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musl: allocator: Fix __THROW and mallinfo

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klzgrad 2022-11-09 23:36:59 +08:00
parent 4f3e62ea6a
commit 7be3abda58
4 changed files with 18 additions and 3 deletions
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7
src/base/allocator/partition_allocator/src/partition_alloc/partition_root.cc
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@ -277,7 +277,12 @@ void PartitionAllocMallocInitOnce() {
return; return;
} }
#if PA_BUILDFLAG(IS_LINUX) || PA_BUILDFLAG(IS_CHROMEOS) #if defined(__MUSL__)
// Musl calls malloc() in pthread_atfork(), resulting in a deadlock.
static_cast<void>(BeforeForkInParent);
static_cast<void>(AfterForkInParent);
static_cast<void>(AfterForkInChild);
#elif PA_BUILDFLAG(IS_LINUX) || PA_BUILDFLAG(IS_CHROMEOS)
// When fork() is called, only the current thread continues to execute in the // When fork() is called, only the current thread continues to execute in the
// child process. If the lock is held, but *not* by this thread when fork() is // child process. If the lock is held, but *not* by this thread when fork() is
// called, we have a deadlock. // called, we have a deadlock.

4
src/base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_partition_alloc.cc
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@ -646,7 +646,9 @@ SHIM_ALWAYS_EXPORT int mallopt(int cmd, int value) __THROW {
#endif // !PA_BUILDFLAG(IS_APPLE) && !PA_BUILDFLAG(IS_ANDROID) #endif // !PA_BUILDFLAG(IS_APPLE) && !PA_BUILDFLAG(IS_ANDROID)
#if PA_BUILDFLAG(IS_LINUX) || PA_BUILDFLAG(IS_CHROMEOS) #if defined(__MUSL__)
// Musl does not support struct mallinfo.
#elif PA_BUILDFLAG(IS_LINUX) || PA_BUILDFLAG(IS_CHROMEOS)
SHIM_ALWAYS_EXPORT struct mallinfo mallinfo(void) __THROW { SHIM_ALWAYS_EXPORT struct mallinfo mallinfo(void) __THROW {
partition_alloc::SimplePartitionStatsDumper allocator_dumper; partition_alloc::SimplePartitionStatsDumper allocator_dumper;
Allocator()->DumpStats("malloc", true, &allocator_dumper); Allocator()->DumpStats("malloc", true, &allocator_dumper);

4
src/base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_internals.h
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@ -9,7 +9,9 @@
#if defined(__GNUC__) #if defined(__GNUC__)
#if PA_BUILDFLAG(IS_POSIX) #if defined(__MUSL__)
// Musl does not provide sys/cdefs.h
#elif PA_BUILDFLAG(IS_POSIX)
#include <sys/cdefs.h> // for __THROW #include <sys/cdefs.h> // for __THROW
#endif #endif

6
src/base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_override_libc_symbols.h
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@ -25,6 +25,12 @@
#include "partition_alloc/shim/allocator_shim_internals.h" #include "partition_alloc/shim/allocator_shim_internals.h"
// Musl does not specify anything for malloc() etc.
#if defined(__MUSL__)
#undef __THROW
#define __THROW
#endif
extern "C" { extern "C" {
// WARNING: Whenever a new function is added there (which, surprisingly enough, // WARNING: Whenever a new function is added there (which, surprisingly enough,