From: Thomas Garnier <thgarnie@google.com> To: "Herbert Xu" <herbert@gondor.apana.org.au>, "David S . Miller" <davem@davemloft.net>, "Thomas Gleixner" <tglx@linutronix.de>, "Ingo Molnar" <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>, "Peter Zijlstra" <peterz@infradead.org>, "Josh Poimboeuf" <jpoimboe@redhat.com>, "Thomas Garnier" <thgarnie@google.com>, "Arnd Bergmann" <arnd@arndb.de>, "Matthias Kaehlcke" <mka@chromium.org>, "Boris Ostrovsky" <boris.ostrovsky@oracle.com>, "Juergen Gross" <jgross@suse.com>, "Paolo Bonzini" <pbonzini@redhat.com>, "Radim Krčmář" <rkrcmar@redhat.com>, "Joerg Roedel" <joro@8bytes.org>, "Andy Lutomirski" <luto@kernel.org>, "Borislav Petkov" <bp@alien8.de>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, "Brian Gerst" <brgerst@gmail.com>, "Borislav Petkov" <bp@suse.de>, "Christian Borntraeger" <borntraeger@de.ibm.com>, "Rafael J . Wysocki" <rjw@rjwysocki.net> Cc: linux-arch@vger.kernel.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-sparse@vger.kernel.org, linux-crypto@vger.kernel.org, kernel-hardening@lists.openwall.com, xen-devel@lists.xenproject.org Subject: [RFC 20/22] x86/relocs: Add option to generate 64-bit relocations Date: Tue, 18 Jul 2017 15:33:31 -0700 [thread overview] Message-ID: <20170718223333.110371-21-thgarnie@google.com> (raw) In-Reply-To: <20170718223333.110371-1-thgarnie@google.com> The x86 relocation tool generates a list of 32-bit signed integers. There was no need to use 64-bit integers because all addresses where above the 2G top of the memory. This change add a large-reloc option to generate 64-bit unsigned integers. It can be used when the kernel plan to go below the top 2G and 32-bit integers are not enough. Signed-off-by: Thomas Garnier <thgarnie@google.com> --- arch/x86/tools/relocs.c | 60 +++++++++++++++++++++++++++++++++--------- arch/x86/tools/relocs.h | 4 +-- arch/x86/tools/relocs_common.c | 15 +++++++---- 3 files changed, 60 insertions(+), 19 deletions(-) diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index 70f523dd68ff..19b3e6c594b1 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -12,8 +12,14 @@ static Elf_Ehdr ehdr; +#if ELF_BITS == 64 +typedef uint64_t rel_off_t; +#else +typedef uint32_t rel_off_t; +#endif + struct relocs { - uint32_t *offset; + rel_off_t *offset; unsigned long count; unsigned long size; }; @@ -627,7 +633,7 @@ static void print_absolute_relocs(void) printf("\n"); } -static void add_reloc(struct relocs *r, uint32_t offset) +static void add_reloc(struct relocs *r, rel_off_t offset) { if (r->count == r->size) { unsigned long newsize = r->size + 50000; @@ -983,26 +989,48 @@ static void sort_relocs(struct relocs *r) qsort(r->offset, r->count, sizeof(r->offset[0]), cmp_relocs); } -static int write32(uint32_t v, FILE *f) +static int write32(rel_off_t rel, FILE *f) { - unsigned char buf[4]; + unsigned char buf[sizeof(uint32_t)]; + uint32_t v = (uint32_t)rel; put_unaligned_le32(v, buf); - return fwrite(buf, 1, 4, f) == 4 ? 0 : -1; + return fwrite(buf, 1, sizeof(buf), f) == sizeof(buf) ? 0 : -1; } -static int write32_as_text(uint32_t v, FILE *f) +static int write32_as_text(rel_off_t rel, FILE *f) { + uint32_t v = (uint32_t)rel; return fprintf(f, "\t.long 0x%08"PRIx32"\n", v) > 0 ? 0 : -1; } -static void emit_relocs(int as_text, int use_real_mode) +static int write64(rel_off_t rel, FILE *f) +{ + unsigned char buf[sizeof(uint64_t)]; + uint64_t v = (uint64_t)rel; + + put_unaligned_le64(v, buf); + return fwrite(buf, 1, sizeof(buf), f) == sizeof(buf) ? 0 : -1; +} + +static int write64_as_text(rel_off_t rel, FILE *f) +{ + uint64_t v = (uint64_t)rel; + return fprintf(f, "\t.quad 0x%016"PRIx64"\n", v) > 0 ? 0 : -1; +} + +static void emit_relocs(int as_text, int use_real_mode, int use_large_reloc) { int i; - int (*write_reloc)(uint32_t, FILE *) = write32; + int (*write_reloc)(rel_off_t, FILE *); int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym, const char *symname); + if (use_large_reloc) + write_reloc = write64; + else + write_reloc = write32; + #if ELF_BITS == 64 if (!use_real_mode) do_reloc = do_reloc64; @@ -1013,6 +1041,9 @@ static void emit_relocs(int as_text, int use_real_mode) do_reloc = do_reloc32; else do_reloc = do_reloc_real; + + /* Large relocations only for 64-bit */ + use_large_reloc = 0; #endif /* Collect up the relocations */ @@ -1036,8 +1067,13 @@ static void emit_relocs(int as_text, int use_real_mode) * gas will like. */ printf(".section \".data.reloc\",\"a\"\n"); - printf(".balign 4\n"); - write_reloc = write32_as_text; + if (use_large_reloc) { + printf(".balign 8\n"); + write_reloc = write64_as_text; + } else { + printf(".balign 4\n"); + write_reloc = write32_as_text; + } } if (use_real_mode) { @@ -1131,7 +1167,7 @@ static void print_reloc_info(void) void process(FILE *fp, int use_real_mode, int as_text, int show_absolute_syms, int show_absolute_relocs, - int show_reloc_info) + int show_reloc_info, int use_large_reloc) { regex_init(use_real_mode); read_ehdr(fp); @@ -1153,5 +1189,5 @@ void process(FILE *fp, int use_real_mode, int as_text, print_reloc_info(); return; } - emit_relocs(as_text, use_real_mode); + emit_relocs(as_text, use_real_mode, use_large_reloc); } diff --git a/arch/x86/tools/relocs.h b/arch/x86/tools/relocs.h index 1d23bf953a4a..cb771cc4412d 100644 --- a/arch/x86/tools/relocs.h +++ b/arch/x86/tools/relocs.h @@ -30,8 +30,8 @@ enum symtype { void process_32(FILE *fp, int use_real_mode, int as_text, int show_absolute_syms, int show_absolute_relocs, - int show_reloc_info); + int show_reloc_info, int use_large_reloc); void process_64(FILE *fp, int use_real_mode, int as_text, int show_absolute_syms, int show_absolute_relocs, - int show_reloc_info); + int show_reloc_info, int use_large_reloc); #endif /* RELOCS_H */ diff --git a/arch/x86/tools/relocs_common.c b/arch/x86/tools/relocs_common.c index acab636bcb34..9cf1391af50a 100644 --- a/arch/x86/tools/relocs_common.c +++ b/arch/x86/tools/relocs_common.c @@ -11,14 +11,14 @@ void die(char *fmt, ...) static void usage(void) { - die("relocs [--abs-syms|--abs-relocs|--reloc-info|--text|--realmode]" \ - " vmlinux\n"); + die("relocs [--abs-syms|--abs-relocs|--reloc-info|--text|--realmode|" \ + "--large-reloc] vmlinux\n"); } int main(int argc, char **argv) { int show_absolute_syms, show_absolute_relocs, show_reloc_info; - int as_text, use_real_mode; + int as_text, use_real_mode, use_large_reloc; const char *fname; FILE *fp; int i; @@ -29,6 +29,7 @@ int main(int argc, char **argv) show_reloc_info = 0; as_text = 0; use_real_mode = 0; + use_large_reloc = 0; fname = NULL; for (i = 1; i < argc; i++) { char *arg = argv[i]; @@ -53,6 +54,10 @@ int main(int argc, char **argv) use_real_mode = 1; continue; } + if (strcmp(arg, "--large-reloc") == 0) { + use_large_reloc = 1; + continue; + } } else if (!fname) { fname = arg; @@ -74,11 +79,11 @@ int main(int argc, char **argv) if (e_ident[EI_CLASS] == ELFCLASS64) process_64(fp, use_real_mode, as_text, show_absolute_syms, show_absolute_relocs, - show_reloc_info); + show_reloc_info, use_large_reloc); else process_32(fp, use_real_mode, as_text, show_absolute_syms, show_absolute_relocs, - show_reloc_info); + show_reloc_info, use_large_reloc); fclose(fp); return 0; } -- 2.13.2.932.g7449e964c-goog _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Garnier <thgarnie@google.com> To: "Herbert Xu" <herbert@gondor.apana.org.au>, "David S . Miller" <davem@davemloft.net>, "Thomas Gleixner" <tglx@linutronix.de>, "Ingo Molnar" <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>, "Peter Zijlstra" <peterz@infradead.org>, "Josh Poimboeuf" <jpoimboe@redhat.com>, "Thomas Garnier" <thgarnie@google.com>, "Arnd Bergmann" <arnd@arndb.de>, "Matthias Kaehlcke" <mka@chromium.org>, "Boris Ostrovsky" <boris.ostrovsky@oracle.com>, "Juergen Gross" <jgross@suse.com>, "Paolo Bonzini" <pbonzini@redhat.com>, "Radim Krčmář" <rkrcmar@redhat.com>, "Joerg Roedel" <joro@8bytes.org>, "Andy Lutomirski" <luto@kernel.org>, "Borislav Petkov" <bp@alien8.de>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, "Brian Gerst" <brgerst@gmail.com>, "Borislav Petkov" <bp@suse.de>, "Christian Borntraeger" <borntraeger@de.ibm.com>, "Rafael J . Wysocki" <rjw@rjwysocki.net>, "Len Brown" <len.brown@intel.com>, "Pavel Machek" <pavel@ucw.cz>, "Tejun Heo" <tj@kernel.org>, "Christoph Lameter" <cl@linux.com>, "Kees Cook" <keescook@chromium.org>, "Paul Gortmaker" <paul.gortmaker@windriver.com>, "Chris Metcalf" <cmetcalf@mellanox.com>, "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>, "Andrew Morton" <akpm@linux-foundation.org>, "Christopher Li" <sparse@chrisli.org>, "Dou Liyang" <douly.fnst@cn.fujitsu.com>, "Masahiro Yamada" <yamada.masahiro@socionext.com>, "Daniel Borkmann" <daniel@iogearbox.net>, "Markus Trippelsdorf" <markus@trippelsdorf.de>, "Peter Foley" <pefoley2@pefoley.com>, "Steven Rostedt" <rostedt@goodmis.org>, "Tim Chen" <tim.c.chen@linux.intel.com>, "Ard Biesheuvel" <ard.biesheuvel@linaro.org>, "Catalin Marinas" <catalin.marinas@arm.com>, "Matthew Wilcox" <mawilcox@microsoft.com>, "Michal Hocko" <mhocko@suse.com>, "Rob Landley" <rob@landley.net>, "Jiri Kosina" <jkosina@suse.cz>, "H . J . Lu" <hjl.tools@gmail.com>, "Paul Bolle" <pebolle@tiscali.nl>, "Baoquan He" <bhe@redhat.com>, "Daniel Micay" <danielmicay@gmail.com> Cc: x86@kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org, linux-arch@vger.kernel.org, linux-sparse@vger.kernel.org, kernel-hardening@lists.openwall.com Subject: [kernel-hardening] [RFC 20/22] x86/relocs: Add option to generate 64-bit relocations Date: Tue, 18 Jul 2017 15:33:31 -0700 [thread overview] Message-ID: <20170718223333.110371-21-thgarnie@google.com> (raw) In-Reply-To: <20170718223333.110371-1-thgarnie@google.com> The x86 relocation tool generates a list of 32-bit signed integers. There was no need to use 64-bit integers because all addresses where above the 2G top of the memory. This change add a large-reloc option to generate 64-bit unsigned integers. It can be used when the kernel plan to go below the top 2G and 32-bit integers are not enough. Signed-off-by: Thomas Garnier <thgarnie@google.com> --- arch/x86/tools/relocs.c | 60 +++++++++++++++++++++++++++++++++--------- arch/x86/tools/relocs.h | 4 +-- arch/x86/tools/relocs_common.c | 15 +++++++---- 3 files changed, 60 insertions(+), 19 deletions(-) diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index 70f523dd68ff..19b3e6c594b1 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -12,8 +12,14 @@ static Elf_Ehdr ehdr; +#if ELF_BITS == 64 +typedef uint64_t rel_off_t; +#else +typedef uint32_t rel_off_t; +#endif + struct relocs { - uint32_t *offset; + rel_off_t *offset; unsigned long count; unsigned long size; }; @@ -627,7 +633,7 @@ static void print_absolute_relocs(void) printf("\n"); } -static void add_reloc(struct relocs *r, uint32_t offset) +static void add_reloc(struct relocs *r, rel_off_t offset) { if (r->count == r->size) { unsigned long newsize = r->size + 50000; @@ -983,26 +989,48 @@ static void sort_relocs(struct relocs *r) qsort(r->offset, r->count, sizeof(r->offset[0]), cmp_relocs); } -static int write32(uint32_t v, FILE *f) +static int write32(rel_off_t rel, FILE *f) { - unsigned char buf[4]; + unsigned char buf[sizeof(uint32_t)]; + uint32_t v = (uint32_t)rel; put_unaligned_le32(v, buf); - return fwrite(buf, 1, 4, f) == 4 ? 0 : -1; + return fwrite(buf, 1, sizeof(buf), f) == sizeof(buf) ? 0 : -1; } -static int write32_as_text(uint32_t v, FILE *f) +static int write32_as_text(rel_off_t rel, FILE *f) { + uint32_t v = (uint32_t)rel; return fprintf(f, "\t.long 0x%08"PRIx32"\n", v) > 0 ? 0 : -1; } -static void emit_relocs(int as_text, int use_real_mode) +static int write64(rel_off_t rel, FILE *f) +{ + unsigned char buf[sizeof(uint64_t)]; + uint64_t v = (uint64_t)rel; + + put_unaligned_le64(v, buf); + return fwrite(buf, 1, sizeof(buf), f) == sizeof(buf) ? 0 : -1; +} + +static int write64_as_text(rel_off_t rel, FILE *f) +{ + uint64_t v = (uint64_t)rel; + return fprintf(f, "\t.quad 0x%016"PRIx64"\n", v) > 0 ? 0 : -1; +} + +static void emit_relocs(int as_text, int use_real_mode, int use_large_reloc) { int i; - int (*write_reloc)(uint32_t, FILE *) = write32; + int (*write_reloc)(rel_off_t, FILE *); int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym, const char *symname); + if (use_large_reloc) + write_reloc = write64; + else + write_reloc = write32; + #if ELF_BITS == 64 if (!use_real_mode) do_reloc = do_reloc64; @@ -1013,6 +1041,9 @@ static void emit_relocs(int as_text, int use_real_mode) do_reloc = do_reloc32; else do_reloc = do_reloc_real; + + /* Large relocations only for 64-bit */ + use_large_reloc = 0; #endif /* Collect up the relocations */ @@ -1036,8 +1067,13 @@ static void emit_relocs(int as_text, int use_real_mode) * gas will like. */ printf(".section \".data.reloc\",\"a\"\n"); - printf(".balign 4\n"); - write_reloc = write32_as_text; + if (use_large_reloc) { + printf(".balign 8\n"); + write_reloc = write64_as_text; + } else { + printf(".balign 4\n"); + write_reloc = write32_as_text; + } } if (use_real_mode) { @@ -1131,7 +1167,7 @@ static void print_reloc_info(void) void process(FILE *fp, int use_real_mode, int as_text, int show_absolute_syms, int show_absolute_relocs, - int show_reloc_info) + int show_reloc_info, int use_large_reloc) { regex_init(use_real_mode); read_ehdr(fp); @@ -1153,5 +1189,5 @@ void process(FILE *fp, int use_real_mode, int as_text, print_reloc_info(); return; } - emit_relocs(as_text, use_real_mode); + emit_relocs(as_text, use_real_mode, use_large_reloc); } diff --git a/arch/x86/tools/relocs.h b/arch/x86/tools/relocs.h index 1d23bf953a4a..cb771cc4412d 100644 --- a/arch/x86/tools/relocs.h +++ b/arch/x86/tools/relocs.h @@ -30,8 +30,8 @@ enum symtype { void process_32(FILE *fp, int use_real_mode, int as_text, int show_absolute_syms, int show_absolute_relocs, - int show_reloc_info); + int show_reloc_info, int use_large_reloc); void process_64(FILE *fp, int use_real_mode, int as_text, int show_absolute_syms, int show_absolute_relocs, - int show_reloc_info); + int show_reloc_info, int use_large_reloc); #endif /* RELOCS_H */ diff --git a/arch/x86/tools/relocs_common.c b/arch/x86/tools/relocs_common.c index acab636bcb34..9cf1391af50a 100644 --- a/arch/x86/tools/relocs_common.c +++ b/arch/x86/tools/relocs_common.c @@ -11,14 +11,14 @@ void die(char *fmt, ...) static void usage(void) { - die("relocs [--abs-syms|--abs-relocs|--reloc-info|--text|--realmode]" \ - " vmlinux\n"); + die("relocs [--abs-syms|--abs-relocs|--reloc-info|--text|--realmode|" \ + "--large-reloc] vmlinux\n"); } int main(int argc, char **argv) { int show_absolute_syms, show_absolute_relocs, show_reloc_info; - int as_text, use_real_mode; + int as_text, use_real_mode, use_large_reloc; const char *fname; FILE *fp; int i; @@ -29,6 +29,7 @@ int main(int argc, char **argv) show_reloc_info = 0; as_text = 0; use_real_mode = 0; + use_large_reloc = 0; fname = NULL; for (i = 1; i < argc; i++) { char *arg = argv[i]; @@ -53,6 +54,10 @@ int main(int argc, char **argv) use_real_mode = 1; continue; } + if (strcmp(arg, "--large-reloc") == 0) { + use_large_reloc = 1; + continue; + } } else if (!fname) { fname = arg; @@ -74,11 +79,11 @@ int main(int argc, char **argv) if (e_ident[EI_CLASS] == ELFCLASS64) process_64(fp, use_real_mode, as_text, show_absolute_syms, show_absolute_relocs, - show_reloc_info); + show_reloc_info, use_large_reloc); else process_32(fp, use_real_mode, as_text, show_absolute_syms, show_absolute_relocs, - show_reloc_info); + show_reloc_info, use_large_reloc); fclose(fp); return 0; } -- 2.13.2.932.g7449e964c-goog
next prev parent reply other threads:[~2017-07-18 22:33 UTC|newest] Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-07-18 22:33 x86: PIE support and option to extend KASLR randomization Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 01/22] x86/crypto: Adapt assembly for PIE support Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` Thomas Garnier 2017-07-18 22:33 ` [RFC 02/22] x86: Use symbol name on bug table " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 03/22] x86: Use symbol name in jump " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 04/22] x86: Add macro to get symbol address " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 05/22] xen: Adapt assembly " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 06/22] kvm: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-19 2:49 ` Brian Gerst 2017-07-19 2:49 ` [kernel-hardening] " Brian Gerst 2017-07-19 15:40 ` Thomas Garnier 2017-07-19 15:40 ` [kernel-hardening] " Thomas Garnier 2017-07-19 22:27 ` H. Peter Anvin 2017-07-19 22:27 ` [kernel-hardening] " H. Peter Anvin 2017-07-19 22:44 ` Thomas Garnier 2017-07-19 22:44 ` [kernel-hardening] " Thomas Garnier 2017-07-19 22:44 ` Thomas Garnier 2017-07-19 22:58 ` Ard Biesheuvel 2017-07-19 22:58 ` [kernel-hardening] " Ard Biesheuvel 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 23:47 ` H. Peter Anvin 2017-07-19 22:58 ` Ard Biesheuvel 2017-07-19 22:27 ` H. Peter Anvin 2017-07-19 15:40 ` Thomas Garnier 2017-07-19 2:49 ` Brian Gerst 2017-07-18 22:33 ` [RFC 07/22] x86: relocate_kernel - " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-19 22:58 ` H. Peter Anvin 2017-07-19 22:58 ` [kernel-hardening] " H. Peter Anvin 2017-07-19 23:23 ` Thomas Garnier 2017-07-19 23:23 ` Thomas Garnier 2017-07-19 23:23 ` [kernel-hardening] " Thomas Garnier 2017-07-19 22:58 ` H. Peter Anvin 2017-07-18 22:33 ` [RFC 08/22] x86/entry/64: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 09/22] x86: pm-trace - " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 10/22] x86/CPU: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 11/22] x86/acpi: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 12/22] x86/boot/64: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 13/22] x86/power/64: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-19 18:41 ` Pavel Machek 2017-07-19 18:41 ` [kernel-hardening] " Pavel Machek 2017-07-19 18:41 ` Pavel Machek 2017-07-18 22:33 ` [RFC 14/22] x86/paravirt: " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 15/22] x86/boot/64: Use _text in a global " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 16/22] x86/percpu: Adapt percpu " Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-19 3:08 ` Brian Gerst 2017-07-19 3:08 ` [kernel-hardening] " Brian Gerst 2017-07-19 18:26 ` Thomas Garnier 2017-07-19 18:26 ` Thomas Garnier 2017-07-19 18:26 ` [kernel-hardening] " Thomas Garnier 2017-07-19 23:33 ` H. Peter Anvin 2017-07-19 23:33 ` H. Peter Anvin 2017-07-19 23:33 ` [kernel-hardening] " H. Peter Anvin 2017-07-20 2:21 ` H. Peter Anvin 2017-07-20 2:21 ` [kernel-hardening] " H. Peter Anvin 2017-07-20 3:03 ` H. Peter Anvin 2017-07-20 3:03 ` H. Peter Anvin 2017-07-20 3:03 ` [kernel-hardening] " H. Peter Anvin 2017-07-20 2:21 ` H. Peter Anvin 2017-07-20 14:26 ` Thomas Garnier 2017-07-20 14:26 ` Thomas Garnier 2017-07-20 14:26 ` [kernel-hardening] " Thomas Garnier 2017-08-02 16:42 ` Thomas Garnier 2017-08-02 16:42 ` Thomas Garnier 2017-08-02 16:42 ` [kernel-hardening] " Thomas Garnier 2017-08-02 16:56 ` Kees Cook 2017-08-02 16:56 ` [kernel-hardening] " Kees Cook 2017-08-02 18:05 ` Thomas Garnier 2017-08-02 18:05 ` Thomas Garnier 2017-08-02 18:05 ` [kernel-hardening] " Thomas Garnier 2017-08-02 16:56 ` Kees Cook 2017-07-19 3:08 ` Brian Gerst 2017-07-18 22:33 ` [RFC 17/22] compiler: Option to default to hidden symbols Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 18/22] x86/relocs: Handle DYN relocations for PIE support Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` [RFC 19/22] x86/pie: Add option to build the kernel as PIE for x86_64 Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-18 22:33 ` Thomas Garnier [this message] 2017-07-18 22:33 ` [kernel-hardening] [RFC 20/22] x86/relocs: Add option to generate 64-bit relocations Thomas Garnier 2017-07-19 22:33 ` H. Peter Anvin 2017-07-19 22:33 ` H. Peter Anvin 2017-07-19 22:33 ` [kernel-hardening] " H. Peter Anvin 2017-07-19 22:47 ` Thomas Garnier 2017-07-19 22:47 ` [kernel-hardening] " Thomas Garnier 2017-07-19 23:08 ` H. Peter Anvin 2017-07-19 23:08 ` H. Peter Anvin 2017-07-19 23:08 ` [kernel-hardening] " H. Peter Anvin 2017-07-19 23:25 ` Thomas Garnier 2017-07-19 23:25 ` [kernel-hardening] " Thomas Garnier 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:45 ` H. Peter Anvin 2017-07-19 23:25 ` Thomas Garnier 2017-07-19 22:47 ` Thomas Garnier 2017-07-18 22:33 ` [RFC 21/22] x86/module: Add support for mcmodel large and PLTs Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-19 1:35 ` H. Peter Anvin 2017-07-19 1:35 ` H. Peter Anvin 2017-07-19 1:35 ` [kernel-hardening] " H. Peter Anvin 2017-07-19 3:59 ` Brian Gerst 2017-07-19 3:59 ` [kernel-hardening] " Brian Gerst 2017-07-19 15:58 ` Thomas Garnier 2017-07-19 15:58 ` Thomas Garnier 2017-07-19 15:58 ` [kernel-hardening] " Thomas Garnier 2017-07-19 17:34 ` Brian Gerst 2017-07-19 17:34 ` [kernel-hardening] " Brian Gerst 2017-07-24 16:32 ` Thomas Garnier 2017-07-24 16:32 ` Thomas Garnier 2017-07-24 16:32 ` [kernel-hardening] " Thomas Garnier 2017-07-19 17:34 ` Brian Gerst 2017-07-19 3:59 ` Brian Gerst 2017-07-18 22:33 ` [RFC 22/22] x86/kaslr: Add option to extend KASLR range from 1GB to 3GB Thomas Garnier 2017-07-18 22:33 ` [kernel-hardening] " Thomas Garnier 2017-07-19 12:10 ` Baoquan He 2017-07-19 12:10 ` Baoquan He 2017-07-19 12:10 ` [kernel-hardening] " Baoquan He 2017-07-19 13:49 ` Baoquan He 2017-07-19 13:49 ` Baoquan He 2017-07-19 13:49 ` [kernel-hardening] " Baoquan He 2017-07-19 14:08 ` x86: PIE support and option to extend KASLR randomization Christopher Lameter 2017-07-19 14:08 ` [kernel-hardening] " Christopher Lameter 2017-07-19 19:21 ` Kees Cook 2017-07-19 19:21 ` Kees Cook 2017-07-19 19:21 ` [kernel-hardening] " Kees Cook 2017-07-19 14:08 ` Christopher Lameter
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