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Sun, 11 Dec 2016 08:38:53 -0500 Received: from [114.242.206.163] (port=49201 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cG4L3-0001eV-Sc for qemu-devel@nongnu.org; Sun, 11 Dec 2016 08:38:50 -0500 Received: from controller.loongson.cn (unknown [192.168.1.3]) by mail.loongson.cn (Coremail) with SMTP id AQAAf_BxD28VWE1Yv3EAAA--.1284S10; Sun, 11 Dec 2016 21:45:03 +0800 (CST) From: Jin Guojie To: qemu-devel@nongnu.org Date: Sun, 11 Dec 2016 21:36:23 +0800 Message-Id: <1481463385-15898-9-git-send-email-jinguojie@loongson.cn> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1481463385-15898-1-git-send-email-jinguojie@loongson.cn> References: <1481463385-15898-1-git-send-email-jinguojie@loongson.cn> X-CM-TRANSID: AQAAf_BxD28VWE1Yv3EAAA--.1284S10 X-Coremail-Antispam: 1UD129KBjvJXoW7Aw1rGw4xZw4ftFWrCrWUtwb_yoW8tFWxp3 yrW3Z8JF1rGrsrJrZ3ZrnxJryfG34kJr98JFWI9r42934kX34DWa9rGFWIya4kGrWkAr47 ZFyYvFWS9F48A3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUvF14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2z4x0Y4vE2Ix0cI8IcVAFwI0_ JFI_Gr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv6xkF7I0E14v26r4j6r4UJwAS0I0E0xvYzxvE52x082IY 62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUJVWUGwAv7V C2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4x0 Y48IcxkI7VAKI48G6xCjnVAKz4kxM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCF04k20xvY0x 0EwIxGrwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF 67kF1VAFwI0_JF0_Jw1lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7 CjxVAFwI0_Cr0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUCVW8JwCI42IY6I8E87Iv67AK xVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvj 4RJUUUUUUUU X-CM-SenderInfo: 5mlqw3prmlvqxorr0wxvrqhubq/ X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x [fuzzy] X-Received-From: 114.242.206.163 Subject: [Qemu-devel] [PATCH v6 08/10] tcg-mips: Add tcg unwind info X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: YunQiang Su , James Hogan , Jin Guojie , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Tested-by: Aurelien Jarno Tested-by: James Hogan Tested-by: YunQiang Su Signed-off-by: Richard Henderson Signed-off-by: Jin Guojie --- tcg/mips/tcg-target.inc.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/tcg/mips/tcg-target.inc.c b/tcg/mips/tcg-target.inc.c index 9e24662..b7e2586 100644 --- a/tcg/mips/tcg-target.inc.c +++ b/tcg/mips/tcg-target.inc.c @@ -2465,3 +2465,47 @@ void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr) atomic_set((uint32_t *)jmp_addr, deposit32(OPC_J, 0, 26, addr >> 2)); flush_icache_range(jmp_addr, jmp_addr + 4); } + +typedef struct { + DebugFrameHeader h; + uint8_t fde_def_cfa[4]; + uint8_t fde_reg_ofs[ARRAY_SIZE(tcg_target_callee_save_regs) * 2]; +} DebugFrame; + +#define ELF_HOST_MACHINE EM_MIPS +/* GDB doesn't appear to require proper setting of ELF_HOST_FLAGS, + which is good because they're really quite complicated for MIPS. */ + +static const DebugFrame debug_frame = { + .h.cie.len = sizeof(DebugFrameCIE) - 4, /* length after .len member */ + .h.cie.id = -1, + .h.cie.version = 1, + .h.cie.code_align = 1, + .h.cie.data_align = -(TCG_TARGET_REG_BITS / 8) & 0x7f, /* sleb128 */ + .h.cie.return_column = TCG_REG_RA, + + /* Total FDE size does not include the "len" member. */ + .h.fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, h.fde.cie_offset), + + .fde_def_cfa = { + 12, TCG_REG_SP, /* DW_CFA_def_cfa sp, ... */ + (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */ + (FRAME_SIZE >> 7) + }, + .fde_reg_ofs = { + 0x80 + 16, 9, /* DW_CFA_offset, s0, -72 */ + 0x80 + 17, 8, /* DW_CFA_offset, s2, -64 */ + 0x80 + 18, 7, /* DW_CFA_offset, s3, -56 */ + 0x80 + 19, 6, /* DW_CFA_offset, s4, -48 */ + 0x80 + 20, 5, /* DW_CFA_offset, s5, -40 */ + 0x80 + 21, 4, /* DW_CFA_offset, s6, -32 */ + 0x80 + 22, 3, /* DW_CFA_offset, s7, -24 */ + 0x80 + 30, 2, /* DW_CFA_offset, s8, -16 */ + 0x80 + 31, 1, /* DW_CFA_offset, ra, -8 */ + } +}; + +void tcg_register_jit(void *buf, size_t buf_size) +{ + tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame)); +}