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From: imp@bsdimp.com
To: qemu-devel@nongnu.org
Cc: kevans@freebsd.org,
	Richard Henderson <richard.henderson@linaro.org>,
	Warner Losh <imp@FreeBSD.org>, Warner Losh <imp@bsdimp.com>
Subject: [PULL 31/42] bsd-user: Remove dead #ifdefs from elfload.c
Date: Tue,  7 Sep 2021 15:53:21 -0600	[thread overview]
Message-ID: <20210907215332.30737-32-imp@bsdimp.com> (raw)
In-Reply-To: <20210907215332.30737-1-imp@bsdimp.com>

From: Warner Losh <imp@FreeBSD.org>

LOW_ELF_STACK doesn't exist on FreeBSD and likely never will. Remove it.
Likewise, remove an #if 0 block that's not useful

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 bsd-user/elfload.c | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c
index 6156f9775d..11ca813c7a 100644
--- a/bsd-user/elfload.c
+++ b/bsd-user/elfload.c
@@ -558,9 +558,6 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
     abi_ulong elf_entry, interp_load_addr = 0;
     abi_ulong start_code, end_code, start_data, end_data;
     abi_ulong reloc_func_desc = 0;
-#ifdef LOW_ELF_STACK
-    abi_ulong elf_stack = ~((abi_ulong)0UL);
-#endif
 
     load_addr = 0;
     load_bias = 0;
@@ -761,11 +758,6 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
             exit(-1);
         }
 
-#ifdef LOW_ELF_STACK
-        if (TARGET_ELF_PAGESTART(elf_ppnt->p_vaddr) < elf_stack)
-            elf_stack = TARGET_ELF_PAGESTART(elf_ppnt->p_vaddr);
-#endif
-
         if (!load_addr_set) {
             load_addr_set = 1;
             load_addr = elf_ppnt->p_vaddr - elf_ppnt->p_offset;
@@ -823,9 +815,6 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
 
     close(bprm->fd);
 
-#ifdef LOW_ELF_STACK
-    info->start_stack = bprm->p = elf_stack - 4;
-#endif
     bprm->p = target_create_elf_tables(bprm->p, bprm->argc, bprm->envc,
                                        bprm->stringp, &elf_ex, load_addr,
                                        load_bias, interp_load_addr, info);
@@ -843,15 +832,6 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
 
     padzero(elf_bss, elf_brk);
 
-#if 0
-    printf("(start_brk) %x\n" , info->start_brk);
-    printf("(end_code) %x\n" , info->end_code);
-    printf("(start_code) %x\n" , info->start_code);
-    printf("(end_data) %x\n" , info->end_data);
-    printf("(start_stack) %x\n" , info->start_stack);
-    printf("(brk) %x\n" , info->brk);
-#endif
-
     info->entry = elf_entry;
 
     return 0;
-- 
2.32.0



  parent reply	other threads:[~2021-09-07 22:15 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-07 21:52 [PULL 00/42] bsd-user updates to run hello world imp
2021-09-07 21:52 ` [PULL 01/42] bsd-user: remove sparc and sparc64 imp
2021-09-07 21:52 ` [PULL 02/42] bsd-user: add copyright header to elfload.c imp
2021-09-07 21:52 ` [PULL 03/42] bsd-user: Add Stacey's copyright to main.c imp
2021-09-07 21:52 ` [PULL 04/42] bsd-user: add license to bsdload.c imp
2021-09-07 21:52 ` [PULL 05/42] bsd-user: style nits: bsdload.c whitespace to qemu standard imp
2021-09-07 21:52 ` [PULL 06/42] bsd-user: Remove all non-x86 code from elfload.c imp
2021-09-07 21:52 ` [PULL 07/42] bsd-user: move arch specific defines out of elfload.c imp
2021-09-07 21:52 ` [PULL 08/42] bsd-user: pass the bsd_param into loader_exec imp
2021-09-07 21:52 ` [PULL 09/42] bsd-user: Fix calculation of size to allocate imp
2021-09-07 21:53 ` [PULL 10/42] bsd-user: implement path searching imp
2021-09-07 21:53 ` [PULL 11/42] bsd-user: Eliminate elf personality imp
2021-09-07 21:53 ` [PULL 12/42] bsd-user: remove a.out support imp
2021-09-07 21:53 ` [PULL 13/42] bsd-user: TARGET_NGROUPS unused in this file, remove imp
2021-09-07 21:53 ` [PULL 14/42] bsd-user: elfload: simplify bswap a bit imp
2021-09-07 21:53 ` [PULL 15/42] bsd-user: assume pthreads and support of __thread imp
2021-09-07 21:53 ` [PULL 16/42] bsd-user: add host-os.h imp
2021-09-07 21:53 ` [PULL 17/42] bsd-user: Include host-os.h from main imp
2021-09-07 21:53 ` [PULL 18/42] bsd-user: save the path to the qemu emulator imp
2021-09-07 21:53 ` [PULL 19/42] bsd-user: start to move target CPU functions to target_arch* imp
2021-09-07 21:53 ` [PULL 20/42] bsd-user: Move per-cpu code into target_arch_cpu.h imp
2021-09-07 21:53 ` [PULL 21/42] bsd-user: pull in target_arch_thread.h update target_arch_elf.h imp
2021-09-07 21:53 ` [PULL 22/42] bsd-user: Include more things in qemu.h imp
2021-09-07 21:53 ` [PULL 23/42] bsd-user: define max args in terms of pages imp
2021-09-07 21:53 ` [PULL 24/42] bsd-user: Create target specific vmparam.h imp
2021-09-07 21:53 ` [PULL 25/42] bsd-user: Add system independent stack, data and text limiting imp
2021-09-07 21:53 ` [PULL 26/42] bsd-user: *BSD specific siginfo defintions imp
2021-09-07 21:53 ` [PULL 27/42] bsd-user: Implement --seed and initialize random state imp
2021-09-07 21:53 ` [PULL 28/42] bsd-user: Move stack initializtion into a per-os file imp
2021-09-07 21:53 ` [PULL 29/42] bsd-user: Add architecture specific signal tramp code imp
2021-09-07 21:53 ` [PULL 30/42] bsd-user: elf cleanup imp
2021-09-07 21:53 ` imp [this message]
2021-09-07 21:53 ` [PULL 32/42] bsd-user: Rewrite target system call definintion glue imp
2021-09-07 21:53 ` [PULL 33/42] bsd-user: update debugging in mmap.c imp
2021-09-07 21:53 ` [PULL 34/42] bsd-user: Add target_arch_reg to describe a target's register set imp
2021-09-07 21:53 ` [PULL 35/42] bsd-user: Add target_os_user.h to capture the user/kernel structures imp
2021-09-07 21:53 ` [PULL 36/42] bsd-user: add stubbed out core dump support imp
2021-09-07 21:53 ` [PULL 37/42] bsd-user: elfload.c style catch up patch imp
2021-09-07 21:53 ` [PULL 38/42] bsd-user: Refactor load_elf_sections and is_target_elf_binary imp
2021-09-07 21:53 ` [PULL 39/42] bsd-user: move gemu_log to later in the file imp
2021-09-07 21:53 ` [PULL 40/42] bsd-user: Implement interlock for atomic operations imp
2021-09-07 21:53 ` [PULL 41/42] bsd-user: Add '-0 argv0' option to bsd-user/main.c imp
2021-09-07 21:53 ` [PULL 42/42] bsd-user: Update mapping to handle reserved and starting conditions imp
2021-09-09 15:00 ` [PULL 00/42] bsd-user updates to run hello world Peter Maydell
2021-09-09 15:12   ` Warner Losh
2021-09-09 15:21     ` Daniel P. Berrangé
2021-09-09 16:31     ` Philippe Mathieu-Daudé
2021-09-10 20:35       ` Warner Losh
2021-09-09 16:29 ` Philippe Mathieu-Daudé
2021-09-10 20:31   ` Warner Losh

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