bsd-user: Remove image_info.start_brk

This has the same value is image_info.brk, which is also logged,
and is otherwise unused.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230818175736.144194-4-richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Warner Losh <imp@bsdimp.com>

bsd-user/elfload.c

@@ -811,7 +811,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
                                        bprm->stringp, &elf_ex, load_addr,
                                        et_dyn_addr, interp_load_addr, info);
     info->load_addr = reloc_func_desc;
-    info->start_brk = info->brk = elf_brk;
+    info->brk = elf_brk;
     info->start_stack = bprm->p;
     info->load_bias = 0;
 

bsd-user/main.c

@@ -553,8 +553,6 @@ int main(int argc, char **argv)
             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",

bsd-user/qemu.h

@@ -50,7 +50,6 @@ struct image_info {
     abi_ulong end_code;
     abi_ulong start_data;
     abi_ulong end_data;
-    abi_ulong start_brk;
     abi_ulong brk;
     abi_ulong rss;
     abi_ulong start_stack;