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From: Szabolcs Nagy <nsz@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/arm/morello/main] aarch64: morello: fix ldconfig for purecap abi Date: Thu, 27 Oct 2022 13:57:32 +0000 (GMT) [thread overview] Message-ID: <20221027135735.256313851527@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7beb22bd94af7e1c7faae3a6c13a2db85af0e216 commit 7beb22bd94af7e1c7faae3a6c13a2db85af0e216 Author: Szabolcs Nagy <szabolcs.nagy@arm.com> Date: Fri Jul 15 08:15:02 2022 +0100 aarch64: morello: fix ldconfig for purecap abi Add purecap ld cache flag. Add the purecap ld.so name to known names. Handle lib64c system library paths. And set the purecap abi flag on cache entries. Diff: --- elf/cache.c | 3 +++ sysdeps/generic/ldconfig.h | 1 + sysdeps/unix/sysv/linux/aarch64/dl-cache.h | 9 +++++++++ sysdeps/unix/sysv/linux/aarch64/ldconfig.h | 2 ++ sysdeps/unix/sysv/linux/arm/readelflib.c | 9 ++++++++- 5 files changed, 23 insertions(+), 1 deletion(-) diff --git a/elf/cache.c b/elf/cache.c index 3d7d3a67bf..664ca6ac39 100644 --- a/elf/cache.c +++ b/elf/cache.c @@ -210,6 +210,9 @@ print_entry (const char *lib, int flag, uint64_t hwcap, case FLAG_AARCH64_LIB64: fputs (",AArch64", stdout); break; + case FLAG_AARCH64_PURECAP: + fputs (",purecap", stdout); + break; /* Uses the ARM soft-float ABI. */ case FLAG_ARM_LIBSF: fputs (",soft-float", stdout); diff --git a/sysdeps/generic/ldconfig.h b/sysdeps/generic/ldconfig.h index 7cc898db61..5a9e0589d9 100644 --- a/sysdeps/generic/ldconfig.h +++ b/sysdeps/generic/ldconfig.h @@ -45,6 +45,7 @@ #define FLAG_MIPS64_LIBN64_NAN2008 0x0e00 #define FLAG_RISCV_FLOAT_ABI_SOFT 0x0f00 #define FLAG_RISCV_FLOAT_ABI_DOUBLE 0x1000 +#define FLAG_AARCH64_PURECAP 0x1100 /* Name of auxiliary cache. */ #define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache" diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-cache.h b/sysdeps/unix/sysv/linux/aarch64/dl-cache.h index a35d04bc93..e456d8df30 100644 --- a/sysdeps/unix/sysv/linux/aarch64/dl-cache.h +++ b/sysdeps/unix/sysv/linux/aarch64/dl-cache.h @@ -20,6 +20,8 @@ #ifdef __LP64__ # define _DL_CACHE_DEFAULT_ID (FLAG_AARCH64_LIB64 | FLAG_ELF_LIBC6) +#elif defined __CHERI_PURE_CAPABILITY__ +# define _DL_CACHE_DEFAULT_ID (FLAG_AARCH64_PURECAP | FLAG_ELF_LIBC6) #else # define _DL_CACHE_DEFAULT_ID (FLAG_AARCH64_LIB32 | FLAG_ELF_LIBC6) #endif @@ -38,6 +40,11 @@ len -= 2; \ path[len] = '\0'; \ } \ + if (len >= 7 && ! memcmp (path + len - 7, "/lib64c", 7)) \ + { \ + len -= 3; \ + path[len] = '\0'; \ + } \ if (len >= 9 && ! memcmp (path + len - 9, "/libilp32", 9))\ { \ len -= 5; \ @@ -48,6 +55,8 @@ { \ memcpy (path + len, "64", 3); \ add_dir (path); \ + memcpy (path + len, "64c", 4); \ + add_dir (path); \ memcpy (path + len, "ilp32", 6); \ add_dir (path); \ } \ diff --git a/sysdeps/unix/sysv/linux/aarch64/ldconfig.h b/sysdeps/unix/sysv/linux/aarch64/ldconfig.h index 5cbfb32714..29920f7438 100644 --- a/sysdeps/unix/sysv/linux/aarch64/ldconfig.h +++ b/sysdeps/unix/sysv/linux/aarch64/ldconfig.h @@ -21,6 +21,8 @@ #define SYSDEP_KNOWN_INTERPRETER_NAMES \ { "/lib/ld-linux-aarch64.so.1", FLAG_ELF_LIBC6 }, \ { "/lib/ld-linux-aarch64_be.so.1", FLAG_ELF_LIBC6 }, \ + { "/lib/ld-linux-aarch64_purecap.so.1", FLAG_ELF_LIBC6 }, \ + { "/lib/ld-linux-aarch64_be_purecap.so.1", FLAG_ELF_LIBC6 }, \ { "/lib/ld-linux-aarch64_ilp32.so.1", FLAG_ELF_LIBC6 }, \ { "/lib/ld-linux-aarch64_be_ilp32.so.1", FLAG_ELF_LIBC6 }, \ { "/lib/ld-linux.so.3", FLAG_ELF_LIBC6 }, \ diff --git a/sysdeps/unix/sysv/linux/arm/readelflib.c b/sysdeps/unix/sysv/linux/arm/readelflib.c index d4956e2d25..62d4e137c6 100644 --- a/sysdeps/unix/sysv/linux/arm/readelflib.c +++ b/sysdeps/unix/sysv/linux/arm/readelflib.c @@ -55,11 +55,18 @@ process_elf_file (const char *file_name, const char *lib, int *flag, } else { + Elf64_Ehdr *elf64_header = (Elf64_Ehdr *) elf_header; + ret = process_elf64_file (file_name, lib, flag, isa_level, soname, file_contents, file_length); /* AArch64 libraries are always libc.so.6+. */ if (!ret) - *flag = FLAG_AARCH64_LIB64|FLAG_ELF_LIBC6; + { + if (elf64_header->e_flags & EF_AARCH64_CHERI_PURECAP) + *flag = FLAG_AARCH64_PURECAP|FLAG_ELF_LIBC6; + else + *flag = FLAG_AARCH64_LIB64|FLAG_ELF_LIBC6; + } } return ret; }
next reply other threads:[~2022-10-27 13:57 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-27 13:57 Szabolcs Nagy [this message] -- strict thread matches above, loose matches on Subject: below -- 2022-11-23 14:47 Szabolcs Nagy 2022-10-26 15:18 Szabolcs Nagy 2022-08-05 19:36 Szabolcs Nagy
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