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From: "Alex Bennée" <alex.bennee@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Riku Voipio" <riku.voipio@iki.fi>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Laurent Vivier" <laurent@vivier.eu>
Subject: [PATCH  v2 2/6] linux-user: convert target_mmap debug to tracepoint
Date: Thu,  5 Dec 2019 12:25:13 +0000	[thread overview]
Message-ID: <20191205122518.10010-3-alex.bennee@linaro.org> (raw)
In-Reply-To: <20191205122518.10010-1-alex.bennee@linaro.org>

It is a pain to re-compile when you need to debug and tracepoints are
a fairly low impact way to instrument QEMU.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 linux-user/mmap.c       | 27 +--------------------------
 linux-user/trace-events |  1 +
 2 files changed, 2 insertions(+), 26 deletions(-)

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 26a83e74069..f4f10deaeac 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -363,32 +363,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
     abi_ulong ret, end, real_start, real_end, retaddr, host_offset, host_len;
 
     mmap_lock();
-#ifdef DEBUG_MMAP
-    {
-        printf("mmap: start=0x" TARGET_ABI_FMT_lx
-               " len=0x" TARGET_ABI_FMT_lx " prot=%c%c%c flags=",
-               start, len,
-               prot & PROT_READ ? 'r' : '-',
-               prot & PROT_WRITE ? 'w' : '-',
-               prot & PROT_EXEC ? 'x' : '-');
-        if (flags & MAP_FIXED)
-            printf("MAP_FIXED ");
-        if (flags & MAP_ANONYMOUS)
-            printf("MAP_ANON ");
-        switch(flags & MAP_TYPE) {
-        case MAP_PRIVATE:
-            printf("MAP_PRIVATE ");
-            break;
-        case MAP_SHARED:
-            printf("MAP_SHARED ");
-            break;
-        default:
-            printf("[MAP_TYPE=0x%x] ", flags & MAP_TYPE);
-            break;
-        }
-        printf("fd=%d offset=" TARGET_ABI_FMT_lx "\n", fd, offset);
-    }
-#endif
+    trace_target_mmap(start, len, prot, flags, fd, offset);
 
     if (!len) {
         errno = EINVAL;
diff --git a/linux-user/trace-events b/linux-user/trace-events
index 8419243de4e..8d8d4c3c68c 100644
--- a/linux-user/trace-events
+++ b/linux-user/trace-events
@@ -14,3 +14,4 @@ user_s390x_restore_sigregs(void *env, uint64_t sc_psw_addr, uint64_t env_psw_add
 
 # mmap.c
 target_mprotect(uint64_t start, uint64_t len, int flags) "start=0x%"PRIx64 " len=0x%"PRIx64 " prot=0x%x"
+target_mmap(uint64_t start, uint64_t len, int pflags, int mflags, int fd, uint64_t offset) "start=0x%"PRIx64 " len=0x%"PRIx64 " prot=0x%x flags=0x%x fd=%d offset=0x%"PRIx64
-- 
2.20.1



  parent reply	other threads:[~2019-12-05 13:40 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-05 12:25 [PATCH v2 0/6] linux-user mmap debug cleanup Alex Bennée
2019-12-05 12:25 ` [PATCH v2 1/6] linux-user: convert target_mprotect debug to tracepoint Alex Bennée
2019-12-05 15:43   ` Richard Henderson
2019-12-11 14:46   ` Laurent Vivier
2019-12-05 12:25 ` Alex Bennée [this message]
2019-12-05 15:44   ` [PATCH v2 2/6] linux-user: convert target_mmap " Richard Henderson
2019-12-11 14:48   ` Laurent Vivier
2019-12-05 12:25 ` [PATCH v2 3/6] linux-user: add target_mmap_complete tracepoint Alex Bennée
2019-12-11 14:48   ` Laurent Vivier
2019-12-05 12:25 ` [PATCH v2 4/6] linux-user: log page table changes under -d page Alex Bennée
2019-12-05 15:45   ` Richard Henderson
2019-12-11 14:53   ` Laurent Vivier
2019-12-05 12:25 ` [PATCH v2 5/6] linux-user: convert target_munmap debug to a tracepoint Alex Bennée
2019-12-11 14:54   ` Laurent Vivier
2019-12-16 12:00     ` Alex Bennée
2019-12-16 12:05       ` Laurent Vivier
2019-12-18 20:03         ` Alex Bennée
2019-12-05 12:25 ` [PATCH v2 6/6] trace: replace hand-crafted pattern_glob with g_pattern_match_simple Alex Bennée
2019-12-05 15:51   ` Richard Henderson
2019-12-06 11:03   ` Stefan Hajnoczi
2019-12-06 11:59     ` Alex Bennée
2019-12-09 15:58   ` Stefan Hajnoczi

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