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-rw-r--r--meta-multimedia/recipes-multimedia/libcamera/libcamera/0002-options-Replace-use-of-VLAs-in-C.patch128
1 files changed, 128 insertions, 0 deletions
diff --git a/meta-multimedia/recipes-multimedia/libcamera/libcamera/0002-options-Replace-use-of-VLAs-in-C.patch b/meta-multimedia/recipes-multimedia/libcamera/libcamera/0002-options-Replace-use-of-VLAs-in-C.patch
new file mode 100644
index 0000000000..473820653e
--- /dev/null
+++ b/meta-multimedia/recipes-multimedia/libcamera/libcamera/0002-options-Replace-use-of-VLAs-in-C.patch
@@ -0,0 +1,128 @@
+From 6e4736180fcaffdb06acf52fd3eb50ba5baa3d2a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 31 Jan 2024 21:04:28 -0800
+Subject: [PATCH] options: Replace use of VLAs in C++
+
+Clang++ 18 is fussy about this with new warning checks.
+
+ ../git/src/apps/common/options.cpp:882:20: error: variable length arrays in C++ are a Clang extension [-Werror,-Wvla-cxx-extension]
+ 882 | char shortOptions[optionsMap_.size() * 3 + 2];
+ | ^~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Therefore replace using VLAs with alloca and malloc/free
+
+Upstream-Status: Submitted [https://lists.libcamera.org/pipermail/libcamera-devel/2024-February/040381.html]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/apps/common/options.cpp | 12 ++++++++++--
+ src/libcamera/ipc_unixsocket.cpp | 13 +++++++++----
+ 2 files changed, 19 insertions(+), 6 deletions(-)
+
+diff --git a/src/apps/common/options.cpp b/src/apps/common/options.cpp
+index 4f7e8691..3656f3c1 100644
+--- a/src/apps/common/options.cpp
++++ b/src/apps/common/options.cpp
+@@ -879,8 +879,8 @@ OptionsParser::Options OptionsParser::parse(int argc, char **argv)
+ * Allocate short and long options arrays large enough to contain all
+ * options.
+ */
+- char shortOptions[optionsMap_.size() * 3 + 2];
+- struct option longOptions[optionsMap_.size() + 1];
++ char *shortOptions = (char*)malloc(optionsMap_.size() * 3 + 2);
++ struct option *longOptions = (struct option*)malloc(sizeof(struct option) * (optionsMap_.size() + 1));
+ unsigned int ids = 0;
+ unsigned int idl = 0;
+
+@@ -935,12 +935,16 @@ OptionsParser::Options OptionsParser::parse(int argc, char **argv)
+ std::cerr << argv[optind - 1] << std::endl;
+
+ usage();
++ free(shortOptions);
++ free(longOptions);
+ return options;
+ }
+
+ const Option &option = *optionsMap_[c];
+ if (!parseValue(option, optarg, &options)) {
+ usage();
++ free(shortOptions);
++ free(longOptions);
+ return options;
+ }
+ }
+@@ -949,10 +953,14 @@ OptionsParser::Options OptionsParser::parse(int argc, char **argv)
+ std::cerr << "Invalid non-option argument '" << argv[optind]
+ << "'" << std::endl;
+ usage();
++ free(shortOptions);
++ free(longOptions);
+ return options;
+ }
+
+ options.valid_ = true;
++ free(shortOptions);
++ free(longOptions);
+ return options;
+ }
+
+diff --git a/src/libcamera/ipc_unixsocket.cpp b/src/libcamera/ipc_unixsocket.cpp
+index 1980d374..3bd861cb 100644
+--- a/src/libcamera/ipc_unixsocket.cpp
++++ b/src/libcamera/ipc_unixsocket.cpp
+@@ -8,6 +8,7 @@
+ #include "libcamera/internal/ipc_unixsocket.h"
+
+ #include <array>
++#include <cstdint>
+ #include <poll.h>
+ #include <string.h>
+ #include <sys/socket.h>
+@@ -247,8 +248,8 @@ int IPCUnixSocket::sendData(const void *buffer, size_t length,
+ iov[0].iov_base = const_cast<void *>(buffer);
+ iov[0].iov_len = length;
+
+- char buf[CMSG_SPACE(num * sizeof(uint32_t))];
+- memset(buf, 0, sizeof(buf));
++ char *buf = (char*)malloc(CMSG_SPACE(num * sizeof(uint32_t)));
++ memset((void*)buf, 0, sizeof(buf));
+
+ struct cmsghdr *cmsg = (struct cmsghdr *)buf;
+ cmsg->cmsg_len = CMSG_LEN(num * sizeof(uint32_t));
+@@ -270,9 +271,11 @@ int IPCUnixSocket::sendData(const void *buffer, size_t length,
+ int ret = -errno;
+ LOG(IPCUnixSocket, Error)
+ << "Failed to sendmsg: " << strerror(-ret);
++ free(buf);
+ return ret;
+ }
+
++ free(buf);
+ return 0;
+ }
+
+@@ -283,8 +286,8 @@ int IPCUnixSocket::recvData(void *buffer, size_t length,
+ iov[0].iov_base = buffer;
+ iov[0].iov_len = length;
+
+- char buf[CMSG_SPACE(num * sizeof(uint32_t))];
+- memset(buf, 0, sizeof(buf));
++ char *buf = (char*)malloc(CMSG_SPACE(num * sizeof(uint32_t)));
++ memset((void*)buf, 0, sizeof(buf));
+
+ struct cmsghdr *cmsg = (struct cmsghdr *)buf;
+ cmsg->cmsg_len = CMSG_LEN(num * sizeof(uint32_t));
+@@ -305,12 +308,14 @@ int IPCUnixSocket::recvData(void *buffer, size_t length,
+ if (ret != -EAGAIN)
+ LOG(IPCUnixSocket, Error)
+ << "Failed to recvmsg: " << strerror(-ret);
++ free(buf);
+ return ret;
+ }
+
+ if (fds)
+ memcpy(fds, CMSG_DATA(cmsg), num * sizeof(uint32_t));
+
++ free(buf);
+ return 0;
+ }
+