app-forensics/honggfuzz: support binutils-2.39

Backported upstream fix from their git master.

Closes: https://bugs.gentoo.org/868126
Signed-off-by: Marek Szuba <marecki@gentoo.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/app-forensics/honggfuzz/files/honggfuzz-2.5_binutils239.patch b/app-forensics/honggfuzz/files/honggfuzz-2.5_binutils239.patch
new file mode 100644
index 000000000000..af574bc495a0
--- /dev/null
+++ b/app-forensics/honggfuzz/files/honggfuzz-2.5_binutils239.patch
@@ -0,0 +1,51 @@
+From 23c3da7ea63e4a841fa0e181d173e16b437adff0 Mon Sep 17 00:00:00 2001
+From: Robert Swiecki <robert@swiecki.net>
+Date: Thu, 2 Jun 2022 23:17:49 +0200
+Subject: [PATCH] Always pass 4 arguments to init_disassemble_info(), no matter
+ what's the declaration. binutils/libopcode offers an unstable interface
+
+---
+ linux/bfd.c | 23 +++++++++++++++++++++--
+ 1 file changed, 21 insertions(+), 2 deletions(-)
+
+diff --git a/linux/bfd.c b/linux/bfd.c
+index 228365f69..236f050ec 100644
+--- a/linux/bfd.c
++++ b/linux/bfd.c
+@@ -197,6 +197,24 @@ static int arch_bfdFPrintF(void* buf, const char* fmt, ...) {
+     return ret;
+ }
+ 
++static int arch_bfdFPrintFStyled(void* buf, int style HF_ATTR_UNUSED, const char* fmt, ...) {
++    va_list args;
++    va_start(args, fmt);
++    int ret = util_vssnprintf(buf, _HF_INSTR_SZ, fmt, args);
++    va_end(args);
++
++    return ret;
++}
++
++/*
++ * binutils/libopcode has an unstable public interface. At some point in time the function
++ * init_disassemble_info() started taking 4 arguments instead of 3. Always pass 4 arguments to it,
++ * no matter what's the declaration.
++ */
++static void arch_bfdInitDisassembleInfoStub(
++    struct disassemble_info* info, char* instr, void* bfd_printf_func, void* bfd_printf_styled_func)
++    __attribute__((weakref, alias("init_disassemble_info")));
++
+ void arch_bfdDisasm(pid_t pid, uint8_t* mem, size_t size, char* instr) {
+     MX_SCOPED_LOCK(&arch_bfd_mutex);
+ 
+@@ -227,8 +245,9 @@ void arch_bfdDisasm(pid_t pid, uint8_t* mem, size_t size, char* instr) {
+         return;
+     }
+ 
+-    struct disassemble_info info;
+-    init_disassemble_info(&info, instr, arch_bfdFPrintF);
++    struct disassemble_info info = {};
++
++    arch_bfdInitDisassembleInfoStub(&info, instr, arch_bfdFPrintF, arch_bfdFPrintFStyled);
+     info.arch          = bfd_get_arch(bfdh);
+     info.mach          = bfd_get_mach(bfdh);
+     info.buffer        = mem;