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[Qemu-arm] [PATCH] linux-user: Add AT_PLATFORM for arm
From: |
Richard Henderson |
Subject: |
[Qemu-arm] [PATCH] linux-user: Add AT_PLATFORM for arm |
Date: |
Mon, 11 Feb 2019 23:36:28 -0800 |
Fixes: https://bugs.launchpad.net/bugs/1813034
Signed-off-by: Richard Henderson <address@hidden>
---
linux-user/elfload.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 775a36ccdd..dde640a2ea 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -500,6 +500,35 @@ static uint32_t get_elf_hwcap2(void)
#undef GET_FEATURE
#undef GET_FEATURE_ID
+#define ELF_PLATFORM get_elf_platform()
+
+static const char *get_elf_platform(void)
+{
+ CPUARMState *env = thread_cpu->env_ptr;
+
+#ifdef TARGET_WORDS_BIGENDIAN
+# define END "b"
+#else
+# define END "l"
+#endif
+
+ if (arm_feature(env, ARM_FEATURE_V7)) {
+ if (arm_feature(env, ARM_FEATURE_M)) {
+ return "v7m" END;
+ } else {
+ return "v7" END;
+ }
+ } else if (arm_feature(env, ARM_FEATURE_V6)) {
+ return "v6" END;
+ } else if (arm_feature(env, ARM_FEATURE_V5)) {
+ return "v5" END;
+ } else {
+ return "v4" END;
+ }
+
+#undef END
+}
+
#else
/* 64 bit ARM definitions */
#define ELF_START_MMAP 0x80000000
--
2.17.2
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