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authorNathan Binkert <binkertn@umich.edu>2007-05-26 18:15:22 -0700
committerNathan Binkert <binkertn@umich.edu>2007-05-26 18:15:22 -0700
commit4f0f217c1b6a8c888ff8a1c60d1eb36cbdf14490 (patch)
treead4f2696a1ada8f8a3e63bb4830f8011d6d25593 /ext/libelf/gelf_shdr.c
parent44ebb8d3e27329e9f0b501897585359b4ab696f2 (diff)
downloadgem5-4f0f217c1b6a8c888ff8a1c60d1eb36cbdf14490.tar.xz
Get rid of GNU libelf and its autoconf nastiness and replace
it with FreeBSD's implementation --HG-- extra : convert_revision : ef9c4551b9a6b54b76a89f286ff9804c55790621
Diffstat (limited to 'ext/libelf/gelf_shdr.c')
-rw-r--r--ext/libelf/gelf_shdr.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/ext/libelf/gelf_shdr.c b/ext/libelf/gelf_shdr.c
new file mode 100644
index 000000000..16d6434f3
--- /dev/null
+++ b/ext/libelf/gelf_shdr.c
@@ -0,0 +1,128 @@
+/*-
+ * Copyright (c) 2006 Joseph Koshy
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <limits.h>
+
+#include <assert.h>
+#include "gelf.h"
+#include "libelf.h"
+
+#include "_libelf.h"
+
+Elf32_Shdr *
+elf32_getshdr(Elf_Scn *s)
+{
+ return (_libelf_getshdr(s, ELFCLASS32));
+}
+
+Elf64_Shdr *
+elf64_getshdr(Elf_Scn *s)
+{
+ return (_libelf_getshdr(s, ELFCLASS64));
+}
+
+GElf_Shdr *
+gelf_getshdr(Elf_Scn *s, GElf_Shdr *d)
+{
+ int ec;
+ void *sh;
+ Elf32_Shdr *sh32;
+ Elf64_Shdr *sh64;
+
+ if (d == NULL) {
+ LIBELF_SET_ERROR(ARGUMENT, 0);
+ return (NULL);
+ }
+
+ if ((sh = _libelf_getshdr(s, ELFCLASSNONE)) == NULL)
+ return (NULL);
+
+ ec = s->s_elf->e_class;
+ assert(ec == ELFCLASS32 || ec == ELFCLASS64);
+
+ if (ec == ELFCLASS32) {
+ sh32 = (Elf32_Shdr *) sh;
+
+ d->sh_name = sh32->sh_name;
+ d->sh_type = sh32->sh_type;
+ d->sh_flags = (Elf64_Xword) sh32->sh_flags;
+ d->sh_addr = (Elf64_Addr) sh32->sh_addr;
+ d->sh_offset = (Elf64_Off) sh32->sh_offset;
+ d->sh_size = (Elf64_Xword) sh32->sh_size;
+ d->sh_link = sh32->sh_link;
+ d->sh_info = sh32->sh_info;
+ d->sh_addralign = (Elf64_Xword) sh32->sh_addralign;
+ d->sh_entsize = (Elf64_Xword) sh32->sh_entsize;
+ } else {
+ sh64 = (Elf64_Shdr *) sh;
+ *d = *sh64;
+ }
+
+ return (d);
+}
+
+int
+gelf_update_shdr(Elf_Scn *scn, GElf_Shdr *s)
+{
+ int ec;
+ Elf *e;
+ Elf32_Shdr *sh32;
+
+
+ if (s == NULL || scn == NULL || (e = scn->s_elf) == NULL ||
+ e->e_kind != ELF_K_ELF ||
+ ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
+ LIBELF_SET_ERROR(ARGUMENT, 0);
+ return (0);
+ }
+
+ if (e->e_cmd == ELF_C_READ) {
+ LIBELF_SET_ERROR(MODE, 0);
+ return (0);
+ }
+
+ if (ec == ELFCLASS64) {
+ scn->s_shdr.s_shdr64 = *s;
+ return (1);
+ }
+
+ sh32 = &scn->s_shdr.s_shdr32;
+
+ sh32->sh_name = s->sh_name;
+ sh32->sh_type = s->sh_type;
+ LIBELF_COPY_U32(sh32, s, sh_flags);
+ LIBELF_COPY_U32(sh32, s, sh_addr);
+ LIBELF_COPY_U32(sh32, s, sh_offset);
+ LIBELF_COPY_U32(sh32, s, sh_size);
+ sh32->sh_link = s->sh_link;
+ sh32->sh_info = s->sh_info;
+ LIBELF_COPY_U32(sh32, s, sh_addralign);
+ LIBELF_COPY_U32(sh32, s, sh_entsize);
+
+ (void) elf_flagscn(scn, ELF_C_SET, ELF_F_DIRTY);
+
+ return (1);
+}