diff mbox series

[PULL,07/42] bsd-user: move arch specific defines out of elfload.c

Message ID 20210910203011.63003-2-imp@bsdimp.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Warner Losh Sept. 10, 2021, 8:30 p.m. UTC 
From: Warner Losh <imp@bsdimp.com>

Move the architecture specific defines to target_arch_elf.h and delete
them from elfload.c. Only retain ifdefs appropriate for i386 and x86_64.
Add the copyright/license comments, and guard ifdefs.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 bsd-user/elfload.c                | 81 +------------------------------
 bsd-user/i386/target_arch_elf.h   | 81 +++++++++++++++++++++++++++++++
 bsd-user/x86_64/target_arch_elf.h | 67 +++++++++++++++++++++++++
 3 files changed, 150 insertions(+), 79 deletions(-)
 create mode 100644 bsd-user/i386/target_arch_elf.h
 create mode 100644 bsd-user/x86_64/target_arch_elf.h
diff mbox series

Patch

diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c
index fffa24f041..639673f5b7 100644
--- a/bsd-user/elfload.c
+++ b/bsd-user/elfload.c
@@ -23,6 +23,8 @@ 
 #include "disas/disas.h"
 #include "qemu/path.h"
 
+#include "target_arch_elf.h"
+
 /* from personality.h */
 
 /*
@@ -93,85 +95,6 @@  enum {
 #define ELIBBAD 80
 #endif
 
-#ifdef TARGET_I386
-
-#define ELF_PLATFORM get_elf_platform()
-
-static const char *get_elf_platform(void)
-{
-    static char elf_platform[] = "i386";
-    int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL);
-    if (family > 6)
-        family = 6;
-    if (family >= 3)
-        elf_platform[1] = '0' + family;
-    return elf_platform;
-}
-
-#define ELF_HWCAP get_elf_hwcap()
-
-static uint32_t get_elf_hwcap(void)
-{
-    X86CPU *cpu = X86_CPU(thread_cpu);
-
-    return cpu->env.features[FEAT_1_EDX];
-}
-
-#ifdef TARGET_X86_64
-#define ELF_START_MMAP 0x2aaaaab000ULL
-#define elf_check_arch(x) (((x) == ELF_ARCH))
-
-#define ELF_CLASS      ELFCLASS64
-#define ELF_DATA       ELFDATA2LSB
-#define ELF_ARCH       EM_X86_64
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
-{
-    regs->rax = 0;
-    regs->rsp = infop->start_stack;
-    regs->rip = infop->entry;
-    if (bsd_type == target_freebsd) {
-        regs->rdi = infop->start_stack;
-    }
-}
-
-#else /* !TARGET_X86_64 */
-
-#define ELF_START_MMAP 0x80000000
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) (((x) == EM_386) || ((x) == EM_486))
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS       ELFCLASS32
-#define ELF_DATA        ELFDATA2LSB
-#define ELF_ARCH        EM_386
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
-{
-    regs->esp = infop->start_stack;
-    regs->eip = infop->entry;
-
-    /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
-       starts %edx contains a pointer to a function which might be
-       registered using `atexit'.  This provides a mean for the
-       dynamic linker to call DT_FINI functions for shared libraries
-       that have been loaded before the code runs.
-
-       A value of 0 tells we have no such handler.  */
-    regs->edx = 0;
-}
-#endif /* !TARGET_X86_64 */
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       4096
-
-#endif
-
 #ifndef ELF_PLATFORM
 #define ELF_PLATFORM (NULL)
 #endif
diff --git a/bsd-user/i386/target_arch_elf.h b/bsd-user/i386/target_arch_elf.h
new file mode 100644
index 0000000000..84f61bd930
--- /dev/null
+++ b/bsd-user/i386/target_arch_elf.h
@@ -0,0 +1,81 @@ 
+/*
+ *  i386 ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_PLATFORM get_elf_platform()
+
+static const char *get_elf_platform(void)
+{
+    static char elf_platform[] = "i386";
+    int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL);
+    if (family > 6) {
+        family = 6;
+    }
+    if (family >= 3) {
+        elf_platform[1] = '0' + family;
+    }
+    return elf_platform;
+}
+
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+    X86CPU *cpu = X86_CPU(thread_cpu);
+
+    return cpu->env.features[FEAT_1_EDX];
+}
+
+#define ELF_START_MMAP 0x80000000
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) (((x) == EM_386) || ((x) == EM_486))
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS32
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_386
+
+static inline void init_thread(struct target_pt_regs *regs,
+                               struct image_info *infop)
+{
+    regs->esp = infop->start_stack;
+    regs->eip = infop->entry;
+
+    /*
+     * SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
+     * starts %edx contains a pointer to a function which might be
+     * registered using `atexit'.  This provides a mean for the
+     * dynamic linker to call DT_FINI functions for shared libraries
+     * that have been loaded before the code runs.
+     *
+     * A value of 0 tells we have no such handler.
+     */
+    regs->edx = 0;
+}
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/x86_64/target_arch_elf.h b/bsd-user/x86_64/target_arch_elf.h
new file mode 100644
index 0000000000..e7c8aa2755
--- /dev/null
+++ b/bsd-user/x86_64/target_arch_elf.h
@@ -0,0 +1,67 @@ 
+/*
+ *  x86_64 ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_PLATFORM get_elf_platform()
+
+static const char *get_elf_platform(void)
+{
+    static char elf_platform[] = "i386";
+    int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL);
+    if (family > 6) {
+        family = 6;
+    }
+    if (family >= 3) {
+        elf_platform[1] = '0' + family;
+    }
+    return elf_platform;
+}
+
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+    X86CPU *cpu = X86_CPU(thread_cpu);
+
+    return cpu->env.features[FEAT_1_EDX];
+}
+
+#define ELF_START_MMAP 0x2aaaaab000ULL
+#define elf_check_arch(x) (((x) == ELF_ARCH))
+
+#define ELF_CLASS      ELFCLASS64
+#define ELF_DATA       ELFDATA2LSB
+#define ELF_ARCH       EM_X86_64
+
+static inline void init_thread(struct target_pt_regs *regs,
+                               struct image_info *infop)
+{
+    regs->rax = 0;
+    regs->rsp = infop->start_stack;
+    regs->rip = infop->entry;
+    if (bsd_type == target_freebsd) {
+        regs->rdi = infop->start_stack;
+    }
+}
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+#endif /* _TARGET_ARCH_ELF_H_ */