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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: Helge Deller <deller@gmx.de>, Akihiko Odaki <akihiko.odaki@daynix.com>
Subject: [PULL 19/24] linux-user: Properly set image_info.brk in flatload
Date: Sat,  5 Aug 2023 20:37:10 -0700	[thread overview]
Message-ID: <20230806033715.244648-20-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230806033715.244648-1-richard.henderson@linaro.org>

The heap starts at "brk" not "start_brk".  With this fixed,
image_info.start_brk is unused and may be removed.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/qemu.h     | 1 -
 linux-user/flatload.c | 2 +-
 linux-user/main.c     | 2 --
 3 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 4b0c9da0dc..4f8b55e2fb 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -29,7 +29,6 @@ struct image_info {
         abi_ulong       end_code;
         abi_ulong       start_data;
         abi_ulong       end_data;
-        abi_ulong       start_brk;
         abi_ulong       brk;
         abi_ulong       start_mmap;
         abi_ulong       start_stack;
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index 5efec2630e..8f5e9f489b 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -811,7 +811,7 @@ int load_flt_binary(struct linux_binprm *bprm, struct image_info *info)
     info->end_code = libinfo[0].start_code + libinfo[0].text_len;
     info->start_data = libinfo[0].start_data;
     info->end_data = libinfo[0].end_data;
-    info->start_brk = libinfo[0].start_brk;
+    info->brk = libinfo[0].start_brk;
     info->start_stack = sp;
     info->stack_limit = libinfo[0].start_brk;
     info->entry = start_addr;
diff --git a/linux-user/main.c b/linux-user/main.c
index cb5e80612b..96be354897 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -963,8 +963,6 @@ int main(int argc, char **argv, char **envp)
             fprintf(f, "page layout changed following binary load\n");
             page_dump(f);
 
-            fprintf(f, "start_brk   0x" TARGET_ABI_FMT_lx "\n",
-                    info->start_brk);
             fprintf(f, "end_code    0x" TARGET_ABI_FMT_lx "\n",
                     info->end_code);
             fprintf(f, "start_code  0x" TARGET_ABI_FMT_lx "\n",
-- 
2.34.1



  parent reply	other threads:[~2023-08-06  3:39 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-06  3:36 [PULL 00/24] tcg + linux-user queue for 8.1-rc3 Richard Henderson
2023-08-06  3:36 ` [PULL 01/24] accel/tcg: Adjust parameters and locking with do_{ld, st}_mmio_* Richard Henderson
2023-08-06  3:36 ` [PULL 02/24] accel/tcg: Issue wider aligned i/o in do_{ld,st}_mmio_* Richard Henderson
2023-08-06  3:36 ` [PULL 03/24] accel/tcg: Do not issue misaligned i/o Richard Henderson
2023-08-06  3:36 ` [PULL 04/24] gdbstub: use 0 ("any process") on packets with no PID Richard Henderson
2023-08-06  3:36 ` [PULL 05/24] linux-user: Unset MAP_FIXED_NOREPLACE for host Richard Henderson
2023-08-06  3:36 ` [PULL 06/24] linux-user: Fix MAP_FIXED_NOREPLACE on old kernels Richard Henderson
2023-08-06  3:36 ` [PULL 07/24] linux-user: Do not call get_errno() in do_brk() Richard Henderson
2023-08-06  6:53   ` Michael Tokarev
2023-08-07  1:23     ` Richard Henderson
2023-08-06  3:36 ` [PULL 08/24] linux-user: Use MAP_FIXED_NOREPLACE for do_brk() Richard Henderson
2023-08-06  3:37 ` [PULL 09/24] linux-user: Do nothing if too small brk is specified Richard Henderson
2023-08-06  3:37 ` [PULL 10/24] linux-user: Do not align brk with host page size Richard Henderson
2023-08-06  3:37 ` [PULL 11/24] linux-user: Remove last_brk Richard Henderson
2023-08-06  3:37 ` [PULL 12/24] bsd-user: " Richard Henderson
2023-08-06  3:37 ` [PULL 13/24] linux-user: Adjust task_unmapped_base for reserved_va Richard Henderson
2023-08-06  3:37 ` [PULL 14/24] linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h Richard Henderson
2023-08-06  3:37 ` [PULL 15/24] linux-user: Define ELF_ET_DYN_BASE " Richard Henderson
2023-08-06  3:37 ` [PULL 16/24] linux-user: Use MAP_FIXED_NOREPLACE for initial image mmap Richard Henderson
2023-08-06  3:37 ` [PULL 17/24] linux-user: Use elf_et_dyn_base for ET_DYN with interpreter Richard Henderson
2023-08-06  3:37 ` [PULL 18/24] linux-user: Adjust initial brk when interpreter is close to executable Richard Henderson
2023-08-06  3:37 ` Richard Henderson [this message]
2023-08-06  3:37 ` [PULL 20/24] linux-user: Do not adjust image mapping for host page size Richard Henderson
2023-08-06  3:37 ` [PULL 21/24] linux-user: Do not adjust zero_bss " Richard Henderson
2023-08-06  3:37 ` [PULL 22/24] linux-user: Use zero_bss for PT_LOAD with no file contents too Richard Henderson
2023-08-06  3:37 ` [PULL 23/24] accel/tcg: Call save_iotlb_data from io_readx as well Richard Henderson
2023-08-06  3:37 ` [PULL 24/24] linux-user/elfload: Set V in ELF_HWCAP for RISC-V Richard Henderson
2023-08-07  1:22 ` [PULL 00/24] tcg + linux-user queue for 8.1-rc3 Richard Henderson
2023-08-23 13:04 ` Failing avocado tests in CI (was: Re: [PULL 00/24] tcg + linux-user queue for 8.1-rc3) Thomas Huth
2023-08-23 16:27   ` Richard Henderson
2023-08-24 15:31     ` Alex Bennée
2023-08-24 16:23       ` Michael Tokarev
2023-08-25 11:05         ` Philippe Mathieu-Daudé
2023-08-24 18:31       ` Richard Henderson
2023-08-25 11:36         ` Philippe Mathieu-Daudé

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