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From 990d377a92f4bab04bf6820fc81b3dcb6cf5e31d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 2 Jul 2018 09:52:23 +0800
Subject: [PATCH] build: Provide alternatives for glibc assumptions helps
compiling it on musl
Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Rebase to 0.175
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
Makefile.am | 2 +-
lib/fixedsizehash.h | 1 -
lib/system.h | 12 +++++++++++-
libdw/Makefile.am | 3 ++-
libdwfl/dwfl_build_id_find_elf.c | 1 +
libdwfl/dwfl_error.c | 4 +++-
libdwfl/dwfl_module_getdwarf.c | 1 +
libdwfl/libdwfl_crc32_file.c | 9 +++++++++
libdwfl/linux-kernel-modules.c | 1 +
libelf/elf.h | 8 ++++++--
libelf/libelf.h | 1 +
libelf/libelfP.h | 1 +
12 files changed, 37 insertions(+), 7 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index 2ff444e..41f77df 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -28,7 +28,7 @@ pkginclude_HEADERS = version.h
# Add doc back when we have some real content.
SUBDIRS = config m4 lib libelf libebl libdwelf libdwfl libdw libcpu libasm \
- backends src po tests
+ backends po tests
EXTRA_DIST = elfutils.spec GPG-KEY NOTES CONTRIBUTING \
COPYING COPYING-GPLV2 COPYING-LGPLV3
diff --git a/lib/fixedsizehash.h b/lib/fixedsizehash.h
index dac2a5f..43016fc 100644
--- a/lib/fixedsizehash.h
+++ b/lib/fixedsizehash.h
@@ -30,7 +30,6 @@
#include <errno.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/cdefs.h>
#include <system.h>
diff --git a/lib/system.h b/lib/system.h
index 292082b..308a762 100644
--- a/lib/system.h
+++ b/lib/system.h
@@ -30,7 +30,7 @@
#define LIB_SYSTEM_H 1
#include <errno.h>
-#include <error.h>
+#include <err.h>
#include <stddef.h>
#include <stdint.h>
#include <sys/param.h>
@@ -51,6 +51,8 @@
#else
# error "Unknown byte order"
#endif
+
+#define error(status, errno, ...) err(status, __VA_ARGS__)
#ifndef MAX
#define MAX(m, n) ((m) < (n) ? (n) : (m))
diff --git a/libdw/Makefile.am b/libdw/Makefile.am
index 7a3d532..7ac1241 100644
--- a/libdw/Makefile.am
+++ b/libdw/Makefile.am
@@ -108,7 +108,8 @@ am_libdw_pic_a_OBJECTS = $(libdw_a_SOURCES:.c=.os)
libdw_so_LIBS = libdw_pic.a ../libdwelf/libdwelf_pic.a \
../libdwfl/libdwfl_pic.a ../libebl/libebl.a
libdw_so_DEPS = ../lib/libeu.a ../libelf/libelf.so
-libdw_so_LDLIBS = $(libdw_so_DEPS) -ldl -lz $(argp_LDADD) $(zip_LIBS)
+fts_LDADD = -lfts
+libdw_so_LDLIBS = $(libdw_so_DEPS) -ldl -lz $(argp_LDADD) $(zip_LIBS) $(fts_LDADD)
libdw_so_SOURCES =
libdw.so$(EXEEXT): $(srcdir)/libdw.map $(libdw_so_LIBS) $(libdw_so_DEPS)
# The rpath is necessary for libebl because its $ORIGIN use will
diff --git a/libdwfl/dwfl_build_id_find_elf.c b/libdwfl/dwfl_build_id_find_elf.c
index cc6c3f6..b06ab59 100644
--- a/libdwfl/dwfl_build_id_find_elf.c
+++ b/libdwfl/dwfl_build_id_find_elf.c
@@ -31,6 +31,7 @@
#endif
#include "libdwflP.h"
+#include "system.h"
#include <inttypes.h>
#include <fcntl.h>
#include <unistd.h>
diff --git a/libdwfl/dwfl_error.c b/libdwfl/dwfl_error.c
index 7bcf61c..c345797 100644
--- a/libdwfl/dwfl_error.c
+++ b/libdwfl/dwfl_error.c
@@ -140,6 +140,7 @@ __libdwfl_seterrno (Dwfl_Error error)
const char *
dwfl_errmsg (int error)
{
+ static __thread char s[64] = "";
if (error == 0 || error == -1)
{
int last_error = global_error;
@@ -154,7 +155,8 @@ dwfl_errmsg (int error)
switch (error &~ 0xffff)
{
case OTHER_ERROR (ERRNO):
- return strerror_r (error & 0xffff, "bad", 0);
+ strerror_r (error & 0xffff, s, sizeof(s));
+ return s;
case OTHER_ERROR (LIBELF):
return elf_errmsg (error & 0xffff);
case OTHER_ERROR (LIBDW):
diff --git a/libdwfl/dwfl_module_getdwarf.c b/libdwfl/dwfl_module_getdwarf.c
index 56e6105..f4a0649 100644
--- a/libdwfl/dwfl_module_getdwarf.c
+++ b/libdwfl/dwfl_module_getdwarf.c
@@ -35,6 +35,7 @@
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
+#include "system.h"
#include "../libdw/libdwP.h" /* DWARF_E_* values are here. */
#include "../libelf/libelfP.h"
#include "system.h"
diff --git a/libdwfl/linux-kernel-modules.c b/libdwfl/linux-kernel-modules.c
index 360e4ee..b5aa397 100644
--- a/libdwfl/linux-kernel-modules.c
+++ b/libdwfl/linux-kernel-modules.c
@@ -41,6 +41,7 @@
#include "libelfP.h"
#include "libdwflP.h"
+#include "system.h"
#include <inttypes.h>
#include <errno.h>
#include <stdio.h>
diff --git a/libelf/elf.h b/libelf/elf.h
index 5dc632b..14da1b7 100644
--- a/libelf/elf.h
+++ b/libelf/elf.h
@@ -21,7 +21,9 @@
#include <features.h>
-__BEGIN_DECLS
+#ifdef __cplusplus
+extern "C" {
+#endif
/* Standard ELF types. */
@@ -3937,6 +3939,8 @@ enum
#define R_METAG_TLS_LE_HI16 60
#define R_METAG_TLS_LE_LO16 61
-__END_DECLS
+#ifdef __cplusplus
+}
+#endif
#endif /* elf.h */
diff --git a/libelf/libelf.h b/libelf/libelf.h
index 1ff11c9..c21e018 100644
--- a/libelf/libelf.h
+++ b/libelf/libelf.h
@@ -29,6 +29,7 @@
#ifndef _LIBELF_H
#define _LIBELF_H 1
+#include <fcntl.h>
#include <stdint.h>
#include <sys/types.h>
diff --git a/libelf/libelfP.h b/libelf/libelfP.h
index 9f3e8e9..10a347a 100644
--- a/libelf/libelfP.h
+++ b/libelf/libelfP.h
@@ -32,6 +32,7 @@
#include <ar.h>
#include <gelf.h>
+#include <libelf.h>
#include <errno.h>
#include <stdbool.h>
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