From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-stable@nongnu.org, "Helge Deller" <deller@gmx.de>,
"Ilya Leoshkevich" <iii@linux.ibm.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH 06/13] linux-user: Adjust brk for load_bias
Date: Wed, 23 Aug 2023 18:02:30 -0700 [thread overview]
Message-ID: <20230824010237.1379735-7-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230824010237.1379735-1-richard.henderson@linaro.org>
PIE executables are usually linked at offset 0 and are
relocated somewhere during load. The hiaddr needs to
be adjusted to keep the brk next to the executable.
Cc: qemu-stable@nongnu.org
Fixes: 1f356e8c013 ("linux-user: Adjust initial brk when interpreter is close to executable")
Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/elfload.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index d5f67de288..dbc5d430e8 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -3326,7 +3326,7 @@ static void load_elf_image(const char *image_name, int image_fd,
info->start_data = -1;
info->end_data = 0;
/* Usual start for brk is after all sections of the main executable. */
- info->brk = TARGET_PAGE_ALIGN(hiaddr);
+ info->brk = TARGET_PAGE_ALIGN(hiaddr + load_bias);
info->elf_flags = ehdr->e_flags;
prot_exec = PROT_EXEC;
--
2.34.1
next prev parent reply other threads:[~2023-08-24 1:03 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-24 1:02 [PATCH 00/13] linux-user patch queue Richard Henderson
2023-08-24 1:02 ` [PATCH 01/13] linux-user: Split out cpu/target_proc.h Richard Henderson
2023-09-01 14:35 ` Philippe Mathieu-Daudé
2023-08-24 1:02 ` [PATCH 02/13] linux-user: Emulate /proc/cpuinfo on aarch64 and arm Richard Henderson
2023-08-24 1:02 ` [PATCH 03/13] linux-user: Emulate /proc/cpuinfo for Alpha Richard Henderson
2025-01-21 10:39 ` Philippe Mathieu-Daudé
2023-08-24 1:02 ` [PATCH 04/13] util/selfmap: Use dev_t and ino_t in MapInfo Richard Henderson
2023-08-24 1:02 ` [PATCH 05/13] linux-user: Use walk_memory_regions for open_self_maps Richard Henderson
2023-08-24 1:02 ` Richard Henderson [this message]
2023-08-24 1:02 ` [PATCH 07/13] linux-user: Show heap address in /proc/pid/maps Richard Henderson
2023-09-01 14:39 ` Philippe Mathieu-Daudé
2023-08-24 1:02 ` [PATCH 08/13] linux-user: Emulate the Anonymous: keyword in /proc/self/smaps Richard Henderson
2023-09-01 14:37 ` Philippe Mathieu-Daudé
2023-08-24 1:02 ` [PATCH 09/13] linux-user: Remove ELF_START_MMAP and image_info.start_mmap Richard Henderson
2023-08-24 1:02 ` [PATCH 10/13] linux-user: Move shmat and shmdt implementations to mmap.c Richard Henderson
2023-08-24 1:02 ` [PATCH 11/13] linux-user: Use WITH_MMAP_LOCK_GUARD in target_{shmat, shmdt} Richard Henderson
2023-09-01 14:58 ` Helge Deller
2023-08-24 1:02 ` [PATCH 12/13] linux-user: Fix shmdt Richard Henderson
2023-09-01 14:38 ` Philippe Mathieu-Daudé
2023-08-24 1:02 ` [PATCH 13/13] linux-user: Track shm regions with an interval tree Richard Henderson
2023-09-01 15:10 ` Helge Deller
2023-09-01 2:32 ` [PATCH 00/13] linux-user patch queue Richard Henderson
2023-09-01 15:12 ` Helge Deller
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