_LORESERVE); + for (i = 1; i < ehdr->e_shnum; ++i) { + Elf32_Shdr *shdr = (void *)((unsigned long)ehdr + ehdr->e_shoff + i * ehdr->e_shentsize); + + if (!(shdr->sh_flags & SHF_ALLOC)) + continue; + shdr->sh_addr += new_base - old_base; + switch(shdr->sh_type) { + case SHT_DYNAMIC: + case SHT_HASH: + case SHT_NOBITS: + case SHT_NOTE: + case SHT_PROGBITS: + case SHT_STRTAB: + case 0x6ffffffd: /* SHT_GNU_verdef */ + case 0x6fffffff: /* SHT_GNU_ve...

...ARN_ON(1); + break; + } + } + BUG_ON(ehdr->e_shentsize < sizeof(Elf32_Shdr)); + BUG_ON(ehdr->e_shnum >= SHN_LORESERVE); + for (i = 1; i < ehdr->e_shnum; ++i) { + Elf32_Shdr *shdr = (void *)((unsigned long)ehdr + ehdr->e_shoff + i * ehdr->e_shentsize); + + if (!(shdr->sh_flags & SHF_ALLOC)) + continue; + shdr->sh_addr += new_base - old_base; + switch(shdr->sh_type) { + case SHT_DYNAMIC: + case SHT_HASH: + case SHT_NOBITS: + case SHT_NOTE: + case SHT_PROGBITS: + case SHT_STRTAB: + case 0x6ffffffd: /* SHT_GNU_verdef */ + case 0x6fffffff: /* SHT_GNU_ve...

...ARN_ON(1); + break; + } + } + BUG_ON(ehdr->e_shentsize < sizeof(Elf32_Shdr)); + BUG_ON(ehdr->e_shnum >= SHN_LORESERVE); + for (i = 1; i < ehdr->e_shnum; ++i) { + Elf32_Shdr *shdr = (void *)((unsigned long)ehdr + ehdr->e_shoff + i * ehdr->e_shentsize); + + if (!(shdr->sh_flags & SHF_ALLOC)) + continue; + shdr->sh_addr += new_base - old_base; + switch(shdr->sh_type) { + case SHT_DYNAMIC: + case SHT_HASH: + case SHT_NOBITS: + case SHT_NOTE: + case SHT_PROGBITS: + case SHT_STRTAB: + case 0x6ffffffd: /* SHT_GNU_verdef */ + case 0x6fffffff: /* SHT_GNU_ve...

Create a configurable hole in the linear address space at the top of memory. A more advanced interface is needed to negotiate how much space the hypervisor is allowed to steal, but in the end, it seems most likely that a fixed constant size will be chosen for the compiled kernel, potentially propagated to an information page used by paravirtual initialization to determine interface compatibility.

Create a configurable hole in the linear address space at the top of memory. A more advanced interface is needed to negotiate how much space the hypervisor is allowed to steal, but in the end, it seems most likely that a fixed constant size will be chosen for the compiled kernel, potentially propagated to an information page used by paravirtual initialization to determine interface compatibility.

...ype !=3D ET_DYN) + panic("Bogus ELF in vsyscall DSO\n"); + + hdr->e_entry +=3D VSYSCALL_RELOCATION; + + sechdrs =3D (void *)hdr + hdr->e_shoff; + secstrings =3D (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (i =3D 1; i < hdr->e_shnum; i++) { + if (!(sechdrs[i].sh_flags & SHF_ALLOC)) + continue; + + sechdrs[i].sh_addr +=3D VSYSCALL_RELOCATION; + if (strcmp(secstrings+sechdrs[i].sh_name, ".dynsym") =3D=3D 0) { + Elf32_Sym *sym =3D (void *)hdr + sechdrs[i].sh_offset; + n =3D sechdrs[i].sh_size / sizeof(*sym); + for (j =3D 1; j < n; j++)...

...ype !=3D ET_DYN) + panic("Bogus ELF in vsyscall DSO\n"); + + hdr->e_entry +=3D VSYSCALL_RELOCATION; + + sechdrs =3D (void *)hdr + hdr->e_shoff; + secstrings =3D (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (i =3D 1; i < hdr->e_shnum; i++) { + if (!(sechdrs[i].sh_flags & SHF_ALLOC)) + continue; + + sechdrs[i].sh_addr +=3D VSYSCALL_RELOCATION; + if (strcmp(secstrings+sechdrs[i].sh_name, ".dynsym") =3D=3D 0) { + Elf32_Sym *sym =3D (void *)hdr + sechdrs[i].sh_offset; + n =3D sechdrs[i].sh_size / sizeof(*sym); + for (j =3D 1; j < n; 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 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 --

Changes: - patch v2: - Adapt patch to work post KPTI and compiler changes - Redo all performance testing with latest configs and compilers - Simplify mov macro on PIE (MOVABS now) - Reduce GOT footprint - patch v1: - Simplify ftrace implementation. - Use gcc mstack-protector-guard-reg=%gs with PIE when possible. - rfc v3: - Use --emit-relocs instead of -pie to reduce

Changes: - patch v2: - Adapt patch to work post KPTI and compiler changes - Redo all performance testing with latest configs and compilers - Simplify mov macro on PIE (MOVABS now) - Reduce GOT footprint - patch v1: - Simplify ftrace implementation. - Use gcc mstack-protector-guard-reg=%gs with PIE when possible. - rfc v3: - Use --emit-relocs instead of -pie to reduce

These patches make the changes necessary to build the kernel as Position Independent Executable (PIE) on x86_64. A PIE kernel can be relocated below the top 2G of the virtual address space. It allows to optionally extend the KASLR randomization range from 1G to 3G. Thanks a lot to Ard Biesheuvel & Kees Cook on their feedback on compiler changes, PIE support and KASLR in general. Thanks to

These patches make the changes necessary to build the kernel as Position Independent Executable (PIE) on x86_64. A PIE kernel can be relocated below the top 2G of the virtual address space. It allows to optionally extend the KASLR randomization range from 1G to 3G. Thanks a lot to Ard Biesheuvel & Kees Cook on their feedback on compiler changes, PIE support and KASLR in general. Thanks to

Changes: - patch v3: - Update on message to describe longer term PIE goal. - Minor change on ftrace if condition. - Changed code using xchgq. - patch v2: - Adapt patch to work post KPTI and compiler changes - Redo all performance testing with latest configs and compilers - Simplify mov macro on PIE (MOVABS now) - Reduce GOT footprint - patch v1: - Simplify ftrace