From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 14 Jan 2026 13:36:00 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vg06S-001EXO-2E for lore@lore.pengutronix.de; Wed, 14 Jan 2026 13:36:00 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vg06R-0005Xk-0H for lore@pengutronix.de; Wed, 14 Jan 2026 13:36:00 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:To:In-Reply-To: References:Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version: Subject:Date:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Cy1ix9oltCzSkxEJwxGE0Fe1jgABm7brOw+s8Ayb/Yo=; b=juYXwluRYzy7P6wOUCVRFld3rm j8NP77BzuOF7xpiE7XBESlFRP4qzoqf9fbVmIIj4y3EFPLZbFWW+YxYD9GMf6Ji8V8PIRGxMr8BQZ jKYBE0B2e7RjFRFjSnYwUzwnXxO1tIkpkHMS0SNLRxsJKXTzYXjxn0jruzuDIi+OIYfwlhLy4p8KO KPvCGLj6I86Q4HZPYJyUkmiYjf73TNMaM9QmDtIKNcN3kb+OKYkf0z3lB0R/TrGE+ZP0OaW9ayQ+x 5J+fa/dpGibiZhzOzoqb5ucTAeLJp71N0e+yN95ti9WjXU8fImWp6IRaA8MeMsohHeyb42zZ2GED2 eNdkLI8w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vg05t-00000009C2H-3jla; Wed, 14 Jan 2026 12:35:25 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vg05m-00000009BvF-2HAP for barebox@lists.infradead.org; Wed, 14 Jan 2026 12:35:23 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vg05k-00050A-Un; Wed, 14 Jan 2026 13:35:16 +0100 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vg05l-000afA-1O; Wed, 14 Jan 2026 13:35:16 +0100 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1vfzlc-00000000TKs-1A72; Wed, 14 Jan 2026 13:14:28 +0100 From: Sascha Hauer Date: Wed, 14 Jan 2026 13:14:44 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260114-pbl-load-elf-v4-19-0afa78d95a7e@pengutronix.de> References: <20260114-pbl-load-elf-v4-0-0afa78d95a7e@pengutronix.de> In-Reply-To: <20260114-pbl-load-elf-v4-0-0afa78d95a7e@pengutronix.de> To: BAREBOX X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1768392868; l=2713; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=CGtTH9zz6R5CFJoOrmBtRlpttPjjxqCzsMpWq0BS7uA=; b=U82DOhudL1cXt5PQrtbgfTKyb2y3+3UGjy1fli2sYh36qotqKVGHTqKpXJ23HawFq/VdEazVS ATrA3f4UDHCBv6jqXtvQXtTjrReIg/fIfsMitZVJ59ai76e697oelKL X-Developer-Key: i=s.hauer@pengutronix.de; a=ed25519; pk=4kuc9ocmECiBJKWxYgqyhtZOHj5AWi7+d0n/UjhkwTg= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260114_043520_208717_DB5E562C X-CRM114-Status: UNSURE ( 9.17 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Claude Sonnet 4.5" Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.9 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v4 19/22] riscv: linker script: create separate PT_LOAD segments for text, rodata, and data X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Fix the linker script to generate three distinct PT_LOAD segments with correct permissions instead of combining .rodata with .data. Before this fix, the linker auto-generated only two PT_LOAD segments: 1. Text segment (PF_R|PF_X) 2. Data segment (PF_R|PF_W) - containing .rodata, .data, .bss, etc. With explicit PHDRS directives, we now generate three segments: 1. text segment (PF_R|PF_X): .text and related code sections 2. rodata segment (PF_R): .rodata and related read-only sections 3. data segment (PF_R|PF_W): .data, .bss, and related sections With this we can setup the MMU properly from outside the ELF binary. Signed-off-by: Sascha Hauer --- arch/riscv/lib/barebox.lds.S | 38 +++++++++++++++++++++++++------------- 1 file changed, 25 insertions(+), 13 deletions(-) diff --git a/arch/riscv/lib/barebox.lds.S b/arch/riscv/lib/barebox.lds.S index 03b3a967193cfee1c67b96632cf972a553e8bec4..0cfa4bff57920bfaed822cb62c553c49f543994c 100644 --- a/arch/riscv/lib/barebox.lds.S +++ b/arch/riscv/lib/barebox.lds.S @@ -16,14 +16,23 @@ OUTPUT_ARCH(BAREBOX_OUTPUT_ARCH) ENTRY(start) OUTPUT_FORMAT(BAREBOX_OUTPUT_FORMAT) + +PHDRS +{ + text PT_LOAD FLAGS(5); /* PF_R | PF_X */ + rodata PT_LOAD FLAGS(4); /* PF_R */ + dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ + data PT_LOAD FLAGS(6); /* PF_R | PF_W */ +} + SECTIONS { . = 0x0; - .image_start : { *(.__image_start) } + .image_start : { *(.__image_start) } :text . = ALIGN(4); - ._text : { *(._text) } + ._text : { *(._text) } :text .text : { _stext = .; @@ -35,44 +44,47 @@ SECTIONS KEEP(*(.text_exceptions*)) __exceptions_stop = .; *(.text*) - } + } :text BAREBOX_BARE_INIT_SIZE - . = ALIGN(4); + . = ALIGN(4096); __start_rodata = .; .rodata : { *(.rodata*) RO_DATA_SECTION - } + } :rodata + + .dynamic : { *(.dynamic) } :rodata :dynamic __end_rodata = .; _etext = .; _sdata = .; - . = ALIGN(4); - .data : { *(.data*) } + . = ALIGN(4096); + + .data : { *(.data*) } :data /DISCARD/ : { *(.rela.plt*) } .rela.dyn : { __rel_dyn_start = .; *(.rel*) __rel_dyn_end = .; - } + } :data .dynsym : { __dynsym_start = .; *(.dynsym) __dynsym_end = .; - } + } :data _edata = .; - .image_end : { *(.__image_end) } + .image_end : { *(.__image_end) } :data . = ALIGN(4); - .__bss_start : { *(.__bss_start) } - .bss : { *(.bss*) } - .__bss_stop : { *(.__bss_stop) } + .__bss_start : { *(.__bss_start) } :data + .bss : { *(.bss*) } :data + .__bss_stop : { *(.__bss_stop) } :data _end = .; _barebox_image_size = __bss_start; } -- 2.47.3