From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH master 3/3] common: elf: reorganize barebox proper parts in struct elf_image
Date: Fri, 23 Jan 2026 14:17:13 +0100 [thread overview]
Message-ID: <20260123131922.2663665-4-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20260123131922.2663665-1-a.fatoum@pengutronix.de>
To make it clearer which parts of struct elf_image are used only in
barebox proper, reorganize the struct.
Also .base_load_addr is assigned and never used outside the function
that sets it, so turn it into a local variable instead.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
common/elf.c | 13 +++++++------
include/lib/elf.h | 11 ++++++-----
2 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/common/elf.c b/common/elf.c
index 296ff3ec7d4c..0df40c13a3a6 100644
--- a/common/elf.c
+++ b/common/elf.c
@@ -65,6 +65,7 @@ static int elf_compute_load_offset(struct elf_image *elf)
void *phdr = buf + elf_hdr_e_phoff(elf, buf);
u64 min_vaddr = (u64)-1;
u64 min_paddr = (u64)-1;
+ unsigned long base_load_addr;
/* Find lowest p_vaddr and p_paddr in PT_LOAD segments */
elf_for_each_segment(phdr, elf, buf) {
@@ -86,11 +87,11 @@ static int elf_compute_load_offset(struct elf_image *elf)
* 3. For ET_DYN, use lowest p_paddr
*/
if (elf->load_address)
- elf->base_load_addr = elf->load_address;
+ base_load_addr = (unsigned long)elf->load_address;
else if (elf->type == ET_EXEC)
- elf->base_load_addr = NULL;
+ base_load_addr = 0;
else
- elf->base_load_addr = (void *)(phys_addr_t)min_paddr;
+ base_load_addr = min_paddr;
/*
* Calculate relocation offset:
@@ -100,11 +101,11 @@ static int elf_compute_load_offset(struct elf_image *elf)
if (elf->type == ET_EXEC && !elf->load_address)
elf->reloc_offset = 0;
else
- elf->reloc_offset = ((unsigned long)elf->base_load_addr - min_vaddr);
+ elf->reloc_offset = base_load_addr - min_vaddr;
- pr_debug("ELF load: type=%s, base=%p, offset=%08lx\n",
+ pr_debug("ELF load: type=%s, base=%08lx, offset=%08lx\n",
elf->type == ET_EXEC ? "ET_EXEC" : "ET_DYN",
- elf->base_load_addr, elf->reloc_offset);
+ base_load_addr, elf->reloc_offset);
return 0;
}
diff --git a/include/lib/elf.h b/include/lib/elf.h
index 1521c81df6a7..c62d8f791273 100644
--- a/include/lib/elf.h
+++ b/include/lib/elf.h
@@ -7,17 +7,18 @@
#include <linux/list.h>
struct elf_image {
- struct list_head list;
u8 class;
u16 type; /* ET_EXEC or ET_DYN */
u64 entry;
+ void *hdr_buf;
+ void *load_address; /* User-specified load address (NULL = use p_paddr) */
+ unsigned long reloc_offset; /* Offset between p_vaddr and actual load address */
+
+ /* Only used in barebox proper */
+ struct list_head list;
void *low_addr;
void *high_addr;
- void *hdr_buf;
const char *filename;
- void *load_address; /* User-specified load address (NULL = use p_paddr) */
- void *base_load_addr; /* Calculated base address for ET_DYN */
- unsigned long reloc_offset; /* Offset between p_vaddr and actual load address */
};
static inline void elf_init_struct(struct elf_image *elf)
--
2.47.3
next prev parent reply other threads:[~2026-01-23 13:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-23 13:17 [PATCH master 0/3] elf: restructure to fix sandbox allyesconfig breakage Ahmad Fatoum
2026-01-23 13:17 ` [PATCH master 1/3] elf: rename elf.h to <linux/elf.h> Ahmad Fatoum
2026-01-23 13:17 ` [PATCH master 2/3] common: elf: split barebox proper-only ELF support from the rest Ahmad Fatoum
2026-01-23 13:17 ` Ahmad Fatoum [this message]
2026-01-26 7:33 ` [PATCH master 0/3] elf: restructure to fix sandbox allyesconfig breakage Sascha Hauer
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