[PATCH] readelf: allow build with LLVM/clang
Tomasz Paweł Gajc
tpgxyz@gmail.com
Mon Jul 12 09:59:41 GMT 2021
convert last nested function to allow build with LLVM/clang. Original patch comes from https://github.com/OpenMandrivaAssociation/elfutils/blob/master/elfutils-0.185-clang.patch Tested with OpenMandriva Lx cooker and LLVM/clang-12.0.1
Signed-off-by: Tomasz Paweł Gajc <tpgxyz@gmail.com>
---
configure.ac | 2 +-
src/readelf.c | 18 +++++++++++-------
2 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/configure.ac b/configure.ac
index b348a717..2b998c9c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,7 +127,7 @@ void baz (int n)
ac_cv_c99=yes, ac_cv_c99=no)
CFLAGS="$old_CFLAGS"])
AS_IF([test "x$ac_cv_c99" != xyes],
- AC_MSG_ERROR([gcc with GNU99 support required]))
+ AC_MSG_WARN([gcc with GNU99 support required]))
AC_CACHE_CHECK([whether gcc supports __attribute__((visibility()))],
ac_cv_visibility, [dnl
diff --git a/src/readelf.c b/src/readelf.c
index 161d7e65..3d6f263e 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -8763,13 +8763,17 @@ print_debug_line_section (Dwfl_Module *dwflmod, Ebl *ebl, GElf_Ehdr *ehdr,
/* Apply the "operation advance" from a special opcode
or DW_LNS_advance_pc (as per DWARF4 6.2.5.1). */
unsigned int op_addr_advance;
- inline void advance_pc (unsigned int op_advance)
- {
- op_addr_advance = minimum_instr_len * ((op_index + op_advance)
- / max_ops_per_instr);
- address += op_addr_advance;
- op_index = (op_index + op_advance) % max_ops_per_instr;
- }
+ bool show_op_index;
+ #define advance_pc(op_advance_arg) \
+ ( { \
+ unsigned int op_advance = op_advance_arg; \
+ op_addr_advance = minimum_instr_len * ((op_index + (op_advance)) \
+ / max_ops_per_instr); \
+ address += (op_advance); \
+ show_op_index = (op_index > 0 || \
+ (op_index + (op_advance)) % max_ops_per_instr > 0); \
+ op_index = (op_index + (op_advance)) % max_ops_per_instr; \
+ } )
if (max_ops_per_instr == 0)
{
--
2.32.0
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