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nixpkgs/pkgs/by-name/v4/v4l-utils/musl.patch
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2025-10-09 14:15:47 +02:00

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From fa120ba1a02437c762fc6a37a60728cac380aa41 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zsolt=20Vad=C3=A1sz?= <zsolt_vadasz@protonmail.com>
Date: Sun, 11 May 2025 12:34:28 +0000
Subject: [PATCH] v4l2-tracer: Allow building on systems using musl
Signed-off-by: Zsolt Vadasz <zsolt_vadasz@protonmail.com>
Message-ID: <4dgJekVdP7lLqOQ6JNW05sRHSkRmLLMMQnEn8NGUHPoHDn4SBkaGlHUW89vkJJu3IeFDAh3p6mlplTJJlWJx8V4rr62-hd83quCJ2sIuqoA=@protonmail.com>
---
utils/v4l2-tracer/retrace.cpp | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/utils/v4l2-tracer/retrace.cpp b/utils/v4l2-tracer/retrace.cpp
index 010936c0..0acce10c 100644
--- a/utils/v4l2-tracer/retrace.cpp
+++ b/utils/v4l2-tracer/retrace.cpp
@@ -10,10 +10,14 @@ extern struct retrace_context ctx_retrace;
void retrace_mmap(json_object *mmap_obj, bool is_mmap64)
{
json_object *mmap_args_obj;
+#if defined(linux) && defined(__GLIBC__)
if (is_mmap64)
json_object_object_get_ex(mmap_obj, "mmap64", &mmap_args_obj);
else
json_object_object_get_ex(mmap_obj, "mmap", &mmap_args_obj);
+#else
+ json_object_object_get_ex(mmap_obj, "mmap", &mmap_args_obj);
+#endif
json_object *len_obj;
json_object_object_get_ex(mmap_args_obj, "len", &len_obj);
@@ -46,16 +50,24 @@ void retrace_mmap(json_object *mmap_obj, bool is_mmap64)
return;
void *buf_address_retrace_pointer = nullptr;
+#if defined(linux) && defined(__GLIBC__)
if (is_mmap64)
buf_address_retrace_pointer = mmap64(0, len, prot, flags, fd_retrace, off);
else
buf_address_retrace_pointer = mmap(0, len, prot, flags, fd_retrace, off);
+#else
+ buf_address_retrace_pointer = mmap(0, len, prot, flags, fd_retrace, off);
+#endif
if (buf_address_retrace_pointer == MAP_FAILED) {
+#if defined(linux) && defined(__GLIBC__)
if (is_mmap64)
perror("mmap64");
else
perror("mmap");
+#else
+ perror("mmap");
+#endif
debug_line_info();
print_context();
exit(EXIT_FAILURE);
@@ -116,10 +128,14 @@ void retrace_open(json_object *jobj, bool is_open64)
int fd_trace = json_object_get_int(fd_trace_obj);
json_object *open_args_obj;
+#if defined(linux) && defined(__GLIBC__)
if (is_open64)
json_object_object_get_ex(jobj, "open64", &open_args_obj);
else
json_object_object_get_ex(jobj, "open", &open_args_obj);
+#else
+ json_object_object_get_ex(jobj, "open", &open_args_obj);
+#endif
json_object *path_obj;
std::string path_trace;
@@ -148,10 +164,14 @@ void retrace_open(json_object *jobj, bool is_open64)
mode = s2number(json_object_get_string(mode_obj));
int fd_retrace = 0;
+#if defined(linux) && defined(__GLIBC__)
if (is_open64)
fd_retrace = open64(path_retrace.c_str(), oflag, mode);
else
fd_retrace = open(path_retrace.c_str(), oflag, mode);
+#else
+ fd_retrace = open(path_retrace.c_str(), oflag, mode);
+#endif
if (fd_retrace <= 0) {
line_info("\n\tCan't open: %s", path_retrace.c_str());
@@ -162,10 +182,14 @@ void retrace_open(json_object *jobj, bool is_open64)
if (is_verbose() || errno != 0) {
fprintf(stderr, "path: %s ", path_retrace.c_str());
+#if defined(linux) && defined(__GLIBC__)
if (is_open64)
perror("open64");
else
perror("open");
+#else
+ perror("open");
+#endif
debug_line_info();
print_context();
}
--
2.49.0