diff for duplicates of <87r1ko8dlj.fsf@linaro.org>
diff --git a/a/1.txt b/N1/1.txt
index 5b792f0..1fb76ab 100644
--- a/a/1.txt
+++ b/N1/1.txt
@@ -1,4 +1,3 @@
-
Peter Maydell <peter.maydell@linaro.org> writes:
> On Tue, 9 Mar 2021 at 14:23, Alex Bennée <alex.bennee@linaro.org> wrote:
@@ -69,4 +68,44 @@ reverted to the original code with the new helper:
--
-Alex Bennée
\ No newline at end of file
+Alex Bennée
+
+--
+You received this bug notification because you are a member of qemu-
+devel-ml, which is subscribed to QEMU.
+https://bugs.launchpad.net/bugs/1915925
+
+Title:
+ ARM semihosting HEAPINFO results wrote to wrong address
+
+Status in QEMU:
+ Confirmed
+
+Bug description:
+ This affects latest development branch of QEMU.
+
+ According to the ARM spec of the HEAPINFO semihosting call:
+
+ https://developer.arm.com/documentation/100863/0300/Semihosting-
+ operations/SYS-HEAPINFO--0x16-?lang=en
+
+ > the PARAMETER REGISTER contains the address of a pointer to a four-
+ field data block.
+
+ However, QEMU treated the PARAMETER REGISTER as pointing to a four-
+ field data block directly.
+
+ Here is a simple program that can demonstrate this problem:
+ https://github.com/iNvEr7/qemu-learn/tree/newlib-bug/semihosting-
+ newlib
+
+ This code links with newlib with semihosting mode, which will call the
+ HEAPINFO SVC during crt0 routine. When running in QEMU (make run), it
+ may crash the program either because of invalid write or memory
+ curruption, depending on the compiled program structure.
+
+ Also refer to my discussion with newlib folks:
+ https://sourceware.org/pipermail/newlib/2021/018260.html
+
+To manage notifications about this bug go to:
+https://bugs.launchpad.net/qemu/+bug/1915925/+subscriptions
\ No newline at end of file
diff --git a/a/content_digest b/N1/content_digest
index edd83ee..198ce10 100644
--- a/a/content_digest
+++ b/N1/content_digest
@@ -1,5 +1,5 @@
[
- "ref\00020210309141727.12522-1-alex.bennee\@linaro.org\0"
+ "ref\000161356438332.24036.4652954745285513495.malonedeb\@chaenomeles.canonical.com\0"
]
[
"ref\00020210309141727.12522-4-alex.bennee\@linaro.org\0"
@@ -8,21 +8,16 @@
"ref\0CAFEAcA_zFYAWc=03iSdsj-Sy+MN5-DWih4QKzddZJsrRjrzhOw\@mail.gmail.com\0"
]
[
- "From\0Alex Benn\303\251e <alex.bennee\@linaro.org>\0"
+ "From\0Alex Benn\303\251e <1915925\@bugs.launchpad.net>\0"
]
[
- "Subject\0Re: [PATCH v2 3/4] semihosting/arm-compat-semi: deref parameter register for SYS_HEAPINFO\0"
+ "Subject\0[Bug 1915925] Re: [PATCH v2 3/4] semihosting/arm-compat-semi: deref parameter register for SYS_HEAPINFO\0"
]
[
- "Date\0Tue, 09 Mar 2021 17:01:28 +0000\0"
+ "Date\0Tue, 09 Mar 2021 17:01:28 -0000\0"
]
[
- "To\0Peter Maydell <peter.maydell\@linaro.org>\0"
-]
-[
- "Cc\0Keith Packard <keithp\@keithp.com>",
- " Bug 1915925 <1915925\@bugs.launchpad.net>",
- " QEMU Developers <qemu-devel\@nongnu.org>\0"
+ "To\0qemu-devel\@nongnu.org\0"
]
[
"\0000:1\0"
@@ -31,7 +26,6 @@
"b\0"
]
[
- "\n",
"Peter Maydell <peter.maydell\@linaro.org> writes:\n",
"\n",
"> On Tue, 9 Mar 2021 at 14:23, Alex Benn\303\251e <alex.bennee\@linaro.org> wrote:\n",
@@ -102,7 +96,47 @@
"\n",
"\n",
"-- \n",
- "Alex Benn\303\251e"
+ "Alex Benn\303\251e\n",
+ "\n",
+ "-- \n",
+ "You received this bug notification because you are a member of qemu-\n",
+ "devel-ml, which is subscribed to QEMU.\n",
+ "https://bugs.launchpad.net/bugs/1915925\n",
+ "\n",
+ "Title:\n",
+ " ARM semihosting HEAPINFO results wrote to wrong address\n",
+ "\n",
+ "Status in QEMU:\n",
+ " Confirmed\n",
+ "\n",
+ "Bug description:\n",
+ " This affects latest development branch of QEMU.\n",
+ "\n",
+ " According to the ARM spec of the HEAPINFO semihosting call:\n",
+ "\n",
+ " https://developer.arm.com/documentation/100863/0300/Semihosting-\n",
+ " operations/SYS-HEAPINFO--0x16-?lang=en\n",
+ "\n",
+ " > the PARAMETER REGISTER contains the address of a pointer to a four-\n",
+ " field data block.\n",
+ "\n",
+ " However, QEMU treated the PARAMETER REGISTER as pointing to a four-\n",
+ " field data block directly.\n",
+ "\n",
+ " Here is a simple program that can demonstrate this problem:\n",
+ " https://github.com/iNvEr7/qemu-learn/tree/newlib-bug/semihosting-\n",
+ " newlib\n",
+ "\n",
+ " This code links with newlib with semihosting mode, which will call the\n",
+ " HEAPINFO SVC during crt0 routine. When running in QEMU (make run), it\n",
+ " may crash the program either because of invalid write or memory\n",
+ " curruption, depending on the compiled program structure.\n",
+ "\n",
+ " Also refer to my discussion with newlib folks:\n",
+ " https://sourceware.org/pipermail/newlib/2021/018260.html\n",
+ "\n",
+ "To manage notifications about this bug go to:\n",
+ "https://bugs.launchpad.net/qemu/+bug/1915925/+subscriptions"
]
-e389749ef7a0eddda62e9992a8188d197572fc0c9aa1ecc5160b2c03070d2afc
+af9a8880b4af00ee59f007fbbfd84e613805f9adcaa35838f1f5ca2cf578aecd
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