diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/genelf.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/tools/perf/util/genelf.c b/tools/perf/util/genelf.c index aed49806a09b..cdce7f173d00 100644 --- a/tools/perf/util/genelf.c +++ b/tools/perf/util/genelf.c @@ -16,7 +16,7 @@ #include <inttypes.h> #include <fcntl.h> #include <err.h> -#ifdef HAVE_DWARF_SUPPORT +#ifdef HAVE_LIBDW_SUPPORT #include <dwarf.h> #endif @@ -30,7 +30,7 @@ #define BUILD_ID_URANDOM /* different uuid for each run */ -#ifdef HAVE_LIBCRYPTO +#ifdef HAVE_LIBCRYPTO_SUPPORT #define BUILD_ID_MD5 #undef BUILD_ID_SHA /* does not seem to work well when linked with Java */ @@ -41,6 +41,7 @@ #endif #ifdef BUILD_ID_MD5 +#include <openssl/evp.h> #include <openssl/md5.h> #endif #endif @@ -53,11 +54,6 @@ typedef struct { char name[0]; /* Start of the name+desc data */ } Elf_Note; -struct options { - char *output; - int fd; -}; - static char shd_string_table[] = { 0, '.', 't', 'e', 'x', 't', 0, /* 1 */ @@ -138,15 +134,20 @@ gen_build_id(struct buildid_note *note, static void gen_build_id(struct buildid_note *note, unsigned long load_addr, const void *code, size_t csize) { - MD5_CTX context; + EVP_MD_CTX *mdctx; if (sizeof(note->build_id) < 16) errx(1, "build_id too small for MD5"); - MD5_Init(&context); - MD5_Update(&context, &load_addr, sizeof(load_addr)); - MD5_Update(&context, code, csize); - MD5_Final((unsigned char *)note->build_id, &context); + mdctx = EVP_MD_CTX_new(); + if (!mdctx) + errx(2, "failed to create EVP_MD_CTX"); + + EVP_DigestInit_ex(mdctx, EVP_md5(), NULL); + EVP_DigestUpdate(mdctx, &load_addr, sizeof(load_addr)); + EVP_DigestUpdate(mdctx, code, csize); + EVP_DigestFinal_ex(mdctx, (unsigned char *)note->build_id, NULL); + EVP_MD_CTX_free(mdctx); } #endif @@ -247,6 +248,7 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym, Elf_Data *d; Elf_Scn *scn; Elf_Ehdr *ehdr; + Elf_Phdr *phdr; Elf_Shdr *shdr; uint64_t eh_frame_base_offset; char *strsym = NULL; @@ -282,6 +284,19 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym, ehdr->e_shstrndx= unwinding ? 4 : 2; /* shdr index for section name */ /* + * setup program header + */ + phdr = elf_newphdr(e, 1); + phdr[0].p_type = PT_LOAD; + phdr[0].p_offset = GEN_ELF_TEXT_OFFSET; + phdr[0].p_vaddr = GEN_ELF_TEXT_OFFSET; + phdr[0].p_paddr = GEN_ELF_TEXT_OFFSET; + phdr[0].p_filesz = csize; + phdr[0].p_memsz = csize; + phdr[0].p_flags = PF_X | PF_R; + phdr[0].p_align = 8; + + /* * setup text section */ scn = elf_newscn(e); @@ -325,6 +340,7 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym, eh_frame_base_offset); if (retval) goto error; + retval = -1; } /* @@ -483,7 +499,7 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym, shdr->sh_size = sizeof(bnote); shdr->sh_entsize = 0; -#ifdef HAVE_DWARF_SUPPORT +#ifdef HAVE_LIBDW_SUPPORT if (debug && nr_debug_entries) { retval = jit_add_debug_info(e, load_addr, debug, nr_debug_entries); if (retval) |