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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.227.17.20; envelope-from=deller@gmx.de; helo=mout.gmx.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity deller@gmx.de) X-ZM-MESSAGEID: 1691138867094100003 Content-Type: text/plain; charset="utf-8" Show the memory location of the heap in the /proc/pid/maps file inside the guest. Store the heap address in ts->heap_base, which requires to make that variable accessible for all guest architectures, not just architectures for semihosted binaries (arm, m68k, riscv). Show 32- and 64-bit pointers with 8 digits and leading zeros (%08x/%08lx). For 64-bit we could use %16lx, but we mimic the Linux kernel, which shows even 64-bit addresses with %08lx. Example: user@machine:/# uname -a Linux paq 5.15.88+ #47 SMP Sun Jan 15 12:53:11 CET 2023 aarch64 GNU/Linux user@machine:/# cat /proc/self/maps Linux p100 6.4.4-200.fc38.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Jul 19 16:32:49= UTC 2023 aarch64 GNU/Linux 5500000000-5500009000 r-xp 00000000 fd:00 570430 /u= sr/bin/cat 5500009000-550001f000 ---p 00000000 00:00 0 550001f000-5500020000 r--p 0000f000 fd:00 570430 /u= sr/bin/cat 5500020000-5500021000 rw-p 00010000 fd:00 570430 /u= sr/bin/cat 5500021000-5500042000 rw-p 00000000 00:00 0 [h= eap] 7000000000-7000001000 ---p 00000000 00:00 0 7000001000-7000801000 rw-p 00000000 00:00 0 [s= tack] 7000801000-7000827000 r-xp 00000000 fd:00 571555 /u= sr/lib/aarch64-linux-gnu/ld-linux-aarch64.so.1 7000827000-700083f000 ---p 00000000 00:00 0 700083f000-7000841000 r--p 0002e000 fd:00 571555 /u= sr/lib/aarch64-linux-gnu/ld-linux-aarch64.so.1 7000841000-7000843000 rw-p 00030000 fd:00 571555 /u= sr/lib/aarch64-linux-gnu/ld-linux-aarch64.so.1 7000843000-7000844000 r-xp 00000000 00:00 0 7000844000-7000846000 rw-p 00000000 00:00 0 7000850000-70009d7000 r-xp 00000000 fd:00 571558 /u= sr/lib/aarch64-linux-gnu/libc.so.6 70009d7000-70009ed000 ---p 00187000 fd:00 571558 /u= sr/lib/aarch64-linux-gnu/libc.so.6 70009ed000-70009f0000 r--p 0018d000 fd:00 571558 /u= sr/lib/aarch64-linux-gnu/libc.so.6 70009f0000-70009f2000 rw-p 00190000 fd:00 571558 /u= sr/lib/aarch64-linux-gnu/libc.so.6 Signed-off-by: Helge Deller --- include/exec/cpu_ldst.h | 4 ++-- linux-user/main.c | 1 + linux-user/qemu.h | 4 ++-- linux-user/syscall.c | 8 ++++++-- 4 files changed, 11 insertions(+), 6 deletions(-) diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index 645476f0e5..f1e6f31e88 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -72,10 +72,10 @@ */ #if TARGET_VIRT_ADDR_SPACE_BITS <=3D 32 typedef uint32_t abi_ptr; -#define TARGET_ABI_FMT_ptr "%x" +#define TARGET_ABI_FMT_ptr "%08x" #else typedef uint64_t abi_ptr; -#define TARGET_ABI_FMT_ptr "%"PRIx64 +#define TARGET_ABI_FMT_ptr "%08"PRIx64 #endif #ifndef TARGET_TAGGED_ADDRESSES diff --git a/linux-user/main.c b/linux-user/main.c index 51ee8649e2..c1838f5d4f 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -986,6 +986,7 @@ int main(int argc, char **argv, char **envp) the real value of GUEST_BASE into account. */ tcg_prologue_init(tcg_ctx); + ts->heap_base =3D info->brk; target_cpu_copy_regs(env, regs); if (gdbstub) { diff --git a/linux-user/qemu.h b/linux-user/qemu.h index 4f8b55e2fb..6d08453124 100644 --- a/linux-user/qemu.h +++ b/linux-user/qemu.h @@ -119,11 +119,11 @@ typedef struct TaskState { #ifdef TARGET_M68K abi_ulong tp_value; #endif -#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_RISCV) + /* Extra fields for semihosted binaries. */ abi_ulong heap_base; abi_ulong heap_limit; -#endif + abi_ulong stack_base; int used; /* non zero if used */ struct image_info *info; diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7c2c2f6e2f..beba1c9cde 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -8090,14 +8090,18 @@ static int open_self_maps_1(CPUArchState *cpu_env, = int fd, bool smaps) continue; } + path =3D e->path; + + if (ts->heap_base && h2g(min) =3D=3D ts->heap_base) { + path =3D "[heap]"; + } + #ifdef TARGET_HPPA if (h2g(max) =3D=3D ts->info->stack_limit) { #else if (h2g(min) =3D=3D ts->info->stack_limit) { #endif path =3D "[stack]"; - } else { - path =3D e->path; } count =3D dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr -- 2.41.0