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AJvYcCX0gtlbQ5tDTzlSWPvew2Y8qdumE4r6P5NQ8LNS3pdAXIPq/mu16CV+7opdQF0fNMF+XXXVilf0QcXs@vger.kernel.org X-Gm-Message-State: AOJu0YzHWtPrtOeeIpq86IAfT0BTc0nGyizDXGZYfmHIz4sCRCgBH9mG oHOatP9fNReSSyaieWj93Y/F88FaI+0WIjibe4F3Cf1DFl50D+PX+GCw17DM7BF7v4BNHavkDmQ FPjjmmfdjQ0aQ/4+1ig== X-Google-Smtp-Source: AGHT+IFf+tT8KEZ4bOrXCsQXmpdi3VAAa0VDdDuJqsBmNk6vQmoBDyCE42yQpSuuN+bhZNXSvklX9SUFaH5ZyqI= X-Received: from wmbjd5.prod.google.com ([2002:a05:600c:68c5:b0:475:de3d:2cc9]) (user=sidnayyar job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6000:26ce:b0:426:d5ac:8660 with SMTP id ffacd0b85a97d-429bd6e3dbamr12562628f8f.58.1762186805589; Mon, 03 Nov 2025 08:20:05 -0800 (PST) Date: Mon, 3 Nov 2025 16:19:49 +0000 In-Reply-To: <20251103161954.1351784-1-sidnayyar@google.com> Precedence: bulk X-Mailing-List: linux-arch@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251103161954.1351784-1-sidnayyar@google.com> X-Mailer: git-send-email 2.51.1.930.gacf6e81ea2-goog Message-ID: <20251103161954.1351784-4-sidnayyar@google.com> Subject: [PATCH v3 3/8] modpost: create entries for kflagstab From: Siddharth Nayyar To: petr.pavlu@suse.com, corbet@lwn.net Cc: arnd@arndb.de, linux-arch@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-modules@vger.kernel.org, mcgrof@kernel.org, nathan@kernel.org, nicolas.schier@linux.dev, samitolvanen@google.com, sidnayyar@google.com, maennich@google.com, gprocida@google.com Content-Type: text/plain; charset="UTF-8" Signed-off-by: Siddharth Nayyar Reviewed-by: Petr Pavlu --- include/linux/export-internal.h | 7 +++++++ scripts/mod/modpost.c | 8 ++++++++ 2 files changed, 15 insertions(+) diff --git a/include/linux/export-internal.h b/include/linux/export-internal.h index d445705ac13c..4123c7592404 100644 --- a/include/linux/export-internal.h +++ b/include/linux/export-internal.h @@ -69,4 +69,11 @@ ".long " #crc "\n" \ ".previous" "\n") +#define SYMBOL_FLAGS(sym, flags) \ + asm(" .section \"___kflagstab+" #sym "\",\"a\"" "\n" \ + "__flags_" #sym ":" "\n" \ + " .byte " #flags "\n" \ + " .previous" "\n" \ + ) + #endif /* __LINUX_EXPORT_INTERNAL_H__ */ diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 5ca7c268294e..f5ce7aeed52d 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -244,6 +244,11 @@ static struct symbol *alloc_symbol(const char *name) return s; } +static uint8_t get_symbol_flags(const struct symbol *sym) +{ + return sym->is_gpl_only ? KSYM_FLAG_GPL_ONLY : 0; +} + /* For the hash of exported symbols */ static void hash_add_symbol(struct symbol *sym) { @@ -1865,6 +1870,9 @@ static void add_exported_symbols(struct buffer *buf, struct module *mod) buf_printf(buf, "KSYMTAB_%s(%s, \"%s\", \"%s\");\n", sym->is_func ? "FUNC" : "DATA", sym->name, sym->is_gpl_only ? "_gpl" : "", sym->namespace); + + buf_printf(buf, "SYMBOL_FLAGS(%s, 0x%02x);\n", + sym->name, get_symbol_flags(sym)); } if (!modversions) -- 2.51.1.930.gacf6e81ea2-goog