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linux-user: Adjust brk for load_bias 

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: 1f356e8c01 ("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>
This commit is contained in:
Richard Henderson 2023-08-16 10:32:18 -07:00
parent 7b7a3366e1
commit aec338d63b
1 changed files with 1 additions and 1 deletions
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2
linux-user/elfload.c
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@ -3327,7 +3327,7 @@ 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;